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 |
Pre-foliar spray with Parthenium hysterophorus, Lantana camara, Physalis, Melilotus albus, Datura stramonium, Solanum nigrum, Achyranthus aspera, Salix sp., Thevetia peruviana, Durenta erecta Polyanthia longifolia followed by challenge inoculation by Alternaria solani showed that among the treatment, Lantana camara treated plant representing minimum disease severity as 1.50, 5.33 and 8.12% at 2, 6 and 10 days of challenge inoculation. The potato plant treated with plant extracts as inducers sensitized to produce increased level of soluble protein and total phenol contents. The maximum increase of soluble protein content was found in Lantana camara treated potato leaves indicating 34.05, 36.65, 36.85 and 36.25 mg/g of fresh leaves against 18.33, 20.35 20.55 and 20.65 mg/g in case of control at 2, 4, 6 and 8 days of pathogen inoculation. Similarly, total phenol content was also found to be maximum in Lantana camara treated plant, representing 2.65 mg/g, 3.17 mg/g, 3.27 mg/g and 3.35 mg/g of fresh leaves at 2, 4, 6 and 8 days of pathogen inoculation. Correlation coefficient analysis revealed that there was negative correlation (r = -0.3074, -0.2560 and -0.2563) between disease severity and soluble protein content at 2, 6 and 10 days of treatment. Similarly, total phenol content also showed negative correlation (r = -0.1591, -0.5608 and -0.5495) with disease severity. It is therefore, suggested that, protection of potato plants against A. solani by Plant extracts as inducer might be due to stimulation of plants defense response.
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