湿地松、火炬松优良家系选择  

Superior Family Selection of Pinus elliottii and Pinus taeda

作　　者：梁瑞龙[1] 项东云[1] 易平 冯林霞 李立杰[1] 

机构地区：[1]广西林业科学研究院,南宁530022 [2]广西国有黄冕林场,鹿寨545600

出　　处：《广西林业科学》2013年第3期226-230,共5页Guangxi Forestry Science

基　　金：国际合作项目"湿地松;火炬松优良家系选择试验"

摘　　要：对引进美国的湿地松(Pinus elliottii)、火炬松(P.taeda)的生长状况,与当地马尾松(P.massoniana)进行比较分析。4年试验结果表明:在广西北部丘陵地,火炬松生长表现良好,树高、胸径、单株材积显著大于马尾松、湿地松;试验所研究10个火炬松家系、10个湿地松家系生长量,树高、胸径、单株材积生长差异明显;马尾松4年生时,采用种子园种子,轻基质育苗,造林施基肥,生长量与采用母树林种子,黄泥土育苗,不施基肥,树高、胸径、单株材积生长量分别提高了8.6%、19.7%和55.5%。Growth conditions of Pinus elliouii and P. taeda introduced from U S A were compared with the indigenous P. massoniana. The results of 4-year experiment indicated that： In hilly area of northern Guangxi, P. taeda displayed better growth performance than P. massoniana and P. elliottii in tree height, DBH and individual stem volume. Among the 10 families of P. taeda and 10 families of P. elliottii, great differences existed in tree height, DBH and individual stem volume. At the age of 4-year-old, tree height, DBH and individual volume of P. massoniana grown with seeds from seed orchard, nursed with light media and afforested with basic fertilizer, increased by 8.6%, 19. 7% and 55.5% respectively, com pared with those grown with seeds from mother trees, nursed with yellow soil and afforested without basic fertilizer.

关 键 词：湿地松 火炬松 家系 马尾松 

分 类 号：S791.24[农业科学—林木遗传育种]