Full TGIF Record # 333461
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Web URL(s):https://scisoc.confex.com/scisoc/2023am/meetingapp.cgi/Paper/152257
    Last checked: 12/04/2023
Publication Type:
Content Type:Abstract or Summary only
Author(s):Qian, Cheng; Unrine, Jason M.
Author Affiliation:Qian: Presenting Author and Sara, Lexington, KY; Unrine: University of Kentucky, Lexington, KY
Title:Comparison of root and foliar silicon application on growth and silicon accumulation tall fescue (Festuca arundinacea)
Section:Turfgrass science oral I (includes student competition)
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C05 turfgrass science
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Meeting Info.:St. Louis, Missouri: October 29-November 1, 2023
Source:ASA, CSSA, SSSA International Annual Meeting. 2023, p. 152257.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Abstract/Contents:"Silicon (Si), although not essential, is an important micronutrient for some plants, particularly grasses. Since the early 1990s, Si has been applied as a foliar spray to promote growth and reduce biotic and abiotic stresses in turfgrass. However, there are few studies that compare the root and foliar Si application in turfgrasses. In this study, we assessed the different application methods on growth, SPAD value, and Si accumulation of tall fescue (Festuca arundinacea). Plants were grown in potting soil in which two Si concentrations (0, 7 mM Si) were supplied through root or foliar application as Na2SiO3. The treatments were soil control (SC), soil + 7mM Si (SS), foliar control (FC) and foliar + 7mM Si (FS). After five Si applications, we analyzed tissue for silicon content using inductively-coupled plasma optical emission spectrometry. The Si concentration of the above- or under- ground tissue was affected by application method. In shoots, both Si treatments resulted in significantly higher Si concentration compared to the controls. However, Si treated plants tended to have lower root Si concentration compared to the controls. We also analyzed the silica body areal coverage in ashed leaf tissue using epifluorescence microscopy. Plants with foliar Si spray (FS) had the most silica body area but only significantly higher than the soil control treatment (SC). SPAD value showed no differences across treatments. These findings clearly indicate that supplying dissolved Si increases shoot Si concentration but decreases root Si concentration. Our results also showed that foliar application of Si to tall fescue increases silica bodies in leaf tissues. The findings indicate that applying Si (root and foliar) increase aboveground Si concentrations at 7mM Si."
This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Qian, C., and J. M. Unrine. 2023. Comparison of root and foliar silicon application on growth and silicon accumulation tall fescue (Festuca arundinacea). Agron. Abr. p. 152257.
Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=333461
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    Last checked: 12/04/2023
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