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| DOI: | 10.2135/cropsci2010.09.0516 |
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| Web URL(s): | https://acsess.onlinelibrary.wiley.com/doi/10.2135/cropsci2010.09.0516
Last checked: 03/24/2024
Access conditions: Item is within a limited-access website
https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2135/cropsci2010.09.0516
Last checked: 03/24/2024
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Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Alderman, P. D.;
Boote, K. J.;
Sollenberger, L. E.;
Coleman, S. W. |
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| Author Affiliation: | Alderman, Boote and Sollenberger: Dep. of Agron., Univ. of Florida, Gainesville, FL; Coleman: Subtropical Agricultural Research Station, USDA-ARS, Brooksville, FL |
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| Title: | Carbohydrate and nitrogen reserves relative to regrowth dynamics of 'Tifton 85' bermudagrass as affected by nitrogen fertilization |
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| Section: | Seed physiology, production & technology
Other records with the "Seed physiology, production & technology" Section
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| Source: | Crop Science. Vol. 51, No. 4, July 2011, p. 1727-1738. |
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| Publishing Information: | Madison, WI: Crop Science Society of America |
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| # of Pages: | 12 |
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| Related Web URL: | https://dl.sciencesocieties.org/publications/cs/abstracts/51/4/1727
Last checked: 11/04/2016
Notes: Abstract only |
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| Keywords: | TIC Keywords: Carbohydrates; Cultivar evaluation; Cynodon; Fertilization rates; Fertilizer evaluation; Growth analysis; Growth factors; Nitrogen fertilization; Regrowth studies; Shoot growth
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| Cultivar Names: | Tifton 85 |
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| Abstract/Contents: | "Carbohydrate and N reserves are important for perennial grass regrowth after defoliation. The objective of this study was to quantify the effects of N fertilization on dynamics of reserve accumulation and utilization for regrowth of a C4 perennial grass. A field study was conducted at Gainesville, FL, on established 'Tifton 85' bermudagrass (Cynodon spp.) in 2006 and 2007. Treatments were N rates of 0, 45, 90, and 135 kg N ha-1 regrowth period-1. Total nonstructural carbohydrate (TNC) and N concentrations, leaf area index (LAI), and canopy carbon exchange rate (CER) were measured weekly during 28-d regrowth periods. Stem and rhizome TNC concentrations decreased with increasing N rate, ranging from 20 to 80 mg g-1 for stem and 45 to 145 mg g-1 for rhizome, and followed quadratic time trends, with minima between 7 and 14 d of regrowth, suggesting reserve utilization up to 2 wk after defoliation. Leaf, stem, rhizome, and root N concentrations increased with N rate. Leaf and stem N concentrations followed quadratic time trends, with maxima between 7 and 14 d of regrowth, and ranged from 15 to 50 mg g-1 for leaf and 10 to 40 mg g-1 for stem. Rhizome N concentrations were constant throughout regrowth. Canopy CER and LAI followed logistic time trends within each 28-d regrowth period, with upper asymptotes raised by increased N rate. Nitrogen fertilization increased TNC reserve utilization, LAI, and canopy CER, thereby increasing shoot regrowth at rates up to 90 kg N ha-1 period-1." |
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| Language: | English |
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| References: | 40 |
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| Note: | Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Alderman, P. D., K. J. Boote, L. E. Sollenberger, and S. W. Coleman. 2011. Carbohydrate and nitrogen reserves relative to regrowth dynamics of 'Tifton 85' bermudagrass as affected by nitrogen fertilization. Crop Sci. 51(4):p. 1727-1738. |
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| DOI: 10.2135/cropsci2010.09.0516 |
| Web URL(s):
https://acsess.onlinelibrary.wiley.com/doi/10.2135/cropsci2010.09.0516
Last checked: 03/24/2024
Access conditions: Item is within a limited-access website
https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2135/cropsci2010.09.0516
Last checked: 03/24/2024
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: b2211522a |
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