Effect of Different Dose and Application Methods of Paecilomyces lilacinus (Thom.) Samson against Root Knot Nematode, Meloidogyne incognita (Kofoidand White) Chitwood in Okra

Raja Kannan, Renganathan Veeravel


The biocontrol potential of Paecilomyces lilacinus was evaluated in field conditions in two seasons during 2005-2008 at Annamalainagar and Vallambadugai of Cuddalore district of Tamilnadu, India. In the field evaluation of different doses and application methods of P. lilacinus viz., seed treatment, seedling treatments, soil application treatments and the integration treatments produced mixed results on the growth of okra in both Annamalainagar and Vallambadugai. In two field trials of okra at two locations, shoot length, shoot weight and root length were significantly increased in mixture treatments compared to individual treatments, principally combination of seedling treatment (10g/l water) + soil application treatment (5.0 kg/acre) documented maximum shoot length (60 and 90 DAS), shoot weight (90 DAS) and root length (90 DAS) and they were positively correlated with fruit yield of okra.

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DOI: https://doi.org/10.5539/jas.v4n11p119

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