Abstract

Bacterial wilt (BW), caused by Ralstonia solanacearum, is a major limiting factor for eggplant (Solarium melongena) production in the tropics and subtropics. The pathogen is difficult to control because it is soilborne and has a wide host range. Planting resistant varieties is the most efficient and simplest method of disease control. Resistance sources to bacterial wilt in eggplant have been identified and resistant breeding lines in eggplant have been developed, mainly in India (Goth et al. 1991; Sadashiva et al. 1993). At the Asian Vegetable Research and Development Center (AVRDC), germplasm of cultivated eggplant has been collected worldwide. In order to compare BW resistance levels among cultivated eggplants and to identify suitable resistance sources for breeding programs, an intensive screening was conducted at AVRDC. Here we report the screening results and horticultural characteristics of selected resistance sources.

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