粉茎螟 (Sesamianonagrioides)是欧洲南部玉米最重要的害虫。研究的目的是寻找能够使玉米茎及穗抵御粉茎螟侵害的抗源。在Pontevedra(西班牙的西北部 ) ,对来自 7个种质群(美洲、阿根廷、欧洲、兰卡斯特、北部硬粒、瑞德及其他 )的 1 2 1个自交系根据其成熟期 (超早熟、早熟、中熟、晚熟 )的不同 ,分组进行了几年的人工粉茎螟侵染评价试验。记录了 1 2种性状来评价茎及穗的损害程度。结果表明 :茎和穗的抗虫性没有相关性 ,因此 ,在同一群体内对两种类型抗性同时进行选择。 8个极早熟 ,2个早熟 ,7个中熟和 4个晚熟自交系具有抗螟性。瑞德种群的抗性比其他种群的强。因此 ,可选用最好的瑞德自交系组成抗螟的瑞德人工种群 ,并将其作为新的抗粉茎螟品种资源。同时 ,也可以用最好的非瑞德自交系来组成非瑞德抗粉茎螟的人工种体。有 7个自交系 (A50 9,A62 5,CO1 2 5,EA2 0 2 4 ,EP39,OH43和PB1 30 )茎和穗同时具有抗虫性。这些自交系在选育计划中可作为抗粉茎螟的资源 Sesamianonagrioides is the most important pest of corn in southern Europe. The purpose of the study was to find a source of resistance that would protect corn stalks and spikes against powdery stem borer. In Pontevedra (northwestern Spain), 121 inbred lines from seven germplasm groups (Americas, Argentina, Europe, Lancaster, northern Durie, Reid and others) were selected based on their maturity ( Ultra-precocious, early maturity, maturity, late maturity) different, sub-group carried out several years of artificial powder stem borer infection evaluation test. One or two traits were recorded to assess the extent of damage to stems and spikes. The results showed that there was no correlation between stem and ear pest resistance, so both types of resistance were selected simultaneously in the same population. Eight very early-maturing, two early-maturing, seven middle-maturity and four late-maturing inbred lines were resistant to rice borer. Reed population is more resistant than other populations. Therefore, the best Reid inbred lines can be used to form the Reed artificial population of the resistance to borer, and as a new anti-powder stem borer variety resources. At the same time, the best non-Reed inbred lines can also be used to form non-Reid anti-powder stalks artificial populations. Seven inbred lines (A50 9, A62 5, CO1 2 5, EA2 024, EP39, OH43 and PB1 30) had stem and ear pest resistance at the same time. These inbred lines can be used as resources for resistance to Sesamia inbreeding programs