Indian Journal of Agricultural Research
SCOPUSWeb of Science
  • Year: 2005
  • Volume: 39
  • Issue: 1

Heterosis and inbreeding depression for yield and physiological attributes in groundnut

  • Author:
  • V. Jayalakshmi1, G. Lakshmikantha Reddy
  • Total Page Count: 6
  • Page Number: 25 to 30

Department of Genetics and Plant Breeding, S. V. Agricultural College, Tirupati-517 502, India.

1Regional Agricultural Research Station, Nandyal - 518 503, (A. P.).

Abstract

Estimates of heterosis and inbreeding depression were obtained for 21 groundnut crosses. Manifestation of heterosis was of higher order for pod yield, shoot biomass, mature pod number per plant and root dry mass. Highest inbreeding depression was observed for pod yield followed by root dry mass and shoot biomass. Several crosses exhibtted heterosis for pod yield and other physiological attributes. Cross ICG V 86031 × TG 26 for pod yield, root dry mass and harvest index; crosses TAG 24 × JL 24 and Tirupati 1 × TMV2-NLM for pod yield and shoot biomass were identified for further exploitation.