• K.V.Madhusudhan
• C. Sudhakar

To select physiological tests for the screening of drought tolerance in groundnut cultivars, we have studied the changes in cell membrane stability (CMS), chlorophyll stability index (CSI), total chlorophyll content and malondialdehyde (MDA) content in two high yielding cultivars of groundnut (Arachis hypogaea L. K-134 and JL-24, drought tolerant and drought sensitive respectively) under different regimes of water stress. The CMS and CSI were significantly decreased in both cultivars under water stress conditions. However, the per cent decrease was relatively less in K-134 than in JL-24. Total chlorophyll content decreased during water stress conditions at all levels of stress in both cultivars, but a more pronounced decrease was observed in JL-24 than in K-134. The level of lipid peroxidation as indicated by MDA formation was greater in cultivar JL-24 than in K-134. The magnitude of physiological responses was dependent on stress severity and varied between the cultivars. These results may contribute to identify useful physiological traits for breeding programs concerning drought tolerance in groundnut.

Groundnut, Cell membrane stability, Chlorophyll, MDA, Drought tolerance

"CELL MEMBRANE STABILITY AND CHLOROPHYLL STABILITY INDEX AS SELECTION CRITERIA FOR SCREENING OF DROUGHT TOLERANCE IN GROUNDNUT CULTIVARS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 1, page no.161-163, January-2018, Available :http://www.jetir.org/papers/JETIR1801342.pdf

"CELL MEMBRANE STABILITY AND CHLOROPHYLL STABILITY INDEX AS SELECTION CRITERIA FOR SCREENING OF DROUGHT TOLERANCE IN GROUNDNUT CULTIVARS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 1, page no. pp161-163, January-2018, Available at : http://www.jetir.org/papers/JETIR1801342.pdf