Determination of photosynthetic parameters in two seawater- tolerant vegetables

• Published in: Chinese journal of oceanology and limnology 2016-03, Vol.34 (2), p.412-415
• Main Author: 邱念伟 周峰 刘倩 赵文倩
• Format: Article
• Language: English
• Subjects: Body organs; Carbon dioxide; Chemical analysis; Earth and Environmental Science; Earth Sciences; Leaf area; Leaves; Light effects; Marine; Mathematical analysis; Morphology; Oceanography; Parameters; Photosynthesis; Plant tolerance; Plants; Plants (botany); S4 Coastal Biotechnology; Salicornia bigelovii; Seawater; Suaeda salsa; Vegetables; Water analysis; 传统方法; 光合参数; 参数测定; 响应曲线; 海水蔬菜; 盐地碱蓬; 耐盐; 菲亚特
• ISSN: 0254-4059; 2096-5508; 1993-5005; 2523-3521
• DOI: 10.1007/s00343-015-4337-x

It is difficult to determine the photosynthetic parameters of non-fiat leaves/green stems using photosynthetic instruments, due to the unusual morphology of both organs, especially for Suaeda salsa and Salicornia bigelovii as two seawater-tolerant vegetables. To solve the problem, we developed a simple, practical, and effective method to measure and calculate the photosynthetic parameters （such as PN, gs, E） based on unit fresh mass, instead of leaf area. The light/COftemperature response curves of the plants can also be measured by this method. This new method is more effective, stable, and reliable than conventional methods for plants with non-flat leaves. In addition, the relative notes on measurements and calculation of photosynthetic parameters were discussed in this paper. This method solves technical difficulties in photosynthetic parameter determination of the two seawater-tolerant vegetables and similar plants.