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 |
Sterility mosaic disease (SMD) is the most destructive disease of pigeonpea in the Indian-subcontinent. SMD is caused by Pigeonpea sterility mosaic virus (PPSMV) and strain variability coupled with recent discovery of another emaravirus (PPSMV-II) made a complex etiology of this difficult to manage viral disease. A field study with phytohormones, chemicals and plant extract was conducted at Bengaluru and Patancheru locations to find out the best treatment for the management of SMD in pigeonpea. Results from the two field trials suggest three sprays of proporgite @ 0.15 %, recorded least SMD incidence of 2.00 per cent and effectively control the disease by 93.18 per cent with 80.33 per cent yield increase over control. Similarly, dimethoate @ 0.10 % also showed significant reduction of disease incidence by 92.86 per cent with 79.53 per cent yield increase. Spraying of salicylic acid (SA) @ 0.10 mM and gibberellic acid (GA) @ 250 ppm offered resistance to SMD infection with 40.67 and 42.69 per cent yield increase respectively over the contol. However, indole acetic acid (IAA) @ 250 ppm and Mirabilis jalapa bulb extract (yellow flower) @ 5.00 % sprays were not effective in the management of SMD.
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