1- Department of Soil Science, College of Agriculture, Vali-e-Asr University of Rafsanjan, Rafsanjan , fatemehafzalinejad1@gmail.com
2- Department of Soil Science, College of Agriculture, Vali-e-Asr University of Rafsanjan, Rafsanjan
3- Department of Soil Science, College of Agriculture, Yazd University, Yazd
4- Department of Plant Protection, College of Agriculture, Vali-e-Asr University of Rafsanjan, Rafsanjan
Abstract: (867 Views)
Background and Objective: Salinity is one of the most significant abiotic stresses limiting agricultural production in arid and semi-arid regions, inhibiting plant growth and productivity. Zinc is crucial for plants to resist environmental stresses. Utilizing rubber powder as a zinc source is an effective strategy for promoting plant growth in saline soils. This study aimed to investigate the effect of rubber powder on the growth and development of wheat plants in saline condition.
Methods: The experiment was conducted as a factorial study with two factors: salinity at three levels (control, 1000, and 2000 mg NaCl per kg of soil) and zinc (from the rubber powder source) at three levels (0, 10, and 20 g rubber powder per kg of soil, equivalent to 0, 570, and 1140 mg zinc per kg of soil), organized in a completely randomized design in a greenhouse.
Results: As the concentration of NaCl increased, the shoot dry weight decreased compared to the control. At a salinity level of zero, the application of 10 grams of rubber powder per kilogram of soil resulted in the highest shoot dry weight (an increase of 22.8% compared to the control). At a salinity level of 1000 mg of NaCl per kilogram of soil, an increase in the amount of rubber powder led to a 45.2% increase in the shoot dry weight compared to the control. At the level of 2000 mg of NaCl, the application of rubber powder had no significant effect on the shoot dry weight. Additionally, the results indicated that the application of rubber powder under salinity stress resulted in increases in total chlorophyll (32.9%), zinc concentration (411.9%), iron concentration (17.8%), lead concentration (88.0%), and cadmium concentration (56.9%) in wheat plants.
Conclusion: These findings suggest that further research is needed to evaluate the effects of rubber powder as a soil amendment on the environment and human health more precisely.
Type of Study:
Research |
Subject:
Availability of soil water and nutrients for plant Received: 2024/12/23 | Accepted: 2025/05/26 | Published: 2024/03/29