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为了帮助预测慢锈型抗病性的不同组分(它们是在单周期接种试验中测定的)在田间条件下将如何起作用,提出了一些公式。这些公式由侵染效能(每100个落在叶面上的夏孢子发育成夏孢子堆的个数)、潜育期、夏孢子堆大小,每个夏孢子堆每天产生的夏孢子个数以及夏孢子堆的传染期而构成。在处理潜育期的数据时,这些公式认为:在某一定日期发生的侵染要经过不同的若干天的期限才能形成夏孢子堆。这些公式可用于预测某些慢锈性抗锈组分的组合如何延迟流行。它们可为植物育种工作者在慢锈性育种中选择最优分离系提供指导。
To help predict how different components of the slow-rust disease resistance, as measured in a single-cycle inoculation experiment, will work under field conditions, several formulas are proposed. These formulas consist of the infectivity (the number of uredospores that develop per 100 of the sporophyte that fall on the foliage), the incubation period, the size of the summer spore, the number of summer spores produced per summer spore pile, Summer spore reactor infection period and form. In dealing with the data of the incubation period, these formulas consider that the infection of a certain date takes several different days to form a summer spore reactor. These formulas can be used to predict how the combination of some slow-rust anti-rust components can delay the fashion. They provide guidance for plant breeders in choosing the best isolates for slow-rust breeding.