Response of Some Grain Sorghum Genotypes to Water Deficit
2012
S. Aharizad | S. Shahbazi | A. Mohammadi | A. Fouman Ajirlo | M. Noruzi
To study the effect of drought stress on some grain sorghum lines, a split plot experiment based on complete randomized block design with three replications was conducted during 2007-8 at the Agriculture Research Field of Islamic Azad University, Tabriz Branch, Iran. Irrigations after 60, 120 and 180 mm evaporation from the pan were assigned to main plots and seven lines of grain sorghum to sub plots. Multivariate analysis of variance was fulfilled for fixation of type Ι error. Analysis of variance showed significant differences among lines and irrigations for most of the traits. Based on mean comparison, KGS5 and KGS15 showed the highest means for most of the yield related traits. Path analysis was conducted by using the stepwise regression on mean of irrigation levels. Results showed that panicle length and 1000 kernel weight were the most effective components on grain yield.
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