Interactive Effect of Vesicular Arbuscular Mycorrhizae (Vam) with Radopholus Similis on Coconut Seedlings.
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2007-02
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Significant increase in lamina width and leaf area was recorded in plants that received mycorrhizae alone. Plants inoculated with nematodes alone showed maximum reduction in growth, fresh shoot and root weights which proves the pathogenic effect of R. similis on coconut seedlings. Increase in shoot weight, root weight and decrease in lesion indices was noticed in plants inoculated with mycorrhizae prior to nematode. Prior inoculation of VAM was found to be more effective against R. similis than simultaneous inoculation of VAM and nematode. Eventhough root infection and spore production of VAM was slightly reduced in nematode inoculated plants, the lesion index and root nematode population could be successfully lowered with mycorrhiza infection. A mixture of VAM consisting of multiple endophytes viz. Acaulospora bireticulata, Glomus fasciculatum, G. macrocarpum, G. mosseae, G. versiforme, Sclerocystis rubiformis and Scutellospora nigra was found effective in improving the plant growth and reducing the R.similis population infesting coconut seedlings.
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Proceeding of the third international symposium of afro-asian society of nematologists 1998 p-106-110