Volume 14, Issue 65 (vol. 14, no. 65 2025)
2025, 14(65): 255-276 |
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Mahmoudi F, Sheikhzadeh P, Zare N, Esmailpour B. Improvement of germination, growth and biochemical characteristics of quinoa seedlings (Chenopodium quinoa willd.) using salicylic acid under cadmium
stress conditions. Plant Process and Function 2025; 14 (65) : 16
URL: http://jispp.iut.ac.ir/article-1-2101-en.html
URL: http://jispp.iut.ac.ir/article-1-2101-en.html
1- Department of Plant Production and Genetics, Faculty of Agriculture and Natural Resources, Mohaghegh Ardabili University, Ardabil, Iran
2- Sheikhzadeh1
3- Department of Horticultural Sciences, Faculty of Agriculture and Natural Resources, Mohaghegh Ardabili University, Ardabil, Iran
2- Sheikhzadeh1
3- Department of Horticultural Sciences, Faculty of Agriculture and Natural Resources, Mohaghegh Ardabili University, Ardabil, Iran
Abstract: (97 Views)
This research was aimed at evaluating the effects of salicylic acid (SA) on seed germination and growth of quinoa (Chenopodium quinoa willd.) seedlings under cadmium (Cd) stress. Factorially in the form of a completely randomized design in four replications in the Seed Science and Technology Laboratory of Mohaghegh Ardabili University in the year 2022. The experimental treatments included SA at four levels (0, 1.5, 2.5, and 3.5 mM) and Cd at four levels (0, 200, 300, and 400 mg/liter). Characteristics of germination percentage (GP), average germination duration (AGD), germination speed (GS), average daily germination (ADG), coefficient of variation of germination time (CVT), index of uncertainty of germination process (UGP), index of germination simultaneity (IGS), time to 75% germination (TG), and Anti-Enzymatic oxidants were evaluated. The results showed that the interaction of two factors was significant on almost all traits, so that with the application of 400 mg/liter of Cd in the conditions without the application of SA, the percentage of germination was about 27.67%, the coefficient of variation of germination time was about 42 11.0%, germination speed was 13.7%, germination synchronicity index 17.64%, daily germination percentage 34.32%, seedling dry weight 35.48% and quinoa seedling length 59.76% compared to the control treatment decreased. Although cadmium stress reduced the characteristics of seed germination and the growth of quinoa seedlings, under cadmium stress, the application of a 2.5 mM concentration of salicylic acid increased the germination percentage by 13.17% and the germination rate by 52.28%, 6.81 to 73. 35.0% Z index, 99.33% dry weight, and 79.68 to 91.63% length of quinoa seedlings were observed. Also, 42.90% decrease in average germination time, 11.42% decrease in average germination time coefficient, and 6.28 to 38.93% U index were reported by treatment with 2.5 mM concentration of salicylic acid. . The use of salicylic acid at a concentration of 2.5 mM in different levels of cadmium stress reduces the negative effect of cadmium stress by increasing the strength of seeds and seedlings, increasing the activity of antioxidant enzymes, and improving the characteristics of germination and seedling growth.
Article number: 16
Keywords: Coefficient of variation of germination time, Uncertainty, Enzymatic antioxidants, Seedling dry weight
Type of Study: Research |
Subject:
Toxic ions stress
Received: 2024/08/1 | Accepted: 2024/09/14 | Published: 2025/05/3
Received: 2024/08/1 | Accepted: 2024/09/14 | Published: 2025/05/3
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