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小麦赤霉病是长江中下游麦区最严重的病害,对小麦生产威胁极大,因此迫切需要抗赤霉病品种.而进行小麦抗赤霉病育种工作,必然要考虑到抗性遗传规律.由于赤霉病发生受环境影响很大,抗性遗传比较复杂,研究十分困难.国外在这方面虽做了一些工作,但结论不尽一致.美国施罗德和克列斯廷生认为,赤霉病抗性是多基因控制的数量性状.日本中川元兴认为,新中长等小麦品种的赤霉病抗性受三对基因控制.而意大利小麦品种吉阿多512的赤霉病抗性,则由一对显性基因控制.在国内,近几年对赤霉病抗性遗传也进行了研究,并有一些报道,一般认为抗性属多基因控制的数量性状,遗传力偏低,有的呈加性效应.
Wheat scab is one of the most serious diseases in the middle and lower reaches of the Yangtze River and threatens the wheat production, so it is urgently needed to resist the scab pathogen, and the breeding of wheat scab must take into account the genetic law of resistance. Due to the environmental impact of scab caused by a large, genetic resistance is more complex, the study is very difficult.Although some foreign work done in this regard, but the conclusions are not consistent.Schroot and Kristin in the United States that the red Mildew resistance is a quantitative trait controlled by multiple genes.Japan Nakagawa Yuanxing believes that the scab resistance of Xinzhongchang and other wheat cultivars is controlled by three pairs of genes.While the Italian wheat cultivar Guadiver 512 scab resistance , Is dominated by a pair of dominant genes.In China, the inheritance of scab resistance has also been studied in recent years, and there are some reports that it is generally considered that the resistance is a quantitative trait controlled by multiple genes with low heritability, Some were additive effects.