甘蔗选50叶片下表皮结构与抗绵蚜的关系  

Relation Between Back Leaf Epidermis Structure and Ceratovacuna lenigera Resistance of Sugarcane Cultivar Xuan 50

作　　者：周明强 刘凡值 谢惠珏 

机构地区：[1]贵州省亚热带作物科学研究所,贞丰562200

出　　处：《贵州农业科学》2002年第4期16-17,共2页Guizhou Agricultural Sciences

基　　金：贵州省自然科学基金项目"甘蔗新良种选 5 0抗绵蚜机理研究"内容之一 [黔基合计字 (1 999) 3 0 99]

摘　　要：通过对甘蔗选 5 0、桂糖 11、F13 4 3个品种 + 3叶下表皮进行解剖观察 ,比较了其肋区宽、肋间区宽及构造 ,气孔数量、大小、排列、形状等。结果表明 :甘蔗选 5 0的叶片下表皮的肋区宽、肋间区宽都较小 ,单位面积叶脉分布比较多 ,叶背比较粗糙 ,叶片下表皮肋间区分布的气孔数量多并且排列紧密 ,气孔小 ,叶片结构不利于绵蚜的取食危害 ,是选 5 0抗绵蚜的主要因素之一。Back leaf epidermis of Sugarcane Xuan 50, Guitang 11 and F 134 were observed, and the rib width and structure, stoma number, size, arrangement and shape and etc were compared. The results were as follows: smaller rib width, more vein per unit area, rougher back leaf epidermis, denser and smaller stoma can prevent the Ceratovacuna lenigera to damage, which was the main reason that the Sugarcane Xuna 50 can control Ceratovacuna lenigera.

关 键 词：甘蔗 选50 叶片 表皮结构 抗绵蚜 抗虫性 

分 类 号：S566.1[农业科学—作物学]