Journal of Food, Agriculture and Environment

Effects of salinity on morphological and physiological changes and yield of tomato in hydroponics system

Author(s):

Rasool Azarmi ^*, Rahim Didar Taleshmikail, Abolfazl Gikloo

Recieved Date: 2009-12-18, Accepted Date: 2010-04-07

Abstract:

In this study the effect of salinity at different levels on growth, yield and quality of greenhouse tomato (Lycopersicon esculentum Mill.) grown in hydroponics culture was evaluated. Salinity treatments were applied at EC of 2.5, 3, 4, 5 and 6 dS m ^-1 by adding NaCl to standard nutrient solution. The results indicated that plant height and leaf number were significantly (P≤0.05) decreased with increasing salinity. Total leaf area at EC of 6 dS m^-1 decreased by 29% in comparison to 2.5 dS m^-1. Chlorophyll content was significantly (P≤0.05) reduced at EC of above 3 dS m^-1. Stomatal conductance in nutrient solution with EC of 6 dS m^-1, reduced by 28.2% compared to 2.5 dS m^-1. Fruit fresh weight at EC of 6 dS m^-1 decreased by 29% in comparison to 2.5 dS m^-1. Total fruit yield reduced by 8.7, 21.7, 36 and 48.9% at EC of 3, 4, 5 and 6 dS m^-1, respectively, compared with 2.5 dS m^-1. Total soluble solid was significantly (P≤0.05) increased at EC of above 3 dS m^-1. Fruit dry weight at EC of 6 dS m^-1 increased by 8.7% compared with 2.5 dS m^-1. Titratable acidity increased by 2.7, 9.9, 20.3 and 28.9% at EC of 3, 4, 5 and 6 dS m^-1, respectively, compared with 2.5 dS m^-1. The results of this experiment showed that growth parameters and yield reduced with increasing salinity, but qualitative properties were improved by salinity.

Keywords:

Salinity, tomato, morphological, physiological, yield, hydroponics

---

Journal: Journal of Food, Agriculture and Environment
Year: 2010
Volume: 8
Issue: 2
Category: Agriculture
Pages: 573-576

---

Full text for Subscribers

---

Information:

Note to users

The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.

Article purchasing

If you like to purchase this specific document such as article, review or this journal issue, contact us. Specify the title of the article or review, issue, number, volume and date of the publication. Software and compilation, Science & Technology, all rights reserved. Your use of this website details or service is governed by terms of use. Authors are invited to check from time to time news or information.

---

Purchase this Article:   20 Purchase PDF Order Reprints for 15

---

Share this article :