| Imagine living on a
postage-stamp farm where you grow beans or cassava just to survive. In good years you sell
a small surplus to a flighty local market. In bad years you not only go hungry but also
cant pay for new shoes or your childs school fees. Such is the predicament of
many small farmers throughout the tropics.
But they are not all doomed to abject semisubsistence. Todays global
economy influences all markets, from local to international, presenting small producers
with both threats and opportunities. The challenge is to help these farmers connect with
markets by intensifying and stabilizing their production, adding value to traditional
crops, diversifying into new enterprises, and analyzing market opportunities. In addition
to improving the well-being of rural people, these actions could provide them the means to
invest in a greener agriculture. The following pages present examples of CIATs
collaborative efforts to link farmers with markets, including impact assessments of past
interventions.
Preserving the cash potential of beans
For many small farmers, the first step toward better market links begins with higher,
more stable production of staple foods for which there is growing demand among consumers.
And the most cost-effective way for farmers to achieve this end is through improved crop
varieties. By intensifying production, new varieties better enable poor farmers to feed
their families, produce a surplus of quality food for the market, and perhaps even free up
space for cultivation of other cash commodities. Moreover, by providing resistance to
diseases and other stresses, new varieties can remove some of the uncertainty from
farmers production, making the market orientation more manageable.
Few cases in CIATs history illustrate more vividly the impact potential of
gene-based technology than the story of the bean golden mosaic virus (BGMV). Transmitted
by whiteflies, BGMV disease turns leaves a brilliant yellow and distorts pods, resulting
in undersized bean seeds. Rapid spread of the virus in Central America and Mexico,
starting in the 1970s, was a devastating blow to bean farmers, particularly small
producers.
To fully appreciate the threat to human livelihoods posed by BGMV, its important
to understand the central role beans play in the regions economies and peoples
diets. When it comes to basic grains, beans are second only to maize in the area planted
in Central America and are the number one source of farm income. Moreover, beans continue
to be the "meat of the poor," providing roughly double the protein found in most
cereals.
CIAT and its partner organizations responded quickly to the BGMV crisis by developing
new virus-resistant varieties for Mesoamerica, beginning in the late 1970s. By 1996 about
40 percent of Central Americas bean area was planted to the improved varieties. In
some badly hit areas, adoption has been double that. In Honduras, where the virus struck
relatively late, the first BGMV-resistant variety, Dorado, was released in 1990, and
several others soon followed.
Conventional economic analysis carried out by CIAT indicated that by 1998 the
cumulative value of increased production from the new varieties was more than US$200
million (in 1990 dollars) for Central America. This far surpasses the costs of associated
bean breeding research over the years. However, based on a more recent multidisciplinary
study of impact in Honduras, CIAT agricultural economist Nancy Johnson believes this
figure grossly underestimates the germplasms true positive impact.

Teasing out the value of disease resistance
When economists measure new germplasms impact, differences in crop yields between
traditional and improved varieties, as recorded in farmers fields, often serve as
their starting point. Economists also need to know the surface area planted to the
different varieties each year as well as market prices. They can then calculate the
cumulative monetary value of the extra production by farmers who plant the new varieties.
Its a straightforward way to value the direct flow of benefits into producers
pockets and national economies due to production gains.
But when the main selling point of new varieties is disease resistance rather than
higher yield, this type of analysis falters. It cannot capture a significant
benefitthe value of production losses that farmers avoid by adopting the new
varieties. As Johnson explains, "the appropriate comparison in these cases is between
the observed yields of improved varieties and the yields we would have observed with
traditional varieties under similar circumstances in the absence of improved
varieties." Unfortunately farm-level data for the latter scenario, the so-called
"counterfactual," simply do not exist.
A way around this problem, says Johnson, is to simulate the counterfactual. She and
CIAT colleagues have developed a method for doing this, which they applied in a 1999 study
of the impact of disease-resistant bean varieties in Honduras. While the technique teases
out the value of loss avoidance, it also looks at the issue of equityhow poor
producers benefit.
To factor in the probable effects of the virus on production, Johnson and her
colleagues drew on a CIAT-developed computer tool that predicts the distribution of
organisms in the wild. Called FloraMap, the tool is based on the assumption that the
climate of those locations where an organism like BGMV has been collected in the past is a
good indicator of the range of habitats in which it can survive or thrive.
FloraMap helped the researchers project the spatial distribution of BGMV incidence in
bean-producing areas of Honduras. This information was then combined with yield data and
actual bean prices for the traditional and resistant varieties. Researchers were thus able
to estimate and compare the value of production under two scenarioswith improved
varieties and without.
