Effects of Aphid Population Dynamics and Damage Period on Soybean Yield
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We studied the effects of aphid density and damage period on soybean yield by controlling the damage period and level. Results of 1988 and 1989 showed that soybeans have a remarkable ability of compensation and tolerance to aphid damage. Yield losses caused by aphids were related to aphid density, the period of aphid development, and the coincidence between the damage period and soybean developmental stage. In the early stage, minor or heavy damage did not cause yield reduction if aphids were controlled immediately. The result was similar if aphids appeared in the fields later. However, continued and heavy injury caused 20-30% yield loss.
Originating text in Chinese.
Citation: Dai, Zhonglian, Fan, Jun. (n.d.). Effects of Aphid Population Dynamics and Damage Period on Soybean Yield. Journal of Shenyang Agricultural University, 22(2), 135-139.
Originating text in Chinese.
Citation: Dai, Zhonglian, Fan, Jun. (n.d.). Effects of Aphid Population Dynamics and Damage Period on Soybean Yield. Journal of Shenyang Agricultural University, 22(2), 135-139.
Keywords
Soybean, Aphid, Tolerance to aphid, Soybean yield
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