摘要
以15年生油栗（CastaneamollissimaCV.youli）为试验材料，对田间条件下板粟光合作用变化规律进行了研究，结果表明：板栗光合作用的年周期变化出现两个峰值，前期随着叶片的迅速生长，光合强度加强，7月达最高峰值19.13mgCO2dm-2h-1，9月以后迅速降低.日周期变化表现为两个高峰，第一个峰值出现于上午8：00～10：见点间，以后逐渐下降，下午16：00～18：00出现第二个高峰.光强影响叶片光合速率及其形态结构;光照强度高，叶片厚，光合能力强.
Under the condition offield area, the photosynthetic rates(Pn) in fifteen years old Chinese chestnut (Castanes mollossima CV. YouLi) were studied. The results showed that there were two peak values in the seasonal patterns of net photosynthetic rate in Chinese chestnut in May and July. There were also two peak values in the diurnal changes in net photosynthetic rate at 8,00～10. 00 and 16:00～18:00. The effects of light intensity on leaf development were also studied.
出处
《仲恺农业技术学院学报》
1997年第1期51-55,共5页
Journal of Zhongkai Agrotechnical College
关键词
板栗
光合作用
年变化
日变化
Chinese chestnut, photosynthetic rate, seasonal and diurnal changes
