摘要
在田间条件下研究了大豆对红蜘蛛的抗虫性。结果表明，品种间抗虫性存在显著差异。对抗虫性的指示性状研究指出，茸毛性状是决定品种抗虫性的关键性状。茸毛密度小的品种抗虫性强；茸毛短的品种抗虫性较强；抗病毒的品种也较抗红蜘蛛。灰色茸毛、紫花和叶色深的品种表现对红蜘蛛具有微弱抗性。
The insect -resistance of soybean(G.Max)to red spider Tetranghus bimaculatus Harvey was studied on farm field.Result showed that the resistance to spider appeared remarkable difference among varities,and it was down characteristie that determined the resistivity.Some varieties having less down densith performed strongest resistance and some varieties having shorter down had stronger resistance to red spider.The varieties resisted virus(SMV)had some resistance.besides,varieties of grey down,purple flower or dark colour leaf had weak resistance.
关键词
大豆
红蜘蛛
抗虫性
茸毛
Soybean
Insect-resistance
Red-spider
