文献类型：期刊文献

中文题名：板蓝根光合及水分生理生态特性

英文题名：Characteristics of Photosynthesis and Water Physio-ecology of Isatis indigotica

作者：张劲松[1] 孟平[1] 高峻[1]

第一作者：张劲松

机构：[1]中国林业科学研究院林业研究所

年份：2004

卷号：32

期号：3

起止页码：26-28

中文期刊名：东北林业大学学报

外文期刊名：Journal of Northeast Forestry University

收录：CSTPCD;;北大核心:【北大核心2000】；CSCD:【CSCD2011_2012】；

基金：国家"十五"攻关课题 2 0 0 1BA51 0B0 4部分研究内容

语种：中文

中文关键词：板蓝根;光合;蒸腾;水分利用率

外文关键词：Isatis indigotica; Photosynthesis; Transpiration; Water utilization efficient

分类号：S567.239

摘要：研究了太行山低山丘陵区板蓝根在 2 0℃温度条件下 ,不同光合有效辐射 (PAR)强度及不同CO2 摩尔分数 (CCO2 )范围内叶片光合及水分生理生态参数的变化特征。结果表明 :① 4 0 0 μmol·mol-1CO2 摩尔分数条件下 ,板蓝根叶片净光合速率 (Pn)与PAR之间的回归方程 :Pn=- 9× 10 -6P2 AR+0 .0 2 71PAR- 1.2 5 6 4 ,相关系数可达 0 .96 6 4 (n =4 0 ) ;光饱和点、补偿点及表观量子效率分别为 15 0 5 .6 μmol·m-2 ·s-1、5 2 .834μmol·m-2 ·s-1、0 .0 344 ;叶片蒸腾速率 (Tr)与PAR间回归方程 :Tr=0 .0 0 36PAR+6 .16 5 3,相关系数 0 .8132 ,F =74 .19>F3 80 .0 1=2 .85 ;叶片水分利用率 (WUE)与PAR间回归方程 :WUE=- 10 -6P2 AR+0 .0 0 34PAR- 0 .2 5 6 7,二者相关系数为 0 .86 84 (n =4 0 ) ;② 12 0 0 μmol·m-2 ·s-1PAR条件下 ,Pn 与CCO2 之间回归方程Pn=- 3× 10 -5CCO2 2 +0 .0 6 0 6CCO2 - 5 .0 0 93,相关系数为 0 .9883(n =4 0 ) ,CO2 饱和点、补偿点及羧化效率分别为 10 10 .0 μmol·mol-1、86 .35 μmol·mol-1、0 .0 2 18;Tr 随CCO2 的增加呈直线下降趋势 ,但二者关系并不明显 ,WUE与CCO2 之间回归方程为 :WUE=- 7× 10 -7C2CO2 +0 .0 0 2 7CCO2 ,相关系数r=0 .9771。
Under the condition of 20℃, the different intensities of photosynthesis active radiation(P AR )and different ranges of CO 2 contents(C CO 2 ), the characteristics of leaf photosynthesis and water physio-ecology of Isatis indigotica were studied in the hilly region of Taihang Mountain. The results showed that under the condition of 400 μmol·mol -1 C CO 2 , the regression equations between net photosynthesis rate (P n) and P AR is P n=-9×10 -6 P 2 AR +0.027 1P AR -1.256 4 with regression coefficient r=0.966 4(n=40); the critical points of light saturation and light compensation, apparent quantum yield(AQY) are 1 505.6 μmol·m -2 ·s -1 , 52.834 μmol·m -2 ·s -1 , 0.034 4, respectively; the regressive equation between transpiration (T r) and PAR is 0.003 6P AR +6.165 3 with r=0.813 2(n=33), F=74.19>F 38 0.01 =2.85, the regressive equation between transpiration (T r) and P AR is W UE =-10 -6 P 2 AR +0.003 4P AR -0.256 7 with r=0.868 4(n=40). Under the condition of P AR is 1 200 mol·m -2 ·s -1 , the regressive equation between P n and CO 2 contents is -3×10 -5 C 2 CO 2 +0.060 6C CO 2 -5.009 3 with r=0.988 3(n=40), CO 2 saturation point, compensation point and Carboxylation efficiency are 1 010.0 μmol·mol -1 , 86.35 μmol·mol -1 , 0.021 8, respectively. T r has a linearity-reducing tendency along with the decrease of CO 2 contents, but there is no significant correlation between the both. The regressive equation between W UE and CO 2 contents is W UE =-7×10 -7 C CO 2 2+0.002 7C CO 2 , r=0.977 1(n=40).