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COMPARATIVE EFFICACY OF SOME OIL SEED CAKES AND EXTRACTS AGAINST ROOT-KNOT NEMATODE (MELOIDOGYNE GRAMINICOLA) INFECTION IN RICE

Jai Shankar Prasad, K. S. Varaprasad, Y. R. Rao, Ekta Rao, Muthu Sankar

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Abstract

Screen-house investigations were conducted to study the influence of seed cakes of castor, neem and Simarouba glauca, at 2.5 and 5 g/kg soil as soil application and seed extracts of S. glauca at 2.5 and 5% as root dip and soil drench treatment on the plant growth characters of rice and build up of root-knot nematode, Meloidogyne graminicola. Application of castor cake at 5 g/kg soil enhanced plant growth parameters even in the presence of the nematode. Fewest egg masses of M. graminicola were recorded after neem cake soil application at 5 g/kg soil, root dip + soil drench with 5% and 2.5% seed extract of Simarouba, and soil application of Simarouba cake at 5 g/kg soil.

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What this paper is about

Screen-house investigations were conducted to study the influence of seed cakes of castor, neem and Simarouba glauca, at 2.5 and 5 g/kg soil as soil application and seed extracts of S. glauca at 2.5 and 5% as root dip and soil drench treatment on the plant growth characters of rice and build up of root-knot nematode, Meloidogyne graminicola. Application of castor cake at 5 g/kg soil enhanced plant growth parameters even in the presence of the nematode. Fewest egg masses of M. graminicola were recorded after neem cake soil application at 5 g/kg soil, root dip + soil drench with 5% and 2.5% seed extract of Simarouba, and soil application of Simarouba cake at 5 g/kg soil.

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Available abstract

Screen-house investigations were conducted to study the influence of seed cakes of castor, neem and Simarouba glauca, at 2.5 and 5 g/kg soil as soil application and seed extracts of S. glauca at 2.5 and 5% as root dip and soil drench treatment on the plant growth characters of rice and build up of root-knot nematode, Meloidogyne graminicola. Application of castor cake at 5 g/kg soil enhanced plant growth parameters even in the presence of the nematode. Fewest egg masses of M. graminicola were recorded after neem cake soil application at 5 g/kg soil, root dip + soil drench with 5% and 2.5% seed extract of Simarouba, and soil application of Simarouba cake at 5 g/kg soil.

Key concepts: Graminicola, Neem cake, Agronomy, Nematode, Biology, Root-knot nematode, Horticulture, Nutrient

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COMPARATIVE EFFICACY OF SOME OIL SEED CAKES AND EXTRACTS AGAINST ROOT-KNOT NEMATODE (MELOIDOGYNE GRAMINICOLA) INFECTION IN RICE — Research Paper | ScholarLens