Ecophysiological responses by loess grassland vegetation to elevated air C02 concentration in a miniFACE system

Nagy, Zoltán: Ecophysiological responses by loess grassland vegetation to elevated air C02 concentration in a miniFACE system. Acta biologica Szegediensis, (46) 3-4. pp. 215-217. (2002)

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Abstract

The experiment focused on the responses by loess grassland vegetation to elevated air CO2 concentration (EC) with N as the second factor. Investigated responses include growth dynamics at stand (LAI) and at individual plant level (RGR). Leaf scale CO2/H2O gas exchange, shoot carbohydrate content, canopy surface temperatures and above ground dry matter production have also been measured. LAI has been slightly decreased by EC concentrations in both the high and low N treatments. RGR was lower in the monocots in the EC treatment than in the ambient, while similar growth depression was not found in the dicots. These results are in agreement with the dawn-evening carbohydrate pattern and CO2 gasexchange in the leaves of the same species. Canopy surface temperatures were higher during the day in the EC treatment than in the ambient with average difference of 1.5ºC. The yield has not increased in the multi-species loess stands due to EC.

Item Type: Article
Event Title: Hungarian Congress on Plant Physiology, 7., 2002, Szeged
Journal or Publication Title: Acta biologica Szegediensis
Date: 2002
Volume: 46
Number: 3-4
Page Range: pp. 215-217
ISSN: 1588-385X
Language: angol
Heading title: Ecophysiology; Proceedings of the 7th Hungarian Congress on Plant Physiology
Uncontrolled Keywords: Természettudomány, Biológia
Additional Information: Bibliogr.: p. 216-217.; Abstract
Date Deposited: 2016. Oct. 17. 09:25
Last Modified: 2018. May. 28. 11:46
URI: http://acta.bibl.u-szeged.hu/id/eprint/22566

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