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Meeting the Needs of the Worlds Poor through Wheat and Maize Research Around one billion people in the developing world live on less than one dollar per day (Table 1) and their numbers are growing. These are the poorest of the poor, populations living in abject poverty and under extremely high levels of food insecurity. Nearly two-thirds (62%) of those struggling to survive on less than one dollar per day live in South Asia, and another one-fifth (20%) live in Sub-Saharan Africa. Latin America accounts for 5% of the worlds absolute poor, with the vast majority living in southern Mexico and Central America.
Across the developing world, the numbers of absolute poor living in rural areas are disproportionately concentrated in the lower potential tropical production environments relative to the more favorable subtropical and temperate environments. Meeting the needs of the rural poor continues to be of predominant importance to CIMMYT, and we are also facing up to the challenge of providing for the rapidly rising numbers of urban poor. Rural poverty continues to be the overriding concern in Sub-Saharan Africa, Central America, and South Asia, but urban poverty and urban food insecurity are also escalating in South Asia. Overall economic growth and price levels (particularly food prices) influence urban poverty, whereas several additional factors influence rural poverty. Some are well known, such as rapid population growth, dwindling access to resources, and limited technological options. The effects on rural poverty of new and emerging factors, such as global climate change and the deterioration of natural resources, are less well understood, although it is clear that sustainable management of the rural resource base can significantly enhance food security and improve the livelihoods of the rural poor. Given these circumstances, how can wheat and maize research make a difference to the worlds poor? Together, CIMMYTs research and technology development help:
Research that contributes specifically to these objectives is described here; for additional detail see our project portfolio.
Improving the Livelihoods of the Rural Poor The increasingly commercial orientation of developing country agriculture, aimed at meeting the food needs of burgeoning urban populations, will go a long way towards improving the incomes and livelihoods of a significant proportion of the rural poor, especially small-scale farmers and landless households in the more favorable agricultural environments. A significant number of the poorest of the poor will not see the benefits of increased market orientation, however. These people often live in extremely marginal environments and have little access to production resources. CIMMYTs work helps these desperate households improve their access to food in a number of ways.
Stress-Tolerant Maize This year, southern and eastern African countries will release several of these new varieties. Their advantages for poor smallholders became particularly apparent during the current season, when drought strongly affected crop production in Zimbabwe and South Africa. As a result, several communities and NGOs immediately started community-based seed production, and companies began to produce seed for sale. In eastern, western, and central Africa, the Africa Maize Stress (AMS) Project also works to increase the food security and income of African farm families. Maize is grown under difficult conditions where low and declining soil fertility and insect pests significantly reduce harvests. Losses attributed to limited nitrogen in soils are estimated at around US$ 500 million annually. As an example of the severity of insect infestation, Kenyan farmers report losing 15% of their annual maize harvest to stem borers equivalent to 400,000 tons of maize valued at US$ 90 millionand farmers in some areas have cited losses as high as 45%. Among other activities, AMS Project participants develop and disseminate maize that resists drought, low nitrogen soil conditions, Striga, and stem boring insects. To identify insect-resistant maize, the project helped the Kenya Agricultural Research Institute (KARI) develop testing sites to rear and apply thousands of borer larvae each crop cycle. Maize that resists one or more borer species has been identified and is being made available to farmers. Similarly, testing sites where soil nitrogen is low are used to develop locally adapted maize that yields well despite low soil fertility. In the search for inexpensive testing techniques, root pulling strength has shown promise as a means to measure tolerance to low soil nitrogen. CIMMYT scientists also found that the ability of root tissue to conduct electric current was related to traits that affect tolerance to drought and low nitrogen. To screen maize plants for insect resistance without having to infest the plants in the field, project members have begun to use leaf toughness, a trait identified at CIMMYT. In western and central Africa, research addressed cropping patterns for stem borer control, optimum density for maize cultivation in drought prone areas, and soil fertility management using organic and inorganic fertilizers, among other things. Results showed that intercropping maize with cassava or cowpeas can reduce yield losses from stem borers. The work in insect resistance is substantially bolstered by a major project Insect Resistant Maize for Africa (IRMA) which involves an integrated pest management approach to insect management, including evaluation of Bt strategies. To ensure that farmers can observe promising maize varieties and eventually obtain seed, CIMMYT and its partners in Africa have begun widespread on-farm testing using the "mother-baby" approach, which involves complementary sets of experiments grown by researchers and farmers under both optimal and farmer management. Project plans also involve the development, testing, and dissemination of stress-tolerant varieties of quality protein maize (QPM).
