12个美国银合欢新品种在云南三地的引种初效  

Introduction Experiments on New Varieties and Hybrids of Leucaena in Yunnan

作　　者：李江[1,2] 邱琼[1] 朱宏涛 杨宴平 刘海刚[5] 陈宏伟[1] 孟梦[1] 冯弦[1] 刘永刚[1] 郭永清[1] 

机构地区：[1]云南省林业科学院,云南昆明650204 [2]北京林业大学研究生院,北京100083 [3]昆明植物研究所,云南昆明650204 [4]保山市林业技术推广站,云南保山678000 [5]云南省农业科学院热区生态农业研究所,云南元谋651300

出　　处：《西部林业科学》2010年第3期20-26,共7页Journal of West China Forestry Science

基　　金：国家林业局"948"项目(2006-4-67);云南省技术创新人材培养项目(2008PY085);云南省科技攻关计划项目(2004NG05-02);云南省应用基础研究(2007C240M)

摘　　要：2007～2008年利用从美国引进的KX2、KX3、KX4、K784、K636、K584、K608、K565、K29、K72、K156、K376共12个银合欢新品种在云南的普文、鸡飞和开远三地开展了育苗和造林试验。育苗试验结果表明,采用热水浸种5 min可以有效提高其种子的发芽率;采用两段式培育的袋苗比直播穴盘育的苗好,同龄出圃苗苗高前者明显高于后者,但地径差异不大。造林试验结果表明,在经历2008年低温寒害和2009～2010年的特大旱灾后,上述12个银合欢新品种在三地的造林成活率和保存率基本正常,林木生长良好,其中以开远试点表现最好。总的看来,引进的银合欢新品种具有较强的抗逆性,在云南推广种植的潜力很大。New varieties and hybrids of Leucaena introduced from Hawaii,including KX2、KX3、KX4、K784、K636、K584、K608、K565、K29、K72、K156 and K376 were experimental cultivated in Puwen,Jifei and Kaiyuan of Yunnan.Results from the experiment on seedling growing showed seed soaking with hot water before sowing increased germination rate remarkably;containerized seedlings undergone transplanting were better than those by direct sowing in nest containers;seedlings of same age grown in Puwen were better than those in Jifei in terms of height,but diameter at ground level did not vary significantly.The results of the planting experiments showed that the plantations in 3 sites survived 2008 cold weather damage and the 2009～2010 once in a century draught attack,still showed a satisfied growing performance,especially in Kaiyuan.In general,these introduced new varieties and hybrids have showed excellent adaptabilities to disadvan tageous conditions and have great potential for extensive planting in Yunnan.

关 键 词：美国银合欢 云南引种 育苗 造林 

分 类 号：S722.7[农业科学—林木遗传育种]