Full TGIF Record # 229334
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DOI:10.1111/j.1744-7348.1981.tb05145.x
Web URL(s):http://onlinelibrary.wiley.com/doi/10.1111/j.1744-7348.1981.tb05145.x/pdf
    Last checked: 09/12/2013
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Publication Type:
i
Refereed
Author(s):Colvill, Kay E.; Marshall, C.
Author Affiliation:School of Plant Biology, University Colllege of North Wales, Bangor, Gwynedd
Title:The patterns of growth, assimilation of 14CO2 and distribution of 14C-assimilate within vegetative plants of Lolium perenne at low and high density
Source:Annals of Applied Biology. Vol. 99, No. 2, October 1981, p. 179-190.
Publishing Information:London, England, United Kingdom: Cambridge University Press
# of Pages:12
Related Web URL:http://onlinelibrary.wiley.com/doi/10.1111/j.1744-7348.1981.tb05145.x/abstract
    Last checked: 09/12/2013
    Notes: Abstract only
Keywords:TIC Keywords: Assimilation; Carbon-14; Density; Growth analysis; Lolium perenne; Physiological processes
Abstract/Contents:"The patterns of growth, assimilation of 14CO2 and distribution of 14C-labelled assimilate were followed for 12 wk from sowing in individual plants of Lolium perenne grown in miniswards at either low (500 plants m-2) or high (5000 plants m-2) density. At the latter density, plants were characterised by a 50% reduction in RGR, by the production of fewer tillers, especially second- and third-order tillers, and by a reduction in mean tiller weight. All the green and senescing leaves of each tiller assimilated 14CO2 and the overall assimilatory capacity of a tiller was directly related to its dry weight. At both densities the plant consisted of a main shoot and established tillers with comparable assimilatory activities and a range of developing tillers that assimilated relatively small amounts of 14CO2. As each successive primary tiller developed it was supplied with assimilate from the main shoot and the degree of support was inversely proportional to the dry weight of the tiller. At both densities it was concluded that the first primary tiller could be regarded as an independent assimilatory unit when it reached a dry weight of about 25 mg even though some import of main shoot assimilate continued until the tiller was double this weight. The supply of assimilate to the root system was greatly reduced at both densities compared with previous observations on plants grown singly."
Language:English
References:31
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Colvill, K. E., and C. Marshall. 1981. The patterns of growth, assimilation of 14CO2 and distribution of 14C-assimilate within vegetative plants of Lolium perenne at low and high density. Ann. Appl. Biol. 99(2):p. 179-190.
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DOI: 10.1111/j.1744-7348.1981.tb05145.x
Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1111/j.1744-7348.1981.tb05145.x/pdf
    Last checked: 09/12/2013
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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