Comparison of photosynthetic characteristics of three Akebia cultivars
Author(s): WU Ling-li, XIONG Li, KE Bin-feng, GONG Chun, LEI Xiao-lin, LI Jian-an, The Key Lab of Non-wood Forest Products of State Forestry Administration, Central South University of Forestry & Technology, The Key Lab of Cultivation and Protection for Non-Wood Forest Trees of Education Ministry, Central South University of Forestry & Technology, 2011 Cooperative Innovation Center of Cultivation and Utilization for Non-Wood Forest Trees of Hunan Province, Central South University of Forestry & Technology, Jiangxi Province Academy of Forestry
Pages: 46-49+100
Year: 2015 Issue: 2
Journal: Nonwood Forest Research
Keyword: Akebia quinata; photosynthetic characteristics; chlorophyll; light saturation point; carboxylation efficiency;
Abstract: In order to screen out Akebia cultivar with high photosynthetic efficiency and to provide theoretical basis for introduction and cultivation of Akebia, photosynthetic parameters and chlorophyll content in three Akebia cultivars were determined by Li-6400 xt portable photosynthesis system, photosynthetic-light response curves and photosynthetic-CO2 response curves for three Akebia cultivars(A. quinata, A. trifoliata, A. trifoliata var) were analyzed, and differences of photosynthetic characteristics in three Akebia cultivars were compared. The results showed that:(1) Most of indexes of A. quinata were higher than those of A. trifoliata and A. trifoliata var, and the differences between them reached significant level(P<0.5), including net photosynthetic rate(Pn), stomatal conductance(Gs), transpiration rate(Tr), intercellular CO2concentration(Ci), chlorophyll content, the maximum net photosynthetic rate(Pmax), light saturation point(LSP), and carboxylation efficiency(CE);(2) Some indexes of A. quinata are lower than A. trifoliata and A. trifoliata var., and they were water use efficiency(WUE), light compensation point(LCP), apparent quantum yield(AQY), dark respiration rate(Rd), CO2 saturation point and CO2 compensation point;(3) The order of three Akebia cultivars based on photosynthetic efficiency from high to low was A. quinata, A. trifoliate, A. trifoliata var.
Pages: 46-49+100
Year: 2015 Issue: 2
Journal: Nonwood Forest Research
Keyword: Akebia quinata; photosynthetic characteristics; chlorophyll; light saturation point; carboxylation efficiency;
Abstract: In order to screen out Akebia cultivar with high photosynthetic efficiency and to provide theoretical basis for introduction and cultivation of Akebia, photosynthetic parameters and chlorophyll content in three Akebia cultivars were determined by Li-6400 xt portable photosynthesis system, photosynthetic-light response curves and photosynthetic-CO2 response curves for three Akebia cultivars(A. quinata, A. trifoliata, A. trifoliata var) were analyzed, and differences of photosynthetic characteristics in three Akebia cultivars were compared. The results showed that:(1) Most of indexes of A. quinata were higher than those of A. trifoliata and A. trifoliata var, and the differences between them reached significant level(P<0.5), including net photosynthetic rate(Pn), stomatal conductance(Gs), transpiration rate(Tr), intercellular CO2concentration(Ci), chlorophyll content, the maximum net photosynthetic rate(Pmax), light saturation point(LSP), and carboxylation efficiency(CE);(2) Some indexes of A. quinata are lower than A. trifoliata and A. trifoliata var., and they were water use efficiency(WUE), light compensation point(LCP), apparent quantum yield(AQY), dark respiration rate(Rd), CO2 saturation point and CO2 compensation point;(3) The order of three Akebia cultivars based on photosynthetic efficiency from high to low was A. quinata, A. trifoliate, A. trifoliata var.
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