Maize breeding for the maize-coffee system
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A USAID-funded study by Williams College economist Douglas Gollin shows that modern maize and wheat varieties not only increase maximum yields in developing countries, but add hundreds of millions of dollars each year to farmersâ incomes by guaranteeing more reliable yields than traditional varieties.
Modern crop varieties developed through scientific crop breeding clearly produce higher yields than farmersâ traditional varieties. But critics have long maintained that, in developing countries, yields of modern varieties vary more from season to season than the traditional varieties, thereby exposing producers and consumers to greater risk.
Gollinâs study analyzed changes in national-level yield stability for wheat and maize across developing countries and related them directly to the diffusion of modern varieties. âThe outcomes strongly suggest that, over the past 40 years, there has actually been a decline in the relative variability of grain yieldsâthat is, the absolute magnitude of deviations from the yield trendâfor both wheat and, to a lesser extent, for maize in developing countries,â says Gollin. âThis reduction in variability is statistically associated with the spread of modern cultivars, even after controlling for expanded use of irrigation and other inputs.â
Valuing these reductions in yield variability requires assumptions about societyâs willingness to trade off risk against return. Using a standard analytic framework, the study finds that the reductions in variability are as valuable as small increases in average yield. Assuming a moderate level of risk aversion on farmersâ part and taking estimates for the magnitude of reductions in yield variability, the results suggest that the reductions in yield variability due to modern varieties are worth about 0.3% of annual production in the case of wheat and 0.8% of production in the case of maize. These appear to be small effects, but the sheer scale of wheat and maize production in the developing world means that the benefits from improved yield stability are large in absolute terms. At appropriate world prices, the benefits are about US$143 million for wheat and about US$149 million for maize, on an annual and recurring basis.
The study drew on country-level data for the diffusion of modern wheat and maize varieties compiled by Robert Evenson of Yale University, as well as aggregate data on production and yields from FAOSTAT, the global food information database of the Food and Agriculture Organization of the United Nations. The analysis also made novel use of a mathematical tool called the Hodrick-Prescott filter to disentangle changes in long term trends from annual fluctuations. The filter is most often used in macroeconomics.
According to Gollin, the benefits are not attributable to any particular research theme or program. âThey reflect longstanding efforts in breeding for disease and pest resistance, drought tolerance, and improved cropping systems, to name a few,â he says. âBy reducing the fluctuations in maize and wheat grain yields, scientists have played a vital role in making modern crop technology attractive, accessible, and beneficial to farmers and consumers around the globe.â
For more information contact John Dixon (j.dixon@cgiar.org)
Few agricultural inputs are as important as seed, for it is the nature of the seed that determines the basic potential of any cropping enterprise. Without good quality seed of adapted, improved and appropriate varieties, farmers will struggle to attain food security and profitable farming. In southern Africa, great strides have been made in the development of suitable varieties of maize for small-holder farmers. Many of these new varieties have been registered by national maize programs and seed companies, but the rate of scale-up and dissemination is insufficient to impact large numbers of house-holds. Therefore, more concerted efforts are required to progress towards the vision of the New Seed Initiative for Maize in Southern Africa (NSIMA).
The NSIMA Phase III is focused on increasing the uptake of improved maize varieties by small-holder farmers in Southern African Development Community through enhancing the effectiveness of the seed value chain. |
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Period: | 2011 â 2013 |
Objectives: | Develop and stimulate production, marketing and use of improved maize varieties with increased productivity, nutritional value and acceptance under the stress-prone conditions of resource-poor farmers. |
Partner countries: | Angola, Botswana, D.R. Congo (Katanga Province), Lesotho, Malawi, Mozambique, Swaziland, South Africa, Zambia and Zimbabwe. |
Funding institutions: | Swiss Agency for Development and Cooperation (SDC) |
Key Partner Institutions: | CIMMYT, NARES, GART, Africa Harvest, the Private Seed Sector, NGOs, and Community Farmer Organizations in SADC countries. |
Principal coordinators: | CIMMYT, Zimbabwe |
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Expected outputs: | |
Project organization: | NSIMA Regional Steering Committee for Maize working through National Coordinating Units in Participating Countries, supported by a Regional Coordination Unit based in CIMMYT-Zimbabwe. |
Highlights: | Highlights of phase II |
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It is a common dilemma for non-profits and assistance programs: how to deliver benefits to the needy without creating dependency or disrupting markets. Addressing this problem, Maize Seed for the Poor (MSP), a pilot project in Kenya, is exploring ways to offer farmers subsidized agricultural inputs to boost farm productivity, while also energizing local seed markets.
Zero-tillage trials in rainfed, winter wheat-fallow systems show smallholder farmers on the Anatolian Plains a way to double their harvests.
Muzzafer Avci is an agronomist with the Central Field Crops Research Institute of the Turkish Ministry of Agriculture. In recent years he has been working with CIMMYT wheat agronomist, Ken Sayre, and over time has become an advocate of zero-tillageâthe direct seeding of a crop into the residues of a previous crop, without plowingâfor rainfed winter wheat, a key crop for small-scale farmers on the Anatolian Plateau. On this day, he completes a drought impact forecast for the Ministry and drives the three hours east of Ankarato to the Ilci Cicekdagi farm, where the Royal Netherlands Embassy in Turkey has funded zero-tillage trials.
