Heritability Estimates and Correlations among Flowering and Yield Related Traits in Mungbean Genotypes
Sabra Begum, Muhammad Noor, Hidayat ur Rahman, Ghulam Hassan, Durrishahwar, Hidayat Ullah, Alia, Farhan Ali
Current Journal of Applied Science and Technology · pp. 472–481 · Published 2 Apr 2013
10.9734/BJAST/2014/2588Abstract
Heritability and correlation are the key components while, conducting an experiment for some specific traits on plant breeding. Keeping in view that importance this study was carried out utilizing 10 mungbean genotypes. Field Experimental was conducted in Randomized Complete Block Design (RCBD) with four replications. The parameters studied include, days to flowers initiation (DF), days to pods initiation (DPI), plant height (PH), days to maturity (DM), grain yield plant-1(GY) and 100-grain weight (100-GW). Significant differences (P≤0.01) were observed for DF, PH, DM and 100-GW, while days to pods initiation and grain yield plant-1 showed considerable difference at P≤0.05. Genotype NM-93 took minimum number of days to 50% flowering (42.0 days), days to pods initiation (66.50 days) and days to maturity (78.25). Maximum grain yield was recorded for genotype Ramzan (45.35) while maximum 100-grain weight was recorded for NM-93 (5.85). High heritability was recorded for days to 50% flowering (88.75%), days to maturity (86.29%), 100-grain weight (77.17%) and plant height (67.32%). Low heritability was recorded for days to 50% pods formation (31.72%) and grain yield plant-1 (33.50%). The results revealed that grain yield plant-1 had highly significant phenotypic correlation with days to 50% pod formation (0.60) and with 100-grain weight. Grain yield plant-1 had significant genotypic correlation with days to pods formation (0.70). Therefore, days to flowering, days to maturity and100-grain weight can be recommended as selection indices for high yield and genotypes Ramzan, NM-93 and NM19-19 can be used in further mungbean breeding programmes.
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