Sotomayor-Rios, A. and Weibel, D.E. (1978) Evaluation of seven sorghums, selfed and crossed to three cytoplasmic male-sterile lines. ournal of Agriculture of the University of Puerto Rico, 62 (2). pp. 156-164.
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Abstract
Seven grain-producing Sorghum bicolor lines and their F1 hybrids from crosses with the cytoplasmically male-sterile lines CK60, Martin and Redlan were evaluated for number of days to midflowering, height, reaction to Puccinia purpurea, number of heads per plot, test weight, threshing percentage and grain yield. The seven lines when selfed were, in general, the latest to reach 50% flowering. Four height groups were detected; the taller hybrids were the result of complementary effects of different height factors in the parents. Reaction grade to P. purpurea ranged from 2.9 to 4.9. F1 hybrids CK60 X 5 and Redland X 5 were least susceptible; however, none was less susceptible than parental line 6. Generally, hybrids with a high grain yield also had a high test weight and threshing percentage. Grain yields ranged from 1886 to 4261 kg/ha, Redlan X 9 giving the highest yield. Mean yields were, on average, 26% higher for the F1 hybrids than their respective male parents. Heterosis for grain yield was 67% of that of the respective male parent in Martin X 5 and Redland X 8
| Item Type: | Article |
|---|---|
| Author Affiliation: | Institute of Tropical Agriculture, Mayaguez, Puerto Rico |
| Subjects: | Crop Improvement |
| Divisions: | Sorghum |
| Depositing User: | Ms K Syamalamba |
| Date Deposited: | 17 May 2012 08:54 |
| Last Modified: | 17 May 2012 08:55 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/5436 |
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