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dc:title "HTML Summary of #1065 \n\nAssessment of the Economic Impact of Sorghum Variety S 35 in Chad\n\n";
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bibo:abstract "The S 35 sorghum variety is a nonphotoperiod-sensitive, high-yielding, ear ly-matur ing, and drought -\r\ntolerant pure line that originated from ICRISAT' s breeding program in India, and was later advanced\r\nand promoted in Cameroon and Chad. Its int roduct ion into drought -prone areas of Chad has been\r\nvery successful wi t h a net present value of research investments estimated at US$ 15 mi l l ion, representing\r\nan internal rate of return of 95%. Two crucial factors explain this apparent success: (1) germplasm\r\nresearch spillovers from ICRISAT and Cameroon's breeding programs substantially reduced the t ime\r\nlag in S 35 research and development in Chad; and (2) the FAO/UNDP-suppor ted seed project at\r\nGassi not only successfully mul t ipl ied S 35 seed on a large scale, but also dist r ibuted it to farmers by\r\nadopt ing the 'mini-doses' approach and involving the Office national de developpement rural and\r\nNGOs .\r\nSince the recommended management practices for S 35 adopt ion are simple, relatively easy to implement\r\nwi t h available fami ly labor and animal t ract ion, and are not capital intensive, the technology has\r\nfound favor wi t h many farmers. Between 1990 and 1995, the percentage of adopting farmers grew f rom\r\n14% to 80%. In 1990, 7% of the total sorghum area (13 000 ha) was sown to the S 35 variety. By 1995,\r\nthe area under S 35 had increased to 27% (66 000 ha). A yield advantage of about 5 1 % over farmers'\r\nlocal varieties is associated wi t h the adopt ion of S 35.\r\nThe three major constraints cited by farmers - susceptibility of the variety to bi r d attack, the high cost of\r\nseed, and low soil fertility - should assist in the formulat ion of future research priorities."^^xsd:string;
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