王顺才;呼丽萍;

• 1:天水师范学院生命科学与化学学院
• 2:甘肃省大樱桃工程技术研究中心

摘要(Abstract)：

【目的】研究温室栽培条件下欧洲甜樱桃品种‘红灯’和‘美早’的光合特性。【方法】采用LI-6400便携式光合仪,测定温室栽培‘红灯’和‘美早’叶片的光合日变化及其光响应曲线,分析净光合效率(Pn)、蒸腾速率(Tr)与各生理生态因子的相关性。【结果】温室内‘红灯’Pn日变化呈单峰曲线,‘美早’Pn日变化呈三峰曲线;‘红灯’Pn与光合有效辐射(PAR)呈显著正相关(P<0.05),Tr与PAR、气温(Ta)及叶温(Tl)呈极显著正相关(P<0.01),而‘美早’Pn、Tr与其他生理生态因子的相关性均不显著;温室内‘红灯’的光补偿点(LCP)及光饱和点(LSP)均高于‘美早’。【结论】温室内‘红灯’虽有较宽的光适应范围,但在低光照条件下其Pn明显低于‘美早’,PAR是影响温室‘红灯’Pn的主要环境因子。

关键词(KeyWords)： 欧洲甜樱桃;温室;光合作用;光响应曲线

Abstract:

Keywords:

基金项目(Foundation): 甘肃省科技厅科技成果转化资金计划(1105NCNE109);; 天水师范学院科研资助项目(TSA1111)

作者(Author): 王顺才;呼丽萍;

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