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 |
Sunflower crop suffers from many diseases of which Alternaria blight has been considered as a potentially destructive disease. The objective of this study was in vitro evaluation and to study field efficacy of compost tea and seaweed formulation on leaf blight of sunflower. In vitro evaluation of compost tea revealed that maximum inhibition of A. helianthi was recorded in compost tea at 25 per cent (60.5%) followed by compost tea at 20 per cent (58.5%) and 15 per cent (53.8%). In field conditions, foliar spray of compost tea at the rate of 1:10 ratio at 30, 45 DAS and propiconazole at 1mlL-1 at 60 DAS increased the growth parameters like plant height (245.93 cm), stem girth (4.60 cm), number of leaves (9.35) and chlorophyll content (42.97). Foliar spray of compost tea with propiconazole was effective in controlling the Alternaria blight of sunflower with least disease severity (10.37%) and higher yield (2201.41 Kg ha-1) which was on par with foliar spray of seaweed formulation (LBD-1) at 30, 45 DAS and propiconazole at 60 DAS with disease severity 12.32 per cent and seed yield of 1928.04 Kg ha-1.
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