小麦品种(系)对不同地理种群荻草谷网蚜的抗性

Resistance of wheat varieties(lines) to the different geographic populations of Sitobion miscanthi

采用田间成株期自然感蚜法和室内苗期接虫法,鉴定12个小麦品种(系)对5个不同地区荻草谷网蚜Sitobion miscanthi(Takahashi)种群的抗性。结果表明,小麦品种(系)室内苗期的抗性表现与田间成株期基本一致;Amigo、KOK、北京837、铭贤169和红芒红对5个地理种群荻草谷网蚜的抗性表现相同,丰产3、中4无芒、JP①、晋麦31、L1、885479-2和小白冬麦对5个地理种群荻草谷网蚜种群的抗性表现则存在差异。研究表明我国荻草谷网蚜对抗蚜作物品种具有致害性分化。

The behavior of five different geographic populations of Sitobion miscanthi （Takahashi） on 12 wheat varieties （lines） was observed through laboratory screening of seedling technique and field screening of adult technique. The results showed that the resistant performance of 12 wheat varieties （lines） in seedling were consistent with that of adult period; the resistance of Amigo, KOK, cv. Beijing 837, cv. Mingxian 169 and cv. Hongmanghong to five different geographic populations was similar, however, the other wheat varieties （lines）, Fengchan NO. 3, Zhong 4 wumang, JP（1）, cv. Jinmai 31, L1, 885479-2 and cv. Xiaobaidongmai had different types of resistance to five different geographic populations of S. miscanthi. The result demonstrated that there were biotype differentiations of S. miscanthi in China.