National Academy of Agricultural Sciences (NAAS)
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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 |
Drought is the major environmental stress that affects the photosynthetic process of the plants. Chlorophyll fluorescence analysis is one of the robust techniques to understand the activity of PS II photochemistry in rice under drought. Fourteen rice genotypes including two contrasting controls (Sahabhagidhan and IR 64 as tolerant and susceptible controls respectively) were used to evaluate the PSII activity. The drought was imposed at the flowering stage by maintaining stressed pots at 50% field capacity. Results showed that drought tolerant genotypes i.e. Parijata, IC 516130, IC 516008 and IC 516149 possessed higher value for chlorophyll fluorescence parameters such as maximum Fluorescence (Fm), maximum quantum yield of PSII photochemistry (Fv/Fm), maximum primary yield of PSII photochemistry (Fv/F0), and these values were strongly correlated with total chlorophyll content, RWC, and LWP. Overall, this experiment signifies the suitability of chlorophyll fluorescence parameters for phenotyping of genotypes for drought tolerance.
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