Agricultural Science Digest

UGC CARE (Group 1)
  • Year: 2002
  • Volume: 22
  • Issue: 4

Heritability estimates in dwarf population of sunflower (Helianthus annuus L.)

  • Author:
  • D.K. Mishra, D. Roy
  • Total Page Count: 5
  • DOI:
  • Page Number: 219 to 223

Department of Genetics and Plant Breeding, G.B. Pant University of Agriculture and Technology, Pantnagar - 263 145, India

Abstract

A comparison of heritability estimates from regression and intra-class correlation analyses in full-sib and half-sib families showed that heritability estimates from regression analysis were lower than intra-class correlation estimates in both types of families. The heritability estimates from half-sib families were higher than full-sib for all the traits, except number of leaves per plant and 100-seed weight. A comparisqn of heritabiiity estimates from offspring-parents, bOP1, bOP2 and bOMP showed that heritability estimates from regression of offspring-mid parent were higher than offspring-one parents. Further, leaf length showed the lowest heritability in regression analysis. The overall results showed that plant height, 100-seed weight and number of leaves per plant showed higher heritability.