【摘要】 为提供抗病育种抗源材料,2004~2005年,以纹枯病大麦培养菌物在玉米拔节期进行田间人工接种,参照国际玉米小麦改良中心(CIMMYT)的病害分级评定方法进行鉴定的研究方法,对广西83个糯玉米农家品种进行田间纹枯病抗病性鉴定研究。研究结果表明,广西糯玉米农家品种间的抗感性存在差异;同一品种在同一年度内病害的表现春植和秋植也存在一定的差异,在83个品种中没有发现免疫和高抗的品种,其中抗病品种占所鉴定品种总数的42.2%,中抗水平占40.9%,感病占13.3%,高感占3.6%。结论:广西糯玉米农家品种有大量抗源材料,值得育种者去挖掘改良利用。更多还原

【Abstract】 To provide disease-resistance breeding materials,an artificial inoculation was conducted by means of sheath blight barley culture at maize stem pushing period in the field.According to CIMMYT’s disease grade method,83 local sticky maize varieties was researched for their resistance to the disease.The results show that the differences among the varieties exist and for the same variety in same year,there is certain difference between spring and autumn cultivation.There is no immunity and highly disease-resistance variety among the 83,and the resistance varieties account for 42.2% of the total,middle resistance for 40.9%,average infection for 13.3%,highly infection for 3.6%.Conclusion:there are a lot of disease-resistance resources in Guangxi’s sticky maize,which are worth to be utilized and explored by breeding workers.更多还原