On the Anatolian Plateau, farms are typically less than 10 hectares in size. Wheat farmers obtain just a single harvest every second season from each field. Sowing takes place in autumn before the onset of winter. The wheat germinates quickly, lies dormant over the winter, and matures the following summer. After harvest the field is left fallow for a year before being sown to wheat again. During the fallow, farmers plow the weeds under two or three times. Even with the long fallow, which one would suppose helps conserve or improve soil fertility, typical wheat harvests on these farms reach only 2 tons per hectare, far below the cropâs genetic potential. Once highly productive, the winter wheat farming system has become more and more dependent on fertilizer as soils degrade, making it unsustainable.
A former state farm that was recently privatized, the Ilci Cicekdagi farm is not typical. It comprises 1,700 hectares and supports modern, diversified farming involving dairy and beef cattle, sheep, and many crops, among them wheat. The farm owner and managers believe they have a responsibility to assist less well-endowed, smallholder farmers in the area. So they hold demonstrations and field days for the local community. Farm manager Nedim Tabak says he hopes the farm will be a model for local farmers. He is proud of his zero-tillage trials and shows them off to Avci and to Carla Konsten, Agricultural Counselor from the Royal Netherlands Embassy in Ankara. The Netherlands, Canada, and Australia have funded pilot zero-tillage work in Turkey for the past two years and representatives of those countries’ funding agencies are pleased with the result. “This technology will clearly benefit farmers on the Anatolian Plateau,” says Avci, who learned about zero-tillage first-hand at a CIMMYT course on the topic.
Retired agronomist Mufit Kalayci, recently brought back to the Anatolian Agricultural Research Center in Eskisiher, Turkey, to mentor a new team, sees the value of zero-tillage in intensive, irrigated systems with more than a single crop per year, but is skeptical about using it with traditional rainfed wheat farms. “I don’t think you can retain enough moisture over the fallow period.” he says. For that reason, one of the goals of the zero-tillage experiment was to see if a second crop other than weeds could be grown during the fallow season. This question will be answered in coming years.
Of course, use of zero-tillage and retaining crop residues on the soil do more than simply capture and hold soil moisture. The practices reduce production costs and diesel fuel burning, and help prevent topsoil erosion from the strong winds that often sweep the Plateau during fallow. The elimination of repeated tillage to bury weeds also helps retain soil structure, aiding aeration and water filtration. The zero-tillage trials have obtained demonstration yields of more than 4 tons per hectareâdouble what farmers currently get.
Farm manager Tabak says his trials were sown late for lack of timely access to a zero-tillage seeder. He is planning to modify one of the seeders on the farm for next season. Already some local farmers have looked at his test plots and said they will try zero-tillage too next season.
For more information: Julie Nicol, Wheat Nematologist (j.nicol@cgiar.org)
Farmers and community leaders in Kenyaâs most densely-populated region have organized to produce and sell seed of a maize variety so well-suited for smallholders that distant peers in highland Nepal have also selected it.
According to Paul Okongâo, retired school teacher and leader of Technology Adoption through Research Organizations (TATRO), Ochur Village, Western Kenya, farmers first disliked the maize whose seed he and group members are producing. âIt has small grains, and they thought this would reduce its market value,â he explains. âBut when you sowed the seed, which looked small, what came out of it was not small!â
Small-scale maize farmers of the Regional Agricultural Association Group (RAAG), another community-based organization in Western Kenya, have quintupled their yields in only one yearânow obtaining more than 2 tons of maize grain per hectareâusing seed, fertilizer, and training from TATRO, according to RAAG coordinator, David Mukungu. âThis has meant that, besides having enough to eat, farmers were able to sell something to cover childrenâs school fees or other expenses,â says Mukungu. âWe started with six farmers the first year, but after other farmers saw the harvest, the number using the improved seed and practices increased to thirty, and we expect it will continue increasing.â
The variety whose seed TATRO grows is called Kakamega Synthetic-I. It is an open-pollinated varietyâa type often preferred over hybrids by cash-strapped smallholders, because they can save grain from the harvest and sow it as seed the following year, without losing its high yield or other desirable traits. The variety is also drought tolerant, matures earlier than other local varieties, and is better for making Kenyanâs favorite starchy staple, ugali. âWomen say it âpullsâ the water, which means you donât need much maize flour to make a good, heavy ugali,â Okongâo explains. âThese things seem small, but when taken together they weigh a lot for farmers who eat ugali as a daily staple.â
Kakamega Synthetic-I was released by the KARI research station in Kakamega, Kenya. Its pedigree traces back to the work of CIMMYT and many partners in southern and eastern Africaânational maize research programs, private companies, and non-government organizationsâto develop stress tolerant maize for the regionâs smallholders. âKakamega Synthetic I was selected from ZM621, a long-season, drought tolerant, open-pollinated variety now released in several African countries,â says Marianne BĂ€nziger, CIMMYT maize physiologist who took part in the creation of ZM621 and now serves as director of the centerâs Global Maize Program. âThe variety has also been released in Nepal, after small-scale farmers from the mid-hills chose it as one of their favorites in participatory varietal trials.â BĂ€nziger says. This highlights the role of a global organization like CIMMYT, which can draw upon and distribute public goods and expertise transcending national borders: âThe center was predicated upon and has practiced collaborative science âglobalizationâ for agricultural development since its inception four decades agoâlong before that term became fashionable in policy circles.â
By reducing risk for small-scale farmers, varieties like Kakamega Synthetic-I encourage investment in other amendments, like fertilizer, that can start smallholders on an upward spiral out of low-input, subsistence agriculture. Good varieties also entice enterprising farmers and community-based organizations like TATRO into potentially profitable businesses like seed production, for niches inadequately served by existing companies. âWe observe the seed production regulations of the KEPHIS, the Kenyan plant health inspectorate, and would like to work toward certification of our organization, to be able to sell certified seed in labeled packages and fetch better prices,â says Okongâo. TATRO is currently producing and marketing just under 2 tons of Kakamega Synthetic-Iâenough to sow more than 70 hectaresâeach year. The lack of effective informal seed production and distribution systems limits the spread of improved open pollinated maize varieties and farming practices in eastern Africa, according to Stephen Mugo. CIMMYT maize breeder in the region, Mugo also coordinated the former, Rockefeller Foundation-funded project âStrengthening maize seed supply systems for small-scale farmers in Western Kenya and Ugandaâ that involved TATRO and similar farmer organizations. âImproved varieties raised yields in the past and could do so again,â he says, âbut only about one-fifth of the regionâs farmers grow improved varieties.â
For more information, Stephen Mugo, maize breeder (s.mugo@cgiar.org)
Ethiopiaâs highland maize farmers now have a reason to smileâtwo reasons, as a matter of fact. Argene and Hora, recently released highland maize varieties, are spurring renewed hope for the countryâs agricultural productivity.
