4种杀虫剂对优质小麦产量和品质的影响
Effect of pesticides on yield and quality of high quality wheat
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摘要: 田间试验研究了4种杀虫剂(啶虫脒、吡虫啉、氧化乐果及高效氯氰聚酯)对3个优质小麦品种(“临优145”、“临优2069”和“临优2018”)千粒重、产量及品质的影响, 结果表明: 杀虫剂提高了优质小麦千粒重和产量, 氧化乐果处理提高最多, 高效氯氰菊酯处理次之, 且两处理间差异不显著。杀虫剂对优质小麦品质的影响因小麦品种而异, 氧化乐果处理和高效氯氰菊酯处理使3个小麦品种蛋白质含量提高, 强筋“临优145”和“临优2069”加工品质下降, 但大多指标与对照差异不显著, 中筋“临优2018”营养品质和加工品质均得到改善; 啶虫脒处理对优质小麦产量提高和品质改善效果最差; 杀虫剂对优质小麦可溶性蛋白质(清蛋白和球蛋白)影响较小, 对贮藏蛋白(醇溶蛋白和谷蛋白)影响较大。Abstract: The effect of four pesticides (acetamiprid, imidacloprid, omethoate and beta-cypermethrin) on 1000-kernel weight, yield and quality of three high quality wheat varieties (“Linyou 145”, “Linyou 2069” and “Linyou 2018”) were studied in a field experiment. Results show that pesticides increase 1000-kernel weight and yield of high quality wheat. Omethoate has higher effect than the other pesticides followed by beta-cypermethrin. However, the differences of 1000-kernel weight and yield of high quality wheat under omethoate and beta-cypermethrin treatments are insignificant. Omethoate and beta-cypermethrin increase grain protein content in three high quality wheat varieties. Almost all processing quality indices of strong gluten wheat varieties (“Linyou 145” and “Linyou 2069”) are decreased, with no notable difference from the control. Nutritional and processing quality of moderate gluten wheat (“Linyou 2018”) improves. Acetamiprid has the worst effect on yield and quality of high quality wheat. Pesticides have higher effect on stored protein, gliadin and glutelin in high quality wheat than on soluble protein, albumin and globulin.