Indian Society of Genetics & Plant Breeding

Genetics of anther culture capability traits and its association with seed yield traits in sesame

Published on

Successful development of heterotic hybrids in the
autogamous sesame crop depends largely on the general
combining ability of the parents as well as the specific
combining ability of the hybrids produced from them.
Homogeneity of V
r -Wr values and non-significance of
regression coefficient (b) in a 6 parents half diallal cross
were found in respect of capsule length, seeds per capsule,
plant height, callus induction frequency, days to callus
induction and
response to somatic embryogenesis
indicating validity of Hayman’s assumptions. The estimates
of D, H
1 and H2 components indicated predominance of
non-additive gene action in the inheritance of these six
traits, and the ADD estimates indicated overdominance for
all these characters. The estimates of F and K
presence of more of dominant alleles in the parental
population except for response to somatic embryogenesis.
Strong positive association was recorded between seed
yield and
in vitro traits viz., callus induction frequency,
callus fresh weight and somatic embryogenesis. This
indicates that anther culture technique can assist in early
screening for combining ability of parents as well as direct
selection for heterotic crosses at an earlier stage of hybrid
breeding programme.

Keywords: Sesame, combining ability, correlation, anther culture, Hayman’s approach


Year: 2020
Volume: 80
Issue: 4
Article DOI: 10.31742/IJGPB.80.4.7
Print ISSN: 0019-5200
Online ISSN: 0975-6906



Download PDF