环境因素与生姜需光特性关系研究  

The relationship between environmental Factors and light requirement of ginger

作　　者：徐坤[1] 郑国生[1] 王秀峰[1] 

机构地区：[1]山东农业大学园艺学院,泰安271018

出　　处：《生态学报》2001年第7期1091-1094,共4页Acta Ecologica Sinica

基　　金：山东省科技攻关项目 ( 991 1 542 0 3)

摘　　要：生姜光合作用的适宜光强与水分、温度及 CO2 等环境因素密切相关。 80 %的土壤相对含水量有利于生姜叶片利用较强的光照 ,其光合作用的饱和光强达 1 2 0 6μmol· m- 2·s- 1,水分胁迫可显著降低其对强光的适应性 ,4 0 %土壤相对含水量时 ,光合作用的饱和光强仅 62 1 μmol· m- 2·s- 1;而在正常供水条件下 ,以 2 5～ 30℃的温度有利于生姜叶片对光能的利用 ;生姜对强光的适应能力随空气 CO2 浓度的升高而显著增强 ,CO2 达 1 2 0 0μL/L时 ,其光合作用的饱和光强达1 2 0 6μmol· m- 2·s- 1,但在 2 2 0 μL/L时 ,其光合作用的饱和光强仅 60 8μmol·m- 2· s- 1。由此可以认为生姜应是喜光耐荫作物而非喜荫怕光作物 。There was significant influence of environmental factors (soil water content, temperature and CO 2 concentration etc.) on the light requirement of ginger. 80% soil water content was good for photosynthesis and water stress decreased the ability of adapting strong light in ginger. In the conditions of supplying water formally, the light utilization ratio was higher at 25～30℃,in addition the ability of adapting strong light increased significantly with the rising of CO\-2 concentration. As the results ginger should be “light\|loving and tolerant plant”not“ombrophobous”. In view of the above ,the experiment that mulching with straw was in stead of shading in ginger field.

关 键 词：生姜 光合作用 环境因素 需光特性 

分 类 号：Q948.112[生物学—植物学]