Full TGIF Record # 76910
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DOI:10.1046/j.0028-646X.2001.00262.x
Web URL(s):http://www.jstor.org/stable/view/1353767
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http://www.jstor.org/stable/pdfplus/1353767.pdf
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Publication Type:
i
Refereed
Author(s):Bausenwein, Ursula; Millard, Peter; Raven, John A.
Author Affiliation:Bausenwein, Millard: Macauley Land Use Research Institute, Craigiebuckler, Aberdeen, UK; Raven: Biological Sciences, University of Dundee, UK
Title:Remobilized old-leaf nitrogen predominates for spring growth in two temperate grasses
Section:Research
Other records with the "Research" Section
Source:New Phytologist. Vol. 152, No. 2, November 2001, p. 283-290.
Publishing Information:Oxford, England: Cambridge University Press.
# of Pages:8
Related Web URL:http://www.jstor.org/stable/info/1353767
    Last checked: 07/16/2014
    Notes: Abstract only
Keywords:TIC Keywords: Nitrogen; Leaves; Spring green-up; Nitrogen fate; Lolium perenne; Agrostis tenuis; Biomass; Root systems; Tillers (vegetative); Growth
Abstract/Contents:"The importance of N derived from internal remobilization and root uptake to growth in spring is reported here for the perennial grasses Festuca rubra and Agrostis capillaris derived from seminatural grasslands in Scotland, UK. Plants grown in sand culture, received 15N-enriched nutrient solution during the first year of growth and nutrient solution with N at natural abundance during the subsequent spring and summer when destructive harvests were taken. Labelled N was recovered in new growth of overwintering tillers and new tillers. Remobilized N contributed 70% and 82% for F. rubra and A. capillaris, respectively, to the total N in new above-ground growth in early spring, declining to 34% and 45%, respectively, by mid June. Species showed similiar patterns of remobilization on a new growth biomass basis. The root system did not remobilize N to support new above-ground growth. Labelled N was derived from senescing leaves present on over-wintering tillers. Net balances of labelled N suggest that N was translocated between tillers; reproductive tillers acted as sinks, vegetative tillers as the source of N. Initial growth in spring is largely independent of N uptake from the soil, provided that overwintering leaves are present on the plants."
Language:English
References:38
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Bausenwein, U., P. Millard, and J. A. Raven. 2001. Remobilized old-leaf nitrogen predominates for spring growth in two temperate grasses. New Phytol. 152(2):p. 283-290.
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DOI: 10.1046/j.0028-646X.2001.00262.x
Web URL(s):
http://www.jstor.org/stable/view/1353767
    Last checked: 07/16/2014
    Access conditions: Item is within a limited-access website
http://www.jstor.org/stable/pdfplus/1353767.pdf
    Last checked: 07/16/2014
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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MSU catalog number: QK 1 .N38
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