The simulation was applied to two bean-growing areas of Honduras. The results were
dramatic. For virus-related crop damage of 90 percent, the average yield of traditional
and resistant varieties combined was estimated to be nearly 60 percent higher than the
yield farmers would have gotten had they planted only traditional, nonresistant varieties.
With more conventional economic analysis, in which resistant and traditional variety
yields are directly compared based on farm-level production data, the yield advantage of
resistant varieties would show up as only 5 percent. Near the other end of the
viral-incidence spectrum, when crop damage is only 25 percent, the two methods are almost
in agreement. The conclusion is that, when viral incidence is moderate or high, the real
economic benefits to farmers of planting resistant varieties can be substantially greater
than what conventional analysis might indicate.
Going a step further, Johnson and colleagues exploited other CIAT work that mapped
poverty levels in Honduras. Using a geographic information system, Johnson overlaid a
poverty map of Honduras, a national bean production map, and a map of predicted viral
incidence generated by FloraMap (which serves as an indicator of where farmers are more
likely to adopt disease-resistant varieties). The overlaps between the data sets suggested
that 40 percent of the total economic benefits from new varieties accrue to areas of
significant poverty.
Biotechnology: A shortcut to impact
In Central America the benefits of BGMV-resistant bean germplasm have clearly been
enormous, by any economic measure. The fight, however, is far from over. Recent CIAT
mapping of geminivirus outbreaks in tomatoes, using GIS techniques, clearly traces an
alarming, widespread pattern of whitefly penetration in Latin America and the Caribbean
over the past 25 years. The main culprit is Bemisia tabaci, the same whitefly species that
transmits BGMV to beans and other geminiviruses to vegetable crops like peppers, melons,
squash, cabbage, eggplant, and broccoli. Whitefly outbreaks are increasingly common in
other regions of the world too, posing a major threat to farmers income from
commodity markets.
The global whitefly menace is thought to be one of the gravest problems in tropical
agriculture today. It is one reason why CIAT is now actively using biotechnology to
develop genetic resistance to geminiviruses spread by the whitefly vector. This work is
linked to the Whitefly IPM Project, a global initiative coordinated by CIAT and sponsored
by the Consultative Group on International Agricultural Research (CGIAR).
In the case of BGMV, a major source of plant resistance is the recessive gene known as
bgm-1, which comes from a Mexican landrace of common bean. In 1996 the US Department of
Agriculture (USDA) identified a molecular marker associated with the genein this
instance a RAPD. CIAT scientists then converted this to a more useful type of marker
called a SCAR. These have the advantage of highly stable expression and are thus more
efficient than RAPDs in marker-assisted plant breeding.
The results of our 1999 molecular marking and selection work are highly encouraging.
CIATs biotechnology lab screened 8,000 young bean plants for the bgm-1 SCAR and
presented breeders with the results of each batch just a little over a month after
planting. To make their crosses in the second phase, the breeders used only plants bearing
the marker. The experiments prove not only the effectiveness of the SCAR-based strategy
for selecting BGMV-resistant beans but also its efficiency. In conventional breeding, a
large number of plants have to be grown to maturity and then physically examined to see
which ones show signs of resistance. The research team found the marker-assisted approach
cut breeding time and effort by about 60 percent.
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Kenyas not-so-common beans
Besides being a major source of dietary protein, common beans are a major cash earner
for small farmers in Africa. About
40 percent of the continents bean harvest, mainly dried beans, is marketed,
generating US$226 million a year at the farm gate. The retail value is about double that.
Unfortunately, the road to a dynamic bean-marketing system in Africa is a rocky one,
literally and figuratively. Getting beans to market means travelling long distances over
rough roads and tracks. "If Im a middleman, I wont go into the interior
because if it rains I wont get my truck out," explains says John Ojiem of the
Kenya Agricultural Research Institute (KARI), who is also a site coordinator for the
CGIARs African Highlands Initiative, which is convened by the International Centre
for Research in Agroforestry (ICRAF). Other key problems are storage losses due to
weathering and pests and inefficient farm-level buying and retailing.
Even so, demand for beans continues to surge, as the regions urban areas expand,
and successful bean marketing and income generation will ultimately depend on
farmers ability to grow surpluses. For that reason research has so far concentrated
on increasing production, especially through better germplasm that raises yields and
offers farmers an incentive to invest in maintaining soil fertility. The case of Kenya, a
traditional bean producer and Africas largest consumer of the crop, illustrates both
the challenges and potential for progress.
Bean yields in the countrys western region plummeted to crisis levels in 1993.
