EVALUATION AND GENOTYPIC STABILITY FOR THE HYBRID (GIZA 89 X GIZA 86) AND SOME EGYPTIAN LONG STAPLE COTTON VARIETIES | ||||
| Egyptian Journal of Agricultural Research | ||||
| Article 17, Volume 81, Issue 3, September 2003, Page 1171-1192 PDF (5.49 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejar.2003.282799 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| SAMY S. M. BADR | ||||
| Cotton Research Institute, Agricultural Research Center, Giza, Egypt | ||||
| Abstract | ||||
| The present investigation aimed to determine evaluation and genotypic stability for some Egyptian long staple cotton genotypes i.e.:promising hybrid (Giza 89 x Giza 86) and three varieties i.e.:- Giza 85, Giza 86 and Giza 89 under twelve different environments. Each single carried trial was grown in a randomized complete block design with four replications. Nine characters were studied. All characters showed highly significant mean squares for environments and genotype x environment interaction> All characters except seed cotton yield k/f showed highly significant mean squares for genotypes. The new hybrid (Giza 89 x Giza 86) surpassed Giza 89 in all studied characters, on Giza 85 except lint percentage and on Giza 86 seed cotton yield, lint percentage and 2.5% span length at most studied environments. Giza 86 gave the highest lint percentage and 2.5% S.L. more than the other genotypes it surpassed Giza 85 in all studied characters except S.C.Y. and seed index an on Giza 89 in all studied characters except S.C.Y. Giza 85 surpassed Giza 89 for seed index while Giza 89 surpassed Giza 85 in (2.5% and 50%) S.L. Average genotypic stability degrees were recorded for seed cotton yield k/f for Giza 85; boll weight for Giza 89; seed index for Giza 86 and Giza 89; lint percentage for Giza 86; 2.5% S.L. for (Giza 89 x Giza 86) hybrid; 50% S.L. for Giza 86; L.U.R. for Giza 85 and Giza 86, while all genotypes under study were unstable for micronaire reading and yarn strength. It can be recommended by sowing Giza 86 at Kafr EI-Sheikh and sowing (Giza 89 x Giza 86) hybrid as an alternate of Giza 85 and Giza 89 at the other studied regions. | ||||
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