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在田间,通过不同时期人工接种小麦条锈病菌(Puccinia striiformis West. f. sp. tritici Erikss)和施用杀菌剂三唑酮的组合,测定小麦叶内三唑酮及其代谢产物三唑醇含量对病害相对侵染几率(RIP)、潜育期(LP)、病斑扩展(LE)、产孢面积(SA)及传染期(IPe)等组分的定量影响。结果表明,施药后不同批次接种,在一定时间内,麦叶内药剂可降低病害相对侵染几率并延长其潜育期;接种后施药,在一个潜育期内,药剂可使病害潜育期提早。麦叶内药剂作用与品种慢锈性作用一致,即降低LE速率,缩小病斑面积和SA,缩短IPe。在试验基础上,动态量化麦叶内药剂含量对上述组分及其相对参数的影响。
In the field, triadimefon and its metabolite triadimenol were determined by artificial inoculation of Puccinia striiformis West (f. Sp. Tritici Erikss) and the fungicide triadimefon at different stages (RIP), latent period (LP), lesion expansion (LE), sporulation area (SA) and infection period (IPe). The results showed that different batches after inoculation, within a certain period of time, the wheat leaf agent can reduce the relative risk of disease and extend the incubation period of incubation; after inoculation application, in a latent period, the agent can make the disease Potential incubation earlier. The effect of the agent in the wheat leaf is consistent with the slow rusting of the cultivars, that is, the LE rate is reduced, the lesion area and the SA are reduced, and the IPe is shortened. On the basis of the experiment, the influence of the content of medicament in wheat leaves on the above components and their relative parameters was quantitatively analyzed.