Variability and association analysis for yield and other traits in Soybean
2010
Pandey, Suneeta | Pushpendra | Singh, B.V. | Singh, Kamendra | Manoj Kumar
A set of fifty nine individual plants derived from a cross i.e., Birsa soy -1/ JS-71-05 was used for studying variability and association analysis between eight quantitative characters. The GCV, PCV were estimated as high in comparision to ECV, which indicated that variability was influenced by environment. High heritability was estimated for 100 seed weight (85.7%), germination per centage (84.0%), water absorption (82.2%) followed by dry matter weight per plant (81.2%) and it was moderate for seed yield per plant (75.6%) and pods per plant (75.0%), whereas, the lowest heritability was observed for plant height (63.8%). High value of expected genetic advance was observed for traits viz., germination per centage (46.30), water absorption (23.04), pods per plant (22.27) and dry matter weight per plant (15.19), whereas it was lowest for 100-seed weight per plant (2.46). Genotypic correlation coefficients were generally higher than phenotypic correlation coefficients. The study revealed that water absorption was positively and significantly correlated with germination per centage. Seed yield per plant was significantly and positively correlated with number of pods per plant and dry matter per plant.
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