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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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Email : editorijcmas@gmail.com / submit@ijcmas.com
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(1): 668-678
DOI: https://doi.org/10.20546/ijcmas.2019.801.075


Association Study of Morphological and Physiological Traits with Yield in Groundnut Genotypes under Terminal Drought Condition
Mahesh R. Hampannavar1* and Hasan Khan2
1Department of Genetics and Plant Breeding
2Groundnut Breeding, MARS, Raichur, University of Agricultural Sciences, Raichur, College of Agriculture, Raichur – 584 104, India
*Corresponding author
Abstract:

Groundnut (2n=4x=40) is an important oilseed crop. India has high both in area and production of groundnut, but low in productivity. The low productivity due to many constraints among them important one is drought, in that terminal drought is a most damaging one. Development of drought tolerant varieties is only a cost-effective method to mitigate the drought effect on agriculture. But, the studies under terminal drought conditions in association with yield and some surrogate/physiological traits were limited. Hence, keeping these in view, present correlation study was conducted by considering 12 morphological and five surrogate traits in 144 groundnut genotypes. The dry pod yield had a positive significant correlation with the number of mature pods, kernel yield at both phenotypic (0.493, 0.655) and genotypic (0.854, 0.922) level under end season drought. Harvest Index (%) had a strong significant positive correlation with dry pod yield in terminal drought condition at both genotypic (0.537) and phenotypic level (0.513). the rest of surrogate traits like relative water content, canopy temperature, specific leaf area, and SPAD chlorophyll meter reading had the nonsignificant association with dry pod yield under end season drought expect at RWC and SCMR at 80 days after sowing.


Keywords: Terminal drought, Surrogative traits, Correlation, Genotypic and phenotypic level
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How to cite this article:

Mahesh R. Hampannavar and Hasan Khan. 2019. Association Study of Morphological and Physiological Traits with Yield in Groundnut Genotypes under Terminal Drought Condition.Int.J.Curr.Microbiol.App.Sci. 8(1): 668-678. doi: https://doi.org/10.20546/ijcmas.2019.801.075