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Effects of mycorrhizae and nanoparticles (iron and silicon) on some physiological and biochemical traits of rye (Secale cereal L.) under water limitation conditions
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Fatemeh Basiri rad   , Raouf Seyed sharifi * , Khoshnaz Payandeh , Sara Mohammadi Kale Sarlou |
| Department of Plant Production and Genetics, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran |
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Abstract: (507 Views) |
Water limitation is one of the most important abiotic stresses that can decrease growth and yield of rye (Secale cereal L.). Several strategies have been suggested in order to improve yield of rye under water limitation conditiond, among them application of mycorrhiza, nanoparticles of iron and silicon play a key role in yield improvement. In this regard, in order to study the effects of mycorrhiza, nanoparticles of iron and silicon on some physiological and biochemical traits of rye (Secale cereal L.) under withholding irrigation conditions, an experimental as factorial was conducted based on randomized complete block design with three replications in research greenhouse of Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili during 2022. Experimental factors were included irrigation in three levels (full irrigation as control, withholding irrigation at 50% of heading and booting stages), mycorrhiza application at two levels (no application as control, application of mycorrhiza), nano iron-silicon oxide foliar application at four levels (foliar application with water as control, nano iron oxide foliar application, nano silicon, both application nano iron-silicon oxide). The results showed that withholding irrigation decreased relative water content and stomatal conductance in all of sampling stages, but application of nanoparticles and mycorrhiza were able to compensate of part of this reduction. Also, both application nanoparticle and mycorrhiza under withholding irrigation at booting stage decreased malondialdehyde and hydrogen peroxide contents (58.87 and 36.04% respectively) in comparison with no application of nanoparticle and mycorrhiza in the same irrigation level. But, it increased the activity of catalase, peroxidase and polyphenol oxidase enzymes (34.67, 32.14 and 32.18% respectively), proline and soluble sugars contents (38.01 and 28.33% respectively) in comparison with no application of mycorrhiza and nano iron-silicon oxide in the same irrigation level. Maximum of grain yield (2.76 g.per plant) was obtained at both application nanoparticle and mycorrhiza in full irrigation, which increased grain yield of 45.2% in comparison with no application of mycorrhiza and nano iron-silicon oxide under withholding irrigation at booting stages. Based on the results of this study, it can be suggested that under withholding irrigation conditions, application of nanoparticles and mycorrhiza can increase grain yield of rye by improving the physiological and biochemical traits.
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| Keywords: hydrogen peroxide, malondialdehyde, proline, soluble sugars, stomatal conductance |
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Full-Text [PDF 775 kb]
(763 Downloads)
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Type of Study: Research |
Subject:
Crop Physiology
Received: 2024/05/19 | Accepted: 2024/05/30 | Published: 2024/05/30
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