Effects of Exogenous Melatonin on Photosynthetic Characteristics of Capsella bursa-pastoris Seedlings under Salt Stress
- 10.2991/iceesd-18.2018.61How to use a DOI?
- Capsella bursa-pastoris; Melatonin; Salt stress; Photosynthetic characteristics
A pot experiment was conducted to study the effects of spraying with 5 different concentrations (0, 50, 100, 150, 200 μmol·L-1) of exogenous melatonin (MT) on photosynthetic characteristics of C. bursa-pastoris seedlings under 50 mmol·L-1 NaCl stress. The results showed that spraying exogenous MT significantly increased the net photosynthetic rate (Pn), transpiration rate (Tr) and stomatal conductance (GS) of C. bursa-pastoris seedlings and all increased at first then decreased. The changes trend of the intercellular CO2 concentration (Ci) in the C. bursa-pastoris seedlings were contrary to that of Pn, Tr and Gs, and decreased with the increase of MT concentration. Therefore, spraying exogenous MT can improve the photosynthetic capacity of C. bursa-pastoris seedlings, which will help to improve the adaptability of C. bursa-pastoris, and the best concentration is 150 μmol·L-1.
- © 2018, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Juan He AU - Guochao Sun AU - Yi Tang PY - 2018/05 DA - 2018/05 TI - Effects of Exogenous Melatonin on Photosynthetic Characteristics of Capsella bursa-pastoris Seedlings under Salt Stress BT - Proceedings of the 2018 7th International Conference on Energy, Environment and Sustainable Development (ICEESD 2018) PB - Atlantis Press SP - 358 EP - 361 SN - 2352-5401 UR - https://doi.org/10.2991/iceesd-18.2018.61 DO - 10.2991/iceesd-18.2018.61 ID - He2018/05 ER -