综合评分法选育杨树纸浆材优良无性系探讨  

SELECTION AND DISCRIMINATION OF GOOD CLONES OF POPULUS FOR PAPER PULB TIMBER BY THE METHOD OF SYNTHETICAL COMPARISONS AND EVALUCTION

作　　者：任建中 王宗汉 

机构地区：[1]山西省怀仁县金沙滩林场

出　　处：《东北林业大学学报》1996年第4期69-73,共5页Journal of Northeast Forestry University

基　　金：国家"八五"攻关课题。

摘　　要：对２２个群众杨改良无性系的材性和生长性状进行综合评定，探讨了评定无性系的方法。把纤维长度、纤维长宽比、纤维壁腔比、木材基本密度及生长性状作为评定一个无性系优劣的依据。每一项指标给予相应的赋分值。分别采用六项指标（纤维长度、纤维壁腔比、纤维长宽比、密度、树高、胸径）评分法和三项指标（纤维性状、木材密度、材积）评分法，综合评定每个无性系的得分值。最后，选出了５个优良无性系。Fibre length, ratio of fibre length and width, ratio of fibre wall and volume, wood density, and as well growth character (tree height, diameter at breast height) were taken as the basic elements for appraising, and relevent mark value was assigned to each element. Two methods, Six-Index-Note and Three-Index-Note, were developed for discrimination of a good or bad clone. The timber properties and growth character of 22 improved clones of Populus popularis were synthetically compared and appraised by the methods and 5 good clones weredetermined.

关 键 词：杨树 无性系 综合评价 纸浆材 

分 类 号：S792.110.4[农业科学—林木遗传育种]