安徽农业科学2017，Vol.45Issue(27)：62-64,189,4.
喷钙对干旱胁迫下葡萄光合作用及叶绿素荧光参数的影响
Effects of Calcium Spray on Photosynthesis and Chlorophyll Fluorescence of Grape under Drought Stress
摘要
Abstract
[Objective] To investigate the effect of exogenous calcium on photosynthesis and chlorophyll fluorescence of table grape,as well as the photoprotective function of calcium on photosystem under water stress .[ Method] An experiment was conducted on two-year-old potted table grape (Vitis vinifera L.cv.Red Globe) with four treatments,well watered with water foliar spray,well watered with calcium foliar spray,water stressed with water foliar spray ,water stressed with calcium foliar spray .Photosynthesis and chlorophyll fluorescence of leaves were determined . [Result ] Calcium foliar spray retarded the degradation of chlorophyll by sustained a relatively high SPAD,significantly improved net photosyn-thesis rate (Pn),sustained a high activity of photosystemⅡwith higher photochemical quenching (qP),antenna efficiency of PSⅡ(Fv'/Fm'), maximum photochemical efficiency of PSⅡ(Fv/Fm),electron transport rate (ETR),and less initial fluorescence (Fo) than water foliar spray. Exogenetic calcium helped sustain the activity of PSⅡby sustaining high stomatal conductance,reducing chlorophyll degradation,increasing the photosynthetic electron transport,and sustaining high ФPSⅡ.[Conclusion]The research can give reference for improving drought-resistant ability of grape.关键词
钙素/干旱胁迫/红地球葡萄/光合作用/叶绿素荧光Key words
Calcium/Water stress/Table grape/Photosynthesis/Chlorophyll fluorescence分类
农业科技引用本文复制引用
杨阳,王恒振,王咏梅,管雪强,尹向田,苏玲..喷钙对干旱胁迫下葡萄光合作用及叶绿素荧光参数的影响[J].安徽农业科学,2017,45(27):62-64,189,4.基金项目
山东省农业重大应用技术创新项目:山东葡萄酒地标性酒种开发与关键技术集成应用(2016),特色酒用葡萄产期精准调控与产品创新研究应用(2017) （2016）
葡萄节本提质标准化生产与深加工技术集成示范(CXGC2016D01). （CXGC2016D01）
