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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
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Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(7): 2590-2597
DOI: https://doi.org/10.20546/ijcmas.2019.807.319


Genetic Variability and Correlation Studies in Chickpea under Timely and Late Sown Environments
A.G. Vijayakumar1*, H.L. Nadaf2, V.B. Nargund3 and B.C. Patil4
1Department of Genetics and Plant Breeding, College of Agriculture, UAS, Dharwad, India
2Director of Research, UAS, Dharwad, India
3Department of Plant Pathology, CoA, Dharwad, India
4Department of Crop Physiology, CoA, Dharwad, India
*Corresponding author
Abstract:

Chickpea is a cool season pulse and suffers severe yield losses when exposed to higher temperatures during reproductive phase. Stable chickpea production will depend on the release of new cultivars with improved adaptation to drought and high temperature. Twenty five breeding lines of two crosses JG 11 x JG 14 and JAKI 9218 x JG 14 were assessed under timely and late sown situations. High variability was observed for majority of the traits in both the seasons. In late sown condition high GCV and PCV was recorded for days to fifty per cent podding, number of pods, yield per plant, hundred seed weight, pollen viability and per cent membrane leakage at 50 days. Ample variability available for these traits can be exploited by direct selection. In general the late sown crop matured early due to restricted reproductive period and hastened maturity. Higher heritability for days to first and fifty per cent podding, days to maturity, pollen viability and hundred seed weight was noticed under late sown environments. Higher estimates of GCV (%), heritability and genetic advance as per cent of mean were noticed for plant height (cm), first pod height (cm), number of pods per plant, yield per plant (g/plant) and hundred seed weight (g). Occurrence of high estimates of heritability coupled with genetic advance as per cent of mean for these traits suggest that these traits can be considered as favourable attributes for improvement through selection. Number of pods per plant was positively and significantly associated with number of branches per plant (0.470), plant height (0.509) and first pod height (0.493) signifying that early maturing genotypes with better canopy spread are capable of escaping heat stress under late sown environment. Hundred seed weight (g) was positively and significantly associated with number of pods per plant (0.480) and days to maturity (0.666). Important attributes under late sown environment were plant height, number of pods per plant, hundred seed weight and per cent membrane leakage at 50 days.


Keywords: Chickpea (Cicer arietinum L.), Genotypes, South America
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How to cite this article:

Vijayakumar, A.G., H.L. Nadaf, V.B. Nargund and Patil, B.C. 2019. Genetic Variability and Correlation Studies in Chickpea under Timely and Late Sown Environments.Int.J.Curr.Microbiol.App.Sci. 8(7): 2590-2597. doi: https://doi.org/10.20546/ijcmas.2019.807.319