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Screening of F1 Hybrids Generated through Diallel Mating Design for Bacterial Wilt Resistance in Brinjal under Mid-Hill Conditions of Himachal Pradesh
Bacterial wilt is the most destructive disease in the tropical, subtropical, and temperate regions of the world, causing a heavy economic loss in eggplant. The chemical control of the disease is not effective and the cultivation of bacterial wilt resistant varieties is the only solution to overcome the disease, but cultivated resistant varieties are gradually becoming susceptible to the disease. Thus, an experiment was conducted to screen out twenty F s developed through diallel mating design along with parents viz., Res-1, Res-2, H-8, Arka 1 Nidhi, and Arka Keshav for bacterial wilt resistance under mid-hill conditions of Himachal Pradesh over the seasons. These were categorized according to the Sitaramiah scale (1981) as the observation was recorded on plant survival. The cross combinations were found immune, highly resistant, and moderately resistant to bacterial wilt and can be utilized to develop resistant cultivar(s) through crop improvement.
Keywords
Eggplant, Diallel, Bacterial Wilt, Categorization.
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