整株称重法和光合法测定杨树幼苗蒸腾速率的研究  

The research of measuring transpiration rate of poplar seedlings with whole plant weighing and photosynthetic method

作　　者：王利[1] 杨爱国[1] 付志祥[1] 张玉玲[1] 周世卿 董彬[2] 纪凤奎[2] 

机构地区：[1]白城市林业科学研究院,吉林白城137000 [2]白城市林业局,吉林白城137000

出　　处：《吉林林业科技》2016年第6期25-28,59,共5页Journal of Jilin Forestry Science and Technology

基　　金：吉林省育林基金项目(2012-007);林业公益性行业科研专项(201304106)

摘　　要：以8个杨树品种(系)幼苗为试验材料,利用整株称重法和光合法测定蒸腾速率,结果表明:两种方法测定的幼苗蒸腾速率变化趋势相同,不同品种(系)从小到大的依次顺序为8328杨<8325杨<8801杨<白林3号杨<白城2号<白城小黑杨<8804杨<白城5号杨,其中,8328杨和8325杨蒸腾速率与蒸腾量均较低,说明其抗旱能力优于其他品种(系)。两种测定方法具有显著线性相关关系,相关系数均达到0.7以上。The transpiration rate was measured with whole plant weighing and photosynthetic method by taking 8 poplar seedlings species as experiment material. The result showed that the seedlings transpiration rate variation tendency was the same with two methods. The arrangement of different species was Populus simonii × P. nigra) × P. nigra- 8328'< Populus simonii × P. nigra) × P. nigra- 8325 ' < Populus simonii × P. nigra- 8801 ' < Populus × `Bai Lin- 3 ' < Populus ×`Bai Cheng- 2'< Populus simonii × P. nigracv ˋ baicheng- 1 ˊ < Populus simonii × P. nigra- 8804 ' < Populus ×`Bai Cheng- 5'. The transpiration rate and transpiration amount of Populus simonii × P. nigra) × P. nigra- 8328' and Populus simonii × P. nigra) × P. nigra- 8325' were lower. It demonstrated that their drought resistance ability were superior to other species. Two kinds of methods had significant linear relationship. The correlation coefficient were more than 0. 7.

关 键 词：整株称重法 光合法 杨树品种(系) 蒸腾速率 抗旱性 

分 类 号：S792.11[农业科学—林木遗传育种]