Indian Journal of Nematology
Year : 1987, Volume : 17, Issue : 1
First page : ( 67) Last page : ( 71)
Print ISSN : 0303-6960.

Interaction between Meloidogyne incognita and Pseudomonas solanacearum on brinjal

Swain P.K., Rath J.C., Mishra S.K.*

Department of Nematology, College of Agriculture, O.U.A.T., Bhubaneswar-751 003, India.

* Department of Plant Pathology, O.U.A.T.

Abstract

The combined pathogenic effects of Meloidogyne incognita and Pseudomonas solanacearum on a resistant brinjal cultivar (Pusa purple cluster) provided synergistic effect towards the development of wilt symptoms and influenced different plant growth parameters such as shoot length. shoot weight, root length and root weight. production of 2.8 per cent wilt in plants occurred at tooo larvae + 47 per cent transmittance and the other at 2000 larvae + 85 per cent transmittance (bacterial sespension) levels of inoculum. Although the results of nematode and bacteria on shoot length showed a significant trend, their combined insignificant differences emphasised the inhibitory effect of one on the other in affecting the host or may be the infection of nematode rendered the plant unsuitable for bacterial infection. A significant difference in shoot weight, reduction in root length and a decrease in root weight over control was observed. Population of nematodes present inside the soil after the harvesting of plants increased at different levels of initial nematode inoculum with three different levels of bacterial inoculum.

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Key words

Meloidogyne incognita, Pseudomonas solanacearum, interaction.

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