An Analysis of Plant Growth and its Control in Arctic Environments
The relative growth-rate of plants grown on a vermiculite culture medium in an arctic climate during the growing season was about a quarter of that of comparable plants on the same medium in a temperate climate. In both climates the relative growth-rate was lower on natural soils than on vermiculite...
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fthighwire:oai:open-archive.highwire.org:annbot:30/3/383 2023-05-15T14:33:56+02:00 An Analysis of Plant Growth and its Control in Arctic Environments WILSON, J. WARREN 1966-07-01 00:00:00.0 text/html http://aob.oxfordjournals.org/cgi/content/short/30/3/383 en eng Oxford University Press http://aob.oxfordjournals.org/cgi/content/short/30/3/383 Copyright (C) 1966, Oxford University Press Articles TEXT 1966 fthighwire 2016-11-16T18:03:36Z The relative growth-rate of plants grown on a vermiculite culture medium in an arctic climate during the growing season was about a quarter of that of comparable plants on the same medium in a temperate climate. In both climates the relative growth-rate was lower on natural soils than on vermiculite. Net assimilation rates and, to a lesser extent, leaf-area ratios were depressed by arctic climates and soils. Net assimilation rates of seven species in various habitats in two arctic regions were about 0.1–0.3g dm−2wk−1. Previous suggestions that net assimilation rates in arctic regions equal or exceed those in temperate regions are attributed to misinterpretation of data or to inadequate methods. There is evidence that the depression of net assimilation rates in arctic regions is due to the low temperatures, which, especially when associated with soil nitrogen deficiency, reduce the rate at which assimilates are used in respiration and new growth; this causes sugars to accumulate to levels at which they depress assimilation. Text Arctic HighWire Press (Stanford University) Arctic |
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English |
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Articles WILSON, J. WARREN An Analysis of Plant Growth and its Control in Arctic Environments |
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description |
The relative growth-rate of plants grown on a vermiculite culture medium in an arctic climate during the growing season was about a quarter of that of comparable plants on the same medium in a temperate climate. In both climates the relative growth-rate was lower on natural soils than on vermiculite. Net assimilation rates and, to a lesser extent, leaf-area ratios were depressed by arctic climates and soils. Net assimilation rates of seven species in various habitats in two arctic regions were about 0.1–0.3g dm−2wk−1. Previous suggestions that net assimilation rates in arctic regions equal or exceed those in temperate regions are attributed to misinterpretation of data or to inadequate methods. There is evidence that the depression of net assimilation rates in arctic regions is due to the low temperatures, which, especially when associated with soil nitrogen deficiency, reduce the rate at which assimilates are used in respiration and new growth; this causes sugars to accumulate to levels at which they depress assimilation. |
format |
Text |
author |
WILSON, J. WARREN |
author_facet |
WILSON, J. WARREN |
author_sort |
WILSON, J. WARREN |
title |
An Analysis of Plant Growth and its Control in Arctic Environments |
title_short |
An Analysis of Plant Growth and its Control in Arctic Environments |
title_full |
An Analysis of Plant Growth and its Control in Arctic Environments |
title_fullStr |
An Analysis of Plant Growth and its Control in Arctic Environments |
title_full_unstemmed |
An Analysis of Plant Growth and its Control in Arctic Environments |
title_sort |
analysis of plant growth and its control in arctic environments |
publisher |
Oxford University Press |
publishDate |
1966 |
url |
http://aob.oxfordjournals.org/cgi/content/short/30/3/383 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
http://aob.oxfordjournals.org/cgi/content/short/30/3/383 |
op_rights |
Copyright (C) 1966, Oxford University Press |
_version_ |
1766307089812029440 |