Effect of host genotypes and cultural practices for the management of bacterial wilt in brinjal (Solanum melongena L.)

Effect of host genotypes and cultural practices for the management of bacterial wilt in brinjal (Solanum melongena L.)

2007

SB348.E5REP-0130

Bacterial wilt caused by Ralstonia solanacearum was the major disease of brinjal [aubergine] in winter under Tilla' (hillock) land condition of Tripura (India) during 2003-05. The disease affected all the 10 tested brinjal cultivars. Amongst them, 'Singnath' was the most resistant (nearly immune) with 0.93% wilt. 'BB-40', 'BB-64' and 'Green Round' were the other three resistant genotypes, while 'Jhum Begun' and 'Pongal Green' were highly susceptible. Soil disinfection with lime one month before transplanting and the use of Pseudomonas fluorescens as biological control agent were effective to minimize the bacterial wilt incidence in the field. In both cases, considerable numbers of plants (38.0% and 47.2%) wilted with the highly susceptible cultivar, 'Pongal Green', suggesting the need of host resistance in adopting any measure for the management of bacterial wilt in the field.

v.60(4):438-441, INDIAN PHYTOPATHOLOGY

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