Počet záznamů: 1
The effect of enhanced nitrogen on aboveground biomass allocation and nutrient resorption in the fern Athyrium distentifolium
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SYSNO ASEP 0342877 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název The effect of enhanced nitrogen on aboveground biomass allocation and nutrient resorption in the fern Athyrium distentifolium Tvůrce(i) Holub, Petr (UEK-B) RID, ORCID, SAI
Tůma, Ivan (BU-J)Celkový počet autorů 2 Zdroj.dok. Plant Ecology. - : Springer - ISSN 1385-0237
Roč. 207, č. 2 (2010), s. 373-380Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova Fern ecology ; Fertilization ; Nutrient resorption ; Nitrogen ; Phosphorus Vědní obor RIV ED - Fyziologie CEP IAA600050616 GA AV ČR - Akademie věd CEZ AV0Z60870520 - UEK-B (2005-2011) AV0Z60050516 - BU-J (2005-2011) UT WOS 000275123700016 DOI 10.1007/s11258-009-9681-5 Anotace We measured aboveground biomass allocation and resorption of nitrogen (N) and phosphorus (P) in the fronds of a winter-deciduous fern Athyrium distentifolium in ambient and N-enhanced treatments. A.distentifolium formed taller fronds and petioles and allocated more biomass to supporting tissue relative to photosynthetically active leaf tissue in response to N addition. Resorption of P from green fronds was more efficient than N resorption (on average 50% P, 21% N from supporting and 44% P, 24% N from photosynthetic tissues were withdrawn during senescence). The N/P-ratios were higher in photosynthetic tissue in comparison with supporting tissue. In N-enhanced treatment, a positive relationship was found between the amount of supporting tissue relative to photosynthetic tissue and resorption of nutrients from photosynthetic tissue. However, higher N availability resulted in a significant decrease of N resorption efficiency in photosynthetic tissue of A. distentifolium. Pracoviště Ústav výzkumu globální změny Kontakt Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Rok sběru 2011
Počet záznamů: 1