Effect of Nitrogen and Nitrate: Ammonium Ratios on Growth Indices and Essential Oil Content of Origanum vulgare ssp. Gracile under Saline Conditions

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Nematzade Sajad; SEPEHR EBRAHIM; RAHIMI AMIR

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Journal: APPLIED SOIL RESEARCH Year:2019 | Volume:6 | Issue:4 Page(s): 31-44

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Title

Effect of Nitrogen and Nitrate: Ammonium Ratios on Growth Indices and Essential Oil Content of Origanum vulgare ssp. Gracile under Saline Conditions

Author(s)

Nematzade Sajad | SEPEHR EBRAHIM | RAHIMI AMIR | Issue Writer Certificate

Keywords

AmmoniumQ1

NitrateQ2

NitrogenQ1

OriganumQ1

SalinityQ1

Abstract

In order to evaluate effects of different levels of Nitrogen and different ratios of Nitrate: Ammonium under saline and non-saline conditions on growth indices, essential oil content and yield of Origanum vulgare ssp. Gracile, a factorial experiment was carried out in randomized complete block design (RCBD) with third factors including Nitrogen levels (5, 10, and 15 mM), Nitrate: Ammonium ratios (100: 0, 87. 5: 12. 5, 75: 25, 50: 50, 25: 75, 0: 100), and Salinity levels (0 and 50 mM NaCl) in three replications. The results showed that under non-saline condition, the highest fresh weight (33. 34 g), dry weight (8. 16 g), and essential oil yield (158. 9 mg/pot) were obtained by 15 mM Nitrogen and 75: 25 Nitrate: Ammonium ratio. Under saline condition, all the three above-mentioned traits were reduced in all treatments however under this condition, the highest fresh weight (33. 34 g), dry weight (4. 56 g) and essential oil yield (94. 35 mg/pot) were observed by 15 mM Nitrogen and 50: 50 Nitrate: Ammonium ratio. The main effects of all treatments on essential oil content were significant (p ≤ 0. 01); so that the highest essential oil content obtained by 15 mM Nitrogen, 75: 25 Nitrate: Ammonium ratio, and 50 mM Salinity. In conclusion, 15 mM Nitrogen with 75: 25 and 50: 50 Nitrate: Ammonium are recommended for non-saline and saline conditions, respectively.

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APA: Copy

Nematzade, Sajad, SEPEHR, EBRAHIM, & RAHIMI, AMIR. (2019). Effect of Nitrogen and Nitrate: Ammonium Ratios on Growth Indices and Essential Oil Content of Origanum vulgare ssp. Gracile under Saline Conditions. APPLIED SOIL RESEARCH, 6(4 ), 31-44. SID. https://sid.ir/paper/261836/en

Vancouver: Copy

Nematzade Sajad, SEPEHR EBRAHIM, RAHIMI AMIR. Effect of Nitrogen and Nitrate: Ammonium Ratios on Growth Indices and Essential Oil Content of Origanum vulgare ssp. Gracile under Saline Conditions. APPLIED SOIL RESEARCH[Internet]. 2019;6(4 ):31-44. Available from: https://sid.ir/paper/261836/en

IEEE: Copy

Sajad Nematzade, EBRAHIM SEPEHR, and AMIR RAHIMI, “Effect of Nitrogen and Nitrate: Ammonium Ratios on Growth Indices and Essential Oil Content of Origanum vulgare ssp. Gracile under Saline Conditions,” APPLIED SOIL RESEARCH, vol. 6, no. 4 , pp. 31–44, 2019, [Online]. Available: https://sid.ir/paper/261836/en

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