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 |
Plasma (fourth state of matter) is ionized gas composed of positive and negative ions, electrons, neutrals, molecules, photons and UV rays. Plasma seed treatment is an emerging new technique for seed quality control. Effect of cold plasma treatment on the control of Alternariasolani (Ellis and Martin) Jones and Grout causing early blight of tomato (Solanum lycopersicumL.) cultivar PKM 1 was studied. The seeds were exposed to various durations of non-thermal (cold plasma) atmospheric air pressure plasma treatment using radio frequency glow discharge technique at Institute for Plasma Research, Gujarat, India. The seeds pre-inoculated with A.solani were plasma treated with power of 20 W and 40 W for varied durations of 0, 5, 10, 15, 20, 25 and 30 minutes. Plasma treatment significantly reduced pathogen incidence and increased both germination and plant growth in comparison with the control. Experimental results indicated that all the treatments were significantly different and the seeds treated with 40 W for 30 minutes showed minimum percent disease incidence (0.0 %) with highest percent disease inhibition over control (100 %). It also recorded the highest plant biometrics viz., germination (96 %), root length (14.41 cm), shoot length (7.56 cm) and vigour index (2109).
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