Vol. 8, Issue 8, Part Q (2024)

Estimating the maydis leaf blight disease severity of maize in Southern Karnataka and identifying potential resistant varieties

Author(s):

M Monisha, Pankaja NS, Supriya S, Umashankar Kumar N, Mahadeva J and Mummineni Sunitha

Abstract:
A roving survey was carried out in maize growing regions of Southern Karnataka (Mandya, Hassan, Mysuru and Chamarajanagar districts) in farmer’s field during October 2021 and also 69 maize inbred lines and 19 hybrids were screened under field conditionsagainst Bipolaris maydis during Kharif 2021. Among the four districts surveyed, Hassan district recorded highest average disease severity of 30.93% Mysuru district recorded lowest average disease severity of 19.72. Among inbreds and hybrids screened eight of them were resistant with mean PDI ranging from 17.78-31.11% and AUDPC ranging from 435.56-700.00. 47 of them were moderately resistant with mean PDI ranging from 35.56-53.33% and AUDPC ranging from 701.00-1190.00. 22 of them were moderately susceptible with mean PDI ranging from 57.78-75.56% and AUDPC ranging from 1191.00-1820.00 and 11 of them were susceptible with mean PDI ranging from 77.78-97.78% and AUDPC ranging from 1821.00-2372.22.

Pages: 1316-1319  |  295 Views  142 Downloads

How to cite this article:
M Monisha, Pankaja NS, Supriya S, Umashankar Kumar N, Mahadeva J and Mummineni Sunitha. Estimating the maydis leaf blight disease severity of maize in Southern Karnataka and identifying potential resistant varieties. Int. J. Adv. Biochem. Res. 2024;8(8):1316-1319. DOI: 10.33545/26174693.2024.v8.i8q.1981