Paper Information

Journal:   JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY)   MAY-JUNE 2012 , Volume 26 , Number 2; Page(s) 451 To 459.
 
Paper: 

EVALUATION OF THE EFFECTS OF DIFFERENT IRRIGATION WATER SALINITY ON QUALITY AND QUANTITY INDICES OF CHERRY TOMATO IN HYDROPONICS

 
 
Author(s):  FAALIAN A.*, ANSARI H., KAFI M.
 
* DEPARTMENT OF WATER ENGINEERING, FACULTY OF AGRICULTURE, FERDOWSI UNIVERSITY OF MASHHAD
 
Abstract: 

In order to investigate the effect of irrigation water salinity on Quality & Quantity Indices of Cherry Tomato (cv. Halil) in Hydroponics, a factorial experiment was conducted on the basis of a randomized complete block design with electrical conductivity at four levels of (A) 0.1, (B) 1.3, (C) 3.2 and (D) 5 dSm-1 and four replications. Growth indices like total yield, mean fruit weight and dry matter percentage, leaf area index (LAI), dry matter percentage of leaf, height and dry weight of plant, EC& PH of fruit juice, total soluble solids of fruit (TSS) and Vitamin C content of fruit juice were recorded during 9 months experiment since September 2010 to May 2011. Results indicated that total yield, mean fruit weight, leaf area index (LAI), dry matter weight of leaf and plant, plant height and fruit juice PH were significantly reduced with increasing salinity level, while dry matter percentage of fruit, EC, total soluble solids (TSS) and Vitamin C content of fruit juice were increased. Also, according to the results the highest total yield was found by treatment (A) with 6.78 kg/plant. Treatments (B) and (C) showed no significant differences at 5% probability level. Results demonstrated that in zones like the region of this research without fresh water that it’s not feasible-because of any reasons among them inappropriate price of crop production from an economical point, energy costs or water resources shortage- to use water refining systems, it’s possible to plant the cherry tomato in soilless culture systems by water resources with salinity level up to 3.5 dsm-1. Finally, the lowest total yield was found by treatment (D) with 3.62 kg/plant that was significantly different with all of other treatments.

 
Keyword(s): HYDROPONICS, IRRIGATION, NUTRIENT SOLUTION, SALINITY, TOMATO, WATER
 
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