hasanpour R, zaefarian F, rezvani M, jalili B. Investigation of some morphophysiological characteristics in water mint (Mentha aquatica L.) under lead and cadmium stress. Plant Process and Function 2019; 8 (33) :277-288
URL:
http://jispp.iut.ac.ir/article-1-1161-en.html
1- Department of Agronomy, Sari Agricultural Sciences and Natural Resources University
2- Department of Agronomy, Sari Agricultural Sciences and Natural Resources University , fa_zaefarian@yahoo.com
3- Department of Agronomy and Plant Breeding, Qaemshahr Branch, Islamic Azad University, Qaemshahr
4- Department of Soil Science, Sari Agricultural Sciences and Natural Resources University
Abstract: (2402 Views)
Lead and Cadmium are toxic and common pollutants of the soil that affect plant processes, functions and sustainable production of plants. In this research, the effect of Lead and Cadmium stress on some growth parameters of water mint aromatic plant (Mentha aquatica L.) in two separate completely randomized design experiments at Sari Agricultural Sciences and Natural Resources University was studied. Experimental treatments were different concentrations of Lead (0, 125, 250, 375 and 500 mg/kg) and Cadmium (0, 5, 10, 15 and 20 mg/kg). Plant height, number of leaf, leaf area, greenness index, chlorophyll a, chlorophyll b, total chlorophyll (a+b), chlorophyll ratio (a/b) and fresh and dry weight of shoot were measured. Lead and Cadmium stress reduced plant traits except chlorophyll ratio in treatment of Lead. The minimum amount of plant traits was related to the highest concentration of lead and cadmium. The reduction of chlorophyll b was heigher than chlorophyll a with increase in level of lead, which increased chlorophyll ratio in the lead stress. Lead and Cadmium with influence on morphological traits can lead to a series of physiological changes in water mint that reduced fresh and dry weight of shoots. The results gained from the experiments showed that due to the lack of blight, chlorosis and abscission of leaves, water mint can be considered as a resistant plant to Lead and Cadmium.
Type of Study:
Research |
Subject:
Toxic ions stress Received: 2018/12/9 | Accepted: 2019/02/13 | Published: 2020/05/11
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