Indian Journal of Plant Genetic Resources

  • Year: 2006
  • Volume: 19
  • Issue: 1

Genetic Variability in Aghani Group of Indian Cauliflower (Brassica oleracea var. botrytis)

  • Author:
  • B Singh, Ajay Kumar Pandey, Ajay Verma, Mathura Rai
  • Total Page Count: 5
  • DOI:
  • Page Number: 113 to 117

Indian Institute of Vegetable Research, Banaras Hindu University, Varanasi-221005 (Uttar Pradesh).

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Abstract

Highest variability was observed in leaf size, curd weight without guard leaves and curd weight with guard leaves. Phenotypic coefficient of variance was invariably higher than corresponding genotypic coefficient of variance for all the morphological traits. More than 80% heritability was recorded for curd weight with guard leaves, curd weight without guard leaves and leaf size. Leaf size, curd weight with guard leaves and curd weight without guard leaves exhibited high genetic advance along with high heritability. Yield was significant and positive correlated with curd width and curd weight with guard leaves. Leaf size had positive correlation with curd weight with guard leaves. Head compactness exhibited negative significant correlation with curd width. The highest positive direct effect was exerted by curd weight with guard leaves and curd width whereas negative effect observed for leaf size. Multivariate Cluster Analysis based on Ward's method showed that the genotypes were mainly divided at the first node into 2 elusters with 7 and 23 genotypes in different groups.

Keywords

Aghani cauliflower, PCV, GCV, h2, Genetic advance, Multivariate clustering