Somayeh Direkvandy, Hamid Reza Eisvand, Khosro Azizi, Omidali Akbarpour, Donald L. Smith
{"title":"二氧化硅纳米颗粒和菌根对晚季干旱胁迫下小麦生长和产量的缓解作用","authors":"Somayeh Direkvandy, Hamid Reza Eisvand, Khosro Azizi, Omidali Akbarpour, Donald L. Smith","doi":"10.1007/s42976-024-00526-2","DOIUrl":null,"url":null,"abstract":"<p>Wheat grain yields are reduced due to late-season drought, posing a challenge for cultivated areas that experiencing water scarcity. This research explores the impact of Nano-SiO<sub>2</sub> and mycorrhiza on wheat, aiming to mitigate drought effects. A two-year experiment was carried out with three factors and three replications. The factors were the interruption of irrigation (control, stopping irrigation at the end of the booting stage and stopping irrigation at the end of the flowering stage), foliar application of Nano-SiO<sub>2</sub> (0, 40 and 80 mg L<sup>−1</sup>) and mycorrhiza application (0 and 200 kg ha<sup>−1</sup>). The results indicated that drought stress decreased leaf area index, variable fluorescence (Fv), Fv/maximum fluorescence (Fm), stomatal conductance, net photosynthesis, sub stomatal CO<sub>2</sub> concentration and grain yield. Drought stress increased the grain protein percentage, and stomatal density. Application of Nano-SiO<sub>2</sub> and mycorrhiza increased grain yield. Nano-SiO<sub>2</sub> balances stomatal conductance and makes plants more drought-resistant by increasing the amount of silicon in leaves, leading to improved yield. Conversely, mycorrhiza may have played an important role in absorbing phosphorus and other elements from the soil in addition to absorbing moisture, which ultimately resulted in a drought-resistant plant. The combined treatment of mychorriza + foliar application of Nano-SiO<sub>2</sub> (80 mg L<sup>−1</sup>) increased grain yield by 39.43% under severe drought conditions (stopping irrigation at the end of the booting stage). In summary, the soil application of mycorrhiza and foliar Nano-SiO<sub>2</sub> is recommended for wheat production in regions where water deficit is a common issue during late-season wheat growth stages. Exploring the utilization of Nano-SiO<sub>2</sub> over an extended period throughout the wheat growth, alongside mycorrhiza application, appears to offer promising prospects for future research. Such endeavors aim to mitigate the impacts of drought stress.</p>","PeriodicalId":9841,"journal":{"name":"Cereal Research Communications","volume":"23 1","pages":""},"PeriodicalIF":1.6000,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Mitigation impact of SiO2 nanoparticles and mycorrhiza on wheat growth and yield under late-season drought stress\",\"authors\":\"Somayeh Direkvandy, Hamid Reza Eisvand, Khosro Azizi, Omidali Akbarpour, Donald L. Smith\",\"doi\":\"10.1007/s42976-024-00526-2\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Wheat grain yields are reduced due to late-season drought, posing a challenge for cultivated areas that experiencing water scarcity. This research explores the impact of Nano-SiO<sub>2</sub> and mycorrhiza on wheat, aiming to mitigate drought effects. A two-year experiment was carried out with three factors and three replications. The factors were the interruption of irrigation (control, stopping irrigation at the end of the booting stage and stopping irrigation at the end of the flowering stage), foliar application of Nano-SiO<sub>2</sub> (0, 40 and 80 mg L<sup>−1</sup>) and mycorrhiza application (0 and 200 kg ha<sup>−1</sup>). The results indicated that drought stress decreased leaf area index, variable fluorescence (Fv), Fv/maximum fluorescence (Fm), stomatal conductance, net photosynthesis, sub stomatal CO<sub>2</sub> concentration and grain yield. Drought stress increased the grain protein percentage, and stomatal density. Application of Nano-SiO<sub>2</sub> and mycorrhiza increased grain yield. Nano-SiO<sub>2</sub> balances stomatal conductance and makes plants more drought-resistant by increasing the amount of silicon in leaves, leading to improved yield. Conversely, mycorrhiza may have played an important role in absorbing phosphorus and other elements from the soil in addition to absorbing moisture, which ultimately resulted in a drought-resistant plant. The combined treatment of mychorriza + foliar application of Nano-SiO<sub>2</sub> (80 mg L<sup>−1</sup>) increased grain yield by 39.43% under severe drought conditions (stopping irrigation at the end of the booting stage). In summary, the soil application of mycorrhiza and foliar Nano-SiO<sub>2</sub> is recommended for wheat production in regions where water deficit is a common issue during late-season wheat growth stages. Exploring the utilization of Nano-SiO<sub>2</sub> over an extended period throughout the wheat growth, alongside mycorrhiza application, appears to offer promising prospects for future research. 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Mitigation impact of SiO2 nanoparticles and mycorrhiza on wheat growth and yield under late-season drought stress
Wheat grain yields are reduced due to late-season drought, posing a challenge for cultivated areas that experiencing water scarcity. This research explores the impact of Nano-SiO2 and mycorrhiza on wheat, aiming to mitigate drought effects. A two-year experiment was carried out with three factors and three replications. The factors were the interruption of irrigation (control, stopping irrigation at the end of the booting stage and stopping irrigation at the end of the flowering stage), foliar application of Nano-SiO2 (0, 40 and 80 mg L−1) and mycorrhiza application (0 and 200 kg ha−1). The results indicated that drought stress decreased leaf area index, variable fluorescence (Fv), Fv/maximum fluorescence (Fm), stomatal conductance, net photosynthesis, sub stomatal CO2 concentration and grain yield. Drought stress increased the grain protein percentage, and stomatal density. Application of Nano-SiO2 and mycorrhiza increased grain yield. Nano-SiO2 balances stomatal conductance and makes plants more drought-resistant by increasing the amount of silicon in leaves, leading to improved yield. Conversely, mycorrhiza may have played an important role in absorbing phosphorus and other elements from the soil in addition to absorbing moisture, which ultimately resulted in a drought-resistant plant. The combined treatment of mychorriza + foliar application of Nano-SiO2 (80 mg L−1) increased grain yield by 39.43% under severe drought conditions (stopping irrigation at the end of the booting stage). In summary, the soil application of mycorrhiza and foliar Nano-SiO2 is recommended for wheat production in regions where water deficit is a common issue during late-season wheat growth stages. Exploring the utilization of Nano-SiO2 over an extended period throughout the wheat growth, alongside mycorrhiza application, appears to offer promising prospects for future research. Such endeavors aim to mitigate the impacts of drought stress.
期刊介绍：
This journal publishes original papers presenting new scientific results on breeding, genetics, physiology, pathology and production of primarily wheat, rye, barley, oats and maize.
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