1Present Address: Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana-141 004, (Punjab), India
Department of Genetics and Plant Breeding, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, 221 005, Uttar Pradesh, India
*Email of corresponding author: gaikwadkb@gmail.com
Online published on 15 October, 2015.
Study was conducted to determine heterosis in F1 hybrids and inbreeding depression in F2 generation of ten sesame (Sesamum indicum L.) crosses with respect to seed yield and itscomponenttraits. Amongthe hybrids, JLT8xES 3recorded highest relative heterosis (38.85%), heterobeltiosis (20.57%) and standard heterosis (54.05%) for seed yield plant−1. This cross followed by cross GT 1 x ES 3 was superior in terms of number of capsules plant−1, length of capsule and number of seeds capsule−1. Negative inbreeding depression wasobservedfordaysto50% floweringanddaystomaturity. Yield plant−1 and number of capsules plant−1 showed considerable inbreeding depression in F2 generation.
Heterosis, Inbreeding depression, Seed yield, Sesame
