中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 三裂叶蟛蜞菊光合生理特性对光合有效辐射增强的响应 草原与草坪 2005 (2) 27-31
Position: Home > Articles > Response of photosynthetic physiological characteristics of Wedelia trlobata to the increasing photosynthetic active radiation Grassland and Turf 2005 (2) 27-31

三裂叶蟛蜞菊光合生理特性对光合有效辐射增强的响应

作  者：
刘金祥;莫穗秋
单  位：
湛江师范学院热带草业科学研究所
关键词：
光合有效辐射;三裂叶蟛蜞菊;光合生理
摘  要：
三裂叶蟛蜞菊是华南地区重要的园林绿化植物。在人工控制光合有效辐射(PAR)条件下,测量了三裂叶蟛蜞菊在深秋和冬季的净光合速率(Pn),蒸腾速率(Tr),胞间CO2浓度(Ci)和气孔导度(Gs)等光合生理特性对连续光照强度增强的响应。结果表明:Tr、Pn均随PAR的增强而增大,且增幅稳定;Gs在PAR增强的起始阶段先下降,从200μmol/(m2·s)后,逐渐上升,尤其11 月较明显;Ci随着PAR的增强而逐渐减少,在PAR为2 000μmol/(m2·s)后趋于平衡。温度对三裂叶蟛蜞菊光合生理特性的影响较显著,但若光照充分,其光合速率也能提高。三裂叶蟛蜞菊有较高的水分利用率,表明它比较耐干旱。
译  名：
Response of photosynthetic physiological characteristics of Wedelia trlobata to the increasing photosynthetic active radiation
作  者：
LIU Jin-xiang,MO Sui-qiu(Institute of Tropical Pratacultural Science, Zhanjiang Normal College, Zhanjiang 524048, China)
关键词：
photosynthetic active radiation; photosynthetic physiological; Wedelia trlobata
摘  要：
The effect of photosynthetic active radiation (PAR) on the photosynthetic physiological characteristics of Wedelia trlobata ,including photosynthesis rate (Pn), transpiration rate (Tr), intercellular CO_2 concentration (Ci) and stomatal conductance (Gs), were studied under the controlled PAR condition (from 0 mol/m~2 s to 2600 mol/m~2 s). The results indicated that: Tr and Pn increased with the enhanced PAR intensity. Gs decreased with the enhanced of PAR at the beginning, but increased as PAR increased later. Ci decreased with the increasing of PAR, then reach balance when PAR intensity was more than 2000 mol/m~2 s. The values of Tr and Pn in November were higher than in January, but the value of Ci was lower. It was obvious that the influence of the temperature change on photosynthetic physiological character of Wedelia trlobata was significant.

相似文章

导出引用
计量
文章访问数: 7
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46