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2020•Unpublished venueOpen access

Evaluation of Plant Extracts against Alternaria Blight of Linseed (Linum usitatissimum L.)

Vivek Singh

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Abstract

Aqueous leaf extracts (2.0%) of fifteen locally available plants were evaluated in vitro against Alternaria lini, the causal organism of leaf and bud blight in linseed. Maximum inhibition was recorded with Azadirachta indica (67.7%) followed by Lawsonia inermis (63.0%), Datura metel (39.2%), Calotropis procera, Lantana camara (36.6%) and Citrus sp. (28.1%). Others had either low or no fungitoxic effect. The inhibitory effect was higher (97.7 to 50.2%) at higher (5.0%) concentration. Foliar spray of six plant extracts controlled the disease significantly and enhanced grain yield (48.5 to 9.4%), in the same order under field conditions.

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What this paper is about

Aqueous leaf extracts (2.0%) of fifteen locally available plants were evaluated in vitro against Alternaria lini, the causal organism of leaf and bud blight in linseed. Maximum inhibition was recorded with Azadirachta indica (67.7%) followed by Lawsonia inermis (63.0%), Datura metel (39.2%), Calotropis procera, Lantana camara (36.6%) and Citrus sp. (28.1%). Others had either low or no fungitoxic effect. The inhibitory effect was higher (97.7 to 50.2%) at higher (5.0%) concentration. Foliar spray of six plant extracts controlled the disease significantly and enhanced grain yield (48.5 to 9.4%), in the same order under field conditions.

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Available abstract

Aqueous leaf extracts (2.0%) of fifteen locally available plants were evaluated in vitro against Alternaria lini, the causal organism of leaf and bud blight in linseed. Maximum inhibition was recorded with Azadirachta indica (67.7%) followed by Lawsonia inermis (63.0%), Datura metel (39.2%), Calotropis procera, Lantana camara (36.6%) and Citrus sp. (28.1%). Others had either low or no fungitoxic effect. The inhibitory effect was higher (97.7 to 50.2%) at higher (5.0%) concentration. Foliar spray of six plant extracts controlled the disease significantly and enhanced grain yield (48.5 to 9.4%), in the same order under field conditions.

Key concepts: Linum, Azadirachta, Blight, Calotropis procera, Lantana camara, Datura, Alternaria, Lawsonia inermis

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