USING OF PARTIAL DIALLELE ANALYSIS TO ESTIMATE HETEROSIS, INBREEDING DEPRESSION AND COMBINING ABILITY IN DRY BEANS (Phaseolus vulgaris L.). | ||
| Journal of Plant Production | ||
| Article 18, Volume 27, Issue 10, October 2002, Pages 6929-6939 PDF (2.97 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpp.2002.256553 | ||
| Author | ||
| S. M. A. Mohamed, | ||
| Veg. Res. Dept., Hort. Res. Inst., Giza, Egypt. | ||
| Abstract | ||
| Heterosis, inbreeding depression and combining ability has been estimated and studied in a partial diallel analysis in 12 crosses including 8 bean parents, Phaseolus vulgaris L., and their F2 generations. These materials were evaluated for number of days to 50% flowering, number of days to dry harvesting, seed index (1000 seed weight), seed yield per plant and protein content. Six crosses showed positive heterosis for seed yield per plant. Parents in each of these heterotic crosses differed in growth habits, seed size and geographical origin. Significant differences in all characters were found among the F1 hybrids and F2 generations except for protein content. Some F2 generations outperformed the corresponding F1 hybrids. For general combining ability (GCA), significant differences were obtained in four characters. Three characters showed significant differences for specific combining ability (SCA). | ||
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