Full TGIF Record # 200464
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DOI:10.1111/j.1365-2494.1981.tb01546.x
Web URL(s):http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1981.tb01546.x/pdf
    Last checked: 03/26/2012
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Publication Type:
i
Refereed
Author(s):Thomas, Henry; Norris, Ian B.
Author Affiliation:Welsh Plant Breeding Station, Aberystwyth, UK
Title:The influence of light and temperature during winter on growth and death in simulated swards of Lolium perenne
Source:Grass and Forage Science. Vol. 36, No. 2, June 1981, p. 107-116.
# of Pages:10
Publishing Information:[Oxford, England, United Kingdom]: Blackwell Publishing Ltd.
Related Web URL:http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1981.tb01546.x/abstract
    Last checked: 03/26/2012
    Notes: Abstract only
Keywords:TIC Keywords: Cultivar evaluation; Growth studies; Leaf area index; Light intensity; Lolium perenne; Shade assessment; Soil temperature; Tillering rate; Winter
Cultivar Names:S23
Abstract/Contents:"Two growth experiments were carried out in January-March 1978 in which simulated swards of perennial ryegrass were (1) heated by soil warming cables to give soil surface temperatures of approx. 7.5-9C° above ambient temperature, (2) shaded with netting to reduce light levels by approx. 50%, or (3) both heated and shaded. Heating alone increased leaf appearance, death, extension, lamina size, leaf area index (LAI), tillering (month 1)and whole plant weight (month 2) and reduced stubble water-soluble carbohydrates and specific leaf weight (SLW). Shading alone increased leaf extension, lamina size and LAI but to a lesser extent than did heating. Shading decreased SLW, leaf death rate, tillering (month 2), stubble carbohydrates and whole plant weight, but not herbage weight. The effects of heating plus shading were similar to those of heating alone, except that the increases in leaf size, extension and LAI were even greater, and shoot bases and roots had low or negative growth rates. In general the heating treatments caused a rapid turnover of leaf material, but net herbage growth was relatively insensitive. It is concluded that (1) temperature rather than light was limiting whole plant growth, especially from mid-February to mid-March and (2) mild, dull weather in winter is likely to induce tiller death associated with reduced investment in carbohydrate reserves."
Language:English
References:13
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Thomas, H., and I. B. Norris. 1981. The influence of light and temperature during winter on growth and death in simulated swards of Lolium perenne. Grass Forage Sci. 36(2):p. 107-116.
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DOI: 10.1111/j.1365-2494.1981.tb01546.x
Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1981.tb01546.x/pdf
    Last checked: 03/26/2012
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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