Beyond NERICA: high-yielding rice varieties adapted to rainfed upland conditions in Benin
Experiments have been conducted in four rainfed upland areas to assess yield differences in 65 rice varieties, including the interspecific hybrids: the upland New Rice for Africa (NERICA) varieties developed from crossing Oryza sativa L. and O. glaberrima Steud. Upland indica varieties performed well in three out of four environments, showing consistently higher yields than other upland NERICA varieties and their parents. None of the upland NERICA varieties showed consistently higher yields than their parents across the four environments. These and other results suggest that further increases in rice yields in the rainfed uplands of West Africa are most likely to occur through using upland indica varieties as donors. Researchers from the Africa Rice Centre in Benin, the Japan International Research Centre for Agricultural Science (JIRCAS, Japan) and JICA (Japan) conducted the experiments.
(Tropical Agriculture and Development, 11 /09/2014)
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