Indian Society of Genetics & Plant Breeding

Important

COMBINING ABILITY FOR YIELD COMPONENTS AND OIL CONTENT IN SESAME

Published on

The 8 x 8 diallel analysis in Fl generation without reciprocals in sesame revealed that the
variances due to gca and sea were highly significant denoting importance of additive and
nonadditive gene actions for all the eight traits. The estimated components of sca variances
were higher in magnitude for all the traits, indicating the predominance of nonadditive or
dominant gene action for the traits. The parents Vinayak and SP
1162 were good general
combiners for most of the characters, Type
12 for seeds/capsule, oil content and number of
branches, and Pratap for number of capsules, plant height, oil content, days to
flower/maturity, and number of branches, which could be utilized in hybridization
programme. The specific crosses Pratap
x Vinayak, Pratap x TC 25, Type 12 x N 32, Vinayak
x SP 1162, Type 12 x SP 1162, and N 32 x ES 22 appeared to be good for seed yield and most
of the contributing characters. For improvement of the crop, adoption of sU'l.table methods
exploiting additive and nonadditive gene effects is suggested.
  

Keywords: Combining ability, oil content, sesame.

Info

Year: 1991
Volume: 51
Issue: 3
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

Authors

info_circle

Download PDF