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当前位置: 首页 > 文章 > 杂交马褂木回交优株的光合特性 经济林研究 2011,29 (4) 42-46
Position: Home > Articles > Photosynthetic characteristics of backcrossed superior plant in L.chinense×tulipifera Nonwood Forest Research 2011,29 (4) 42-46

杂交马褂木回交优株的光合特性

作  者：
吴晓星;房义福;姜楠南;王翠香;康鹏
单  位：
山东农业大学;山东省林业科学研究院
关键词：
杂交马褂木;回交优株;光合特性;资源利用效率
摘  要：
为研究杂交马褂木回交优株优异性状的生理基础,对自然条件下9年生杂交马褂木回交优株及亲本的光合特性指标进行测定。结果表明,杂交马褂木回交优株、杂交马褂木、马褂木的净光合速率呈"双峰"曲线,环境CO2浓度值、叶面光合有效辐射值、叶表面温度、气孔导度是影响净光合速率的主要因子。通过分析3个树种的净光合速率、瞬时水分利用效率、表观光能利用效率和表观CO2利用效率,表明回交优株的资源利用效率高于亲本。
译  名：
Photosynthetic characteristics of backcrossed superior plant in L.chinense×tulipifera
作  者：
WU Xiao-xing1,FANG Yi-fu1,JIANG Nan-nan1,WANG Cui-xiang1,KANG Peng2(1.Shandong Academy of Forestry,Ji′nan 250014,Shandong,China; 2.Shandong Agricultural University,Tai′an 271000,Shandong,China)
关键词：
L.chinense × tulipifera;backcrossed superior plant;photosynthetic characteristics;resources utilization efficiency.
摘  要：
In order to investigate physiological basis of the excellent characteristics of backcrossed superior plant in L.chinense × tulipifera under natural conditions,the photosynthetic indexes of backcrossed superior plant in 9-year-old L.chinense × tulipifera and its parent plant were determinated.The results showed that a two-peak curve pattern was observed in the diurnal variations of net photosynthetic rate for backcrossed superior plant of L.chinense × tulipifera,L.chinense × tulipifera and L.chinens.The main factors affecting net photosynthetic rate were environmental CO2 concentration,photosynthetically active radiation,leaf temperature and stomata conductance.By comparing the net photosynthetic rate,water use efficiency,apparent light use efficiency and apparent CO2 use efficiency of three tree species,the resources utilization efficiency of backcrossed superior plant was higher than parent plant.

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