Volume 15, Issue 73 (vol. 15, no. 73 2026)
2026, 15(73): 65-76 |
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Mazloomi H, Abbasi R, Abbasian A, Pirdashti H, Emadi S M. Optimizing Peppermint (Mentha piperita L.) essential oil yield and quality: Roles of nitrogen, salicylic acid, and weed management. Plant Process and Function 2026; 15 (73) : 7
URL: http://jispp.iut.ac.ir/article-1-2215-en.html
URL: http://jispp.iut.ac.ir/article-1-2215-en.html
Hossein Mazloomi1 
, Rahmat Abbasi *1 , Arastoo Abbasian1 , Hematollah Pirdashti1 , Seyed Mostafa Emadi2
, Rahmat Abbasi *1 , Arastoo Abbasian1 , Hematollah Pirdashti1 , Seyed Mostafa Emadi2
1- Department of Agronomy, Faculty of Crop Sciences, Sari Agricultural Sciences and Natural Resources University, Sari 4818168984, Iran.
2- Department of Soil Science, Faculty of Crop Sciences, Sari Agricultural Sciences and Natural Resources University, Sari 4818168984, Iran.
2- Department of Soil Science, Faculty of Crop Sciences, Sari Agricultural Sciences and Natural Resources University, Sari 4818168984, Iran.
Abstract: (42 Views)
Peppermint has anti-inflammatory, antiseptic, and soothing properties due to its essential oil content. This plant is widely used in the pharmaceutical, cosmetic, and food industries and helps relieve stomachaches, headaches, and stress. The primary objective of this study was to evaluate the combined effects of nitrogen (N), salicylic acid (SA), and weed management on morphophysiological traits, essential oil content, and essential oil yield of peppermint. The present study was conducted under field conditions at Sari, Mazandaran Province, northern Iran, during the 2023–2024 growing season. In this research, a factorial arrangement within a randomized complete block design (RCBD) with three replications was conducted, which included three nitrogen (N) levels (0, 1.5, and 3 g L-¹), three salicylic acid (SA) levels (0, 1.5, and 3 mM), and two weed management practices (weeding vs. non-weeding). Results indicated that the increase in N and SA significantly enhanced plant height, chlorophyll content, biological yield, and essential oil content. Notably, the treatment with 3 g/L of N and 3 mM of SA without weed control showed the best results in increasing essential oil yield (169 kg ha⁻¹) and essential oil content (2.65%). This treatment also improved the absorption of nutrients such as N, phosphorus (P), and potassium (K), while increasing the plant's resistance to environmental stresses. These findings suggest that optimal management of N and SA, even under mild weed stress, can significantly enhance both the quality and quantity of peppermint yields. Therefore, this research can serve as a valuable reference for farmers and researchers aiming for sustainable production of this medicinal plant with reduced synthetic inputs.
Article number: 7
Type of Study: Research |
Subject:
Plant Growth Regulators
Received: 2025/05/18 | Accepted: 2026/04/7 | Published: 2026/07/27
Received: 2025/05/18 | Accepted: 2026/04/7 | Published: 2026/07/27
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