Heat-Tolerant Wheat To identify wheat that tolerates heat stress, CIMMYT sows yield trials two to three months later than the optimum date, so that grain filling occurs at temperatures between 30ºC and 38ºC. "Early heat" trials are planted in early October as well, to screen for early season heat response. Researchers have established that canopy temperature depression (CTD) shows particularly high correlations with yield under hot growing conditions. Correlations in the order of 0.5-0.8 have also been noted between CTD values of entries planted in small plots and their yield in larger plots, indicating that a certain level of screening can be done on small plots before lines are entered into expensive yield trials. CIMMYT makes its best heat tolerant wheats available through two international nurseries: the High Temperature Wheat Yield Trial (HTWYT) for hot and dry environments and the Warm Areas Wheat Screening Nursery (WAWSN) for hot and humid environments.
Biotechnology to Secure Valuable
Plant Traits To accelerate progress in this potentially revolutionary area, CIMMYT and IRD entered into a research collaboration with three seed companies in 1999Pioneer Hi-Bred International, Groupe Limagrain, and Syngenta Seeds (formerly Novartis Seeds). For the seed-producing partners, enhanced knowledge of apomixis might create new options for improved seed multiplication and quality. For CIMMYT and IRD, the transfer of apomixis to maize (and other cereals) offers the long-term possibility of delivering superior crop traits to poor farmers through apomictic hybrids and varieties. Under the new agreement, CIMMYT and IRD are investigating the transfer of apomixis to cereals through a range of approaches. These include transferring genes conferring apomixis from certain species of Tripsacum (a wild relative of maize) to maize, isolating the genes controlling apomictic reproduction in Tripsacum for genetic engineering of apomictic cereals, identifying genes in maize and other species that are excellent candidates for producing the apomictic phenotype, and investigating the factors involved in controlling endosperm development in apomictic and nonapomictic species. (This last area of research is extremely important, because seed cannot mature properly without proper embryo and endosperm development.)
Farmer Participatory Research to Secure Valuable Plant
Traits For example, in South Asia over the last three wheat seasons, PVS and PPB have been used to achieve two goals: 1) to obtain farmers assessments of new improved wheats and gain an understanding of the criteria farm households use to evaluate them, and 2) to promote adoption of new varieties and site-specific resource conservation technologies, and demonstrate the value of their combined use. Thanks to the active participation of resource-poor farmers, both approaches, especially PVS, have proved effective. In two villages in Uttar Pradesh, India, farmers identified a new variety that they preferred, HUW-468, and compared it during 1999-00 with their old variety, HUW-234, under conventional planting using the normal planting date and under zero tillage using a late planting date. HUW-468 yielded 15% more than HUW-234 under both planting regimes. HUW-234 is also highly susceptible to diseases such as leaf rust. Because of the PVS activities, HUW-234 may be replaced soon, diversifying the spectrum of varieties grown in farmers fields. In Nepal, women and men farmers engaging in PVS preferred the recently released variety BL-1473 because of its early maturity, lodging tolerance, and bold, white grain. Based on these results, the Nepal Agricultural Research Council (NARC) will speed multiplication of BL-1473 seed. In the northern hills of Pakistan, the top three varieties identified by farmers in Sultanabad, Gilgit District, yielded 30-40% more than Suneen, the popular local variety. These varieties will be multiplied more extensively in 2000-01 to obtain enough seed to distribute to as many farmers as possible.
Providing Technology Where It Is
Most
Needed
Improving Nutritional Security of the Poorest of the Poor The diets of the rural and the urban poor tend to be deficient not only in calories but also in protein quantity and quality (i.e., amino acid balance), vitamins, and micronutrients. Women and children, who make up the vast majority of people living in poverty, usually suffer most from these deficiencies. Nutritionally fortified maize and wheat being developed at CIMMYT could make an enormous difference in nutritional security for poor rural and urban households. This research relies on the complementary tools of conventional breeding and biotechnology, as well as information from nutritional and socioeconomic studies, to ensure that the most appropriate varieties are developed.
Maize for Nutritional Security Aside from improving the protein quality of maize, researchers have examined ways of increasing its micronutrient content in an intercenter project coordinated by the International Food Policy Research Institute (IFPRI), "Identifying Agricultural Strategies for Reducing Micronutrient Malnutrition." Initially CIMMYTs research on improving micronutrient levels in maize has been directed towards southern and eastern Africa, where white-grained maize is the major staple food and deficiencies of micronutrients and vitamin A are often acute. Researchers systematically evaluated nearly 2,000 maize varieties and landraces, representing the entire genetic base of white-grained tropical maize, to identify maize with higher iron and zinc concentrations. This undertaking was not as straightforward as one might think, partly because the environment in which a variety is tested greatly influences the concentration of micronutrients in maize kernels and partly because high micronutrient varieties often show lower yields. After considerable preliminary work, researchers developed experimental hybrids that could meet an additional 30%, 20%, and 10% of the daily iron demand of men, women, and pregnant women, respectively, without compromising yield, and they are exploring strategies to further boost nutritional value. The challenge in developing maize with higher vitamin A content for southern Africa is to disguise its yellow grain color. Most maize consumers in the region strongly reject yellow maize for cultural and historical reasons. Researchers are investigating targeted incorporation of vitamin A in the embryo or disguising yellow grain color with other pigments, such as anthocyanins.
