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Showing 2 results for Hashemi Garmdareh
Volume 0, Issue 0 (ARTICLES IN PRESS 2024)
Abstract
This study investigated the effects of irrigation strategies including sustained deficit irrigation (SDI) and partial root-zone drying (PRD) on the growth, physiology, and photosynthesis of strawberry plants in order to maximize crop productivity while maintaining water resources. This experiment has four irrigation strategies (FI: control (full irrigation volume), PRD1 (full irrigation volume), PRD2 (50% of FI), and SDI (50% of FI) and two fertilizer strengths (EC1 and EC2) with four replicates per treatment. Gas exchange, leaf chlorophyll index, stomatal conductance (gs), and maximum quantum efficiency of PSII photochemistry (F'v/F'm) were assessed on three occasions throughout the experimental duration in order to monitor the impact of different irrigation strategies on photosynthesis. Yield water use efficiency, as well as TSS (total soluble solids) and TA (total titratable acidity), two fruit quality-related parameters, were also measured. In the final stage, PRD2-EC2 photosystem II efficiency was 9% higher than SDI-EC2. Also, the PRD strategy effectively influenced and regulated the adjustment of stomatal conductance (gs). In diluted fertilizer (EC2), yield WUE of PRD1 and SDI performed 15% and 30.7% lower than FI-EC2. However, PRD2-EC2 treatment increased 72.5% more than the control. Our observations of leaf and fruit deficiencies showed that the PRD strategy had long-term benefits for the plant and reduced water consumption. However, to establish a sustainable irrigation strategy, the nutrient solution must be adjusted to control growth and photosynthesis attributes.
Volume 16, Issue 97 (March 2020)
Abstract
Rice is one of the most widely consumed grains in the world and is widely used in the diet of people. Today, rice contamination with heavy metals is one of the problems confronting humanity. Therefore, the purpose of this study was to evaluate the effect of soaking and cooking in the presence of chelating agents i.e., potassium tartrate and citrate on the amount of Cadmium reduction of three types of imported rice (India, Thailand, and America). Measurements were carried out with atomic absorption with three replications. The difference in mean was done at Duncan's 5% level. The cadmium of imported rice was higher than the standard values. Cadmium of imported rice from highest to lowest was America, Thailand, and India that was 86.23, 85.93 and 80.07 ppb, respectively. Soaking in the presence of chelating agent but cooking in water without chelating agents(S-chelating agents), in comparison to soaking in water without a chelating agent but cooking in the presence of chelating agents(C-chelating agents), had no significant difference in cadmium elimination(p>0.05). Soaking and cooking of rice in the presence of chelating agents(SC-chelating agents) reduced Cadmium to higher than 93 percent (97.58 for potassium tartrate in Thailand rice and 93.46 for potassium citrate in India rice). Tartrate chelating agents in comparison to citrate had a significant effect in cadmium elimination for imported rice (p<0.05). Finally, the sensory evaluation showed that there was no significant difference between all treatments(p>0.05).
