避雨栽培条件下红宝石无核葡萄光合特性初探  

Studies on photosynthetic characteristics of Ruby Seedless(Vitis vinifera L.cv.) in rain-shelter cultivation

作　　者：陈冲[1] 杨国顺[1] 石雪晖[1] 刘昆玉[1] 钟晓红[1] 倪建军[1] 罗彬彬[1] 

机构地区：[1]湖南农业大学园艺园林学院,长沙410128

出　　处：《中外葡萄与葡萄酒》2011年第3期21-24,共4页Sino-Overseas Grapevine & Wine

基　　金：国家农业部农业公益性行业科研项目(nyhy2x07-027);现代农业产业技术体系专项资金资助(CARS-30);湖南省科技厅重点科研项目(2009CK-2010);湖南省教育厅省级科技计划(成果推广计划)项目(09CY008)

摘　　要：以欧亚种葡萄红宝石无核为试材,使用LI-6400光合作用测定系统,对其在避雨栽培条件下果实膨大期的光合特性进行了研究。结果表明:葡萄叶片的净光合速率(Pn)日变化呈双峰曲线,具有明显的光合"午休"现象。光饱和点(LSP)为1500μmol/(m2?s),光补偿点(LCP)为55.48μmol/(m2?s);CO2饱和点(CSP)为1200μmol/mol,CO2补偿点(CCP)为45.04μmol/mol;表观量子效率(AQY)为0.0436,羧化效率(CE)为0.0461。Photosynthetic characteristics of Vitis vinifera L.cv.Ruby Seedless were studied in rain-shelter cultivation in the berry expanding stage by using the LI-6400 portable photosynthesis system.The results showed that diurnal courses of Pn in leaves of Ruby Seedless in the expanding stage presented a double peak curve,and decreased at noon.The light saturation point and light compensation point of leaf were 1500μmol/（m2？s） and 55.48μmol/（m2？s）,respectively,the CO2 saturation point and compensation point were 1200μmol/mol and 45.04μmol/mol.Apparent quantum yield（AQY） and carboxylation efficiency（CE）were 0.0436 and 0.0461.

关 键 词：避雨栽培 红宝石无核 光合特性 

分 类 号：S62[农业科学—园艺学] S945.11