Journal of Soil and Plant Interactions
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azad university , farajzadeh.elnaz@yahoo.com
Abstract: (23 Views)
Objectives: This study aimed to investigate the effect of different irrigation levels and the application of Hb101 hormone on growth characteristics and yield of quinoa (Chenopodium quinoa) under water stress conditions. Materials and Methods: The experiment was conducted for two years at the research farm of Islamic Azad University, Malekan Branch, in a split plot with a randomized complete block design. Treatments included concentrations of Hb-101 hormone and different irrigation regimes. Results: Reducing the amount of irrigation water had a negative effect on plant height, leaf area, chlorophyll content index, and grain yield. Especially in the irrigation treatment after 160 mm of evaporation from the evaporation pan, a significant decrease in these characteristics was observed. On the other hand, the application of Hb101 hormone caused a significant increase in plant height and leaf area. Also, Hb101 hormone caused a decrease in abscisic acid content in leaves, which seems to be one of the reasons for the decrease in stomatal resistance under water stress. The application of this compound also improved the antioxidant properties of the leaves, which can be effective in enhancing the plant's resistance to environmental stresses. Conclusion: The results of this study showed that the application of the hormone Hb101 as a growth promoter can reduce the negative effects of water deficit on quinoa growth and yield, and as a result, increase grain yield and improve the physiological characteristics of plants under water deficit stress. Therefore, the use of this compound, especially under limited irrigation conditions, can be suggested as an effective method for improving quinoa production in areas with a shortage of water resources.
Type of Study: Research |
Subject:
Plant water relations
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Journal of Soil and Plant Interactions by http://jspi.iut.ac.ir is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly.
This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly.
