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Water 2016, 8(4), 127;

Effects of Irrigation with Saline Water on Crop Growth and Yield in Greenhouse Cultivation

Institute of Green Bio Science and Technology, Seoul National University, Gangwon 25354, Korea
Water Quality Assessment Research Division, National Institute of Environmental Research, Incheon 22689, Korea
Author to whom correspondence should be addressed.
Academic Editor: Miklas Scholz
Received: 11 February 2016 / Revised: 28 March 2016 / Accepted: 29 March 2016 / Published: 1 April 2016
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Since the salinity of irrigation water is a critical constraint to the production of certain vegetable crops, salinity has been considered as one of the most important factors of irrigation water. The objective of this study was to investigate the response of lettuce and Chinese cabbage to various salinity levels of irrigation water in greenhouse cultivation. A pot experiment was conducted with different salinities under a glasshouse condition in Korea. A completely randomized experimental design was used with three replications. The analysis results of crop growth and yield of lettuce and Chinese cabbage indicated that the factors that were more significantly affected by saline irrigation water were crop yields rather than crop components such as number of leaves, leaf length, and leaf width. In this study, the point of salt concentration during an increase in salinity levels of irrigation water (ECw) at which yield starts to decline was determined to be 0.9 and 1.5 dS/m for lettuce and Chinese cabbage, respectively. Furthermore, the present study demonstrated that the continuous irrigation of saline water under greenhouse conditions could lead to a significant increase in electric conductivity (ECe) level and Na+ concentration in soil, as well as Na+ concentration in leaves of crops. View Full-Text
Keywords: irrigation water; salinity; lettuce; Chinese cabbage; salt tolerance irrigation water; salinity; lettuce; Chinese cabbage; salt tolerance
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Kim, H.; Jeong, H.; Jeon, J.; Bae, S. Effects of Irrigation with Saline Water on Crop Growth and Yield in Greenhouse Cultivation. Water 2016, 8, 127.

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