一球悬铃木无性系耐旱性研究  

Drought Resistance of Pure-clonic Forms of Platanus occidentalis

作　　者：蔡晓明[1] 卢宇蓝[2] 施季森[3] 

机构地区：[1]川北医学院基础医学院,四川南充637007 [2]复旦大学生命科学院,上海200433 [3]南京林业大学,江苏南京210037

出　　处：《西北林学院学报》2010年第6期19-24,共6页Journal of Northwest Forestry University

基　　金：国家林业局重点课题(2003-002-L0)

摘　　要：通过盆栽条件下水分胁迫试验,测定了一球悬铃木优良无性系的耐旱性生理生化指标,结果表明:在水分胁迫下,12个一球悬铃木无性系光合特性、叶绿素荧光参数均出现明显差异,GA与荧光参数的Fv/Fm、△F/Fm、qP和光合速率(Pn)、气孔导度(Gs)、蒸腾速率(Tr)变化趋势一致,ABA、IAA、ZR呈现区间波动态势。NY44、SJ8、SJ36、DY36、ZJ36、ZJ14等无性系耐旱性较强。We treated potted Platanus occidentalis with water stress and checked several physiological and biochemical indicators related to drought resistance. The results indicated a significant difference in the photosynthesis properties and chlorophyll fluorescence parameters of 12 pure-clonic forms under water stress. Only GA, among the four endogenous hormones that we checked, had the same change tendency with the A value, Gs, and Tr of photosynthesis efficiency and some fluorescence parameters like Fv/Fm, △F/Fm, and qP. However, ABA, IAA and ZR showed irregular changes. Analysis also indicated a relatively strong drought resistance in pure-clonic forms like NY44, SJ8, SJ36, Dy36, ZJ36, and ZJ14.

关 键 词：一球悬铃木 无性系 耐旱性 光合特性 内源激素 

分 类 号：S792.370.1[农业科学—林木遗传育种]