ESTIMATES OF GENETIC VARIABILITY FOR MAIN SPIKE CHARACTERS IN SOME GENOTYPES OF WHEAT | ||||
| Journal of Plant Production | ||||
| Article 3, Volume 27, Issue 7, July 2002, Page 4371-4377 PDF (786.7 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2002.255600 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| S. M. Salama,; Samia G. A. Mouhamed | ||||
| Cen. lab. For Design and Stat. Res. Agricultural Research Center, Giza, Egypt. | ||||
| Abstract | ||||
| In 45 Fs and 10 parents of wheat were used to estimate some genetic variability for main spike characters. The parents were: Gemmeiza1. Gemmeiza3, Sakha 69, Sids 1, Giza 165, Sakha 8, Giza 163, Giza 162, Sakha 92 and Giza 164. The 45 F5 genotypes were introduced through dialiel crosses mating design10x10. The studied characters were, heading date, spike length, number of grains/spike, 1000-grain weight and grain weighVspike. This investigation was conducted at Tag EI- Ezz Research Station Oakahlia Governorate dunng 2000/2001 and 2001/2002 growing seasons. The results indicated that the cross Gemmeiza1x Giza 163 show earliness. longest of spike and highest of 1000-grain weigh while cross (Sids1xGiza 164) was the highest for number of grains/spike and grain weighVspike. Phenotypic and genotypic variances showed highest estimates concerning of all studied characters. Estimates of phenotypic and genetic advance indicated high values for heading date 1000 grain weight and grain weighVspike. Heritability in broad sense was high for these characters; it was 95.29% for heading date, 94.56% for 1000-grain weight and 94.31 % for grain weighVspike. The phenotypic correlation coefficients cleared that there was highly significant and positive correlation between grain weighVspike and remaining characters, except 1000-grain weight whereas it was highly significant and negatively between 1000-grain weight and both spike length and number of grains/spike. | ||||
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