Speaking at a farmer field day held in Buâi, Oromiya, to showcase the new varietiesâ performance, Economic Advisor to the Prime Minister, Neway Gebre-Ab, termed the new varieties âa great breakthrough in research,â and said the future for highland farmers looked bright. âThere is great enthusiasm; the farmers told us they were expecting a bumper harvest of 7 to 8 tons per hectare this season,â said CIMMYT maize breeder and coordinator of the Highland Maize Project, Twumasi Afriyie.
For several decades now smallholders cropping the highlands of Ethiopia have wanted new, higher-yielding maize varieties. The cool, wet climate is ideal for the crop, yet varieties released in the 1970s and 80s did not fully exploit the benign climate. Indeed, the older varieties have been giving lower and lower yields in successive seasons. The old varieties also take a long time to mature. Today, many farmers here consume their entire crop green, leaving nothing to mature in the field, and thus risking their long-term food security. This long maturity period also means that farmers can grow only one crop each year.
Since 1998 CIMMYT and partners have been working to develop new, high-yielding maize varieties for the highlands. Thousands of parent lines have been tested and bred in a systematic collaboration with researchers in eastern and central Africa, with the work in Ethiopia being achieved in partnership with scientists at the Ambo National Plant Protection Research Center of the Ethiopian Institute of Agricultural Research (EIAR).
Argene and Hora have also been bred to withstand the important pests and diseases in the highlands. The new varieties mature in fewer days, and are stockier than traditional ones, which easily fall over (lodge) during storms or in strong winds.
Afriyie says Oromiya was a logical first home for the improved highland maize. The expansive state spans parts of western, central and southern Ethiopia, and is home to 26 million people. Nearly 90% are rural folk who depend on agriculture.
Higher maize production can make a real difference to the farmers in the region: The versatile crop can be eaten fresh off the cob or dried and pounded into flour to make different dishes. Poorer households are increasingly adding some maize meal to their injera batter (Ethiopiaâs best-loved staple, injera is a spongy, fermented flatbread made from teff flour). This is due to teffâs high price. Surplus maize can be dried and stored for later, or sold for cash.
The farmers who are growing the new varieties plan to capitalize fully on the early maturity. âWe can practice relay cropping and get two harvests in a season,â said one woman farmerâanother double benefit from the new highland maize.
For more information, Twumasi Afriyie (t.afriyie@cgiar.org)
CIMMYT shows technology to enhance farmer income and reduce ocean pollution
Wheat farmers in the Yaqui Valley of Mexicoâs Sonora State will be the first to gain from a new technology developed by CIMMYT researchers with partners from Oklahoma State and Stanford Universities. And while the farmers in Mexico will benefit, CIMMYT believes that farmers and the environment in many developing countries will reap rewards as well.
âI wish I had known about it this season,â said Ruben Luders when he saw the results. He farms 400 hectares of wheat in the Yaqui valley. âIt will save me money.â
What Luders and more than twenty-five other farmers saw in a demonstration was an effective and accurate way to determine both the right time and correct amount of nitrogen fertilizer to apply to a growing wheat crop. Wheat needs nitrogen to grow properly, but until now there has been no easy way to know how to apply it in an optimum way. Traditionally farmers in the region fertilize before they plant their seed and then again at the first post-planting irrigation. The new approach, developed in conjunction with Oklahoma State University in the United States, uses an infrared sensor to measure the yield potential of wheat plants as they grow.
âI had been looking for something to determine nitrogen requirements for a long time,â says CIMMYT wheat agronomist, Dr. Ivan Ortiz-Monasterio. âThis technology was already being used by CIMMYT scientists for other things, such as estimating the yield of different genotypes. It has taken time to calibrate it, but now we have a useful tool to determine the nitrogen a wheat plant needs.â
The sensor is held above the young, growing wheat plants and measures how much light is reflected in two different colorsâred and invisible infrared. In technical terms this is called measuring the Normalized Differential Vegetative Index (NVDI). After much testing, Ortiz-Monasterio and his colleagues from Oklahoma State found they could get a handheld computer to calculate the nitrogen requirement of the plants from the two readings.
