Factor analysis of yield and yield related traits in durum wheat genotypes in Southern Tigray, Ethiopia
Keywords:
factor analysis, durum wheat, genotypesAbstract
To assess the relationship of traits in durum wheat a study was conducted in southern Tigray using twenty durum wheat genotypes during 2014.The experiment was replicated four times and laid out in a randomized complete block design. The durum wheat genotypes were evaluated for days to heading, days to maturity, plant height, and spike length, number of seeds per spike, thousand seed weight and Yield. All the traits had a wide range of agro-morphological variation except spike length. The seven traits were explained by the four factors capturing 85% of the variability in the data set. The first factor explained 30.89% of the variability and the traits maturity date and heading date was with higher positive coefficient greater than 0.5 and Eigen value 2.16. The second factor explained 22.46% variance in the data set with Eigen value1.57 and plant height ,grain yield and thousand seed weight where related in this factor and indirect selection using plant height and thousand seed weight could be effective in selecting of higher yielder durum wheat genotype.
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