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Record #139370:

Relationships between nitrogen economy and performance in the mountain birgh Betula pubescens ssp.tortuosa / P. Staffan Karlsson, M. Weih.

Title: Relationships between nitrogen economy and performance in the mountain birgh Betula pubescens ssp.tortuosa / P. Staffan Karlsson, M. Weih.
Author(s): Karlsson, P. Staffan.
Weih, M.
Date: 1996.
In: Ecological Bulletins. (1996.), Vol. 45 (1996)
Abstract: As for most green plants there is close relationship between birch seedling growth rate and nitrogen status. Soil temperature is important determinant of uptake rate. At soil temperature of 5 °C both rate of uptake and growth are close to zero, and above 15 °C growth increases only marginally. Optimum leaf nitrogen concentration is slightly higher than mean leaf nitrogen concentration in situ. Losses are mainly from leaf abscission, with contributions from fine root turnover, herbivory and, some years, reproduction.
Notes:

Ecological Bulletins. Vol. 45 :71-78 (1996).

In issue: Plant ecology in the subarctic Swedish Lapland, edited by P.S. Karlsson and T.V. Callaghan.

Keywords: 58.036 -- Plants, influence of temperature.
581.133.1 -- Nitrogen assimilation.
G -- Botany.
(*3) -- Arctic regions.
(*571.1) -- Norrbottens lan.
Location(s): SCO: SPRI-SHF: (*571.1) : 581.5
SPRI record no.: 139370

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245 10 ‡aRelationships between nitrogen economy and performance in the mountain birgh Betula pubescens ssp.tortuosa /‡cP. Staffan Karlsson, M. Weih.
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500 ## ‡aEcological Bulletins. Vol. 45 :71-78 (1996).
500 ## ‡aIn issue: Plant ecology in the subarctic Swedish Lapland, edited by P.S. Karlsson and T.V. Callaghan.
520 3# ‡aAs for most green plants there is close relationship between birch seedling growth rate and nitrogen status. Soil temperature is important determinant of uptake rate. At soil temperature of 5 °C both rate of uptake and growth are close to zero, and above 15 °C growth increases only marginally. Optimum leaf nitrogen concentration is slightly higher than mean leaf nitrogen concentration in situ. Losses are mainly from leaf abscission, with contributions from fine root turnover, herbivory and, some years, reproduction.
650 07 ‡a58.036 -- Plants, influence of temperature.‡2udc
650 07 ‡a581.133.1 -- Nitrogen assimilation.‡2udc
650 07 ‡aG -- Botany.‡2local
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