摘要
采用LCPro+便携式光合测定系统,对耐冬山茶春季净光合速率、蒸腾速率、暗呼吸速率、水分利用效率、气孔导度的日变化规律进行了测定,结果显示3月、4月、5月的净光合速率值分别为3.62umolm-2s-1、3.55 umolm-2s-1、3.69 umolm-2s-1,5月>3月>4月,蒸腾速率、暗呼吸速率、气孔导度呈现相同的变化趋势。而水分利用效率分别为4月份>3月份>5月份。
Using the LCPro＋ , The net photosynthetic rate, transpiration rate, dark respiration, water use efficiency and stomata conductance were determined in March, April and May in the normal condition. The net photosynthetic rate were3.62umolm^-2s^-1 , 3.55umolm^-2s^-1, 3.69 umolm^-2s^-1. In May, The net photosynthetic rate, transpiration rate, dark respiration and stomata conductance is the best. but the best water use efficiency is in April, this research is good for its application.
出处
《山东林业科技》
2007年第2期30-31,29,共3页
Journal of Shandong Forestry Science and Technology
关键词
耐冬山茶
光合特性
日变化
＇ naidong＇ Camellia japonica
photosynthetic characters
day variety
