Screening of sugarcane genotypes for resistance against sugarcane early shoot borer, Chilo infuscatellus Snellen ( Vol-2,Issue-6,November - December 2017 )
Author: Umashankar H.G., Patel V.N., Nagaraja T., Vijaykumar L., Sugeetha. S
Keyword: Chilo infuscatellus, Early shoot borer, Genotypes, Per cent incidence, Resistance.
Abstract: In vivo experiment was conducted to screen fifty six genotypes for resistance to early shoot borer, Chilo infuscatellus Snellen at Zonal agricultural research station, V.C farm, Mandya during 2014-2015. The per cent incidence of ESB at different days after planting was varied among fifty six screened genotypes. The highest per cent incidence was recorded at 60 DAP (0.00 to 41.29) followed by at 30 DAP (0.00 to 20.15) and the per cent incidence at 90 DAP ranged from 0.00 to 14.24 and lowest per cent incidence was recorded at 120 DAP (0.00 to 4.40). Based on the cumulative incidence, 47 genotypes were categorized as less susceptible to C. infuscatellus. Nine genotypes were found moderately susceptible to C. infuscatellus. However, among less susceptible genotypes lowest cumulative incidence of 0.00 per cent was recorded in genotypes, 09-60-06. Whereas highest cumulative incidence of 29.86 per cent was recorded in moderately susceptible genotype, 10-38-06.
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