Volume 18, Number 67 (Spring 2014)                   JWSS 2014, 18(67): 339-354 | Back to browse issues page


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N. Besharat, A. Tajabadi Pour, V. Mozafari. Effect of Phosphorus and Water Stress on Growth, some Water Relations and Plant Nutrient Concentration of Pistachio Seedlings in Greenhouse Conditions. JWSS. 2014; 18 (67) :339-354
URL: http://jstnar.iut.ac.ir/article-1-1264-en.html

Abstract:   (3322 Views)
To study the effects of soil phosphorus (P) application on growth and water relations and nutrient concentration of pistachio seedlings (Badami-e-Zarand) under water stress, a greenhouse experiment was conducted. Treatments were arranged in a factorial manner as a completely randomized design with three replications. Treatments consisted of six P levels (0, 30, 60, 90, 120 and 150 mg P Kg-1 soil as H3PO4) and three irrigation intervals (2, 4 and 8 days). Results showed that as water stress increased, growth parameters significantly decreased. As irrigation interval was increased to 8 days, shoot and root dry weights, shoot/root ratio, leaf area and leaf number and stem height decreased. Photosynthesis parameters were significantly decreased by increasing water stress. Also, P and Zn concentrations decreased as irrigation interval increased. Analysis of variance indicated that P application had no significant effect on growth parameters, transpiration rate and photosynthesis. It seems that Olsen extractable P (5.35 mg kg-1 soil) was sufficient for optimum growth of pistachio seedlings and thus, no growth responses were observed from P application in this experiment. Application of phosphorus significantly increased P and decreased Zn concentrations.
Full-Text [PDF 185 kb]   (808 Downloads)    
Type of Study: Research | Subject: Ggeneral
Received: 2011/11/9 | Accepted: 2013/08/4 | Published: 2014/06/16

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