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 |
A laboratory experiment was conducted during 2020 at Agriculture Research Station, Crop Physiology division, Dharwad, to screen the cotton verities to water stress condition for Seed germination and Seedling growth. The study consists of eight cotton varieties viz., PA-810, CDP-1652, DB-1602, SCS-1061, DLSa-17, Sahana, ARBH-813 and Suvin were evaluated for drought tolerance using PEG-6000 water stress at germination stage. The genotypes were subjected to different osmotic potentials 0%, 5%, 10%, 20% and 25% (0.0MPa,-0.05 MPa,-0.148 MPa,-0.295 MPa,-0.491 MPa,-0.735 MPa respectively) by slanting glass plate technique. The genotypes were evaluated for percent seed germination and seedling vigour traits at 12th and 18th day showed maximum concentration of PEG-6000 for the germination is 20% and shoot growth was inhibited at 20% PEG-6000 in all genotypes. As the concentration increases there was an increase in root to shoot ratio. In conclusion the genotypes which found tolerant to the increased osmotic potential were PA-810, CPD-1652 DB-1602 and DLSa-17 whereas SCS-1061, Sahana, ARBH-813 and Suvin were found as drought sensitive genotypes.
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