吐鲁番地区温室与露地栽培葡萄光合特性差异分析
Differences of Photosynthetic Characteristics of the Grape Cultivated in Greenhouse and Open Field in Turpan
马微 1牛莹莹 1骆强伟 2孙峰 2伍国红 2廖康1
作者信息
- 1. 新疆农业大学林学与园艺学院特色果树研究中心,新疆乌鲁木齐8300522
- 2. 新疆葡萄瓜果研究所,新疆鄯善838201
- 折叠
摘要
[目的]比较吐鲁番地区温室与露地栽培葡萄叶片光合特性的差异,为温室葡萄优质丰产栽培提供科学依据.[方法]采用Li-6400XT型便携式光合作用测定系统对2个早熟葡萄品种分别在温室与露地栽培条件下的叶片的净光合速率(Pn)、光响应曲线及CO2响应曲线进行测定,比较其差异.[结果]2个品种露地栽培叶片的Pn均高于温室栽培,露地‘火焰无核’的Ph最高为19.79 μmol/(m2·s);光响应中,温室栽培的红旗特早的Pnm和表观量子效率(AQY)最大,光补偿点(LCP)最小,温室栽培的光饱和点(LSP)值高于露地栽培;CO2响应中,温室栽培的最大净光合速率(Pnmax)和暗呼吸速率(Rd)比露地栽培高,羧化效率(CE)比露地栽培低,温室栽培的CO2补偿点(CCP)和CO2饱和点(CsP)均低于露地栽培.[结论]露地栽培葡萄叶片的Pn值高于温室栽培,温室栽培葡萄叶片对较高光强的利用率高于露地栽培,但对高浓度CO2的利用率却比露地栽培低.
Abstract
[Objective] This study compared the leaf photosynthetic characteristics of Turpan grape cultivated in greenhouses and open field to provide a scientific basis for the high-quality and high-yield cultivation of grape.[Method] Two precocious grape varieties as experimental materials were cultivated in greenhouses and open field,and their net photosynthetic rates (Pn),photo-response curves and CO2 response curves were determined using Li-400XT portable photosynthesis system.[Result] The leaf Pn of the two varieties cultivated in open field was higher than that in greenhouse.The Pn of Hongqitezao cultivated in open field was the highest,up to 19.79 μmol/(m2-s);in the photo-response curves,Hongqitezao cultivated in greenhouse had the largest Pnmax and apparent quantum yield (AQY),while the Flame Seedless in greenhouse had the smallest light compensation point (LCP).The light saturation point (LSP) value of greenhouse cultivation was higher than that of open field cultivation.in the CO2 response test,the dark respiration rate (Rd) and Pnmax of greenhouse cultivation were higher than those of open field cultivation,and the carboxylation efficiency (CE) of greenhouse cultivation was lower than that of open field cultivation;the CO2 compensation point (CCP) and CO2 saturation point (CSP) of greenhouse cultivation were lower than those of open field cultivation.[Conclusion] The utilization of elevated light in greenhouse cultivation was more efficient than in open field cultivation;however,the utilization of elevated CO2 in greenhouse cultivation was weaker than tin open field cultivation.
关键词
温室栽培/露地栽培/光合特性/光响应曲线/CO2响应曲线Key words
Greenhouse cultivation/Open field cultivation/Photosynthetic characteristics/Photo-response curve/CO2 response curve引用本文复制引用
基金项目
新疆维吾尔自治区科技计划项目(201130102-1)
现代农业产业技术体系专项(CARS-30)
新疆维吾尔自治区果树重点学科基金()
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据