几种针阔叶树种不同光照强度下叶绿素荧光特性的研究

摘要/Abstract

摘要： 测定研究了油松、新疆杨等7种针阔叶树种不同光照强度下最大量子效率(ΦP)和实际量子效率(PhiPSⅡ)等叶绿素荧光特性的变化规律,进而研究了树木对光照强度适应性。结果表明,ΦP和PhiPSⅡ随光强度增加呈下降趋势,二者的光进程变化呈正相关直线。运用方程获得的量子效率最大点、光进程变化转折点和量子效率最小点,可评价树木光合量子效率的大小和对强光的适应性。依PhiPSⅡ最大值对被试树种光合量子效率排序为沙棘>白榆>新疆杨>白腊>油松>白木千>侧柏;依ΦP光进程变化转折点和量子效率最小点对应的光强度评价被试树木对强光的适应能力排序为新疆杨>白榆>侧柏>白腊>油松>沙棘>白木千,结果与被试树种生态特征基本一致。

关键词: 印度谷螟性信息素顺9,反12-十四碳二烯醇醋酸酯行为反应

Abstract: Change characteristics of chlorophyll fluorescence,maximum quantum efficiency (ΦP) and the real quantum efficiency (PhiPSⅡ),and the adaptability of Pinus tabulaeformis,Populus alba cv.pyramidalis,Ulmus pumila,Platycladus orientalis,Hippophae rhamnoides,Fraxinus pennsylvanica and Picea meyeri were studied under different irradiance.The results showed that ΦP and PhiPSⅡ decreased with increasing light intensity.Light course of ΦP and PhiPSⅡ could be expressed with equation y=a+b(1-exp(-kx)),in which x and y represented light intensity and ΦP or PhiPSⅡ,respectively.ΦP showed linear increase with increasing PhiPSⅡ.The maximum quantum efficiency,turning point and minimum quantum efficiency of light course could be used to estimate the photosynthesis quantum efficiency of the tested species and their adaptability to strong light.The photosynthesis quantum efficiency of the tested species according to the maximum PhiPSⅡ decreased in order of Hippophae rhamnoides>Ulmus pumila>Populus alba cv.pyramidalis>Fraxinus pennsylvanica>Pinus tabulaeformis>Picea meyeri>Platycladus orientalis.The adaptation capability to strong light estimated from the light intensity of turning point of ΦP light course and minimum quantum efficiency was in order of Populus alba cv.pyramidalis>Ulmus pumila>Platycladus orientalis>Fraxinus pennsylvanica>Pinus tabulaeformis>Hippophae rhamnoides>Picea meyeri.The results accorded with the ecological characteristics of the tested plants.

Key words: Indian meal moth, Sex pheromone, (Z,E)-9,12-tetradecadienyl acetate, Behavioral response

中图分类号:

Q945.11

何炎红, 田有亮, 郭连生. 几种针阔叶树种不同光照强度下叶绿素荧光特性的研究[J]. 生态学杂志, 2005, (5): 467-472.

HE Yanhong, TIAN Youliang, GUO Liansheng. Chlorophyll fluorescence characteristics of some coniferous and deciduous tree species under different irradiance[J]. cje, 2005, (5): 467-472.

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