Vol. 11, Issue 11 (2022)

Author(s):
Banothu Chandrashekar, Yogendra Singh and BK Namriboi

Abstract:
The sorghum crop is believed to have first been cultivated in Africa, it is grown primarily as a food, feed source, and also as staple food source in many countries, particularly in arid regions of the world. Zonate leaf spot of sorghum occurs throughout the wet sorghum growing regions of the world, it damaged up to 90% of the photosynthetic leaf area under humid and cloudy weather conditions in India. Out of fifty varieties screened, four varieties viz., Pant Chari-2, Pant Chari-3, CSH-40, and PC-121 showed moderate resistance to zonate leaf spot, whereas six varieties CSV-35F, SSU-74, 33MF, SRF-280, PC-1001, and CO(FS)-29 were moderately susceptible. Eighteen varieties Pant Chari-5, UP-Chari-1, UP-Chari-2, Rajasthan local, UTFS-109, UTFS-111, SGL-87, SSG-59-3, SSV-74, Rampur local, CSV-21F, CSV-10, CSV-15, CSV-19SS, CSV-30F, PC-23,HC-171, and HC-260 were susceptible and highly susceptible varieties Pant Chari-1, Pant Chari-4, Pant Chari-6, Pant Chari-7, Pant Chari-8, Pant Chari-9, Pant Chari-11, UP-Chari-14, UPFS(PC-7), MP-Chari, Nizamabad, UTFS-108, UTFS-121, UTFS-122, RS-673, UTMC-583, UTMC-580, UTMC-581, CSV-30MF, UTFS-110, CSV-24SS, and CSV-673. None of the varieties has immune nor completely resistant to G. sorghi. Moderately resistant varieties can be recommended for growers to reduce yield loss and also escape residual effects in fodder sorghum.