Effects of Exogenous Melatonin on Photosynthetic Characteristics of Eggplant Seedlings under Low Temperature and Weak Light Stress

DOI

10.2991/icmse-15.2015.130How to use a DOI?

Keywords

Melatonin; Photosynthetic characteristics; Eggplant (Solanum melongena L.); Low temperature and weak light stress

Abstract

Eggplant cultivar ‘Changhong’ was subjected to low temperature treatment of 15/10 (day/night) in the artificial climate chamber. The effects of exogenous melatonin (MT) on the photosynthetic of leaves under low temperature and weak light stress was investigated. The results showed that with the increasing of melatonin concentration, the net photosynthetic rate (Pn), stomatal conductance (Gs), transpiration rate(Tr), and light use efficiency (LUE) was enhanced first, and then decreased, the CO2 concentration of intercellular (Ci) remained relatively stable, and water use efficiency(WUE) showed a downward trend. Thus, melatonin could siganificantly improve the photosynthetic capacity of eggplant under low temperature and weak light stress, and 200 mol•L- 1 was the best concentration.

Copyright

© 2015, 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  - Xuena Yu
AU  - Juan He
AU  - Huanxiu Li
PY  - 2015/12
DA  - 2015/12
TI  - Effects of Exogenous Melatonin on Photosynthetic Characteristics of Eggplant Seedlings under Low Temperature and Weak Light Stress
BT  - Proceedings of the 2015 6th International Conference on Manufacturing Science and Engineering
PB  - Atlantis Press
SP  - 724
EP  - 728
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmse-15.2015.130
DO  - 10.2991/icmse-15.2015.130
ID  - Yu2015/12
ER  -