The demonstration, conducted in the fields of four different farmer-volunteers, showed they could maintain their yields using far less fertilizer. That is because fertilizer residue from over-applications in past seasons can still be utilized by the new crop.
âWe used to feed the soil first, before growing the wheat,â says Luders. âNow we know we should feed the wheat.â He and his friends calculated that with just 80 hectares of wheat the nitrogen sensor, which costs about US $400, could pay for itself in a single season.
The demonstration was made possible because farmers in the Yaqui Valley have consistently supported the research work of CIMMYT and of Mexicoâs national agricultural research institute, INIFAP, in the area.
There is much more to this technology than a tool to maximize farm income. A recent Stanford University study published by the prestigious science journal Nature showed that each time farmers irrigate their fields, some of the excess nitrogen fertilizer washes into the nearby Sea of Cortez. The heavy load of nitrogen in the water results in blooms of algae which deplete the oxygen in the water. In other parts of the world such algae blooms can do serious damage to local fisheries. If widely adopted in the Yaqui Valley, the nitrogen-optimizing technology should result in less fertilizer washing into the sea.
Runoff of excess nitrogen fertilizer is a problem that will threaten many more sensitive bodies of water around the world, according to Ortiz-Monasterio. âAs farming systems intensify to feed more people, we need to increase production but minimize impact on the environment,â he says. So while farmers in the State of Sonora may be the first to benefit, they certainly will not be the last. Just five days before the demonstration in Ciudad Obregon, the first infrared sensor, a result of a USAID linkage grant with CIMMYT and Oklahoma State, arrived in Pakistan. This way, a technology proven in the field in Mexico will go on to assist farmers in poorer parts of the world and help maintain the health of coastal waters at the same time.
For further information, contact Ivan Ortiz-Monasterio (i.ortiz-monasterio@cgiar.org).
In Mexico, the wheat of the conquistadors helps scientists in their battle against drought.
Wheat first came to the Western hemisphere with the arrival of the Spanish conquistadors about 500 years ago. Since then, generations of Mexican farmers have tended their wheat fields with traditional varieties that differ little from their forebears by virtue of wheatâs self-pollinating nature. Today, these time-tested wheats represent a new source of genetic diversity that could improve yields in drought-ridden areas by as much as 30 percent.
CIMMYT scientists and their Mexican collaborators have gathered thousands of traditional wheat varieties, called landraces, from diverse locations in Mexico. Farmer and natural selection over five centuries have combined to screen these wheats for drought tolerance under often severe conditions. Researchers are looking to capture the drought adaptive traits of these hearty old-timers and breed them into modern, higher yielding varieties. Of the original 2,100 varietal samples collected, nine are very promising.
âWhat we found was that the best of these landraces show considerably higher expression for certain drought and heat adaptive traits than common wheat,â says CIMMYT wheat physiologist Matthew Reynolds. âHeat and drought stress often go hand in hand. Hot conditions exacerbate drought by evaporating more moisture from the soil, and when plants are dry their temperature rises. But with these traits, we might be able to increase the potential for yield under drought.â Drought plagues more than half of the wheat area in the developing world and so is a high priority for CIMMYTâs Rainfed Wheat Program.
There is a range of traits that can help wheat plants cope with dry conditions. Early in the season, many of the landraces showed an increased ability to accumulate carbohydrates in their stem, reserves that can be used later when the season gets drier for grain growth or to send roots deeper into the soil in search of water. A vigorous and rapidly growing leaf canopy can shade surrounding soil from the sunâs drying rays, thereby conserving soil moisture. Under stress conditions, the wheat spike can contribute to photosynthesis, which in turn promotes better development of the grain. While all of wheatâs organs can play an important role in producing grain in the face of drought, the root system is probably the most vital.
At a depth of 60-90cm below the soil, landraces had a more extensive root system and thus were able to extract more water out of the soil than common wheat. Not only did the landraces find more water, but they also used it more efficiently. âWe found an association in these landraces between increased yield and root length density,â Reynolds says. Where there is a more extensive root system, the wheat is able to draw more water and nutrients out of the soil, increasing grain. Tallied up, the potential yield gain from these landraces may be considerable for farmers in dry areas.
âThe next step is introducing these traits into the CIMMYT wheat breeding program,â says Reynolds. âBreeding and physiology work very closely to translate new information like this into useful products as quickly as possible by combining new drought adaptive traits with other traits such as disease resistance, good height, and time to maturity.â
For further information, contact Matthew Reynolds (m.reynolds@cgiar.org).
Although CGIAR centers share common human resources problems, do they communicate with each other and share successful solutions? Now five of them do just that, as partners in the Strategic Advisory Service for Human Resources (SAS-HR), says SAS-HR Director N.P. Rajasekharan.
Representatives from CIAT, CIMMYT, IPGRI, IWMI, and WorldFish attended the first business meeting of the Advisory Group for the SAS-HR from 14â16 April at CIMMYT-Mexico. These five centers and the CGIAR Secretariat are part of an initiative to develop a CGIAR human resources framework and meet management needs. The ultimate goal is to achieve each centerâs vision through the development of high caliber, committed, and motivated staff.
