福建中亚热带7个桉树无性系多点造林对比试验研究  

Contratest Investigation on Seven Clones of Eucalyptus Multiplace Forestation in Middle-subtropics of Fujian

作　　者：李宝福[1] 

机构地区：[1]福建省林业科学研究院国家林业局南方山地用材林培育重点实验室,福建福州350012

出　　处：《林业科学研究》2007年第2期181-187,共7页Forest Research

基　　金：福建省林木种苗科技攻关项目<按树良种选育与扩繁应用>(闽林科2003-10)专项经费资助

摘　　要：在福建中亚热带开展7个桉树无性系的区域试验研究结果表明:巨桉3号速生性、适应性和耐寒性强,生长量高,稳定性较好,可耐-4～-4.5℃的低温。DH201-2、巨桉1号和DH184-1生长量较高,速生性、适应性和抗逆性较强,稳定性好,可耐-3.5～-4.0℃的低温。这4个无性系适合在福建中亚热带年均温19℃以上的不同区域选择应用;柳窿桉9号速生性中等,耐寒性有限,只可耐-2.0～-2.5℃的低温,而赤桉1号和赤桉3号虽耐寒性强,可耐-5℃的低温,但速生性差、产量低,而且这3个无性系的变异性大,稳定性差,适应范围窄,只适合局部小区域生长,作为短周期工业原料林不提倡在该区发展。Contratest investigation on 7 clones of Eucalyptus in the middle-subtropics of Fujian was conducted and the result showed that the adaptability, fast-growth and cold-resistance of E. grandis No 3 were strong, the growth increment was high, the stability was better, it could bear the low temperatures of - 4 - - 4.5 ℃. The adaptability, fast-growth and cold-resistance of E. grandis No 1, DH184-1 and DH201-2 were stronger,the yield was higher,the stability was excellent, they could bear the low temperature of - 3.5 - - 4.0 ℃. They were suitable to be planted in Fujian middle-subxropical area with average temperature above 19 ℃ ; The fast-growth of E. saligna x E. exserta No 9 were generic but its resistant to cold was limited, could only bear low temeratures of - 2.0 - - 2.5 ℃, the rate of freeze injury was high. The cold-resistance of E. camaldulensis No 1 and No 3 were strong, could bear the low temperatures of -5 ℃, but their fast-growth were poor and yields were low. Moreover, the variability of this three clones was big and the stability was not good, the adaptive area was narrow, they could only fit to plant on local small areas and didn＇ t advocate development in the middle-subtropics of Fujian.

关 键 词：福建中亚热带 耐寒桉树无性系 区域试验 

分 类 号：S792.39[农业科学—林木遗传育种]