白杨染色体加倍技术研究及三倍体育种（Ⅲ）──加倍体某些形态特征的观察  

Studies on Chromosome Doubling and Triploid Breedingof White Poplar ( Ⅲ )──The Observation of Some Morphological Charactersin Triploids of White Poplar

作　　者：李凤兰[1] 张志毅[1] 张民侠 

机构地区：[1]北京林业大学森林资源与环境学院

出　　处：《北京林业大学学报》1994年第2期15-18,共4页Journal of Beijing Forestry University

基　　金：国家教委优秀年轻教师基金

摘　　要：为进一步确认经秋水仙碱诱导出的毛新杨（ＰｏｐｕｌｕｓｔｏｍｅｎｔｏｓａＣａｒｒ．×ＰｏｐｕｌｕｓｂｏｌｌｅａｎａＬａｕｃｈｅ）大花粉在毛新杨雌花上授粉后所得到的后代个体ＴＢＴ－７是三倍体杨树，对ＴＢＴ－７及其父、母本（ＴＢ１１，ＴＢ０１）、对照（ＴＢＤ）和三倍体欧洲山杨（Ａｓｔｒｉａ）分别进行叶片面积、厚度和气孔长度等项特征的比较。结果表明ＴＢＴ－７的多倍体巨大性是显著的．In order to further identify the polyploid of the unidentified triploid poplar(TBT-7) (which is the hybrid , arising from the fertilization of a normal hyploid egg cell ofpoplar (TB01) with an unreduced pollen which is induced by colchicine) , the leaf area, thethickness of the leaves and the palisade tissue , the stomatal length and width have been mea-sured and compared with the triploid of white poplar (TBT-7) , the control (TBD) , the par-ents (TB11 , TB01) and the aspen triploid (Astria). The measurements have shown that thegigantism characterstics of polyploid in TBT-7 is obvious, which proved to have been cor-rectly determined as a triploid.

关 键 词：三倍体 形态特征 白杨 染色体 育种 

分 类 号：S792.110.4[农业科学—林木遗传育种]