Photosynthetic Characteristics of Three Fig Cultivars in Nyingchi, Tibet

• 作者: GAO Yi LIU Xuesen XING Zhen
• 来源期刊: 景观研究:英文版
• 学科: 工学
• 关键词: FIG PHOTOSYNTHESIS CULTIVAR DAILY variation Nyingchi
• 年，卷（期）: 2019,（4）
• 页码范围: 128-130
• 页数: 3页
• 分类号: TU

摘要

The photosynthetic characteristics of three excellent fig cultivars introduced, Branswick, Qingpi and Xinjiang Zaohuang, were compared in the paper, in order to provide reference for the cultivation and breeding of different fig cultivars in Tibet. The daily variation of photosynthetic parameters of the three excellent fig cultivars, Branswick, Qingpi and Xinjiang Zaohuang, which were introduced and cultivated by XiZang Agriculture and Animal Husbandry College in Bayi District, Nyingchi City, Tibet, were measured and compared. The results showed that the net photosynthetic rates (Pn) of three fig cultivars were Qingpi > Branswick > Xinjiang Zaohuang, and the daily variation curves of net photosynthetic rate were all of unimodal pattern. The daily variation curves of transpiration rate (Tr), water utilization efficiency (WUE) and efficiency for solar energy utilization (Pn/Par) of different fig cultivars showed unimodal pattern;the daily variation curve of intercellular CO2 content (Ci) showed decline pattern;the daily variation curve of stomatal conductance (Gs) showed bimodal pattern;Pn had extremely positive correlation with Tr, WUE, Gs, Par, Pn/Par and Ta.