Abstract

In order to clarify the mode of inheritance of resistance to bacterial wilt disease, gene analysis was performed with fifteen crosses among Japanese domestic, burley and flue-cured tobacco cultivars by the artificial inoculation method using temperature tank. Presence of Rps gene controlling the resistance was made clear, and the existence of polygenes and the close association of resistance with white burley character were inferred. By the combination of these genetic factors, the hereditary phenomena in wilt resistance of domestic cultivars may be approximately explained.

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