西南林业大学学报2012，Vol.32Issue(4)：100-102,3.DOI:10.3969/j.issn.2095-1914.2012.04.021
蛇皮果幼株净光合速率初步研究
Characteristics of Net Photosynthesis Rate of Salacca zalacca Saplings
摘要
Abstract
Net photosynthesis rate ( Pn ) of 1 -2 years old Salacca zalacca saplings was measured with CIRAS -2 portable photosynthesis system. The results showed that the first top leaf had the lowest Pn value, while the second leaf to the top had a highest Pn value for both 1yr and 2yr S. zalacca saplings. The Pn value decreased gradually from the second leaf to the top toward to the lowest one. The value of saturation PAR and compensation PAR of the second leaf to the top of 1yr old sapling was 1 500 μmol/(m2 · s) and 50 μmol/(m2 · s) respectively. There were two peaks in the diurnal Pn variation curve during the day time, which occurred at 10 am in the morning and at 2 pm or 4 pm in the afternoon.关键词
蛇皮果/幼株/净光合速率Key words
Salacca zalacca/ sapling/ net photosynthesis rate分类
农业科技引用本文复制引用
李荣生,尹光天,杨锦昌,邹文涛,林彦,李建光,张帅..蛇皮果幼株净光合速率初步研究[J].西南林业大学学报,2012,32(4):100-102,3.基金项目
中国林业科学研究院基本科研业务费专项资金(RITFKYYW2010-02)资助 （RITFKYYW2010-02）
国家林业局948引进项目(2007-4-11)资助. （2007-4-11）
