The semi-arid tropics region is characterised by highly variable, low-to-medium rainfall and poor soils, further characterised by lack of irrigation. In general, the historical average annual rainfall in the SAT is below 700 mm. In agricultural policy terms, this region is considered to be a less favored area.
Research strategy
ICRISAT adopts Integrated genetic and natural resources management as its overarching research strategy. The aim is to combine tested methods of crop commodity research with well established practices in research in natural resources management. The original goal was to use crop improvement research as the basis to improve food availability in drought-prone areas of the tropics. In the last ten years, ICRISAT research, especially in India, China, the Philippines and Vietnam, has tended to emphasise creation and sustenance of rural livelihoods in addition to releasing crop varieties that yield better. ICRISAT founded the in 2013 with the Vision to create a world where food is ‘Smart’ – good for you, the planet and the farmer. A key objective is to diversify staples across Africa and Asia, with the initial focus on millets and sorghum. The Smart Food initiative is now led globally by , , and .
ICRISAT conducts its research under four themes: Agro-ecosystems development, Harnessing plant biotechnology and bioinformatics, Crop improvement and management, and Institutions, Markets, policy and Impacts. The ICRISAT Genebank serves as a repository for the collection of germplasm of the six mandate crops – sorghum, pearl millet, finger millet, chickpea, pigeonpea and groundnut; and five small millets – foxtail millet, little millet, kodo millet, proso millet and barnyard millet. The collection has over 119,700 germplasm accessions assembled from 144 countries. Several landraces now conserved in the ICRISAT genebank have disappeared from their natural habitats in Africa and Asia.
Crop improvement research
Most of ICRISAT’s crop improvement research is directed at LFAs. At an aggregate level, there is evidence from India that crop improvement research is having favorable productivity and poverty impacts in many LFAs. Based on an econometric analysis of time-series data for three different types of agricultural areas, non-ICRISAT experts found more favorable marginal returns for crop improvement research in low-potential rainfed areas than in either high-potential rainfed areas or irrigated areas. Moreover, additional crop research investment in low potential rainfed areas lifts more people out of poverty than in the other two types of areas. They found that ICRISAT-improved chickpea varieties have been widely adopted in a poor tribal area in Gujarat, India, with favorable impacts on yields, unit production costs, and net returns per hectare. ICRISAT’s package of improved groundnut varieties grown in combination with improved agronomy practices has had a positive result in the semi-arid tropical areas of Central India. Two major science-based breakthroughs attributed to crop improvement research at ICRISAT relate to Pearl Millet and Pigeonpea. A team of researchers at ICRISAT have released the first public sector-bred marker-assisted hybrid pearl millet, HHB 67. This was released in India in 2006. It is assessed to have superior agronomic performance and improved tolerance to terminal drought. The first-ever release of a hybrid pigeonpea by ICRISAT researchers has been reported in 2008
Information products and services
ICRISAT formally adopted an open-access policy for its research publications in 2009. It is among a small number of agricultural research organisations to do so. As of June 2010, about 3000 publications are available on the organisation's website.
