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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.
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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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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 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(5): 147-159
DOI: https://doi.org/10.20546/ijcmas.2017.605.018


Effect of Moisture Stress on Key Physiological Parameters in Sunflower Genotypes
A. Geetha*, A. Sivasankar, P. Saidaiah and Lakshmi Prayaga
Department of Plant Physiology, College of Agriculture, ANGRAU, Rajendranagar, Hyderabad (A.P.) – 500 030, India
*Corresponding author
Abstract:

A study was conducted to investigate the effect of drought on physiological characteristics in twelve sunflower genotypes. Moisture stress treatment were imposed at flower bud initiation stage (irrigation withheld from 40 DAS to 60 DAS) whereas, Control plots were irrigated at 10 days intervals throughout the crop growth period. Results revealed that water stress showed repressing effect on Relative water content, Photosynthetic rate, leaf fluorescence, membrane leakage, chlorophyll content and specific leaf area in all the genotypes examined. Decline in Specific leaf area under water stress is considered as adaptation to water stress. However, genotypic variation was significant for characters studied. Genotypes SH-177, SH-491 and DSF-111 was considered as promising lines by maintaining higher RWC, photosynthetic rates, leaf fluorescence and SPAD chlorophyll meter readings wither lower membrane leakage and Specific leaf area.


Keywords: Drought, Sunflower, RWC, Photosynthetic rate, SPAD readings,
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How to cite this article:

Geetha, A., A. Sivasankar, P. Saidaiah and Lakshmi Prayaga. 2017. Effect of Moisture Stress on Key Physiological Parameters in Sunflower Genotypes.Int.J.Curr.Microbiol.App.Sci. 6(5): 147-159. doi: https://doi.org/10.20546/ijcmas.2017.605.018