Photosynthetic assimilation of sun versus shade Norway spruce [Picea abies (L.)Karst] needles under the long-term impact of elevated CO2 concentration

0170668 - UEK-B 20020035 RIV CZ eng J - Journal Article
Marek, Michal V. - Urban, Otmar - Šprtová, Miroslava - Pokorný, Radek - Rosová, Zuzana - Kulhavý, J.
Photosynthetic assimilation of sun versus shade Norway spruce [Picea abies (L.)Karst] needles under the long-term impact of elevated CO2 concentration.
Photosynthetica. Roč. 40, č. 2 (2002), s. 259-267. ISSN 0300-3604. E-ISSN 1573-9058
R&D Projects: GA MŠMT LN00A141; GA AV ČR IBS6087005
Institutional research plan: CEZ:AV0Z6087904
Keywords : stand density * sun/shade * carboxylation efficiency and rate
Subject RIV: EH - Ecology, Behaviour
Impact factor: 0.773, year: 2002

The long-term impact of elevated concentration of CO2 on assimilation activity of sun-exposed versus shaded foliage was investigated in a Norway spruce stand after three years of cultivation in two domes with adjustable windows (DAW). One DAW was supplied with ambient air and second with elevated CO2 concentration. The prolonged exposure to EC was responsible for the apparent assimilatory activity stimulation observed mainly in deeply shaded needles. The degree of this stimulation decreases in the order: S-needles dense part > S-needles sparse part > E-needles dense part > E-needles sparse part.
Permanent Link: http://hdl.handle.net/11104/0067751