三种豆科树种光合特性比较  

Comparative Study on Photosynthetic Characteristics of Three Leguminous Tree Species

作　　者：武术杰 徐文建 曲麒 冯双武 WU Shujie;XU Wenjian;QU Qi;FENG Shuangwu(The Tourism College of Changchun University,Changchun University,Changchun 130011,China)

机构地区：[1]长春大学旅游学院,长春大学,吉林长春130011

出　　处：《四川林业科技》2022年第6期74-79,共6页Journal of Sichuan Forestry Science and Technology

基　　金：长春大学旅游学院重点建设课程(20212406),吉林省大学生创新业项目(2021SJ089)。

摘　　要：以长春地区三种豆科树种为试材探索其光合特性差异,为高产栽培应用提供依据。用便携式光合作用仪测光合指标,分光光度计测叶绿素含量。三种豆科树种的Pn日变化均呈双峰曲线,“午休”现象明显。相关性分析表明,刺槐、香花槐的PAR与Pn、Gs与Pn、PAR与Gs均呈显著正相关(P<0.01);刺槐的Tr和Ci呈显著正相关(P<0.01),香花槐的Tr和Ci呈显著正相关(P<0.05)。相同的PAR水平下,Pn表现:刺槐>香花槐>青皮槐,光的利用能力:青皮槐>香花槐>刺槐。Three leguminous tree species in Changchun were used as test materials to explore the differences in photosynthetic characteristics,which provided the basis for high-yield cultivation and application.The photosynthetic index was measured by portable photosynthesis instrument,and the chlorophyll content was measured by spectrophotometer.The diurnal changes of the Pn of the three leguminous tree species all showed a double-peak curve,and there was an obvious phenomenon of"noon break".The results of correlation analysis showed that PAR and Pn,Gs and Pn,PAR and Gs of Robinia pseudoacacia and Robinia pseudoacacia cv.idahoensis were significantly positively correlated(P<0.01).There was a significant positive correlation between Tr and Ci of Robinia pseudoacacia(P<0.01),and there was a significant positive correlation between Tr and Ci of Robinia pseudoacacia cv.Idahoensis(P<0.05).Under the same PAR condition,Pn was as follows:Robinia pseudoacacia>Robinia pseudoacacia cv.idahoensis>Maackia amurensis,and the light utilization ability was as follows:Maackia amurensis>Robinia pseudoacacia cv.idahoensis>Robinia pseudoacacia.

关 键 词：刺槐 青皮槐 香花槐 光合特性 相关性 

分 类 号：Q945.11[生物学—植物学]