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Researcher Sapara, G. K.
Advisor Dhaduk, L. K.
Source KrishiKosh-Indian National Agricultural Research System
Content type Text
Educational Degree Master of Science (M.Sc.)
Publisher JAU
File Format PDF
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Plants (Botany)
Subject Keyword Botany ♦ Character Association and Path Analysis In Vegetable Cowpea [ Vigna Unguiculata( L.) Walp.]
Abstract The present study was planned to assess genetic variability, character association and path coefficients, in 40 genotypes of cowpea grown in Randomized Block Design with three replications at Main Vegetable Research Station, Junagadh Agricultural University, Junagadh during summer 2007. The observations were recorded on 12 character viz., green pod yield per plant, days to 50 % flowering, days to 1st pod picking, number of primary branches per plant, plant height, pod length, pod width, number of pods per plant, 10-pods weight, number of fresh seeds per pod, 100-fresh seeds weight and fresh pod crude protein content. Analysis of variance revealed significant differences among the genotypes for all the characters studied except pod width. High to moderate range of variation was observed for important yield components. High estimates of genotypic coefficient of variation were observed for number of pods per plant, 100-fresh seeds weight, plant height and green pod yield per plant. The values were observed to be moderate for number of primary branches per plant, pod length and fresh pod crude protein content. High heritability along with high genetic advance expressed as percentage of mean and high genotypic coefficient of variation was observed for number of pods per plant, 100-fresh seeds weight, 10-pods weight, green pod yield per plant, plant height. The analysis of correlation coefficients suggested that the magnitude of genotypic correlations were higher than the corresponding phenotypic correlations. Yield contributing character number of pods per plant had positive and highly significant association with green pod yield per plant at phenotypic level. Phenotypic interrelationship between days to 50 % flowering and days to 1st pod picking was found negative and significant. Genotypic correlations of above said yield components with green pod yield were also strong and with similar sign. The genotypic and phenotypic path analysis revealed the high to moderate positive direct effects of number of pods per plant and pod length towards green pod yield. Number of pods per plant contributed indirectly via 100-fresh seeds weight and pod length via. 10-pods weight. Based on correlation and path analysis, number of pods per plant and pod length were identified as the most important yield contributing characters.
Educational Use Research
Education Level UG and PG
Learning Resource Type Thesis
Publisher Place Junagadh
Size (in Bytes) 91.18 MB
Page Count 130