河南农业科学Issue(12)：99-103,116,6.
短期CO2加富对非洲菊光合生理和生长的影响
Effects of Short-term Elevated CO2 Concentration on Photosynthetic Physiology and Growth of Gerbera jamesonii
许申平 1崔波 2叶庆生1
作者信息
- 1. 郑州师范学院 生物工程研究所，河南 郑州450044
- 2. 华南师范大学 生命科学学院，广东 广州510631
- 折叠
摘要
Abstract
Two kinds of CO2 concentration[T1:(700 ± 50)μmol/mol,T2:(900 ± 50)μmol/mol] treat-ments were conducted in open-top plastic greenhouses to investigate their effects on photosynthetic physi-ology and growth in Gerbera jamesonii, compared to the atmospheric CO2 concentration( CK, approximate-ly 380μmol/mol) . The results showed that compared with CK,when the plants were treated for 30 days, the leaf net photosynthetic rate( Pn) of G. jamesonii increased by 68%—80% in T1 and 74%—85% in T2,but the Gs and Tr significantly decreased;elevated CO2 concentration also significantly increased the contents of soluble sugar,starch,but decreased the contents of soluble proteins;the biomass determination in T1 and T2 revealed that plant fresh weight and dry weight was raised 18%,20% and 18%,21%,re-spectively. These results demonstrated that elevated CO2 concentration had significantly positive effects on the growth of G. jamesonii. Even though there were no significant differences between (700 ± 50)μmol/mol and (900 ± 50)μmol/mol CO2 concentration treatments on the basis of the statistical data,(700 ± 50 )μmol/mol CO2 concentration exhibited more favorable cost savings and environmental friendly in com-mential production of G. jamesonii.关键词
非洲菊/高CO2 浓度/净光合速率/生长Key words
Gerbera jamesonii/high CO2 concentration/net photosynthetic rate/growth分类
农业科技引用本文复制引用
许申平,崔波,叶庆生..短期CO2加富对非洲菊光合生理和生长的影响[J].河南农业科学,2015,(12):99-103,116,6.
