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Photosynthetic characteristics of three varieties of Lilium “Oriental Hybrids”in the central areas of Yunnan Province, China

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Frontiers in Biology 2008年第4期3卷 453-458页

作者： Wei CHAnG Shuyun LI Hong HU Yayu FAn Kunming Institute of Botany Chinese Academy of SciencesKunming 650204China Graduate University of Chinese Academy of Sciences Beijing 100039China Yunnan University School of Life ScienceKunming 650091China

To understand the ecophysiological adapta-tion of Lilium"Oriental Hybrids",which are grown for their commercial bulbs,the gas exchange,leaf n and chlorophyll content of the three varieties were investigated in the central areas of the Yunnan *** the three varieties,light-saturated photosynthetic rate at ambient CO_(2)(Amax)of Tiber was the highest,while that of Siberia was the *** difference in the Amax was related to the carboxylation efficiency(CE),leaf mass per unit area and leaf n content per mass,which indicated that their photosynthetic capacity was influenced by the activity and/or the quantity of *** three vari-eties had lower photosynthetic saturation points and pho-tosynthetic compensation points,but the photosynthetic rates were not decreased up to 2000 μmol·m^(-2)·s^(-1) of the light *** indicates that the three varieties had broad adaptability to light *** were signifi-cant differences in the photosyn thetic optimum temper-ature among the three *** had the highest photosynthetic optimum temperature(25.5℃-34.9℃),and is likely to grow well in warm *** had the lowest photosynthetic optimum temperature(19.3℃-25.6℃),and its growth is favored in cool *** can maintain a high photosynthetic rate within a wide range of ***,Tiber is the most suitable variety for the climate in the central areas of the Yunn an Province,China.

关键词： East lily(Lilium"Oriental Hybrids") photosynthesis carboxylation efficiency leaf dry mass per area leaf n content per mass

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