泡桐优良无性系苏桐3号的选育  

The breeding of elite clone of Paulownia × Jiangsuensis CL.‘3’/

作　　者：倪善庆[1] 施士争[1] 

机构地区：[1]江苏省林业科学研究所

出　　处：《江苏林业科技》1998年第2期1-6,共6页Journal of Jiangsu Forestry Science & Technology

基　　金：国家"八五"科技攻关专题

摘　　要：通过人工杂交，选育出苏桐３号无性系，生长量显著超过对照兰考桐及苏桐７０无性系，４年生树高、胸径、材积分别比兰考桐增产１０．６％，１６．５％，５６．７％；比苏桐７０无性系增产５．６％，９．２％，３８％。胶合板栽培性状的综合选择指数值分别增加６１．４％和４１．０％。丛枝病发病率与感病指数也显著低于对照。并具有一定的抗风能力。Paulownia × Jiangsuensis CL ‘3’,which is resistant to wind, was selected through artificial hybridization on account of its faster growth, its height, diameter of breast height and timber volume increases 10 6%,16 5%,56 7% than that of P.elongata and 5 6%,9 2%,38% than that of Sutong 70. The value of comprehesive select index about cultivation characters of polywood timber increases 61 4% and 41% than that of P.elongata and Sutong 70 respectively, the incidence and infected index of witches broom are slower than that of the two comparison species too. Author’s address Forestry Research Institute of Jiangsu, Nanjing 211153 PRC

关 键 词：泡桐 杂交 综合选择 无性系 苏桐3号 

分 类 号：S792.430.4[农业科学—林木遗传育种]