Evaluation the yield losses of promising line soybeans which infested by sweetpotato whitefly (Bemisia tabaci (Gennadius))
1992
Sawang Kadkao | Bunya Anusonratchada | Phiraphat Phungcharoen (Chiang Mai Field Crops Research Center (Thailand))
To evaluate the yield Loss of soybean which infested by sweetpotato whitefly. The study was investigated at Srisamrong Field Crop Research Station in 1988-89. The experiment was designed in Split-plot in 1988 and Split-split-plot in 1989. Result show that, the amouth of sweetpotato whitefly in 1988 is low, average 2 adult per 1 meter row of soybean. Number of sweetpotato whitefly adult in SK.1 less than other varieties, and SK.1 give the highest yield 366 kg/rai. Because of lacking rainfall in 1989, almost damage of soybean was cause by drought eventhough in the farmer field.
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