Vol. 10, Issue 10 (2021)

Author(s):
A Rajani, L Naram Naidu, RVSK Reddy, D Srikanth, N Ratna Kumari and D Ratna Babu

Abstract:
The present investigation was taken up at three different locations named HRS Lam, KVK Venkataramannagudem and KVK Vonipenta, Andhra Pradesh, India during 2018-2019, to study the combining ability of six different lines of okra. They were mated diallel fashion excluding reciprocals and their fifteen crosses were evaluated along with six parents and one commercial check in Randomized block design (RBD) for yield and quality attributing traits. The pooled analysis for combining ability over three locations revealed significant differences among treatments for all the characters studied. The effects due to parents were significant for all the traits studied except for fruit girth, fruit length and fruit weight. The differences among the hybrids were observed to be significant for all the characters studied except fruit girth and test weight. The differences among the parents vs. hybrids were recorded to be significant for all the characters except for number of fruits per plant and fibre content. The lines HRB-9-2 and VRO-3 recorded significant positive gca effects and were found to be promising general combiners for yield attributing traits. In respect of sca effects, none of the 15 hybrids was found to be superior for all the traits under investigation whereas, only one cross i.e., 440-10-1 x HRB-9-2 recorded significant positive sca effects for fruit yield per plant in okra. The knowledge of combining ability helps in identifying good combiners for hybridization.