论文部分内容阅读
1983及1984年用稍加修改了的Wolfe等提出的毒性频率分析方法,在两套鉴别品种(抗性基因己鉴定及抗性基因未明)上分析了安徽省小麦白粉菌的毒性频率,结果表明该省各地的小麦白粉菌群体基本上相同:毒性基因V_1,V_(3a)、V_(3b)。V_(3c)、V_5较普遍(频率>40%);V_2、V_4、V_2+V_6、V_2+V_(m1d)、V_4+?甚为稀少(频率<6%);洛夫林系统,高加索等黑麦衍生抗源及黔花四号,肯贵阿一号等其它类型的抗源“毒性”频率低。本文结合供试品种成株期表现,讨论了各抗性基因(组合)和抗源在安徽省的应用价值;还讨论了该省小麦白粉菌群体结构形成原因;提出了我省开展抗病育种时应注意的问题和建议。
In 1983 and 1984, Toxicity frequency analysis method proposed by Wolfe et al. Was used to analyze the virulence frequency of powdery mildew of wheat in Anhui province on two identification cultivars (the resistance gene has been identified and the resistance gene is unknown). The results show that The populations of wheat powdery mildew in the province are basically the same: virulence genes V_1, V_ (3a), V_ (3b). V_3c and V_5 are more common (frequency> 40%); V_2, V_4, V_2 + V_6, V_2 + V_m1d and V_4 + Maifanshengqian and Qianhua IV, Kennedy your first and other types of anti-source “toxic” low frequency. In this paper, we discussed the application value of each resistance gene (combination) and anti-source in Anhui Province based on the adult plant performance of the tested varieties. We also discussed the reasons for the formation of wheat powdery mildew population structure in this province. Should pay attention to the problems and suggestions.