âIn talking about those common problems we did find a big convergence,â says conference participant Koen Geerts, IPGRIâs Director of Finance and Administration. âWhy not exchange information rather than re-inventing wheelsâŠand sometimes the wrong wheels?â
Geerts thinks it was a big accomplishment for the centers to come together and discuss shared problems. He also thinks the SAS-HR will benefit other centers, which may want to join after the group makes progress and produces results.
A highlight of the conferenceâs first day was a best practice showcase, where each center presented its most successful human resources strategies. IMWI focused on its implementation of the OneStaff approach, which was also mentioned as one of IPGRIâs strengths; WorldFish explained its job evaluation system; and CIAT presented its use of the Internet for recruitment, occupational health program, and Social Welfare Fund. CIMMYT described its national staff administration, corporate policies, and management of a recent downsizing.
âI think CIAT has got a very sound policy and practice in place covering occupational health and safety,â says conference participant Doug Dunstan in giving an example of how the centers can learn from each otherâs best practices. âWe can build on their learning and implement many of these things without having to invest huge amounts of time.â
Dunstan, the Associate Director General for Corporate Services at WorldFish, thinks the SAS-HR will help introduce a higher level of equity in the CG system and show that staff members are valuable resources that need to be looked after.
âThe main thrust will be one of harmonization and drawing out some very important themes that must permeate all of the CG system,â says Dunstan. He thinks the meeting was productive in defining project focuses and establishing a plan with detailed milestones. The openness and professionalism among participants impressed him, particularly while discussing sensitive issues.
Rajasekharan is optimistic that the SAS-HR will help centers attract, motivate, develop, and retain the people who will accomplish center and CGIAR missions. âWe want to foster more teamwork, transparency, and inclusiveness within the CGIAR,â he says. âWe started looking at strategic issues and common concerns for the centers last December.â
Participating centers save time and costs by sharing ideas, strategies, and solutions. Using staff and management input, they are already defining human resources needs, developing strategies that recognize center diversity and autonomy, creating solutions, and establishing an e-community of HR professionals.
“The advisory group for SAS-HR is on track to address my main expectations,â says CIAT Director General Joachim Voss. âI hope they will help us to create sensible, effective, and cost-saving changes.”
To ensure CGIAR success, centers must display not only excellence in science but also organizational effectiveness, according to CIMMYT Director General Masa Iwanaga, who opened the meeting. Other speakers included the World Bankâs Eric Schlesinger, who talked about 360-degree appraisal, and CGIAR Director Francisco Reifschneider with Ravi Tadvalkar, who addressed developments in the first CGIAR system-wide compensation survey via video.
âPeople are the foundation of our knowledge-based CGIAR system,â said Reifschneider. He endorsed the âOneStaffâ initiative, which aims to create an inclusive and equitable environment for all staff members regardless of employment contract differences. The initiative will promote transparency by providing equal opportunities and clearly explaining benefit differences to staff. It could facilitate movement from National to Regional to International staff categories by clearly defining what is needed for advancement.
Reifschneider observed that OneStaff will âfurther develop and support the vision and values that SAS-HR participating Centers have for their staff.â He noted that âthe concept behind OneStaff requires a gradual transition in the organizations, part of the evolution of the CGIAR System as a whole.â
Many staff members inquire about âwhat is going onâ within an organization, and management has the challenge of finding the best ways to communicate clearly with everyone, says WorldFish Director General Stephen Hall. âWe have to work hard to make it clear where the organization is going and what it is trying to do,â says Hall. He also advocates a transparent framework with open terms for compensation and recognition that bases differentiations not on place of birth or recruitment but rather on what people do for the organization.
If staff members want to voice opinions, they can take advantage of another SAS-HR project: a shared website named PeoplePower that has internal and public components. This tool will improve communication among staff members and management at the five centers. The public site will list vacancy postings and CV postings along with explanations of human resource practices and other features. The internal site will help staff share information, make suggestions, post events, and implement on-line processes such as training and opinion surveys. The websiteâs prototype, which was introduced at the meeting, includes a database for center policies, e-learning tools, and a virtual resource center.
Although developing new ideas and approaches will not be difficult, says Geerts, the challenge lies in getting people to accept change. He says clinging to an established way of working is a human reaction, and people will only permit change if they believe it is positive.
Dunstan agrees. âChange is a concept which is not readily understood or accepted by a large body of people,â he says. âItâs human nature not to accept initiatives because they are in fact a change from the status quo.â
Geerts sees many best practices emerging from this effort, and he thinks it is vital to think ahead and plan for centersâ needs in five or ten years. âThereâs a whole range of crucial HR-related matters on which we need to make progress,â he says. âThis is only a start.â
Other meeting participants included JesĂșs Antonio Cuellar, Carlos Meneses, and Gustavo Peralta from CIAT; Coen Kramer, Martin van Weerdenburg, Marisa De la O, Georgina Becerra, and Patricia Villaseñor from CIMMYT; Khar Hoay Tan from WorldFish; and Griselda Marquez from SAS-HR.
The next SAS-HR meeting is scheduled for 6-8 June in Colombo, Sri Lanka, at IWMI. IWMI has been working on the OneStaff concept and on the reformation of policies and practices, according to Director General Frank Rijsberman. He believes that the CGIAR can improve impacts in the areas where it works and also its position in the labor market by reforming HR policies
The June meeting will include presentations about the PeoplePower website, mainstreaming Gender and Diversity and knowledge management, results of a CGIAR-wide compensation survey, and a review of the projects. Human resources professionals from non-participating centers are invited to attend. The next SAS-HR Advisory Group meeting will be 25 October in Mexico during the Annual General Meeting.
