植物学报2018，Vol.53Issue(2)：227-237,11.DOI:10.11983/CBB17136
补充蓝光对设施栽培油桃光合性能及糖酸积累的影响
Effect of Blue Light on Photosynthetic Performance and Accumulation of Sugar and Organic Acids in Greenhouse Nectarine
摘要
Abstract
With the nectarine variety Shuguang as test material and blue light set artificially,the photosynthetic performance and the accumulation of sugar and acid in leaves and fruits were examined,and diurnal changes of the stomata in five key growth periods were observed.Blue light increased the net photosynthetic rate and the contents of chlorophyll a and b.The ratio of chlorophyll a/b was decreased and the leaf area increased.The opening time of the stomata was advanced,and maximum opening was earlier and closing time hysteretic.Fructose,glucose and sorbitol were the main assimilates in leaves,with the highest content being sorbitol.Fructose,glucose,sorbitol and sucrose were the main assimilates in fruit,and sucrose was the main soluble sugar at fruit maturity.As compared with the control,blue light conferred lower content of the three assimilates in leaves,whereas the content of total sugar and sucrose in fruit was higher,which suggests that blue light enhanced the ability to transfer photosynthetic products from leaves to fruit.Oxalic acid was the main organic acid in both leaves and fruits.The content of organic acid under blue light in leaves was decreased,and the sugar to acid ratio was significantly increased,by 30.5％.The key period of peaches improving the sugar to acid ratio under blue light was the late hard nucleus period.Supplementing blue light could be a technical measure to improve photosynthetic performance and fruit quality and could be further applied in the cultivation of greenhouse fruit trees.关键词
蓝光/设施油桃/有机酸/光合同化物/光合性能Key words
blue light/greenhouse nectarine/organic acid/photo-assimilate/photosynthetic performance引用本文复制引用
赵雪惠,肖伟,郭建敏,高东升,付喜玲,李冬梅..补充蓝光对设施栽培油桃光合性能及糖酸积累的影响[J].植物学报,2018,53(2):227-237,11.基金项目
国家自然科学基金(No.31601706)、山东省自然科学基金(No.ZR2016CM09)和山东省现代农业产业技术体系水果产业创新团队——栽培与设施装备(No.SDAIT-03-022-05) （No.31601706）
