玉米自交系心叶期对亚洲玉米螟抗性遗传规律的研究初报  

PRELIMINARY STUDIES ON THE INHERITANCE OF INBRED LINES RESISTANT TO ASIAN CORN BORER IN WHORL STAGE OF MAIZE

作　　者：钟占贵[1] 张坪[1] 李春霞[1] 

机构地区：[1]黑龙江省农业科学院玉米研究中心

出　　处：《植物保护学报》1992年第1期13-15,共3页Journal of Plant Protection

摘　　要：不同抗螟性亲本所组配的F_1代在玉米心叶期,对亚洲玉米螟 Ostrinis furnacalis(Guenée)抗性研究表明,玉米抗螟牲为数量遗传,亲本抗性在杂种后代中具有累加效应,杂种的抗性与双亲平均抗性呈高度正相关。中等以上抗性亲本组配的 F_1代为抗螟型。而以中抗系组配杂种时,不论父本或母本,只要一个亲本为感螟系,则 F_1代均为感螟型。不同水平抗性亲本组配的正反交组合 F_1代差异极显著。The tested results on the resistance of F_1 generation to Asian Cornborer Ostrinia furnacalis(Guenée)(ACB)in whorl stage from differentcrosses of parent inbred lines possessing different capabilities of ACBresistance showed it belongs to quantitative inheritance;the resistanceof parents has accumulative effect into hybrid descendants,and the resis-tance of hybrids was high-positively correlated with the mean resis-tance of their parents.As the F_1 derived from the cross of parents bothhaving higher resistance than medium level,it will belong to resistantcategory;while it will be in susceptible category if one of the parents,whether male or female is ACB susceptible and crossed with the otherhalf having medium resistance.There were significant differences amongF_1 hybrids crossed by straight and rociprocal combinations of parentshaving different levels of resistance.

关 键 词：亚洲玉米螟 心叶期 抗性 遗传 玉米 

分 类 号：S513.034[农业科学—作物学]