The following year, 70 percent of farmers abandoned bush beans altogether during the long
rains (March to August). Researchers found multiple causes of the problemwidespread
root rots, declining soil fertility, and infestation by bean stem maggots. They then
introduced farmers to root rotresistant bush and climbing beans as well as soil
improvement methods, such as the use of green manures that help the crop resist root rots.
In 1996 all farmers who had received seed for testing were growing at least three
varieties. The gross economic benefit of Kenyas 1999 production gains from the new
bean varieties has been estimated at US$5.4 million (1990 dollars).
Opiayo Morrison is among 300 farmers in Emuhaya District of western Kenya who are now
experimenting with the new varieties and soil-improvement techniques. "In the
past," says Morrison," you couldnt get enough food, especially beans. Now
I can easily sell 2 kilograms for 200 shillings" (or about US$3). Neighbor Joash
Mukora tells a similar story. "After selling beans I can buy school uniforms for my
two children and notebooks for school."
The climbers have been a welcome novelty in Kenya. Per unit area, they yield three
times more than bush beans, and they resist root rot. They are of Mexican origin but were
further developed by CIAT and collaborating scientists and farmers in Rwanda, where they
helped as much as half of the countrys population make better use of scarce land and
boost their incomes. The climbing beans have since spread not only to several areas of
Kenya but also to Tanzania, Zambia, and other countries. A 1998 study in central Kenya
found that 1,700 farmers were already growing these varieties and selling the seed to
neighbors at premium prices.
Kenyan farmer Rhoda Inganza is a good example of how small producers are accelerating
adoption of the new bean varieties. Having started with a small seed sample provided in
1994 by KARI bean breeder Reuben Otsyula, she is now a major local source of seed for
other farmers. She has also been trained under the African Highlands Initiative to teach
seed production methods. "Only yesterday I gave some seed away to four farmers, who
in turn gave some to others," Inganza recently told visitors to her farm. "I
know theyre able to reach a large number of people."
CIAT and its research partners in Africa recognize the need to link farmers to markets.
In a recent review of the Pan-Africa Bean Research Alliances work, bean breeder Paul
Kimani of the University of Nairobi identified various new food items now on the
marketbean-based samosas, bean-and-tomato paste, and frozen snap beans, for example.
"These products offer new outlets for bean producers and hopefully stable prices and
production contracts. This is an area that deserves more attention. Linkages with private
companies are critical in creating new markets and value-added products."

Building farmers assets in Southeast Asia
In many parts of the tropics, livestock are small farmers best bet for building
assets and strengthening their toehold in markets. In upland areas of Southeast Asia, for
example, livestock already provide more than 50 percent of farmers cash income as
well as draught power.
Recent experience in Latin America has shown that improved tropical forages are an
effective way to intensify market-oriented, small-scale livestock production. Now, a
5-year participatory R&D project led by CIAT has demonstrated their enormous potential
for improving family welfare in the uplands of Southeast Asia. At least 1,400 mostly poor
farm families in four countries of the region are now growing one or more forages,
carefully selected from an array of 26 legume and grass species, to feed their livestock.
The resulting shift in farming practices cuts family labor requirements, makes manure
more readily available to fertilize crops, and boosts animal health and weight gains,
enabling farmers to get livestock to market more quickly. Environmental pressure on the
land from grazing is also reduced, and some of the new forage options help prevent soil
erosion.
Growing grass and legume crops is a welcome change for farmers in the dozens of
communities that took part in the project at 19 sites in Indonesia, Laos, the Philippines,
and Vietnam. They cultivate forages mostly on small "cut-and-carry" plots close
to the farmhouse or fields, making it more convenient to feed cattle, buffaloes, sheep,
goats, and other livestock. At some of the more advanced experimental sites, forages are
also grown as contour hedgerows or as living fences along field boundaries.
In the past men, women, and even children spent many hours a day herding their animals.
The search for scarce sources of natural vegetation for grazing required traveling many
kilometers from home on foot or bicycle. While the new forage systems developed under the
Forages for Smallholders Project (FSP) dont entirely replace traditional grazing
methods, they do introduce flexibility, convenience, and a measure of security into
livestock rearing. Farmers conducting the on-farm experiments report that introducing
forages has made for healthier and faster-growing animals.
The 5-year, US$3 million project, completed at the end of 1999, was a massive
collaboration between farmers, local development professionals, and staff from CIAT and
the Commonwealth Scientific and Industrial Research Organisation of Australia (CSIRO). The
lions share of funding came from the Australian Agency for International Development
(AusAid). Contributions were also made by participating country governments and the
Australian Centre for International Agricultural Research (ACIAR).
