Genetic Diversity and Trait Association among Some Yield Parameters of Wheat Elite Lines Genotypes under Rainfed Conditions
2013
Zeeshan, Muhammad | Arshad, Waheed | Ali, Shiraz
Genetic divergence and correlation studies were conducted in F1 progenies of an 8x8 complete diallel cross of wheat genotypes, sown at the research area of Barani Agricultural Research Station, Fatehjang during 2009-10. All the genotypes / lines exhibited significant differences for all the traits under study. The association among different yield contributing traits was studied at genotypic and phenotypic levels. The results revealed positive correlation in case of number of spikelets per spike, number of grains per spike and 1000 grain weight with grain yield at both genotypic and phenotypic levels. However, number of tillers per m and spike length contributed negatively towards grain yield at both levels. Plant height was positively correlated with grain yield at genotypic level, whereas negatively correlated at phenotypic levels. It was, therefore, suggested that number of spikelets per spike, number of grains per spike and 1000 grain weight should be given emphasis for future wheat yield improvement programs.
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