Effects of Exogenous Abscisic Acid on Photosynthesis of Lettuce under NaCl Stress

DOI

10.2991/iceep-16.2016.62How to use a DOI?

Keywords

Abscisic acid; NaCl stress; Lettuce; Photosynthesis

Abstract

Soil salinization has become a global problem. This test used the method of spraying different concentrations (1, 5, 10, 20 mol-L-1) of ABA to lettuce leaves respectively, with spraying water as control, to discuss the effects of exogenous abscisic acid (ABA) on photosynthesis of lettuce under NaCl stress. The results showed that after spraying ABA, net photosynthetic rate (Pn), stomatal conductance (Gs), water use efficiency (WUE), light use efficiency (LUE), transpiration rate (Tr) and CO2 concentration of intercellular (Ci) of lettuce have improved in varying degrees, and when the ABA concentration was 5 mol-L-1, enhanced by 33.67% (P <0.05), 24.38% (P <0.05), 7.47 % (P <0.05), 33.67% (P <0.05), 56.66% (P <0.05) and 12.57% (P <0.05), respectively compared with CK. Therefore, spraying ABA can significantly improve photosynthetic capacity of lettuce leaves under NaCl stress, and the best results appear in 5 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  - Zesheng Yan
AU  - Qin Li
AU  - Yi Tang
PY  - 2016/11
DA  - 2016/11
TI  - Effects of Exogenous Abscisic Acid on Photosynthesis of Lettuce under NaCl Stress
BT  - Proceedings of the 2016 5th International Conference on Energy and Environmental Protection (ICEEP 2016)
PB  - Atlantis Press
SP  - 360
EP  - 364
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceep-16.2016.62
DO  - 10.2991/iceep-16.2016.62
ID  - Yan2016/11
ER  -