FSP managers ascribe the projects successan adoption level nearly double
their original targetto the presence of several distinct but interlocking
ingredients of technology development. These are farmer participation, suitable forage
varieties, local seed production and vegetative multiplication, technical expertise, and
the creation of strong partnerships at the provincial and district levels.
Linking these elements together is a large training component, complete with printed
materials, translated into multiple languages, on topics like participatory research
methods, forage cultivation, and seed production. One key result has been the formation of
a nucleus of national trainers who can instruct others in problem diagnosis and methods of
farmer evaluation of improved forages. So far, these "graduates" have themselves
trained 813 local staff in five countries.
The processes set in motion by this projectdevelopment of forage solutions on
small farms and construction of a network of field workers skilled in participatory
approachesare gaining momentum. To build on early successes, the Asian Development
Bank has provided CIAT with funds for continued work with smallholders in six countries.
In addition, with substantial support from AusAid, the Center is undertaking a new 5-year
project on forages and livestock systems in Laos.
As this work moves ahead, so will efforts to gauge its impact. With funding from ACIAR,
researchers at CIAT and the University of Queensland recently developed a practical
framework for monitoring and evaluation, using two FSP research sites as test cases. This
framework is now being used to help bridge the knowledge gap between project outcomes as
documented by researchers and their wider impact on the well-being of poor upland farmers,
as the farmers see it.

New markets for cassava
A further option for connecting farmers with markets involves finding alternative uses
and markets for not-so-fancy staple foods. Cassava, for instance, can be turned into
starch for the food processing industry or dried and chipped for animal feed, in addition
to being sold as fresh roots for human consumption.
CIATs first large-scale effort to pursue this avenue of market-oriented
development with poor farmers began in 1981. The Integrated Cassava Research and
Development (ICRD) projectconducted jointly by CIAT and the Colombian
governments Integrated Rural Development (DRI) Programintroduced new
processing technology, an organizational model, and support services to farmers on
Colombias North Coast.
Compared with other parts of Colombia, the North Coast is quite poor. At the beginning
of the 1980s, the basic needs of about three-quarters of its inhabitants were judged
"unsatisfied," and more than half the population was living in absolute poverty.
Cassava was, and still is, critical to their survival. Its one of the few crops that
grows well in this semiarid region, giving farmers a small measure of food security.
The ICRD projects hypothesis was that linking farmers to the animal feed market
via cassava-drying agroenterprises would create a cascade of favorable events. It would
set a price floor for fresh cassava and smooth price fluctuations, thus reducing economic
risk and giving small farmers more bargaining power. As a result, cassava production would
rise, initially through a larger planted area and eventually through adoption of better
cassava germplasm. This, in turn, would create jobs, boost family incomes, foster social
organization and community development, and reduce poverty.
The ICRD project, which officially ran until 1989, targeted small landholders and
tenant farmers. It had three key phases, followed by a winding-down period during which
institutional support declined and then ended in 1993. The research component, provided by
CIAT and the Colombian Institute for Agricultural Research (ICA), was funded by the
Canadian International Development Agency (CIDA).
By the time CIAT ended its research support, a total of 138 drying plants were in
operation, most of them run by small-farmer cooperatives. Annual output had reached 35,000
tons, valued at US$6.2 million. About one-third of small-scale cassava farmers were
selling to the dried-cassava agroindustry, and 15 percent belonged to a cooperative.
Then, the picture changed drastically. The Colombian government decided to open up its
economy to international competition and to reduce its intervention in agriculture. As
cheap imports of grain for animal feed became available, prices of dried and fresh cassava
tumbled, bringing the cassava drying industrys profit margin to almost zero. At the
same time, government agricultural credit dried up. More than one-quarter of the drying
plants had to shut down. Making matters worse, a wave of violence disrupted local farming
communities, forcing eight cassava cooperatives to disband. By 1994 cassava production had
dropped to 7,000 tonsa mere 20 percent of the previous years production.
Despite the political and economic shocks, 56 drying plants were still operating in
1999, when CIAT staff returned to the region to conduct an impact study of the ICRD
project. Moreover, dry-cassava production had picked up once again, as a result of the
recent devaluation of local currency, which made imported grain more expensive.
The impact analysis, led by CIAT agricultural economist Verónica Gottret, showed that
the ICRD project did alleviate poverty in the target communities but indirectly. In
effect, the emergence of cassava-drying cooperatives created a favorable economic and
technological environment for poor farmers to expand the planted area and adopt modern
varieties that yield better. This, in turn, boosted incomes.
The reduction of poverty is seen in two census-based indicators: unsatisfied basic
needs and level of absolute poverty. The greater the proportion of cassava area planted to
modern varieties in a given municipality, the greater the reduction in poverty. For
example, a
10 percent increase in the cassava area under modern varieties reduced the proportion of
households living in absolute poverty by 1.2 percent.
