避雨栽培条件下红地球葡萄不同物候期光合特性初探  

Preliminary study on the photosynthetic characteristics of Red Globe in Rain-shelter-cultivation

作　　者：陈冲[1] 段慧[1] 石雪晖[1] 杨国顺[1] 刘昆玉[1] 钟晓红[1] 王美军[1] 徐丰[1] 

机构地区：[1]湖南农业大学园艺园林学院湖南省葡萄工程技术研究中心,湖南长沙410128

出　　处：《中外葡萄与葡萄酒》2013年第1期12-15,19,共5页Sino-Overseas Grapevine & Wine

基　　金：现代农业产业技术体系专项资金(CARS-30);国家农业部农业公益性行业科研项目(nyhy2x07-027);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：本试验主要研究了避雨栽培条件下红地球葡萄果实膨大期、转色期和成熟期的光合特性。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)分别为1387.50、1335.71、1342.86μmol/(m2 s),光补偿点(LCP)分别为60.76、24.64、39.87μmol/(m2 s);CO2饱和点(CSP)分别为1095、1230、1035μmol/mol,CO2补偿点(CCP)分别为57.23、66.79、44.56μmol/mol。The photosynthetic characteristics of Red Globe in rain-shelter-cultivation during the fruit expanding stage, veraison and maturation period were measured. The results showed that the diurnal courses of Pn of Red Globe leaves in the three stages presented a double peak curve, and decreased at noon. The light saturation points of Red Globe in the three stages were 1387.5, 1335.71 and 1342.86 μmol/（m^2·s） respectively.The light compensation points were 60.76, 24.64 and 39.87 μ mol/（m^2·s） respectively. The CO2 saturation points were 1095, 1230 and 1035 μ mol/mol. The CO2 compensation points were 57.23, 66.79 and 44.56 μmol/mol.

关 键 词：避雨栽培 红地球 光合特性 

分 类 号：Q945.11[生物学—植物学]