Full TGIF Record # 228682
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DOI:10.1080/01904167.2013.810248
Web URL(s):http://www.tandfonline.com/doi/full/10.1080/01904167.2013.810248#.UidfOD9nA_4
    Last checked: 09/04/2013
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http://www.tandfonline.com/doi/pdf/10.1080/01904167.2013.810248
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Publication Type:
i
Report
Author(s):Espinosa, Adriana; Miller, Grady L.; Datnoff, Lawrence E.
Author Affiliation:Espinosa: Monsanto Company, Salinas, California; Miller: Crop Science Department, North Carolina State University, Raleigh, North Carolina; Datnoff: Department of Plant Pathology and Crop Physiology, Louisiana State University, Baton Rouge, Louisiana, USA
Title:Accumulation of silicon in Cynodon dactylon x C. transvaalensis and Poa trivialis used as an overseed grass
Source:Journal of Plant Nutrition. Vol. 36, No. 11, 2013, p. 1719-1732.
# of Pages:13
Publishing Information:New York, New York: Marcel Dekker, Inc.
Related Web URL:http://www.tandfonline.com/doi/abs/10.1080/01904167.2013.810248#tabModule
    Last checked: 09/04/2013
    Notes: Abstract only
Keywords:TIC Keywords: Calcium silicate; Comparisons; Cynodon dactylon x Cynodon transvaalensis; Overseeding; Poa trivialis; Silicon; Topdressing; Turfgrass quality; Uptake
Cultivar Names:Tifdwarf; Wintergreen
Abstract/Contents:"Calcium silicate has been used to supply silicon (Si) as a plant nutrient for enhancing crop production and the suppression of turf diseases. Research was initiated to determine the effect of calcium silicate on silicon uptake, turf quality, and its residual activity in providing plant available Si in two turfgrass systems. During 2005 and 2006, calcium silicate (CaSi, 12% Si) was applied as a topdressing at eight rates ranging from 0 to 342 kg m-2 to a 'Tifdwarf' (Cynodon dactylon × C. transvaalensis Burtt Davy) green in the spring and to the same plots overseeded with 'Wintergreen' rough bluegrass (Poa trivialis L.) in the fall. At initiation of the study, dolomitic limestone and magnesium sulfate (MgSO4) was applied to equilibrate calcium across all treatments based on the highest rate of CaSi. Every 28 days, treatments were rated for turf quality and then harvested to determine Si accumulation. One month after applying CaSi in 2005, Si concentration in the leaf tissue of Tifdwarf had increased linearly with increasing rates. This response continued through the months of May, June, July, August, and October with a 9%, 21%, 40%, 22% and 21% increase in Si concentration in the leaf tissue between the control and the 342 kg m -2 rate, respectively. Although the rate response remained, there was an overall drop in average percent Si accumulation in leaf tissue across the treatments beginning three months after the first application. Similar responses were noted with the overseeded rough bluegrass with a 46%, 85%, 69%, 111% and 58% increase in Si concentration in the leaf tissue between the control and the 342 kg m-2 rate, respectively. In contrast to the bermudagrass, over the five month period following application, the residual activity of Si in rough bluegrass remained high, suggesting that rough bluegrass might be a better Si accumulator in comparison to Tifdwarf bermudagrass. The second run of the experiment (2006-2007) and the residual trial had the same response with Si concentration in the leaf tissue increasing as the amount of CaSi applied increased. Although turfgrass quality was not well correlated to CaSi rate for Tifdwarf bermudagrass, there was an increase in quality ratings for rough bluegrass from December 2005 to April 2006."
Language:English
References:17
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Espinosa, A., G. L. Miller, and L. E. Datnoff. 2013. Accumulation of silicon in Cynodon dactylon x C. transvaalensis and Poa trivialis used as an overseed grass. J. Plant Nutr. 36(11):p. 1719-1732.
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DOI: 10.1080/01904167.2013.810248
Web URL(s):
http://www.tandfonline.com/doi/full/10.1080/01904167.2013.810248#.UidfOD9nA_4
    Last checked: 09/04/2013
    Access conditions: Item is within a limited-access website
http://www.tandfonline.com/doi/pdf/10.1080/01904167.2013.810248
    Last checked: 09/04/2013
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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