Utilization of superabsorbent nano-polymer, grow-more, iron and zinc fertilizers on the important morpho-physiological and phytochemical properties of Dragonhead (Dracocephalum moldavica L.) under drought stress

Yadegari, Mehrab

doi:10.30470/jmpb.2025.2051915.1119

Utilization of superabsorbent nano-polymer, grow-more, iron and zinc fertilizers on the important morpho-physiological and phytochemical properties of Dragonhead (Dracocephalum moldavica L.) under drought stress

Document Type : Original Article

Author

Mehrab Yadegari

Research Center of Nutrition and Organic Products (R.C.N.O.P), Shahrekord Branch, Islamic Azad University, Shahrekord, Iran

https://doi.org/10.30470/jmpb.2025.2051915.1119

Abstract

Drogonhead from the Lamiaceae family is an important plant with many uses . This research was performed in pots and done in a randomized complete block design (RCBD) in a split-split plot layout with three replications. Irrigation regimes (D1-D3: Field Capacity, 50% and 75% evaporation from basin class A) in main plots, superabsorbent nano-polymer application (S1-S2: use and not use) in sub plots and treatments of fertilizers in sub-sub plots were done. Over two consecutive years, the obtained results showed that the use of treatments increased the characters and made the significant effectiveness. In two years, the highest shoot dry matter (54.43 g.plant-1), zinc of shoot (68.12 µg/g dry weight), iron of shoot (75.68 µg/g dry weight), phenol (1.22 mg.Kg Fw-1), chlorophyll content (2.55 mg.g-1 DW) and essential oil content (1.12 %) made by grow-more fertilizers specially grow-more 1 (20-20-20) in combination with Fe/Zn Libfer with irrigation regime of 25% evaporation. The lowest values for morpho-physiological and phytochemical characters such as shoot dry matter (19.82 g.plant-1), zinc of shoot (25.43 µg/g dry weight), iron of shoot (38.43 µg/g dry weight), phenol (0.33 mg.KgFw-1), chlorophyll content (1.88 mg.g-1 DW) and essential oil content (0.28 %) obtained by plants treated with irrigation regime of 75% evaporation from basin class A (D3) and no application of fertilizers. Generally the application of grow-more fertilizer 1 (20-20-20) with consumption of zinc and iron fertilizers can be a good strategy to improve morpho-physiological characters and essential oil quantity and quality of D.moldavica in same climates.

Keywords

Geranial

Geraniol

Medicinal plant

Macro/micro nutrients

Subjects