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Statements

Subject Item
n2:RIV%2F00216224%3A14310%2F02%3A00006580%21RIV08-GA0-14310___
rdf:type
n15:Vysledek skos:Concept
dcterms:description
To test whether different nitrogen form (nitrate or ammonium) in substrate can alter the response to elevated partial pressure Of CO2 (PCO2) plants of perennial ryegrass (Lolium perenne cv. Bastion) were grown from seeds in growth chambers under PCO2 of either 35 Pa (ambient, CA) or 70 Pa (elevated, CE) in a hydroponic system (with nutrient and pH control) for 24 d. Nitrogen was supplied as ammonium, nitrate or an equimolar mixture of both N forms. Under CE plants grew faster than their counterparts under CA during the first 14 d but after 23 d of cultivation stimulation disappeared. Despite the strong positive effect of mixed forms of N on plant growth, the beneficial effect of CE was similar to that in the other,two N treatments. However, the almost alike final growth response to CE had different underlying mechanisms in different N treatments. Plants supplied with nitrate as a sole source of nitrogen had lower leaf mass ratio but much higher specific leaf area compared to plants supplied with ammon To test whether different nitrogen form (nitrate or ammonium) in substrate can alter the response to elevated partial pressure Of CO2 (PCO2) plants of perennial ryegrass (Lolium perenne cv. Bastion) were grown from seeds in growth chambers under PCO2 of either 35 Pa (ambient, CA) or 70 Pa (elevated, CE) in a hydroponic system (with nutrient and pH control) for 24 d. Nitrogen was supplied as ammonium, nitrate or an equimolar mixture of both N forms. Under CE plants grew faster than their counterparts under CA during the first 14 d but after 23 d of cultivation stimulation disappeared. Despite the strong positive effect of mixed forms of N on plant growth, the beneficial effect of CE was similar to that in the other,two N treatments. However, the almost alike final growth response to CE had different underlying mechanisms in different N treatments. Plants supplied with nitrate as a sole source of nitrogen had lower leaf mass ratio but much higher specific leaf area compared to plants supplied with ammon To test whether different nitrogen form (nitrate or ammonium) in substrate can alter the response to elevated partial pressure Of CO2 (PCO2) plants of perennial ryegrass (Lolium perenne cv. Bastion) were grown from seeds in growth chambers under PCO2 of either 35 Pa (ambient, CA) or 70 Pa (elevated, CE) in a hydroponic system (with nutrient and pH control) for 24 d. Nitrogen was supplied as ammonium, nitrate or an equimolar mixture of both N forms. Under CE plants grew faster than their counterparts under CA during the first 14 d but after 23 d of cultivation stimulation disappeared. Despite the strong positive effect of mixed forms of N on plant growth, the beneficial effect of CE was similar to that in the other,two N treatments. However, the almost alike final growth response to CE had different underlying mechanisms in different N treatments. Plants supplied with nitrate as a sole source of nitrogen had lower leaf mass ratio but much higher specific leaf area compared to plants supplied with ammon
dcterms:title
Does the response of perennial ryegrass to elevated CO2 depend on the form of the supplied nitrogen ? Does the response of perennial ryegrass to elevated CO2 depend on the form of the supplied nitrogen ? Does the response of perennial ryegrass to elevated CO2 depend on the form of the supplied nitrogen ?
skos:prefLabel
Does the response of perennial ryegrass to elevated CO2 depend on the form of the supplied nitrogen ? Does the response of perennial ryegrass to elevated CO2 depend on the form of the supplied nitrogen ? Does the response of perennial ryegrass to elevated CO2 depend on the form of the supplied nitrogen ?
skos:notation
RIV/00216224:14310/02:00006580!RIV08-GA0-14310___
n3:strany
51-58
n3:aktivita
n12:P
n3:aktivity
P(GA206/98/P268)
n3:cisloPeriodika
1
n3:dodaniDat
n6:2008
n3:domaciTvurceVysledku
n8:7650825
n3:druhVysledku
n13:J
n3:duvernostUdaju
n5:S
n3:entitaPredkladatele
n11:predkladatel
n3:idSjednocenehoVysledku
643542
n3:idVysledku
RIV/00216224:14310/02:00006580
n3:jazykVysledku
n16:eng
n3:klicovaSlova
ammonium; Lolium perenne; nitrate; nitrogen source
n3:klicoveSlovo
n4:Lolium%20perenne n4:nitrate n4:ammonium n4:nitrogen%20source
n3:kodStatuVydavatele
CH - Švýcarská konfederace
n3:kontrolniKodProRIV
[547FABF44027]
n3:nazevZdroje
Biologia Plantarum
n3:obor
n17:EF
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
5
n3:projekt
n10:GA206%2F98%2FP268
n3:rokUplatneniVysledku
n6:2002
n3:svazekPeriodika
45
n3:tvurceVysledku
Frehner, Marco Nösberger, Josef Lüscher, Andreas Hartwig, Ueli Gloser, Vít
s:issn
0006-3134
s:numberOfPages
8
n18:organizacniJednotka
14310