GENETIC STABILITY OF SOME WHEAT GENOTYPES UNDER FOUR VAROUS ENVIRONMENTS | ||
| Journal of Plant Production | ||
| Article 5, Volume 34, Issue 5, May 2009, Pages 4753-4760 PDF (624.59 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpp.2009.117285 | ||
| Author | ||
| R. A. Ramadan* | ||
| Field Crop Institute, Wheat Res. Section (A.R.C.) ,Giza , Egypt | ||
| Abstract | ||
| Ten wheat genotypes (Triticum aestivum L.) were Evaluated for yield and its attributing characters under four environments(two locations x two seasons).The genotypes were; Sakha 93, Sakha 94, Giza 168, Sids 1, Sids4, Sids6, Sids9, Sakha61, Gemmeiza 9 and Gemmeiza 10 The mean performance, phenotypic stability and interrelationship between various characters were computed. The results indicated that, significant genotypes; genotype x environment, environmental linear and genotype x environment linear variance for all studied characters. Regression coefficient (b) deviated significantly from unity (b > 1) for genotypes, Sids 1 and Sakha 61 for plant height , Sids9 and Gemmeiza 9 for spike length and Sids 9 for 1ooo grain weight; indicating that these genotypes were adapted to favorable environments for these characters. The “b” value deviated significantly from unity and was less than one (b < 1) in Sids 1, Sids 4 and Sids 9 for1000 grain weight , grain weight / spike, and grain yield ardab / fad . The genotypes for considering the stability parameters (C.V% and S2d accompanished with mean performance (X), the most desired and stable wheat genotypes were Gemmeiza9 for plant height, spike grain weight and grain yield (ard /fad), Sids 1 for spike length , grain weight/spike . While Sakha 94 was stable for number of spikes/plant. Correlation coefficients values were positive and significant between yield /fad and each of all studied characters except plant height. | ||
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