Indian Journal of Plant Genetic Resources
  • Year: 2004
  • Volume: 17
  • Issue: 2

Variability Studies in Sunflower Lines Derived through Interspecific Hybridization

  • Author:
  • GS Mohan1, A Seetharam2,
  • Total Page Count: 4
  • Page Number: 121 to 124

1Department of Genetics and Plant Breeding, University of Agricultural Sciences, GKVK, Bangalore-560 065, Karnataka.

2All India Coordinated Crop Improvement Project (Small Millets), University of Agricultural Sciences, GKVK, Bangalore-560 065, Karnataka.

* Correspondence: Dr. A Seetharam, Emeritus Professor, AICRP (Small Millets), University of Agricultural Sciences, GKVK, Bangalore-560 065, Karnataka, Telefax: 091 8023332387 Email: annadanasram@rediffmail.com

Abstract

Variability and per se performance of 137 interspecific derived sunflower lines along with seven known cultivated sunflower accessions was assessed during the study. Considerable variation for several important agronomic attributes was seen in the interspecific derived lines. High values of phenotypic and genotypic coefficient of variability, and high heritability with high genetic advance were observed for seed yield/plant, oil yield/plant. plant height, head diameter, oil content and test weight indicating the scope for utilization in crop improvement. The study could identify a few superior seed and oil yielding lines with comparable Alternaria leaf spot tolerance to the best check.

Keywords

Coefficient of variability, Interspecific hybridization, Per se performance