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 |
Salt stress is one of the most important environmental stresses that adversely affect the crop growth and productivity worldwide. A pot experiment was conducted to examine the salt tolerance potential in different sorghum genotypes at CCS Haryana Agricultural University, Hisar (India) during kharif 2017. Sampling was made at fifty per cent flowering stage in response to different salinity levels (8 and 10 dS m-1). Control pots were irrigated with canal water. Days to fifty per cent flowering generally showed an increasing trend in most of the sorghum genotypes. Reversibly, results also revealed that as the salt stress increased plant height (147.75 to 55.87 cm), no. of leaves plant-1 (11.60 to 5.92), green leaf area (1374.03 to 499.41 cm2 plant-1), total fresh biomass (110.47 to 37.69 g), total dry weight (28.92 to 7.05 g) showed declining trend. Similarly, relative water content (RWC) (91.64 to 44.01%), total chlorophyll content (1.88 to 0.88 mg g-1) and chlorophyll content (SPAD units) were also decreased with the increasing levels of salt stress. Ionic contents like Na+ enhanced (34.88 to 48.69 mg g-1) with the increment of salt stress. However, K+ (36.53 to 15.01 mg g-1) and Ca2+ (0.65 to 0.25 mg g-1) followed the reverse trend. Sorghum genotypes viz. SPH 1798, SPH 1858 SS, SPH 1892, SPH 1893, SPH 1895, SPH 2458, SPV 2525, SPV 2527, SPV 2531, CSV 19SS, CSV 24SS, HJ 541, SSG 59-3 and HC 308 performed better under salt stress.
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