Heterosis and combining ability analysis in Chickpea (Cicer arietinum L.)
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Date
2009
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MPUAT, Udaipur
Abstract
The present investigation entitled “Heterosis and combining ability
analysis in chickpea (Cicer arietinum L.)” was conducted during Rabi, 2008.
In the experiment six parents and their all possible crosses (excluding
reciprocals) of desi chickpea were grown at Experimental Farm of
Department of Plant Breeding and Genetics, Rajasthan College of
Agriculture, Udaipur. This experiment was conducted in random block design
with three replications.
Observations recorded on eleven characters viz., days to 50% flowering,
days to maturity, plant height, number of branches per plant, number of pods
per plant, number of grains per pod, 100 grain weight, biological yield, grain
yield per plant, harvest index and seed protein content. The data so obtained
were subjected to analysis of variance, estimates of heterosis, heterobeltiosis,
economic heterosis and combining ability analysis (Griffing, 1956, Method-2,
Model-I). Analysis of variance revealed that mean squares due to parents,
hybrids and parents v/s hybrids were significant for most of the characters.
The experimental result for heterosis revealed that out of 15 hybrids,
seven hybrids recorded significant positive heterosis for yield per plant. Five
and eleven hybrids recorded significant positive heterobeltiosis and economic
heterosis for yield per plant respectively. The cross KWR-108 X DCP-92-3
showed the highest magnitude of heterosis and heterobeltiosis for yield per
plant, biological yield and 100 grain weight. The cross IPC-94-19 X IPC-94-94
showed highest significant positive economic heterosis yield per plant,
biological yield and pods per plant.
Estimates of GCA effects indicated that among parents IPC-94-19,
IPC-97-72 and MPJG-2000-108 were the good general combiner for yield per
plant and its attributing traits. Specific combing ability effects of crosses
revealed that seven crosses showed significant SCA effects for higher yield
per plant, biological yield and 100 grain weight. The cross, IPC-94-19 X DCP-
92-3 was the best specific combiner for plant height, 100 grain weight,
biological yield per plant, yield plant, harvest index and protein content of
seed. While, cross KWR-108 X DCP-92-3 was best specific combiner for yield
per plant, Biological yield per plant, harvest index, 100 grain weight, primary
branches per plant, plant height and days to maturity.
The cross viz., KWR-108 X DCP-92-3 and IPC-94-19 X DCP-92-3 were
identified and shall be handled by suitable breeding methods.
Description
Heterosis and combining ability analysis in Chickpea (Cicer arietinum L.)
Keywords
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Citation
Gadekar and Dodiya, 2009