甘肃豌豆地方品种资源白粉病抗性鉴定

Identification of Resistance to Pea Powdery Mildew on Pea Landraces in Gansu

以从甘肃定西、临夏、河西等地收集的34份豌豆地方品种资源为试材,在田间自然感病条件下,结合室内盆栽人工接种试验,进行豌豆白粉病抗性鉴定。结果鉴定出抗病资源7份,占全部鉴定材料的20.59%,其中D27表现为抗病(R),占供试材料的2.94%;D18、D20、D21、D23、D25、D28等6份材料表现为中抗(MR),占供试材料的17.65%。剩余27份材料为高感(HS)或中感。综合对白粉病抗性与农艺性状表现,半蔓生型豌豆抗白粉病资源D23可作为地方优良品种直接加以利用,其余6份抗病材料则可作为抗病亲本资源。

34 pea landraces are identificated of resistance to pea powdery mildew under naturally infected condition in the field and the interval sowing experiment. The result shows that 7 landraces are resistant to powdery mildew accounted for 20.59%,D27 with resistant accounted for 2.94%,D18、D20、D21、D23、D25、D28 with moderate resistant accounted for 17.65%,and the rest of 27 landraces with high susceptible and moderate resistant. Based on resistant to pea powdery mildew and agronomic superiority,this study screened out leafed pea D23,which could be further effective utilization directly as variety,others as parental resources resistant to pea powdery mildew.