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Title

CHANGE IN UPTAKE OF MICRONUTRIENT AND MACRONUTRIENT IN PENNYROYAL (MENTHA PULEGIUM L.) AT GREENHOUSE CONDITION UNDER COPPER AND ZINC APPLICATION

Pages

 Start Page 197 | End Page 210

Abstract

 Background and Objectives: Use of improvement factors are one of the routine methods in the production of medicinal plants. Zinc (Zn) and Copper (Cu) are MICRONUTRIENT and improvement factors increased plant growth in low concentrations. While high concentrations of these elements as a limiting factor, can cause adverse symptoms on the plants cultivation of medicinal plants in soils contaminated with HEAVY METALs such as Cu and Zn are recommended due to the lack of transfer of these elements into secondary metabolites. The effect of HEAVY METALs and MICRONUTRIENTs on field crop and vegetables was studied extensively, but behavior of medicinal plants in such conditions has not been studied well. Since the deficiency and toxicity of Cu and Zn is visible in the country, so in this study UPTAKE of MICRONUTRIENT and MACRONUTRIENT by medicinal plant were studied in soil with deficiency and toxicity of Cu and Zn under greenhouse conditions.Materials and Methods: Three levels of Copper (0, 5 and 25 mg/Kg) and three levels of zinc (0, 10 and 50 mg/Kg) and combination of all the above levels, were used as treatments in a factorial experiment based on completely randomized design with three replications.Results: According to the results, the maximum value UPTAKE of Cu (317.4 mg pot-1) and Zn (1818.27 mg pot-1) in shoots was obtained in Cu25Zn10 and Cu5Zn50 treatment, respectively. The maximum values UPTAKE of Fe and Mn (3674.12 and 1537.41 mg pot-1) and P and K (21.88 and 380.52 mg Pot-1) in shoots was revealed in Cu5Zn10 treatment. The highest values UPTAKE of Cu, Zn, Fe and Mn in root (281.33, 1802.85, 18744.4 and 1235.68 mg pot-1, respectively), P (22.56 mg pot-1) was observed in Cu25Zn50 treatment and K (115.94 mg pot-1) in Cu5Zn50 treatment.Conclusion: The results showed that PENNYROYAL herb has the high ability to absorb and transfer elements to shoots. Considering that PENNYROYAL have aspects fresh and spicy, so use of PENNYROYAL grown in soils contaminated with Cu and Zn due to UPTAKE and transport of these elements in shoot would be required with caution. Combined treatment with low levels of Cu and Zn created the greatest UPTAKE of K, P, Mn and Fe in shoot. But combined treatment of higher levels of these elements were proven to have negative interactions between the Cu, Zn, Fe, Mn, P and K. Then their application should be done carefully with each other.

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