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本研究分析了广东省湛江市和电白县花生锈病最终病情严重度和气象因子的回归关系,结果表明:4月下旬至5月下旬的旬平均气温X_1,旬平均相对湿度X_2和日平均降雨量X_3,对春花生的锈病最终病情严重度Y有显著影响,9月中旬至10月中旬的相应气象因子影响秋花生的锈病最终病情严重度(α=0.005)。这些因素与病情有如下关系: Y=(-2.70884×10~(-7)expX_1+2266970.51lnX_2+5.516×10~(3)expX_3-9501060.363)(1/3)
This study analyzed the regression relationship between the severity of peanut rust and the meteorological factors in Zhanjiang City and Dianbai County, Guangdong Province. The results showed that the average daily temperature X_1, the average relative humidity X_2 and the average daily rainfall from late April to late May The amount of X_3 had a significant effect on the final disease severity Y of spring peanut. The corresponding meteorological factors from mid-September to mid-October affected the final severity of autumn peanut rust (α = 0.005). These factors and the disease have the following relations: Y = (- 2.70884 × 10 ~ (-7) expX_1 +2266970.51lnX_2 + 5.516 × 10 ~ (3) expX_3-9501060.363) (1/3)