Soaking Seeds with Exogenous Melatonin Improve Photosynthetic Characteristics of Radish under Aluminum Stress

DOI

10.2991/aeece-16.2016.14How to use a DOI?

Keywords

Melatonin; Soaking seeds; Radish; Photosynthetic characteristics

Abstract

A pot experiment was conducted to study the effects of exogenous melatonin (MT) on photosynthetic characteristics of radish under aluminum (Al) stress. Five treatments were used in the experiment: seeds were soaked with 0 (CK), 50, 100, 150 and 200 mol-L-1 concentrations of melatonin solution. The results showed that melatonin enhanced net photosynthetic rate (Pn) and of radish significantly. Compared with CK, low concentration of MT enhanced transpiration rate (Tr) and stomatal conductance (Gs) of radish under Al stress. However when concentration of MT is too high, Tr and Gs of radish decreased. The result of light use efficiency (LUE) and water use efficiency (WUE) were the same as Pn. Soaking different concentrations of melatonin on radish under aluminum stress has not significant effect on CO2 concentration of intercellular (Ci). Therefore, melatonin could use to enhance the photosynthetic ability of radish, which would help to improve the adaptability of radish, and the best concentration of melatonin was 100 mol-L-1.

Copyright

© 2016, 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/).

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TY  - CONF
AU  - Yi Tang
AU  - Fengyun Lei
AU  - Enze Zhang
AU  - Huanxiu Li
PY  - 2016/07
DA  - 2016/07
TI  - Soaking Seeds with Exogenous Melatonin Improve Photosynthetic Characteristics of Radish under Aluminum Stress
BT  - Proceedings of the 2016 2nd International Conference on Advances in Energy, Environment and Chemical Engineering (AEECE 2016)
PB  - Atlantis Press
SP  - 64
EP  - 67
SN  - 2352-5401
UR  - https://doi.org/10.2991/aeece-16.2016.14
DO  - 10.2991/aeece-16.2016.14
ID  - Tang2016/07
ER  -