http://oar.icrisat.org/id/eprint/7160 2016-10-19T06:25:22Z info:eu-repo/semantics/descriptiveMetadata http://oar.icrisat.org/7160/ Yield of Photoperiod-sensitive Sorghum Hybrids Based on Guinea-race Germplasm under Farmers’ Field Conditions in Mali Rattunde, H F W Weltzien, E Diallo, B Diallo, A G Sidibe, M Toure, A O Rathore, A Das, R R Leiser, W L Toure, A Sorghum Genetics and Genomics The first sorghum [Sorghum bicolor (L.) Moench] hybrids based on West African Guinea-race-derived parents were created to enhance farmer’s food security and income through increased yields. To assess their performance, eight hybrids, six experimental pure-line cultivars, one pure-line check (Lata), and a highly adapted landrace cultivar (Tieble) were evaluated in 27 farmer-managed and two on-station yield trials in Mali, West Africa, from 2009 to 2011. The hybrids were confirmed to have photoperiod sensitivity similar to the well-adapted Guinea landrace check cultivar. Genotypic differences for on-farm grain yield were highly significant and genotype × environment crossover interactions were limited. The yield superiorities of individual hybrids, relative to the landrace check, ranged from 17 to 37% over the 27 on-farm trials. The three top yielding hybrids showed 30% yield advantages across productivity levels, with absolute yield advantages averaging 380 kg ha−1 under lower (1.0–1.5 t ha−1) and 660 kg ha−1 under higher (2.0–3.5 t ha−1) productivity conditions. A mean male-parent (better parent) heterosis of 26% was observed for the four hybrids having Lata as a male parent. As the hybrids studied here were obtained with a low intensity of selection using a limited number of parents, even greater yield superiorities may be attained with development of distinct parental pools and scaled-up hybrid breeding. Crop Science Society of America 2013 Article PeerReviewed application/pdf en http://oar.icrisat.org/7160/1/cs-53-6-2454.pdf Rattunde, H F W and Weltzien, E and Diallo, B and Diallo, A G and Sidibe, M and Toure, A O and Rathore, A and Das, R R and Leiser, W L and Toure, A (2013) Yield of Photoperiod-sensitive Sorghum Hybrids Based on Guinea-race Germplasm under Farmers’ Field Conditions in Mali. Crop Science, 53 (6). pp. 2454-2456. ISSN 1435-0653 http://dx.doi.org/10.2135/cropsci2013.03.0182 info:eu-repo/semantics/objectFile info:eu-repo/semantics/humanStartPage