【摘要】 为明确玉米不同品种(系)之间的抗螟性差异,采用田间自然感螟法,于2010~2011年在甘肃省天水市甘谷县对478份玉米种质资源进行田间抗性鉴定。结果表明:在216份农家种资源、216份自交系和46份杂交种中共筛选出高抗材料86份、抗螟材料85份、中抗材料167份,分别占供鉴材料的18.0%、17.8%和34.9%;其余140份为感螟和高感材料,占29.3%。更多还原

【Abstract】 So as to confirm the borer-resistance differences among different corn varieties(inbred lines),the study adopted the method of being naturally infected by Ostrinia furnacalis under field conditions,and identified the resistance of 478 maize germplasms to corn borer in Gan’gu county,Tianshui city,Gansu province from 2010 to 2012.The results showed that:among 478 maize germplasms(216 peasant variety resources,216 inbred lines and 46 hybrids),86 high-resistant materials(18.0% of all materials),85 borer-resistant materials(17.8%),167 middle-resistant materials(34.9%) were screened out;the other 140 materials were susceptible or highly susceptible to corn borer,accounting for 29.3% of all tested materials.更多还原