小麦多品种混播对条锈病的控制及稳产作用研究

小麦条锈病已成为威胁四川省小麦安全生产最重要的病害。探讨条锈病的有效控制措施,为病害的综合治理提供技术支撑,具有特别重要的意义。本研究通过对6个不同抗性水平的小麦品种进行不同组合的混播,系统调查了各品种净作和多品种混播田小麦条锈病的病情发展动态。试验表明4个或6个品种混播能推迟条锈病发病期、延缓发病速率、降低发病程度,而且具有较好的稳产作用。

Control of Wheat Stripe Rust and Ensuring High Yield of Crops under Planting of Wheat Variety Mixtures

Wheat stripe rust has become the most dangerous disease which threaten safe yield of wheat in Sichuan Province. It is meaningful to provide technique support for integrated disease control by exploring the effective control measures of wheat stripe rust. Wheat stripe rust dynamic developments of all-planting and mixed-planting have been systematically investigated in this study by taking different mixed-planting combinations among 6 wheat varieties with different resistance levels. The results of this experiment show that the mixed-plantings of 4 and 6 wheat varieties can delay the occurance of wheat stripe rust,slow the speed of disease and decline the damage of disease as well as stabilize yield of wheats.

不同除草剂对小麦阔叶杂草防除效果评价

麦田阔叶杂草是影响小麦产量的主要因素之一,选择和使用除草剂是防除麦田阔叶杂草的重要措施。为了评价6.25%使阔得WG、5.8%麦喜SC和20%使它隆EC的除草效果,开展了这3种除草剂对麦田阔叶杂草的防除试验。结果表明3种除草剂对麦田阔叶杂草均具有较好的防除效果,一次施药即可基本控制小麦整个生育期的杂草危害;且使用这3种除草剂防除杂草后,小麦可增产3.88%～8.96%。