Biochemical changes induced by compost tea and seaweed formulation spray inhibiting Alternaria leaf blight of sunflower
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Biochemical changes induced by compost tea and seaweed formulation spray inhibiting Alternaria leaf blight of sunflower
Authors
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M SHADAB
University of Agricultural Sciences, GKVK, Bengaluru-560 065
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K KHATIB
University of Agricultural Sciences, GKVK, Bengaluru-560 065
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K KARUNA
University of Agricultural Sciences, GKVK, Bengaluru-560 065
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C P MANJULA
University of Agricultural Sciences, GKVK, Bengaluru-560 065
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DATTATREYA
University of Agricultural Sciences, GKVK, Bengaluru-560 065
Keywords:
Alternaria, Flavonoids, Compost tea, Peroxidase, Phenolics, Superoxide dismutaseAbstract
Compost tea and seaweed extract were tested against Alternaria blight of sunflower. Foliar spray of compost tea
(1:10) @ 30, 45 DAS and propiconazole @ 1 ml/l at 60 DAS was effective in controlling the Alternaria blight of
sunflower with least disease severity which was on par with foliar spray of seaweed formulation at 30, 45 DAS and propiconazole at 60 DAS. The defense enzymes such as superoxide dismutase, peroxidase, secondary metabolites such as phenolics and flavonoids increased in foliar spray of compost tea and also in propiconazole treated plants.
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References
Balasubramanyam N and Kolte S J 1980. Effect of Alternaria blight on yield components, oil content and seed quality of
sunflower. Indian Journal of Agricultural Sciences, 50: 701-706.
Haggag W M and Saber M S M 2007. Suppression of early blight on tomato and purple blight on onion by foliar sprays
of aerated and non-aerated compost teas. Journal of Food, Agriculture and Environment, 5(2): 302-309.