To foster wider learning within the CGIAR, many SAS-HR meetings and initiatives will be open to all centers. For more information, contact N.P. Rajasekharan.
CIMMYT took a historic step in March 2004 by planting a small trial of genetically engineered wheat in its screenhouse at headquarters in El Batan, Mexico. It was the first time that transgenic wheat has been planted in Mexico under field-like conditions, and encouraging results have spurred plans for a more extensive follow-up trial.
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Researchers used genetic engineering to insert a gene from Arabidopsis thaliana, a relative of wild mustard, into wheat. The gene, DREB1A, was provided by the Japan International Research Center for Agricultural Sciences, and has been shown to confer tolerance to drought, low temperature, and salinity in its natural host. The small trial completed this year was conducted in full accordance with Mexican and CIMMYT biosafety procedures, and represents a critical step toward developing drought-tolerant wheat varieties by allowing scientists to see how the DREB1A-expressing wheat responds under more natural conditions.
Drought is one of the most important agricultural production problems in the world. Combined with shortages of irrigation water, it threatens the ability of many developing countries to produce enough grain to feed themselves. Currently, the 20% of global farmland that produces 40% of the worldâs food supply is irrigated.
âDrought is a complicated problem,â says CIMMYT cell biologist Alessandro Pellegrineschi, who led the trial. âWhen a plant is exposed to drought, there can be moisture stress, but there can also be heat or soil micro-element deficiencies or toxicities.â Because there are so many stresses, it is important to evaluate a potential solution under a variety of environments. Moreover, scientists are discovering that plants react to numerous stresses, especially to water deficiency and high levels of salt, in complex ways.
Looking at the trial results, Pellegrineschi and colleagues were encouraged when they observed a more normal, non-stressed phenotype in the transgenic lines under drought conditions. Near the trialâs end, the non-DREB control wheat was dry, yellow, and shriveled, while the DREB wheat was still green and thriving. Pellegrineschi was surprised that a single gene could bring about such a visible response.
Pellegrineschi says the results of this trial, which is part of CIMMYTâs joint work with the Australian Cooperative Research Centre for Molecular Plant Breeding, are compatible with previous observations from small pots in the biosafety greenhouse. Many of the measured traits correlated with the improved performance of transgenic lines under water stress. However, the results need to be verified in a larger field trial with selected transgenic lines.
This is the first time that a food crop carrying the DREB1A gene has advanced to this level of testing. The Mexican government, which had announced a moratorium on planting transgenic maize under field conditions in 1998, approved the trial in December 2003.
CIMMYT followed strict biosafety procedures and worked closely with the government of Mexico in planning, conducting, and monitoring the trial. Access to the screenhouse was restricted. The researchers covered all plant flowers with bags and did not allow other wheat plants to grow within 10 meters of the trial, even though it is unlikely that self-pollinating wheat plants would cross with each other. After the trial, all plant materials except the harvested seed were destroyed.
âThis was the first trial transgenic wheat trial after the government removed the moratorium on growing transgenic varieties under field conditions, so we were very conservative in our request to the Mexican authorities for approval of the initial trial,â says Pellegrineschi. âNow that we have had some success, we will submit a request for a larger trial.â
Pending approval from the Mexican authorities, researchers are ready to begin a second trial, which will evaluate the best performing lines from the first trial more closely. In response to lessons learned from the first trial, the researchers are going to use a larger plot, have more replications, and restrict walking and the resultant soil compaction in the plots.
Five years ago, many people thought it was unrealistic that a single gene could improve a complex trait such as drought tolerance. With the right approaches, including the investment in proper field trials, Pellegrineschi believes that it will be possible to produce lines containing effective transgenes within five years.
With genetic engineering, useful genes for traits of interest can be transferred across species. DNA can be directly inserted into individual plant cells. The genetically altered tissue can be regenerated into complete plants and later transferred through conventional breeding into entire lines and varieties. This approach may also applied to rapidly and efficiently transfer traits within species for either research or development purposes. In both instances, CIMMYT remains committed to generating end-products that carry only the gene(s) of interestâthat is, the undesired genes (marker genes) have been removed through conventional breeding.
Genetic engineering could increase the productivity and profitability of farming through reduced input use (lowering costs), added pest or disease resistance, and crops with better nutritional content or storage characteristics. Also, genetic engineering may solve problems that conventional breeding methods cannot. Nutritionally fortified crop varieties could be especially valuable in developing countries where millions of people suffer from dietary deficiencies.
Genetic engineering could become an important tool for introducing beneficial traits into maize and wheat. Efforts such as the DREB wheat field trail will allow our scientists to use a range of genes for the benefit of farmers and to pass on the products of cutting-edge technology to research partners in developing countries.
For more information: Alessandro Pellegrineschi or David Hoisington
More than two decades of joint efforts between researchers from Nepal and CIMMYT have helped boost the country’s maize yields 36% and those of wheat by 85%, according to a report compiled to mark the 25th anniversary of the partnership. As a result, farmers even in the country’s remote, mid hill mountain areas have more food and brighter futures.
Anywhere else, peaks above 3,000 meters would be called “mountains,” but a nation whose collective psyche has been shaped by the towering Himalayas refers to its rugged heartland as merely the “mid-hills.” Comprising deep river valleys and high ridge tops, peppered toward the north with sloping farm terraces, the mid-hills account for more than four-tenths of Nepal’s total land area. They are home to isolated villages whose inhabitants’ lives hold strongly to tradition.