The study thus found the direct economic benefits of the cassava-drying enterprises to
be small, about US$1.6 million for the 1984-91 period. However, the overall economic
surplusthat is, from both cassava drying and enhanced production linked to adoption
of new varietieswas estimated at US$18.6 million.
Gottret found that farmer cooperatives tended to emerge in communities with a low
average farm size but where human and social capital (such as education, institutional
support, and community organization) had already been developed to some extent.
Conversely, she also found that the creation of cooperative cassava-drying agroenterprises
through the ICRD project further stimulated social capital development.
"The project built local capacity to market crops and identify other economic
opportunities," says Gottret. In communities that formed cassava-drying cooperatives,
"people came together, organized themselves, and got into other enterprises, such as
small shops that sell food and veterinary products."
Interviews with farmers confirmed the positive impact of the ICRD project, especially
by providing more food, creating jobs, and stabilizing farmers incomes.
"Before, we didnt eat three meals per day," says Don Carlos, a cassava
farmer and member of a cooperative in Sucre. "If we had breakfast, we didnt
have lunch. Things have improved. Now we have money to send the children to school and to
buy shoes and socks. And we have enough to eat three meals too."

Prospecting for markets
Though staple crops still offer much market potential, farmers in the tropics clearly
need to seize other opportunities as well. Fortunately for them, the developing world has
something that industrialized nations cravea wealth of tropical crops, especially
exotic fruits, vegetables, flowers, herbs, spices, and aromatic and medicinal plants. In
many of these countries, the popularity of specialty foods is on the rise, creating
profitable niche markets. For example, in the USA and Europe, annual market growth for
organically grown fruits, vegetables, and other products is estimated at more than 20
percent. Just as important, there is significant demand for some of these in the producer
countries themselves.
"But traditional economic development models have had a bias toward the urban
sector," says CIAT marketing specialist Carlos Ostertag. As a result, the needs of
poor rural producers have often been ignored. At the same time, he says, rural development
projects have typically lacked a business orientation. Theyve tended to concentrate
on marketing what was already being produced, mainly traditional food staples, instead of
prospecting for new products and processes to respond to consumer needs.
For several years, Ostertag and colleagues have been perfecting a way to help farmers
maneuver out of that supply-driven economic backwater. Their efforts have led to a
step-by-step method for identifying and assessing new market opportunities. "This
tool for decision making is filling a vacuum," he says. "But we dont have
a utopian perspective. We dont expect farmers to develop highly sophisticated
projects. Were very careful about suggesting radical changes, because most farmers
are poor and, for them, change means risk."
The real aim, says the researcher, is to get small producers to adopt a market approach
and move in the direction of adding value to current and alternative products. For
example, in Colombias coffee zone farmers are being organized by producer
associations, NGOs, and even a large fruit processing company to grow blackberries in
addition to coffee and staples. While the farmers do not themselves produce the final
fruit juice products, they add value to their harvest and sell it to industry. The fruit
fetches a higher price than traditional crops like beans and makes farmers less
economically dependent on such staples.
The market-assessment method is packaged as a training module, one of nine CIAT
decision-support tools for natural resource management. A recurring exercise in the method
is participatory analysis of how new production and marketing opportunities can conserve
or improve natural resources. The rationale is that environmentally friendly production
and processing are pillars of economically sustainable agroenterprises.
The tools main target audience is public and NGO professionals working in rural
development and natural resource management. A secondary audience is university and
college educators of such agents. While those trained in the method are intended to
coordinate the actual market assessment, farmers make the key investment and production
decisions. But the method is not designed to assist individual farmers who want to test
the market feasibility of a specific new business idea. Rather, it is intended to help all
small producers in a defined microregion.
CIAT designed the market assessment decision tool based mainly on its work with farmers
in Colombias southwestern Cauca Department. However, the tool has since been applied
in Honduras, Peru, and in the Colombian savannas. Besides those three countries, national
staff have been trained (to serve as trainers themselves) in Ecuador, Kenya, and
Nicaragua.
In Perus Pucallpa region, farmers used the CIAT method to opt for production of
cocona, a tropical fruit that can be pressed into juice or used to flavor ice cream. Good
market demand and the fruits short production cycle were among the motivating
factors.
It makes little sense to concentrate on just a few staple crops when tropical countries
have so much biodiversity, concludes Ostertag. In order for international research to
increase its impact, "we must complement the traditional focus on major commodities
by looking at multiple options. What weve created is a tool that helps decide which
opportunities are priorities."

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