Character Association and Path Coefficient Analysis for Grain Yield and Yield Attributing Morpho-physiological Traits in Sorghum (Sorghum bicolor L. Moench)
2015
Jayashree, P. | Selvi, B. | Civakumār, Es. | Kalpana, R. | Karthikeyan, G.
An investigation was carried out with 10 parents and their 24 hybrids (L x T mating design) of sorghum to assess degree of association between grain yield and yield components as well as to measure the direct and indirect effects of observed morpho-physiological traits on grain yield plant⁻¹. Correlation studies revealed that leaf chlorophyll index, flag leaf area, panicle length, panicle weight, biological yield plant¹ and harvest index had significant positive association with grain yield plant⁻¹. Path analysis showed that harvest index exerted high positive direct effect on grain yield plant⁻¹, followed by biological yield plant⁻¹ (High), plant height (Moderate) and panicle weight (Moderate). Whereas, moderate negative direct effect on grain yield plant⁻¹ was recorded in flag leaf area. Hence, those characters with positive effect on grain yield may be considered as selection indices in sorghum breeding programme aimed at grain yield improvement.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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