One such villager is Bishnu Maya Nepali, 45 from, Belhara village of Dhankuta district. She is a farmer and a single mother of three. Maya is a “dalit,” one of the poorest castes in the Nepalâs traditional caste hierarchical system.
Up until a few years ago, Maya maintained a hardscrabble existence by planting maize, the regionâs main food crop. Like many area farmers, it wasnât enough. Her farmâwhich is roughly the size of a soccer fieldâdidnât produce enough food to feed her family.
Maya’s life began to change in 2006 when she was approached by members of the HMRP. Maya was asked to test maize varieties bred for the mid-hills by the Nepal Agriculture Research Council (NARC) with CIMMYT as one of the partners. She agreed and eventually decided to plant a type of maize, called Manakamana 3, which produced two large ears per plant and which had a shorter, sturdier stalk. To her delight, the new plant thrived. Maya’s maize harvests grew 20-50%. She also discovered the plant stayed green as it matured, providing better forage for her livestock. The project advised Maya to plant vegetables in addition to maize. These intercrops also did well, bringing Maya additional food and income. Maya grew enough food to feed her three children all year long. âNow I have enough food and can sell some surplus to pay for my childrenâs education,â she said. Maya’s additional income allowed her to put her children into school and even make modest improvements to her homestead.
Support for an agrarian way of life
Nepal is a nation of incredible diversity that depends heavily on agriculture. Of the Nepalese population, 84% live in rural areas and, during the growing season, four of every five adults of the rural population are engaged in agriculture.
In September 2010, Nepal and CIMMYT celebrated 25 years of partnership in developing and spreading improved maize and wheat varieties and cropping practices in benefit of Nepalese farmers and researchers. Given the countryâs reliance on agriculture and its financial constraints, the partnership has been invaluable. “Maya’s case is just one example of this,” says Guillermo OrtĂz-Ferrara, researcher and liaison officer for CIMMYT’s office in Nepal. The joint efforts have helped raise maize yields 36% and those of wheat by 85%, while 170 Nepali researchers have benefited from CIMMYT training and joint research or fellowships. âThe partnership that CIMMYT has maintained over the past 25 years with our research and development institutions in Nepal has been very useful and of significant value to increase maize and wheat production,â says Dr. K.K. Lal, one of the very first CIMMYT maize trainees and former Joint Secretary in the Ministry of Agriculture and Cooperatives of Nepal. âThis partnership should continue and be strengthened.â
An internal report on HMRP outcomes for 2008-10 by the Swiss Agency for Development and Cooperation showed significant improvements in food security for the more than 21,000 households taking part in the project, with particular focus on women and disadvantaged groups like dalits: the proportion of the population in the groups having food sufficiency throughout most or all of the year (first two sets of bars) grew, while the proportion of the food-insecureâthose with enough food for less than six months of the year (last set of bars)âfell.
The Hill Maize Research Program
Begun in 1999 with the cooperation of the National Maize Research Program (NMRP) of the Nepal Agriculture Research Council (NARC), the Hill Maize Research Program (HMRP) promotes the development and adoption of new technologies (improved varieties and crop management) in the hills of Nepal. Funded by the Swiss Agency for Development and Cooperation (SDC), the HMRP works with government, non-government organizations, farmers groups and cooperatives and the private sector to develop and disseminate maize technologies that benefit poor farmers in the Nepali hills. With HMRP-CIMMYT support, NMRP has developed 12 improved maize varieties for commercial production and identified more than 15 promising inbred lines, including 4 QPM lines. These 12 improved maize varieties were released by National Seed Board (NSB) of Government of Nepal. By 2009, 174 farmers groups had produced 664 tons of improved maize seed, increasing maize productivity by at least 30%. A new 2010-14 phase of the HMRP continues the focus on improving the food security and incomes of Nepal hill farm families, especially the poor and disadvantaged. Partners include the Ministry of Agriculture and Cooperatives (MoAC), the Nepal Agricultural Research Council (NARC), the Department of Agriculture (DoA), more than 26 NGOs/CBOs, and thousands of poor farmers. The new phase is jointly funded by SDC and the United States Agency for International Development (USAID).
Winning with wheat
Along with maize, the importance of wheat as a food and cash crop has grown in Nepal. As a result of high-yielding Mexican varieties introduced through CIMMYT during the mid-1960s and intensive research and development efforts by the national partners, Nepalâs wheat area has increased 7-fold, its production 14-fold, and its productivity 2-fold. Overall, yield gains from the release of new varieties in Nepal have averaged 3.5% per year since 1985, which equals or exceeds the yield gains seen in neighboring countries where the Green Revolution began.
During 1997-2008, Nepalâs National Wheat Research Program (NWRP) worked in partnership with CIMMYT, involving farmers in varietal selection and distributing regional nurseriesâsets of experimental wheat lines sent out for widespread testing and possible use in breeding programs. Two wheat varieties distributed this way, and bred by the NWRP, have been released in Bangladesh, and a significant number of other Nepali breeding lines have been used in research programs of Nepal and in eastern India.
Farming systems for a tough future
The Nepal-CIMMYT partnership has addressed important farming concerns with research and recommendations on varieties for timely and late sown conditions, appropriate weed management, balanced application of fertilizers, irrigation schedules, and resource-conserving practices such as surface seeding, zero and minimum tillage, and bed planting. The best results have included reduced costs for cropping, greater efficiency of input use, and increases of a ton or more per hectare in grain yields.
