Vol. 11, Issue 7 (2022)

Author(s):
Bintu Dagar, Vinod Kumar Malik, Rakesh Kumar, Tarun Verma, KS Ahlawat, Pavitra Kumari, RS Chauhan, Mamta Khaiper and Preety Verma

Abstract:
The present study entitled “Studies on Magnaporthe grisea incitant of blast disease of pearl millet [Pennisetum glaucum (L.) R. Br.]” was conducted during the kharif 2019 at research farm, Department of Plant Pathology, CCS Haryana Agricultural University, Hisar. Pearl millet is a rainfed crop which. Can survive well in the rainfall as 250 mm on relatively poor soils. Pearl millet blast disease is a devastating. Fungal disease causing considerable yield losses. Blast of pearl millet incited by Magnaporthe grisea is the most widespread and destructive disease of pearl millet in India and other pearl millet growing area of the world. Host physiology particularly host metabolites get. Disturbed due to attack of Magnaporthe grisea. Present study indicated significant. Change in phenolic compounds, chlorophyll compounds and sugars in resistant, moderately resistant and susceptible genotypes. The chlorophyll a, chlorophyll b, total chlorophyll and flavanol content were. Decrease at each stage in all the 3 genotypes continuously. Carotenoid and total soluble sugar content was higher in all the 3 genotype at 25 DAS but decrease upto 35 DAS but further increase at 45 DAS in all the genotypes. Maximum phenol content was recorded in (18-0426) genotype at 45 DAS stage and orthodihydroxy phenol was in (118-0035) genotype at 45 DAS.