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Statements

Subject Item
n2:RIV%2F62156489%3A43410%2F11%3A00183778%21RIV14-MSM-43410___
rdf:type
n13:Vysledek skos:Concept
dcterms:description
Studies of selected morphological needle parameters were carried out on young (17--19 year old)Norway spruce trees cultivated inside glass domes at ambient (A, 370 umol (CO2) mol-1) and elevated (E, 700 umol (CO2) mol-1) atmospheric CO2 concentrations [CO2] beginning in 1997. Annual analyses performed from 2002 to 2004 revealed higher values for needle length (especially for current needles, up to 18%) and projected needle area (up to 13%) accompanied by lower values for specific needle area (up to 15% lower, as quantified by needle mass to projected area ratio) in the E treatment compared to the A treatment. Statistically significant differences for most of the investigated morphological parameters were found in young needles in the well irradiated sun-adapted crown parts, particularly under water limiting soil conditions in 2003. This was likely a result of different water relations in E compared to A trees as investigated under temperate water stress (Kuper et al. in Biol Plantarum 50:603--609, 2006). Furthermore, E trees had much higher absorbing root area, which modified and enhanced root:shoot as well as root:conductive stem area proportions. These hydraulic properties and early seasonal stimulation of photosynthesis forced advanced needle development in E trees, particularly under limited soil water conditions. The number of needles per unit shoot length was found to be unaffected by elevated [CO2]. Studies of selected morphological needle parameters were carried out on young (17--19 year old)Norway spruce trees cultivated inside glass domes at ambient (A, 370 umol (CO2) mol-1) and elevated (E, 700 umol (CO2) mol-1) atmospheric CO2 concentrations [CO2] beginning in 1997. Annual analyses performed from 2002 to 2004 revealed higher values for needle length (especially for current needles, up to 18%) and projected needle area (up to 13%) accompanied by lower values for specific needle area (up to 15% lower, as quantified by needle mass to projected area ratio) in the E treatment compared to the A treatment. Statistically significant differences for most of the investigated morphological parameters were found in young needles in the well irradiated sun-adapted crown parts, particularly under water limiting soil conditions in 2003. This was likely a result of different water relations in E compared to A trees as investigated under temperate water stress (Kuper et al. in Biol Plantarum 50:603--609, 2006). Furthermore, E trees had much higher absorbing root area, which modified and enhanced root:shoot as well as root:conductive stem area proportions. These hydraulic properties and early seasonal stimulation of photosynthesis forced advanced needle development in E trees, particularly under limited soil water conditions. The number of needles per unit shoot length was found to be unaffected by elevated [CO2].
dcterms:title
The effects of elevated atmospheric [CO2] on Norway spruce needle parameters The effects of elevated atmospheric [CO2] on Norway spruce needle parameters
skos:prefLabel
The effects of elevated atmospheric [CO2] on Norway spruce needle parameters The effects of elevated atmospheric [CO2] on Norway spruce needle parameters
skos:notation
RIV/62156489:43410/11:00183778!RIV14-MSM-43410___
n13:predkladatel
n15:orjk%3A43410
n3:aktivita
n4:S n4:P n4:Z
n3:aktivity
P(IAA600870701), P(SP/2D1/70/08), P(SP/2D1/93/07), S, Z(AV0Z60870520)
n3:cisloPeriodika
6
n3:dodaniDat
n12:2014
n3:domaciTvurceVysledku
n14:5865662 n14:8834822
n3:druhVysledku
n6:J
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n20:predkladatel
n3:idSjednocenehoVysledku
196624
n3:idVysledku
RIV/62156489:43410/11:00183778
n3:jazykVysledku
n9:eng
n3:klicovaSlova
morphology; carbon dioxide; Picea abies L. (Karst.)
n3:klicoveSlovo
n8:Picea%20abies%20L.%20%28Karst.%29 n8:carbon%20dioxide n8:morphology
n3:kodStatuVydavatele
DE - Spolková republika Německo
n3:kontrolniKodProRIV
[8880395D7E88]
n3:nazevZdroje
Acta Physiologiae Plantarum
n3:obor
n17:EH
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
3
n3:projekt
n10:SP%2F2D1%2F70%2F08 n10:SP%2F2D1%2F93%2F07 n10:IAA600870701
n3:rokUplatneniVysledku
n12:2011
n3:svazekPeriodika
33
n3:tvurceVysledku
Pokorný, Radek Tomášková, Ivana Marek, Michal Vladimír
n3:wos
296009600021
n3:zamer
n11:AV0Z60870520
s:issn
0137-5881
s:numberOfPages
9
n21:doi
10.1007/s11738-011-0766-0
n16:organizacniJednotka
43410