âSouth Asia will suffer particularly harsh effects from climate change, according to experts,â says Mr. Kamal Aryal, Agriculture/Climate Change Researcher, ICIMOD, Kathmandu, Nepal. âMore input-efficient cropping systems will help farmers face the challenges expected.â
For more information: Guillermo Ortiz-Ferrara, cereal breeder (g.ortiz-ferrara@cgiar.org)
In partnership with national agricultural research systems, non-government organizations, agri-business, and international centers, CIMMYT undertakes research on conservation agriculture and resource conserving technologies for wheat and maize cropping systems.
Agronomy work at CIMMYT will focus strongly on conservation agriculture principles and approaches, which improve rural incomes and livelihoods through sustainable management of agro-ecosystem productivity and diversity, while minimizing unfavorable environmental impacts.
CIMMYT will examine the potential of plant pests and diseases in such systems and look at germplasm enhancements that reduce vulnerability. Beyond a focus on higher grain production and adapted germplasm, this research will seek more efficient and sustainable use of water and other inputs, lower production costs, better management of biotic stresses, and enhanced cropping system diversity and resilience.
A daring move by a young farmer in India has changed his life and his fatherâs.
Durgesh Kumar Singh shoulders a huge responsibility. When his father became too ill to work his small farm near Varanasi in the eastern Indo-Gangetic Plains, the 24- year-old student had little choice but to take on managing both the farm and his studies. His father was always there to give advice and share his farming knowledge, so when Durgesh decided to defy his fatherâs instructions, he was taking a big risk.
A team from the CIMMYT-convened Rice Wheat Consortium (RWC) for the Indo-Gangetic Plains had visited the villagers to enlist their cooperation in a demonstration of zero-till seeding technology. The team wanted village farmers to plant some of their wheat crop without plowing the soil first. Like people living on much of the vast plain below the foothills of the Himalayan Mountains, the farmers of Durgeshâs village plant wheat in the dry season, after harvesting the rainy-season rice crop. Preparing the land takes time and labor and for every day of delay after the optimal planting time, farmers lose about 1% of their potential harvest. A ten-day advance in wheat seeding results in 10% higher harvests. Plowing means waiting until a crew with a tractor and plow is available.
When the RWC team, which included Ramesh Chand and UP Singh from Banaras Hindu University, first visited the village, people laughed. âHow can you expect the seed to germinate if you just throw it on the ground?â they joked. After two weeks of cajoling and pointing out that zero-tillage saves time, labor, and scarce water, the team convinced one farmer, Surindra Sharma Mayaran, to set aside a very small piece of his land for a trial. âIf it works, OK, and if it doesnât, OK,â he said. Even though the wheat germinated and grew, most villagers remained skeptical, especially Durgesh Singhâs father. He told Durgesh that he would die if his son tried to plant that way.
But seeing in that first trial a possibility for a brighter future, Durgesh decided to try zero-tillage for wheat on a small field that his father could not see from the house. He harvested at least as much as with the old methods, but gained something more precious. âWe now have enough time to read,â he says. âMy golden time is what I am saving.â This has not only let him continue his studies, but has reduced farm labor costs, making the family wheat crop more profitable. Now most of the villagers who were at first so skeptical are following his lead.
Even those who are nearly landless see benefits. Ram Dhari is what the village calls a âminimum landholderâ with just a tenth of a hectare. He is extremely poor. He did not have the money to rent the zero-till seeding machinery, so the rest of the village let him use it for free and Banaras Hindu University provided seed. He had watched the others and wanted to follow. âI am looking forward to the profits,â he says.
This is one of countless stories of the success of a broad range of resource-conserving technologies on smallholder farms in India. RWC work, in India funded in large measure by the United States Agency for International Development (USAID), has won praise and awards. Recently the Minister of Agriculture for India, Sharad Pawar, said the use of such technologies, especially zero-tillage, was essential to the improvement of Indian agriculture.
Durgesh Singh, Ram Dhari and Surindra Mayaran see the impact in their village every day. At first Durgesh was a laughing stock. Now his zero-till fields have produced, and produced well. The father who said he would die if is son tried out such a foolish thing as planting without plowing now asks âWhy didnât you do the whole farm this way?â
For more information contact Raj Gupta (r.gupta@cgiar.org)
Fueled by high-yielding varieties and national initiatives to promote the crop in highland areas, maize’s popularity is mounting rapidly in Ethiopia. Because farmers can get more food and income with the new varieties, they are calling out for seed. Suppliersâboth private and government supportedâare clamoring to meet the demand
“Farmers have expressed strong feelings for maize,” says a translator. A group of villagers at Sororo, Ejere District, Oromia, stand in the intense, mid-morning glare of highland Ethiopia and speak to visitors about their experiences with the improved maize varieties they had received from Demissew Abakemal, maize breeder with the Ethiopian Institute of Agricultural Research (EIAR). “It was a very dry year, and your maize is performing well,” the farmers say. “We have a surplus for food and even some for taking to the marketâsomething we’d not seen in all our lives.” They have been harvesting and piling sheaves of wheat from the bottom of the hill, but take the visitors to maize fields up near their dwellings, and proudly show the large ears of the hybrid Arganne and a nearly-as-productive open-pollinated variety (OPV), Hora.