广西科学2012，Vol.19Issue(2)：201-204,4.
金花茶与其伴生植物光合特性的比较研究
Comparative Study on Photosynthetic Characteristics of Camellia nitidissima and Its Accompanying Species
摘要
Abstract
Photosynthetic characteristics of leaves mCamellia nitidissima and its accompanying species Psychotria asiatica and Machilus chinensis located in Fangcheng National Camellia Natural Reserve were studied with LI-6400 portable photosynthesis system. Comparative study was conducted in photosynthetic characteristics of Camellia nitidissima and accompanying species. The gas exchange was measured in the field with LI-6400 Portable Photosynthesis (Ll-Cor Inc. ,USA). The results showed that the PPFD -saturated photosynthetic rate,light saturation point and apparent quantum yield of C. Nitidissima were significantly lower than that of two accompanying species,but it's light compensation point was significantly higher than that of accompanying species. Under a majority of light, the net photosynthetic rate and transpiration rate of C. Nitidissima were lower than that of two accompanying species,and the water use efficiency was more higher. The conservative mode of water utility affected the increasing of the net photosynthetic rate of C. Nitidissima. C. Nitidissima was in a disadvantaged status in the community with lower photosynthetic capacity and narrower adaptable range of light than its neighboring species.关键词
金花茶/净光合速率/蒸腾速率/水分利用效率Key words
Camellia nitidissima, net photosynthetic rate, transpiration rate, water use efficiency分类
农业科技引用本文复制引用
熊忠臣,骆文华,王满莲,王代容,文香英..金花茶与其伴生植物光合特性的比较研究[J].广西科学,2012,19(2):201-204,4.基金项目
国家自然科学基金项目(31160137),广东省中国科学院全面战略合作项目(2009B091300137),广西科技成果转化和应用项目(桂科攻11233013-15),广西培养新世纪学术和技术带头人专项资金项目和国际植物园保护联盟(BGCI)项目(R4331)资助. （31160137）
