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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(10): 2676-2684
DOI: https://doi.org/10.20546/ijcmas.2018.710.311


Individual Heat and Combined Heat Drought Stresses in Wheat: Variation in NDVI and Canopy Temperature
Gurumurthy1*, Ajay Arora1, Basudeb Sarkar2, Harikrishna1, V.P. Singh1,S.K. Meena3, Prakash Kumar4 and P.K. Singh1
1Indian Agricultural Research Institute, New Delhi, India
2Central Research Institute for Dryland Agriculture, Hyderabad, Telangana, India
3Indian Institute of Pulses Research, Kanpur, India
4Indian Agricultural Statistics Research Institute, New Delhi, India
*Corresponding author
Abstract:

The present study was conducted to determine genotypic variations for normalized difference vegetation index (NDVI) and canopy temperature (CT) in wheat under terminal heat and combined heat and drought stresses. Forty-four wheat genotypes were evaluated under late sown with irrigation (heat stress) and without irrigation (combined heat and drought stress) in an environment with average temperatures of 28.6°C during the growing season and 30.62°C during the grain filling stage. Moisture under heat stress range from 14.84 to 19.12 % whereas under combined stress it was 5.08 to 10.49 %. The mean grain yield was 106.7 and 123.4 gm/ plot under heat stress and combined stress respectively. The mean CT 24.1 and 29.40C was under heat stress and combined stress respectively. The mean NDVI 0.57 and 0.50 under heat stress and combined stress respectively. Overall, under combined stress there was a 13 %decrease in NDVI, 18% increase in the CT and 13.5% increase in the yield than the heat stressed genotypes. The negative correlation between NDVI and yield whereas positive correlation between CT and grain yield under combined stress. The NDVI and CT are the two physiological traits to measure high yielding genotypes under combined stress.


Keywords: Heat stress, Combined stress, NDVI, Canopy temperature
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How to cite this article:

Gurumurthy, S., Ajay Arora, Basudeb Sarkar, Harikrishna, V.P. Singh, S.K. Meena, Prakash Kumar and Singh, P.K. 2018. Individual Heat and Combined Heat Drought Stresses in Wheat: Variation in NDVI and Canopy Temperature.Int.J.Curr.Microbiol.App.Sci. 7(10): 2676-2684. doi: https://doi.org/10.20546/ijcmas.2018.710.311