Volume 14, Issue 65 (vol. 14, no. 65 2025)
2025, 14(65): 79-112 |
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Mohammadi Kale Sarlou S, Seyed Sharifi R, Sedghi M. Effects of bio fertilizers and foliar application with nano zinc oxide and putrescine on chlorophyll fluorescence components and some physiological traits of barley (Hordeum vulgare L.) under salinity stress. Plant Process and Function 2025; 14 (65) : 6
URL: http://jispp.iut.ac.ir/article-1-2094-en.html
URL: http://jispp.iut.ac.ir/article-1-2094-en.html
1- Department of Plant Production and Genetics, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran
2- Department of Plant Production and Genetics, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran ,raouf_ssharifi@yahoo.com
2- Department of Plant Production and Genetics, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran ,
Abstract: (83 Views)
In order to evaluate the effects of stress modulators (vermicompost, arbuscular mycorrhiza fungi and foliar application of putresin and nano zinc oxide) on fluorescence chlorophyll components and some physiological traits of barley under salinity stress conditions, an experimental as factorial was conducted based on randomized complete block design with three replications at the research greenhouse, faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabil in 2022. The experimental treatments were included salinity in three levels (no salinity as control, salinity of 40 and 80 mM) by NaCl, bio fertilizers in four levels (no application as control, application of vermicompost 50 g/kg of soil, arbuscular mycorrhiza fungi 20 g/m2 of soil, both application of vermicompost and mycorrhiza), foliar application of putrescine and nano zinc oxide in four levels (foliar application with water as control, foliar application 0.4 g.L-1 nano zinc oxide, 0.8 mM putrescine, foliar application of nano zinc oxide and putrescine). The results showed that in stages of flag leaf emergence and heading under the highest salinity level, simultaneous treatment of stress modulators (vermicompost, arbuscular mycorrhizal fungi, putrescine and zinc oxide) increased chlorophyll index (34.8 and 29.5% respectively), nitrogen index (28 and 21.6% respectively), stomatal conductivity (58.94 and 77.9% respectively), relative water content (45.4 and 46.1% respectively), quantum yield (16.3 and 110% respectively), maximum fluorescence (38.6 and 41.48% respectively), variable fluorescence (61.2 and 196.3% respectively) in comparison with no application of stress modulators at the same level from salinity levels. Also, at the highest salinity level, simultaneous treatment of stress modulators increased 34.2% grain yield in comparison with no application of stress modulators at the same level from salinity levels. Based on the results of this study, simultaneous treatment of stress modifiers (vermicompost, arbuscular mycorrhizal fungi, and foliar spraying of putresin and nanooxydroi) was able to compensate a part of the reduction of barley yield under salinity conditions due to improving fluorescence chlorophyll components and some physiological traits such as chlorophyll indices, quantum yield and stomatal conductivity.
Article number: 6
Keywords: Arbuscular mycorrhizal fungi, Chlorophyll index, Relative water content, Stomatal conductivity, Vermicompost
Type of Study: Research |
Subject:
Salt Stress
Received: 2024/07/22 | Accepted: 2024/11/3 | Published: 2025/05/3
Received: 2024/07/22 | Accepted: 2024/11/3 | Published: 2025/05/3
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