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期 刊 ：植物保护学报 1999年

关键词：泽漆；小麦；密度；产量损失；药物防除；

Keywords:Euphorbia helioscopia, wheat, density, yield loss, economic threshold,

摘 要 ：为明确泽漆的发生对小麦产量及其构成因素的影响，人工接种结合田间自然出草进行泽漆不同密度对小麦为害损失试验。１９９５－１９９６年研究结果表明，泽漆发生密度和小麦产量及穗数损失率的最佳数学模型均直线函数关系，方程分别为：Ｙ＝－０．３９１８＋１．５１９Ｘ，Ｙ１＝２．２３２＋１．５５３Ｘ。泽漆的发生为害对小麦穗粒数、千粒重的影响不显著。经济阈值计算结果表明，用使它隆进行防除，泽漆发生密度达３．０株／ｍ＾３

Abstract:The results of the experiment conducted during 1995 - 1996 in our institute showed that the relationship between the density of Euphorbia helioscopia and wheat yield loss can be described by straight line correlation, that is , Y‘ = -0. 3918 1. 519X and

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