PERFORMANCE OF F1 GRAIN SORGHUM HYBRIDS (Sorghum bicolor L. MOENCH) AND ESTIMATE COMBINING ABILITY | ||
| Journal of Plant Production | ||
| Article 2, Volume 31, Issue 1, January 2006, Pages 17-27 PDF (3.74 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpp.2006.235676 | ||
| Author | ||
| M. R. A. Hovny, | ||
| Sorghum Research Dept., Field Crop Research Institute, ARC, Egypt. | ||
| Abstract | ||
| Twenty-four grain sorghum hybrids, obtained by crossing each of three male sterile lines to eight restorer lines, were evaluated in a randomized complete block design at two locations, Shadwell Agric. Res. Farm - Sohag and Assiut Univ. Agric. Res. Farm, n 2001 seascn. Measurements for grain yield! plant. days to 50% flowering, Fant height and 1000-grain weight were recorded. The genetic parameters ‘Nere estimated by using line x tester analysis. The combined data over the two locations revealed that six crosses out-yielded significant by the check hybrid (Shandaweel-6). Heterosis for grain yield / plant was high for these six crosses and it was 59.35, 57.72, 50.41, 50.10, 48.54 and 41.13 % over the best parent for the crosses ( ICSA-10288 x MR-812 ), (ICSA-10288 x ICSR-94005 ), ( ICSA-10288 x ICSR-93001), ( ICSA-10288 x ICSR-93021), ( ICSA-10288 x ICSR-92003 ) and ( ICSA-37 x ICSR-92003),respectively. The female lines ICSA-10288; ICSA-37 and the restorer lines MR-812, ICSR-94005 ICSR-93001, ICSR-93021 and 1CSR-92003 were good combiners for grain yield. For specific combining ability (sca), the cross (ICSA 10288 x MR-812) had highly significant sca effect. The six hybrids that out-yielded than the check hybrid needs to be tested on large scale before releasing as commercial hybrids | ||
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