GENETIC AND ENVIRONMENTAL VARIABILITY, HERITABILITY AND GENETIC ADVANCE IN POD YIELD, YIELD COMPONENTS, OIL AND PROTEIN CONTENT OF PEANUT VARIETIES

Authors : Fatih KILLI, Tahsin BEYCİOĞLU

Pages : 71-77

Doi:10.17557/tjfc.1050448

View : 63 | Download : 15

Publication Date : 2022-06-20

Article Type : Research Paper

Abstract :In this study, genetic and environmental variability, broad-sense heritability, genetic advance and correlation coefficients of pod yield, yield components, oil and protein content of ten registered peanut varieties were examined. Year insert ignore into journalissuearticles values(Y);, location insert ignore into journalissuearticles values(L);, year x location interaction insert ignore into journalissuearticles values(Y x L);, genotype insert ignore into journalissuearticles values(G);, genotype x year interaction insert ignore into journalissuearticles values(G x Y);, genotype x location interaction insert ignore into journalissuearticles values(G x L); and genotype x year x location interaction insert ignore into journalissuearticles values(G x Y x L); were significant, but G x Y for shelling percentage was not significant. Genotypic and phenotypic variances were highest for pod yield followed by hundred pod weight, whereas all investigated traits of peanut varieties were significantly different. Broad sense heritability estimates ranged from moderate level to high. Heritability values were estimated to be maximum for shelling percentage insert ignore into journalissuearticles values(95.4%);, hundred kernel weight insert ignore into journalissuearticles values(91.6%);, hundred pod weight insert ignore into journalissuearticles values(88.3%);, while moderate for pod number insert ignore into journalissuearticles values(63.8%);, pod weight insert ignore into journalissuearticles values(60.4%);, first quality pod ratio insert ignore into journalissuearticles values(63.3%);, pod yield insert ignore into journalissuearticles values(63.2%);, oil content insert ignore into journalissuearticles values(52.0%); and protein content insert ignore into journalissuearticles values(52.5%);. High heritability for shelling percentage, hundred kernel weight and hundred pod weight indicated that these characteristics were affected less than the others by the environmental conditions. The magnitudes of genetic advance were observed to be very high insert ignore into journalissuearticles values(>50%); for hundred pod weight, 100 kernel weight, pod weight and pod yield; moderate insert ignore into journalissuearticles values(20-50%); for pod number, first quality pod ratio, shelling percentage and low insert ignore into journalissuearticles values(<20%); for oil and protein content. Significant and positive relationships were found the pod yield and pod number, pod weight, hundred pod weight and hundred kernel weight.
Keywords : Groundnut, genotypic and phenotypic variance, genetic advance

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