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本文通过人工接种和146种树杨(包括杂交种)自然发病情况的调查,研究分析了杨树的不同派别和杂交后代对山杨锈病(Melampsora LaricisHart.)和青杨锈病(M. Laric-populina Kleb.)两种锈病的抗病差异。两种锈病的为害以派为界,寄生范围互补,不混同发生;不同派别的杨树对这两种锈病的感病性具有明显的差异。杂交杨只能感染这种锈病的一种,究竟感染那种锈病,关键看母本,与父本无关;感病程度则与父本和母本均有相关性。这一结论和文中所附的各种杨树的病情调查结果同相,为各地推广杨树优良品种和在培育抗锈品种如何选择亲本提供了有价值的参考依据。
In this paper, by investigation of the natural inoculation and 146 kinds of poplar (including hybrids), the effects of different poplar breeding and hybrid offspring on the genetic diversity of Melampsora Laricis Hart and M. laric-populina Kleb.) Two rust resistance differences. The two kinds of rust damage to the school for the sector, the parasitic range of complementary, non-confused with; different types of poplar on the two rust susceptibility were significantly different. Hybrid Yang can only infect a kind of rust, what kind of rust infection, the key to see the female parent has nothing to do with the male parent; the degree of susceptibility is related to both male and female parent. This conclusion is consistent with the findings of the various poplar diseases attached to the article, which provides valuable reference for popularizing poplar varieties and cultivating anti-rust varieties in various places.