GENETIC VARIABILITY FOR HERBAGE AND SEED YIELD IN CORIANDER (Coriandrum sativum L.) UNDER HILL ZONE OF KARNATAKA
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Date
2012-11
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University of Horticultural Sciences, Bagalkot (COLLEGE OF HORTICULTURE, MUDIGERE)
Abstract
The experiment was undertaken to evaluate seventy one coriander genotypes in
Randomized Complete Block Design with two replications to study the genetic
variability, heritability, correlation and path analysis at College of Horticulture,
Mudigere during the period between January-2012 to March-2012. Analysis of variance
revealed highly significant (at P=0.01) difference among genotypes for thirty one
parameters studied. Broad genetic base was evident as the value of genotypic and
phenotypic coefficient of variance was high for plant height at 30 DAS, thousand seed
weight, number of secondary branches at 60 DAS and harvest index. High heritability
coupled with high genetic advance was observed for number of leaves and fresh weight
of the plant at 30 DAS, dry weight of the plant at 30, 60 DAS at harvest, herbage yield,
number of seeds per umbellet at 60 DAS and at harvest, seed yield per plant and seed
yield per hectare indicated the predominant role of additive genetic component in
governing of these traits. Correlation studies indicated highly significant and positive
association of seed yield per plant with number of umbels per plant at 60 DAS, number
of umbellets per umbel at 60 DAS and thousand seed weight both at genotypic and
phenotypic level, whereas herbage yield and number of seeds per umbel at 60 DAS
showed positive and significant correlation for both at genotypic and phenotypic level.
Path coefficient analysis revealed that plant height at 60 DAS, number of leaves at 60
DAS, dry weight of the plant at 60 DAS, herbage yield, days to fifty per cent flowering,
number of umbels per plant at 60 DAS, number of umbellets per umbel at 60 DAS, crop
duration, harvest index, seed yield per hectare characters have direct positive effect on
seed yield. Among 71 genotypes evaluated, the genotypes DCC 37, DCC 49 and DCC
51 were found promising in terms of both herbage and seed yield under hill zone of
Karnataka.