Wheat for Nutritional Security
Improved Nutrition and Bioengineering
Enhancing Urban Food Supplies A key strategy for enhancing urban food supplies is to increase the competitiveness and profitability of wheat and maize production at the farm level. Dramatic reductions in the cost per ton of food crop production contribute substantially towards increasing and/or sustaining the profitability of wheat and maize production. The cost per ton of crop production can be reduced by a combined approach involving a shift in the yield frontier and an increase in the efficiency of input use. CIMMYTs efforts to shift the yield frontier of wheat, particularly in irrigated and high rainfall environments, along with its work on improved disease resistance, nitrogen- and water-use efficiency, and zero tillage, are all directed at reducing the unit costs of wheat production, raising its profitability, and increasing surpluses at the farm level. Particularly noteworthy is our collaborative work on enhancing the productivity and the sustainability of the rice-wheat systems in the Indo-Gangetic Plains, a major source of food for South Asias urban poor. In the case of maize, the development and promotion of high-yielding hybrids, particularly in Latin America and in Africa, contributes to increased food supplies for the urban poor.
Water-Use Efficiency in Wheat
Nitrogen-Use Efficiency in Wheat
Conserving the Resource Base for Current and Future Food Security Especially in marginal environments, enhanced food security and improved livelihoods for very poor households are closely linked to management of the agricultural resource base. CIMMYTs research addresses immediate concerns in resource management, such as soil and water conservation, and longer-term concerns, such as climate change. In recent years, CIMMYT has actively promoted research on conservation tillage practices for wheat and maize production systems across the developing world. This emphasis is reflected in the launching of a new global project (Project 9: G9) that focuses on the development and dissemination of conservation agriculture practices, especially zero tillage, and incorporates a knowledge management component. A smaller, related project (F7) was closed in 2000; this frontier project had focused on methods and knowledge management for the development and dissemination of sustainable systems. This change was made for several reasons. First, conservation agriculture and conservation tillage are specific themes that tie together much of CIMMYTs systems research in Asia, Africa, and Latin America. Second, research on conservation agriculture is critically important and is likely to remain so over the longer term. Finally, compared to the project that was closed, the new global project will have the stature, level of resourcing, and permanence commensurate with its importance to CIMMYTs mission. The Rice-Wheat Consortium of the Indo-Gangetic Plains, for which CIMMYT is the convening CGIAR center, has been instrumental in developing improved tillage technologies that are being adopted rapidly throughout South Asia (see "Do Not Disturb the Earth"). Mulching and residue retention techniques are being promoted in smallholder wheat production systems in the Bolivian highlands. Conservation tillage has also made significant progress in subsistence maize production systems in the hillsides of Central America. This work by CIMMYT and its partners has confirmed once again that poor farmers, with access to proper techniques and knowledge, manage their resources as adeptly as more well-to- do farmers. CIMMYT is strongly concerned about the future impacts and implications of climate change. Global warming could significantly increase the area under drought and high temperature stress, thereby affecting maize and wheat productivity in many areas. The good news is that the research agenda that CIMMYT is pursuing today for managing climatic stress will provide maize and wheat technologies that will help farmers adapt to climate change and mitigate its effects (see "Changing Technology for a Changing Climate"). Our work on developing drought- and high temperature-tolerant maize and wheat is a particularly important case in point. The area where stress-tolerant germplasm is needed will increase significantly over time. Similarly, the area that will benefit from our work on conservation tillage and water management will increase over time. Large-scale adoption of conservation tillage practices could help alleviate the effects of climate change through reduced emissions of greenhouse gases and reduced losses of soil carbon.
Conclusions: Research Resources to Reach the Poor These highlights of our research indicate CIMMYTs commitment to providing strategies that will enable poor people to overcome poverty and malnutrition and to cope better with climate change, economic uncertainty, and other forces that threaten to divide rather than unite the peoples of the world. The projects described in the pages that follow present a research agenda that is ambitious but necessary to accomplishing this mission. The geographic allocation of CIMMYTs research resources (Table 2) is consistent with the regional distribution of the worlds poor. More than one-third of our resources are spent in Sub-Saharan Africa, the region with the highest share of poor people in its population (Table 1) and lowest share of trained scientists and research infrastructure. South Asia accounts for 22% of CIMMYTs resources, and Central America, with the third highest share of the global poor, accounts for 15%.
