不同种源高山栲光合日变化及光合潜能分析  

Analysis of Diurnal Variation and Photosynthetic Pote ntial of Castanopsis delavayi from Different Provenances

作　　者：王顺利 张春华 戚建华[1] 毛晓佩[1] 孙永玉 WANG Shunli;ZHANG Chunhua;QI Jianhua;MAO Xiaopei;SUN Yongyu(College of Forestry,Southwest Forestry University,Kunmi ng 650233,Yunnan,China;Institute of Highland Forest Science,Chinese Academy of Forestry,Ku nming 650233,Yunnan,China;Yuanmou Desertification Ecosystem Research Station,Kunming 650233,Y unnan,China)

机构地区：[1]西南林业大学,云南昆明650233 [2]中国林业科学研究院高原林业研究所,云南昆明650233 [3]国家林业局云南元谋荒漠生态系统定位研究站,云南昆明650233

出　　处：《福建林业科技》2022年第3期12-17,共6页Journal of Fujian Forestry Science and Technology

基　　金：中央级公益性科研院所基本科研业务费(高山栲资源收集与培育关键技术研究,CAFYBB2018ZB001-6);国家重点研发计划项目课题(金沙江干热河谷坝区生态综合治理及农业产业发展技术试验示范,2017YFC0505102)。

摘　　要：为筛选出光合效率高、光合潜能大的高山栲种源,于2020年在云南省昆明市中国林业科学研究院高原林业研究所,利用Li-6400便携式光合作用测定仪对5个种源(镇沅、龙陵、双柏、宾川、永德)高山栲幼苗的光合日变化、光响应曲线和相关荧光参数等进行测定,并进行相关性分析。结果表明,不同种源高山栲幼苗在同一环境中部分光合指标差异显著,其中龙陵种源在相同光强下的净光合速率快,能够适应更广泛的光,有较强的光能利用率和水分利用率,光合效率高,光合潜能大,可作为高山栲繁育的优良种源。In order to screen out the Castanopsis delavayi provenances with high photosynthetic efficiency and photosynthetic potential,the research Institute of Plateau Forestry,Chinese Academy of Forestry,Kunming,Yunnan Province,2020,the diurnal variation of photosynthesis,light response curve and related fluorescence parameters of Castanopsis delavayi seedlings from five provenances(Zhenyuan,Longling,Shuangbai,Binchuan and Yongde)were measured by Li-6400 portable photosynthesis analyzer,and the correlation analysis was carried out.The results showed that some photosynthetic indexes of Castanopsis delavayi seedlings from different provenances differed significantly in the same environment.Longling provenances had faster net photosynthetic rate under the same light intensity,could adapt to a wider range of light,had stronger light energy utilization and water utilization,had higher photosynthetic efficiency,and had higher photosynthetic potential,which could be used as an excellent provenances for Castanopsis delavayi breeding.

关 键 词：高山栲 不同种源 光合特性 

分 类 号：S792.17[农业科学—林木遗传育种] S718.43[农业科学—林学]