马占相思抗寒性测定  

Study on cold resistance of Acacia mangium

作　　者：张卫华[1] 张方秋[1] 陈祖旭[2] 徐大平[2] 张守攻[3] 胡彩颜[2] 

机构地区：[1]广东省林业科学研究院,广州510520 [2]中国林业科学研究院热带林业研究所 [3]中国林业科学研究院林业研究所

出　　处：《林业科技开发》2010年第6期33-36,共4页China Forestry Science and Technology

基　　金："948"引进国际创新项目"相思定向育种与新品系示范"(编号:2001-C2);广东省林业科技创新专项"优质;速生相思无性系选育研究与示范"(编号:2009KJCX006)

摘　　要：采用电导法对马占相思15个家系进行了耐寒性测定及选择。结果表明,马占相思耐寒性变异达到极显著差异;相对抗寒的家系3个,分别为GJM00926、GJM00934、GJM00941。马占相思抗寒性较差,半致死温度为1.061 7℃。The cold resistance of 15 Acacia mangium families was studied by the electrical conductivity method in this paper.The results showed that there were significant differences on cold resistance between families.Generally,A.mangium was not strong to resist the lower temperature because its semilethal（LT50） was 1.061 7℃,but the family GJM00926,GJM00934 and GJM00941 were relatively stronger than the other families in cold resistance.

关 键 词：马占相思 抗寒性 相对电导率 半致死温度 

分 类 号：S792.99[农业科学—林木遗传育种]