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Journal of Applied Sciences
Year: 2009  |  Volume: 9  |  Issue: 7  |  Page No.: 1383 - 1387

Genetic Variability of Some Morpho-Physiological Traits in Durum Wheat (Triticum turgidum var. Durum)

M. Maniee, D. Kahrizi and R. Mohammadi    

Abstract: The present investigation was carried out to (i) study some agro-physiologic traits and (ii) to estimate genetic variability parameters for the studied traits in 12 advanced durum wheat genotypes along with the two local checks (Zardak and Sardari). Statistical analysis showed significantly differences among the genotypes based on the studied traits. Genotypic and phenotypic coefficients of variations were high for number of tiller (NT), leaf dry weight (LDW), stem dry weight (STW), spike length (SL) and leaf area duration (LAD). Heritability estimates were high for plant height (PH), LDW and SL. High genetic gain was observed for grain yield, NT, peduncle length (PL), LDW, STW, spike dry weight (SPW), SL and LAD. Correlation analysis showed the grain yield was significantly correlated with traits LP, SPW, SL and relative growth rate (RGR). High heritability estimates associated with high genetic advance as percent mean (GG) were obtained in characters i.e., LDW, PH, SL and LAD, whereas low heritability and high genetic advance was observed for the grain yield.

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