Financial Highlights
2000 Operating Budget Additional resources in 2000 came from a combination of targeted funds, core restricted contributions from the European Commission (EC) and the Netherlands, and core special projects supported by the Rockefeller Foundation and other foundations. This increase in targeted contributions reflects several circumstances, both within and outside CIMMYT. First, our research portfolio continues to be highly relevant to the priorities of those who have traditionally supported international agricultural research. As we have shown in this Medium-Term Plan, our research products will help address some of the most serious development concerns that have emerged in recent years, such as the effects of climate change. Second, throughout the nonprofit research sector, there is growing impetus and scope to support research with nontraditional sources of income. CIMMYT is developing an increasing number of highly focused partnerships with nontraditional supporters to address high-priority challenges for maize and wheat research. Nontraditional sources of funding accounted for approximately 17% of CIMMYTs budget in 2000, including new resources from foundations and from advanced research institutes in the public and private sector. CIMMYT enters into such alliances only if they enhance our ability to achieve our mandate of service to the resource-poor and the environment. We are extremely cognizant of the debate over the potential of the private sector to distort the research agenda of the public sector, a debate that is perhaps most vigorous in academia but is nevertheless extremely relevant for international centers such as CIMMYT. At CIMMYT, if an alliance helps us to more quickly develop new, appropriate technologies and deliver them to farmers fields in developing countries, we regard it as a "win-win" alliance in which we can participate. 2 Third, the private sector and civil society as a whole have demonstrated a growing awareness of the need for private organizations to assume a greater share of responsibility for such development goals as human and ecological health. This awareness is likely to expand the opportunities for private and public research alliances oriented toward humanitarian goals.
2 A new publication, Global Public Goods for Poor Farmers: Myth or Reality? (Mexico, D.F.: CIMMYT, 2001) highlights CIMMYTs approach to the development of global public goods.
2001 Estimated Budget Our budget estimate for 2001 is US$ 38.2 million, as projected in the September 2000 review of the financing plan for the 2001 research agenda. For 2001 we are forecasting that core unrestricted contributions will be at the same level as in 2000. Additional support through targeted funds will allow us to increase our emphasis on improving drought tolerance in maize and wheat though functional genomics and other approaches, to expand research in participatory plant breeding, to reinforce our efforts to further develop and disseminate QPM, particularly in Sub-Saharan Africa, and to strengthen our training initiatives.
Projected Trends over
the Planning Period Given current trends, targeted funding is likely to constitute a growing share of research resources. We anticipate that more than 60% of Center income will be targeted in one form or another during 2001. Approximately half of CIMMYTs expenses are in Mexican pesos, and the peso continues to perform strongly against the US dollar (over 2000, the Mexican peso appreciated by about 8.5% in real terms). Inflation was 8.9% in Mexico during 2000 and is projected to decline to about 7.0% in 2001. During the remainder of the planning period, the Mexican government projects inflation to fall by a further 3-4%. Total expenses for salaries and allowances are targeted to remain below 60% of the total budget, as mandated by Center policy. Other operating costs are projected to remain consistent with long-term trends. The most recent audited figures, including full project costing, indicate that indirect costs, as currently defined, are 26.5%. Full recovery of these costs from targeted contributions remains a critical component of our financial structure, helping to ensure the delivery of high-quality research products. Although we have been able to improve the rate of overhead recovery from previous years, we are still below the level of 20% (on average).
Center Staffing On the research side, a Postdoctoral Fellow will join our Applied Biotechnology Program to work on cereal functional genomics, funded by special projects. In addition, several new Postdoctoral Fellows will join the Maize, Wheat, and Economics Programs. We also plan to recruit two specialists in modeling and farmer experimentation to reinforce our Natural Resources Program in southern Africa and at headquarters in Mexico. We anticipate that the number of adjunct staff (researchers working at CIMMYT on fixed-term projects or by agreement with other institutions) will grow as CIMMYT continues to expand its range of partnerships and access to complementary expertise in advanced research institutes. The number of nationally recruited staff declined very slightly over 2000 and is projected to remain steady during the planning period.
Financial Indicators and
Capital Investments We continue to identify strategies for increasing the flexibility in our capital budget. The Centers capital leasing program continued in 2000 for computer equipment, vehicles, and some field equipment. In 2001, an internally administered cost recovery system for the vehicle fleet (more than 300 vehicles), one of our major capital expenditures, takes effect. Under this new system, an annual capital purchase levy is charged on each vehicle to create a vehicle-purchasing fund. Vehicle operating costs may thus be funded from a range of sources and not solely from our capital budget. Our most important capital investment in 2000 was the acquisition of 50 hectares in Puebla for a lowland tropical maize research station to replace the Poza Rica Experiment Station, which was severely damaged by flooding in October 1999. We are preparing the site (leveling the land, installing irrigation and drainage systems) and seeking additional resources to build the administrative office, training facilities, and other essential infrastructure. These resources will complement the generous support received from the CGIAR Finance Committee and the Australian Centre for International Agricultural Research (ACIAR). Published on May 2001
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