尾巨桉不同无性系造林对比试验  

Contrast Experiment of Planting Different Clones of Eucalyptus urophylla

作　　者：张荣标 Zhang Rongbiao(Pinghe Tianma State-owned Forest Farm,Fujian Province,Zhangzhou 363700,China)

机构地区：[1]福建省平和天马国有林场,福建漳州363700

出　　处：《防护林科技》2020年第11期34-37,共4页Protection Forest Science and Technology

摘　　要：为丰富尾巨桉优良无性系造林,提高桉树速丰林的稳定性和安全性,开展7个尾巨桉无性系造林对比试验,4年生时进行生长和抗性调查统计分析。结果表明:无性系群体保存率达93.3%,各无性系间差异不显著;各无性系在胸径、树高、单株立木材积的差异达极显著或显著水平;抗风能力和耐寒能力比CK强的无性系有D3、D5、D2、D4号,比群体平均值强的无性系有D3、D5、D2号。采用隶属函数法综合评价,选出D3号和D5号2个无性系为优良无性系,可在生产上适度造林推广。In order to enrich the afforestation of excellent clones of Eucalyptus urophylla×E.grandis and improve the stability and safety of fast-blooming Eucalyptus forests,a comparative test of afforestation for seven Eucalyptus urophylla×E.grandis clones was conducted,and the growth and resistance traits of 4 years old were investigated and analyzed statistically.Result shows that the population preservation rate of clones reach 93.3%,and the differences among the clones are not significant;the differences in diameter at breast height,tree height,and standing wood volume of each clone reach extremely significant or significant levels;wind resistance and cold tolerance are higher than CK Strong clones are D3,D5,D2,D4,and clones stronger than the population average are D3,D5,D2.Using the membership function method to evaluate comprehensively,two clones(D3 and D5)were selected as excellent clones.They have the characteristics of fast growth,high preservation rate,and strong stress resistance,which can be moderately promoted in production.

关 键 词：尾巨桉 无性系 生长量 抗逆性 

分 类 号：S792.39[农业科学—林木遗传育种]