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1984—1989年于济南研究诸因素对病害流行的作用。研究表明,大豆品种抗性和初始毒源数量为病害流行的主导因素。大豆幼苗期最感病,开花期为发病高峰。在春大豆苗期温度偏高雨量偏少及夏大豆苗期温度偏低雨量偏多的情况下,有利花叶病发生。对13种蚜虫进行饲毒接毒试验,证明桃蚜(Myzus persicae)、豆蚜(Aphis craccivora)和大豆蚜(Aphisglycines)可传毒,对病害田间流行有重要影响。对5年的16组数据应用IBM微机进行逐步回归和通径分析,组建发生预测模型。
From 1984 to 1989 in Jinan to study the role of various factors on the epidemic. Studies have shown that soybean varieties resistance and the initial number of sources of disease epidemic dominant factor. Soybean seedling susceptible, flowering peak incidence. In spring soybean seedling temperature is too high and low rainfall and summer soybean seedling temperature is too low, the case of excessive rainfall, mosaic disease occurs. Thirteen kinds of aphids were poisoned and poisoned, which proved that Myzus persicae, Aphis craccivora and Aphisglycines could be transmitted, which had a significant impact on the field epidemic. On the five years of 16 sets of data using IBM microcomputer for stepwise regression and path analysis, the formation of a predictive model.