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读了农业科学通讯1956年第10期发表的“关于碧蚂一号丧失抗锈性及其它抗锈品种抗锈性发生变异的一些情况”以后,就联想到近年来我们在太谷山西农学院,也曾看到和所谈问题的严重性。虽然已经初步认为抗病品种的衰退现象和丧失了抗病性的原因,可能就是由于适应新品种的病菌生理小种的出现,或者是原有病菌适应性的加强,但是这种解释目前还不可能给农业实践提出任何防止产量损失的方法,因此我们对于抗锈选种的工作,也应该有一个重新的估价。因为一个抗锈品种的育成需要很长的时
Read the Agricultural Science Newsletter 1956 tenth issue of the “on the Bi Ma one loss of rust resistance and other rust-resistant varieties of some variation”, after that, in recent years, we think of Taigu Shanxi Agronomy College has also seen the seriousness of the issues in question. Although it has been preliminarily thought that the recession and loss of disease resistance of the resistant varieties may be due to the emergence of pathogenic races adapted to the new varieties or to the enhancement of the adaptability of the original germs, this explanation is not yet at present There may be any way of preventing the loss of yield in agricultural practices, so we should have a re-evaluation of the work on rust-resistant seed selection. Because breeding a rust-resistant variety takes a long time