Studies on the Density of Soybean Aphids in Different Cultivars, Planting Dates and Spacings
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In order to evaluate the fluctuation of the soybean aphid (Aphis glycines Matsumura) population, six leading soybean cultivars were planted on five different planting dates with different plant densities. The survey of aphid population and climate condition was made from June through September in 1978. According to the differences of planting dates and plant density the soybean aphid populations were varied, and varietal response to the aphid was significantly different. Counting of aphid infestation on the top third trifoliate leaf seemed to be efficient for the estimation of soybean aphid population.
Originating text in Korean.
Citation: Chung, K. H., Kwon, S. H., Lee, Y. I. (1980). Studies on the Density of Soybean Aphids in Different Cultivars, Planting Dates and Spacings. Journal of the Korean Society for Crop Science, 25(3), 35-40.
Originating text in Korean.
Citation: Chung, K. H., Kwon, S. H., Lee, Y. I. (1980). Studies on the Density of Soybean Aphids in Different Cultivars, Planting Dates and Spacings. Journal of the Korean Society for Crop Science, 25(3), 35-40.
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Except where otherwise noted, this item's license is described as Copyright for this item remains with the original copyright holder. Permission was obtained from the copyright holder to translate into English, where applicable, and to host the full-text content.
