Indian Journal of Nematology
Year : 1981, Volume : 11, Issue : 1
First page : ( 112) Last page : ( 112)
Print ISSN : 0303-6960.

Damage caused by Meloidogyne incognita on brinjal

Kurien Susannamma, Kuriyan K. John

College of Agriculture, Vellayani.

Presented at Nematology Symposium held at Coimbatore, India in February, 1981

Abstract

The nature and extent of damage caused by root-knot nematode, M. incognita to brinjal at different inoculum levels of 10, 100, 500, 1000, 5000 and 10,000 larvae per plant was studied, in pot culture.

There was a significant reduction of 14.8 to 64.6% in number of leaves; 4.9 to 32.6% in shoot length; 5.9 to 61.2% in weight of shoot; 5.2 to 34.9% in wight of root; 20.9 to 82.1% in yield and 21.1 to 89.1%, in mean weight of brinjal, by the different inoculum levels of the root-knot nematode, within 108 days of inoculation. The total number of root-knots present in each plant increased from 148.5 at the inoculum level of 10 to 412.3 at the inoculum level of 10,000 larvae. The soil population of M. incognita also increased from 28.0 to 243 per 100 ml of soil. It may be infered that M. incognita is positively involved in the unthrifty growth of the brinjal plant and the consequent reduction in yield.

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