Effect of different ratio of NO3: NH4 on growth and functional of the winter cherry (physalis alkekengi)

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Bahar Devin Najmeh; TABATABAEI SEYED JALAL

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Journal: HORTICULTURAL PLANT NUTRITION Year:2019 | Volume:2 | Issue:1 Page(s): 51-66

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Title

Effect of different ratio of NO3: NH4 on growth and functional of the winter cherry (physalis alkekengi)

Author(s)

Bahar Devin Najmeh | TABATABAEI SEYED JALAL | Issue Writer Certificate

Keywords

Nitrogen

nitrate

Ammonium

Hydroponics

Abstract

Introduction: The winter cherry is a species of the family Solanaceae that have several names in Iran. This plant is effective in numerous diseases such as diabetes mellitus, cancer, hepatitis, Asthma, cough, and blood purification in the kidneys. The greatest amount of Nitrogen used by the plants is absorbed in the form of nitrate and Ammonium ions. According to previous studies, an appropriate ammonia/nitrate ratio is required for an optimal growth of the plant. In various plants, the ratio differs. The effect of each of them depends on the growth stage of the plant, the amount of nutrients absorption, plant species, and nitrate /Ammonium ratio. The ratio of nitrate/Ammonium is very important in preparing nutrients solutions and regulating plant growth. Regulating the ratio of these two ions affects the growth and physiology of the plant, and more specifically, it affects the soils without pH in growth medium. In preparing the nutrient solutions, hence, the ratio of these two ions should be adjusted according to the growth season and plant type. Materials and Methods: This study was carried out with three replications in a completely randomized design. The test factor included five different nitrate/Ammonium ratios (0: 100, 25: 75, 50: 50, 75: 25, 100: 0). At the six-leaf stage, the treatments were manually administered on a daily basis at a rate of 500 ml until the physiological development of the fruits was achieved. At the end, growth, physiological, functional, and qualitative parameters were evaluated. Data was analyzed by SAS V9. 2 statistical software. Results and Discussion: The results showed the significant effect of the treatments on plant growth in terms of dry weight of aerial parts, plant height, leaf number, leaf area and stem diameter (Table 2). Maximum dry weight of aerial part, leaf number, and leaf area were observed at 50: 50 treatment (Table 3). Treatments had a significant effect on the concentration of the elements in the leaf (Table 4), so that the highest amount of Nitrogen was observed in 25: 75 and 0: 100 and the lowest amount of Nitrogen was observed in ratio100. The highest concentrations of calcium and potassium elements were observed with 100% nitrate consumption and the lowest concentrations were observed with 100% Ammonium consumption (Table 5). The treatment had significant effect on plant function. Increasing the amount of Ammonium from 50 to 100% in the nutrition solution reduced the function in terms of fruit weigh by 67% and the number of fruits by 57%. Fruits in treatment 75: 25 and 50: 50 had the largest length and fruits in treatment 100% nitrate, 75: 25 and 50: 50 had the largest diameters (table 5). Different ratios of nitrate/Ammonium had significant effect on qualitative features such as amount of the soluble solids, titratable acidity, and vitamin C (Table 6). The lowest amount of vitamin C and acidity were observed in treatments with more than 50% Ammonium (Table 7). Antioxidant, lycopene and chlorophyll levels were not affected by treatments. The results showed that 75: 25 and 50: 50 ratios had positive effect on plant growth and the use of nitrate or Ammonium as a Nitrogen solution is not recommended as a sole source in solutions for growing Physalis.

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APA: Copy

Bahar Devin, Najmeh, & TABATABAEI, SEYED JALAL. (2019). Effect of different ratio of NO3: NH4 on growth and functional of the winter cherry (physalis alkekengi). HORTICULTURAL PLANT NUTRITION, 2(1 ), 51-66. SID. https://sid.ir/paper/268532/en

Vancouver: Copy

Bahar Devin Najmeh, TABATABAEI SEYED JALAL. Effect of different ratio of NO3: NH4 on growth and functional of the winter cherry (physalis alkekengi). HORTICULTURAL PLANT NUTRITION[Internet]. 2019;2(1 ):51-66. Available from: https://sid.ir/paper/268532/en

IEEE: Copy

Najmeh Bahar Devin, and SEYED JALAL TABATABAEI, “Effect of different ratio of NO3: NH4 on growth and functional of the winter cherry (physalis alkekengi),” HORTICULTURAL PLANT NUTRITION, vol. 2, no. 1 , pp. 51–66, 2019, [Online]. Available: https://sid.ir/paper/268532/en

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