系材 meaning in Chinese
accouplement
Examples
- The experimental results show that the characters of tree height , dbh , and volume , etc . of every family progenies of pinus massoniana seed orchard are all evidently higher than those of control ( ck ) , 7 fine family materials whose volume growth exceeds the control ' s by 50 % are totally selected as the materials for building p . massoniana improved seed orchard and industrial raw material forest
摘要对漳平五一国有林场马尾松种子园18个初选家系进行子代测定，采用随机区组设计、 8次重复，对6年生的树高、胸径、材积等性状进行测定，试验结果表明：马尾松种子园各家系子代均明显高于对照( ck ) ，共选出7个优良家系材积生长超过对照50 %以上材料，作为营建马尾松改良种子园和工业原料林的材料。