Wongsakorn Wongla, Piyada Theerakulpisut, Watanachai Lontom
{"title":"Exogenous silicon application promotes growth and alleviates drought and salt stresses of rice plants","authors":"Wongsakorn Wongla, Piyada Theerakulpisut, Watanachai Lontom","doi":"10.5586/aa/172075","DOIUrl":null,"url":null,"abstract":"In the current study, the influence of silicon (Si) on KDML 105 rice plants exposed to drought and salt stress was observed. The 28-days old rice plants were arranged into control, drought, and salinity conditions. The drought and salinity conditions were achieved by addition of 20% W/W polyethylene glycol 6000 and 120 mM NaCl to the nutrient solution, respectively. Si was concurrently applied in all groups by adding 0, 1.5, 2.0, and 2.5 mM Na2SiO3. The results showed that some growth and physiological parameters were positively changed by the Si-application. The relative water content was significantly improved in the 1.5 mM Si-supplemented drought group and the 2.0 mM Si-supplemented salt group. Additionally, Si at 2.0 mM significantly improved photosynthetic activity in the rice and slightly reduced plant temperature under salt stress. Moreover, exogenous Si ameliorated NaCl toxicity from the sodium-potassium ratio decline. The results suggested that 2.0 mM silicon was a proper concentration to recover plants exposed to abiotic stress.","PeriodicalId":6907,"journal":{"name":"Acta Agrobotanica","volume":"24 21","pages":"0"},"PeriodicalIF":2.1000,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Agrobotanica","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5586/aa/172075","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
In the current study, the influence of silicon (Si) on KDML 105 rice plants exposed to drought and salt stress was observed. The 28-days old rice plants were arranged into control, drought, and salinity conditions. The drought and salinity conditions were achieved by addition of 20% W/W polyethylene glycol 6000 and 120 mM NaCl to the nutrient solution, respectively. Si was concurrently applied in all groups by adding 0, 1.5, 2.0, and 2.5 mM Na2SiO3. The results showed that some growth and physiological parameters were positively changed by the Si-application. The relative water content was significantly improved in the 1.5 mM Si-supplemented drought group and the 2.0 mM Si-supplemented salt group. Additionally, Si at 2.0 mM significantly improved photosynthetic activity in the rice and slightly reduced plant temperature under salt stress. Moreover, exogenous Si ameliorated NaCl toxicity from the sodium-potassium ratio decline. The results suggested that 2.0 mM silicon was a proper concentration to recover plants exposed to abiotic stress.
Acta AgrobotanicaAgricultural and Biological Sciences-Agronomy and Crop Science
CiteScore
2.90
自引率
25.00%
发文量
8
审稿时长
16 weeks
期刊介绍:
The Acta Agrobotanica publishes mainly significant, original research papers presenting the results new to the biology of cultivable or wild plants accompanying crops. The submissions dedicated particularly to flora and phytocenoses of anthropogenically transformed areas, bee pastures, nectariferous and polleniferous taxa, plant-pollinator relationships, urban and rural habitats for entomofauna, cultivated plants, weeds, aerobiology, plant pathogens and parasites are encouraged and accepted. Besides the original research papers, authors may submit short communications and reviews. The journal also publishes the invited papers in case of new developments in plant science. All submissions must be written in good English, which is solely a responsibility of the authors.