Sotomayor-Ríos, A. and Torres-Cardona, S. (1984) Agronomic performance, hydrocyanic acid potential (HCN-p) and heterosis in forage sorghum hybrids. Journal of Agriculture of the University of Puerto Rico, 68 (2). pp. 131-141.
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Abstract
The male-sterile Sorghum bicolor variety Combine Kafir 60 (CK60) was crossed with Roma and 6 varieties of S. sudanense. In field tests, 3 cuts were made at 60-day intervals. Differences were observed among the hybrids in yields of green forage, dry forage and crude protein; in contents of dry matter and crude protein; in number of tillers per plant, weight and leaf area. There were differences in HCN-p at 45 days. The F1 hybrids from crosses of CK60 with Florida 357, Common and Lahoma gave the highest yields of dry forage (20 t) and crude protein (2 t) in 180 days and had lower HCN-p values than the other hybrids. The HCN-p values of all the hybrids were lower at 60 days than at 45 days. The hybrid CK60 X Common showed the greatest heterosis, giving yields of 146 and 125% more dry forage than the midparental and better-parent values, respectively. The HCN-p value at 60 days was lower in Florida 357 than in the other male parents. Lahoma had the highest yield potential and an intermediate value for HCN-p (191 p.p.m.)
| Item Type: | Article |
|---|---|
| Author Affiliation: | USDA, Tropical Agriculture Research Station, Mayagüez, Puerto Rico 00709 |
| Subjects: | Plant Production Plant Protection |
| Divisions: | Sorghum |
| Depositing User: | Mr B Krishnamurthy |
| Date Deposited: | 12 Mar 2012 14:10 |
| Last Modified: | 12 Mar 2012 14:10 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/3792 |
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