Indian Society of Genetics & Plant Breeding
Twentyone hybrids alongwith seven parents and two
checks viz., Chetak Aphim and IC-42 were evaluated
for combining ability and standard heterosis for latex
yield/plant, seed yield/plant, husk yield, stem diameter,
number of effective capsules/plant, plant height,
peduncle length, days to flower initiation and days to
50% flowering. Both additive and non-additive gene
effects were present in the material under study.
However, the ratio of additive and non-additive genetic
variance revealed that there was preponderance of
non-additives gene action in the expression of all the
traits under stUdy. Among the parents, the UOP-82 was
identified as good general combiner for latex yield/
plant, seed yield/plant, husk yield/plant, plant height
and peduncle length. The hybrid UOP-82 x NOP-204
exhibited highest magnitude of positive significant sca
effects with highest standard heterosis and per se
performance for latex yield/plant. This hybrid also
exhibited positive significant sea effects for stem
diameter, number of effective capsules/plant and
peduncle length. In general, close association between
sea effects and standard heterosis was observed
among the best hybrids identified on the basis of sea
effects for latex yield.
Keywords: Combining ability, standard heterosis, diallel analysis, opium poppy, latex, seed yield
Year: 2007
Volume: 67
Issue: 4
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906
R. B. Dubey, S. K. Jain and S. R. Maloo info_circle
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