Vol. 11, Issue 10 (2022)

Author(s):
Simran Kirti, Ajay Kumar and VK Sharma

Abstract:
A study was conducted to evaluate genetic variability, broad sense heritability, genetic advance and genetic diversity for yield and yield attributing traits among inbred lines of baby corn. Fifteen inbred lines including three testers of baby corn were evaluated for days to 50% silking, days to 50% tasseling, plant height, ear height, cob weight, baby corn girth, baby corn length, cob yield and green fodder yield in randomized block design with three replications during two seasons. Significant differences were observed for all traits recorded amongst the entries in both the seasons. Mean sum of squares due to seasonal differences was found significant in pooled analysis for all traits with the exception of plant height and cob weight, whereas interaction effects were found non-significant for all traits. Moderate to high estimates for phenotypic and genotypic coefficient of variability, broad sense heritability and genetic advance as per cent of means were obtained for most of the characters during both the seasons. Divergence analysis based on pooled data discriminated the entries into one multi-genotypic and four mono-genotypic clusters. The four mono-genotypic clusters accommodated two inbreds and two testers amongst the entries evaluated. Relatively higher genetic divergence was recorded between multi-genotypic cluster and the two mono-genotypic clusters occupied by the inbred lines. Divergence analysis assisted in identification of diverse groups among the inbred lines under evaluation.