Screening of different rice genotypes against major diseases under old alluvial zone of West Bengal

Abstract

A field experiment to assess the varietal susceptibility or resistance against the diseases was conducted under natural condition with seven treatments and three replications during Kharif 2015 and 2016. Per cent disease incidence and disease severity was recorded from the experimental plot based on different symptoms produced by different pathogens. It was found that sheath blight incidence (52.60%) and severity (24.19%) was highest in MTU-7029. Swarna Sub-1 (80.32%) recorded the highest blast incidence but the severity was highest in MTU-1079 (2.54%). Except all varieties under trial incidence (5.90%) and severity (1.04%) of false smut was recorded in BPT-5204.