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Reference Report for IND82089702
Title:Field observation on the attack of stem fly on different cultivars of soybean Melanagromyza.
Authors:Ali, M.I.
Source:Bangladesh J. Agric. Sci. 1981, 8(1):83-84
Abstract:Stem fly, Melanagromyza sp. has been emerging as a major pest of soybean at the Regional Agricultural Research Station, Ishurdi, Pabna of Bangladesh during the past few years. The present study was undertaken at the research station during the three consecutive seasons of Rabi and Kharif with six recommended cultivars of soybean. The percentage of infestation was calculated by the total number of healthy and infested plants of each plot and replications. Finally the average date were calculated. From the observations of the three consecutive seasons it revealed that cultivar Forest showed highest (25.57) percentage of infestation followed by Davis (21.94), Clarck-63, (21.09), Williams (20,96), Lee-74 (15.48) and the lowest by Bragg (10.30). In most cases, the Kharif crops showed higher infestation than Rabi crops and on an average the percentage of infestation recorded was 19.24






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