大豆茎、叶、荚普遍着生茸毛,表现有末端形态、密度、长度和角度(着生状态)的差异。本文利用地方品种群体研究了大豆叶片和叶柄茸毛性状的变异、区域差异、相互关系及其与大豆对豆卷叶螟抗性的关系。大豆叶片茸毛密度、长度、角度和叶柄茸毛角度在全国393份代表性大豆地方品种间存在大幅度变异,变幅分别为4.8～105.9根·10 mm-2(无茸毛品种除外),0.22～0.94 mm,0°～88°和5°～90°。叶片茸毛密度、长度和角度大的品种较少,而叶柄茸毛角度小的品种较少。393份大豆地方品种中尖型茸毛末端品种127份。叶片茸毛长度、角度、末端形态及叶柄茸毛角度与地理生态区有关,生态区I的叶片茸毛较长,生态区I和II的叶片茸毛角度较大,生态区I、II和III的钝型茸毛末端比率较高,生态区I、II和V的叶柄茸毛角度较大,而叶片茸毛密度与生态区无关。叶柄、叶片茸毛角度及叶片茸毛长度间相互呈极显著正相关,叶片茸毛密度与长度间呈极显著负相关。叶片茸毛密度和长度在茸毛末端形态间也有显著差异,尖型茸毛末端的品种茸毛密度较大,长度较短。豆卷叶螟引起的虫包数和卷叶率与叶片、叶柄茸毛角度及叶片茸毛长度极显著正相关,而与叶片茸毛密度显著负相关,与茸毛末端形态无关。叶片茸毛角度与抗虫性指标相关性最强,角度越小越抗虫,是大豆抗豆卷叶螟的重要因子。 Soy stems, leaves, pods common hairy hair, showing the end of the form, density, length and angle (status of students) of the difference. In this study, the local breeds populations were used to study the variation, regional differences, interrelationships and their relationship with the soybean resistance to soybean leafmold traits in soybean leaves and petioles. Soybean leaf hair density, length, angle and petiole angle in 393 representative soybean varieties across the country there is a significant variation in the amplitude of 4.8 ~ 105.9 root · 10 mm-2 (non-velvet varieties), 0.22 ~ 0.94 mm, 0 ° ~ 88 ° and 5 ° ~ 90 °. Vane hair density, length and angle of the larger species less, and leaves less small angle of hairy species. 127 varieties of 393 soybean varieties were identified. Leaf length, angle, terminal morphology and leaf stem hair angle were related to geographical and ecological zones. The leaves in ecological zone I had a long hair and the leaf velvet angle in ecological zone I and II was larger. The blunt hair in ecological zone I, II and III The ratio of leaf tip to anthesis was higher in ecotypes I, II and V, while leaf density did not correlate with ecologic region. Petiole and leaf velvet angle and leaf hair length were significantly and positively correlated with each other, leaf hair velvet density and length was extremely significant negative correlation. There was also a significant difference in the density and length of the leaf hair between the ends of the hairs. The hairy ends of the pointed hairs had a higher density and a shorter length. The number of worm-packs and leaf-rolling rate induced by the leaf moth were significantly and positively correlated with the angle of leaf blade and leaf blade hair length, but negatively correlated with the leaf hair density, but not with the shape of the hairy end. Leaf blade hair angle and the strongest insect resistance index, the smaller angle more insect-resistant, is an important factor in soybean curl resistance moths.