Whole-tree carbon and nitrogen partitioning in young hybrid poplars.
Identifieur interne : 004C73 ( Main/Exploration ); précédent : 004C72; suivant : 004C74Whole-tree carbon and nitrogen partitioning in young hybrid poplars.
Auteurs : Kurt S. Pregitzer [États-Unis] ; Donald I. Dickmann ; Ron Hendrick ; Phu V. NguyenSource :
- Tree physiology [ 1758-4469 ] ; 1990.
Abstract
The effects of water, nitrogen (N), and genotype on whole-tree carbon and nitrogen partitioning were examined in two Populus genotypes grown from cuttings in large pots set in the ground. Four replicate trees from each genotype/water/N treatment combination were harvested in either August, September, or November of their first year of growth. Aboveground biomass was linearly related to total leaf area. Clones allocated photosynthate differently. Populus tristis x P. balsamifera cv. Tristis #1 produced 14.5 cm of fine roots (< 0.5 cm diameter) per cm(2) of foliage, whereas P. x euramericana cv. Eugenei only produced 4.0 cm of fine roots per cm(2) of foliage. The large diameter structural roots of Eugenei grew rapidly late in the growing season so that large-root biomass was 3.8 to 7.5 times greater in November than in mid-August. In both clones, the root system grew twice as fast as the stem and branches late in the year. During August, about 75% of total tree N was in the canopy, but at least 80% of the September N content was still present in November following leaf fall. The major site of N storage was the large diameter structural roots. Nitrogen concentrations in these roots doubled following bud set.
DOI: 10.1093/treephys/7.1-2-3-4.79
PubMed: 14972907
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Dickmann</name></author><author><name sortKey="Hendrick, Ron" sort="Hendrick, Ron" uniqKey="Hendrick R" first="Ron" last="Hendrick">Ron Hendrick</name></author><author><name sortKey="Nguyen, Phu V" sort="Nguyen, Phu V" uniqKey="Nguyen P" first="Phu V." last="Nguyen">Phu V. Nguyen</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="1990">1990</date><idno type="RBID">pubmed:14972907</idno><idno type="pmid">14972907</idno><idno type="doi">10.1093/treephys/7.1-2-3-4.79</idno><idno type="wicri:Area/Main/Corpus">004C74</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">004C74</idno><idno type="wicri:Area/Main/Curation">004C74</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">004C74</idno><idno type="wicri:Area/Main/Exploration">004C74</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Whole-tree carbon and nitrogen partitioning in young hybrid poplars.</title><author><name sortKey="Pregitzer, Kurt S" sort="Pregitzer, Kurt S" uniqKey="Pregitzer K" first="Kurt S." last="Pregitzer">Kurt S. Pregitzer</name><affiliation wicri:level="4"><nlm:affiliation>Department of Forestry, Michigan State University, East Lansing, MI 48824-1222, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Forestry, Michigan State University, East Lansing, MI 48824-1222</wicri:regionArea><placeName><region type="state">Michigan</region><settlement type="city">East Lansing</settlement></placeName><orgName type="university">Université d'État du Michigan</orgName></affiliation></author><author><name sortKey="Dickmann, Donald I" sort="Dickmann, Donald I" uniqKey="Dickmann D" first="Donald I." last="Dickmann">Donald I. Dickmann</name></author><author><name sortKey="Hendrick, Ron" sort="Hendrick, Ron" uniqKey="Hendrick R" first="Ron" last="Hendrick">Ron Hendrick</name></author><author><name sortKey="Nguyen, Phu V" sort="Nguyen, Phu V" uniqKey="Nguyen P" first="Phu V." last="Nguyen">Phu V. Nguyen</name></author></analytic><series><title level="j">Tree physiology</title><idno type="eISSN">1758-4469</idno><imprint><date when="1990" type="published">1990</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The effects of water, nitrogen (N), and genotype on whole-tree carbon and nitrogen partitioning were examined in two Populus genotypes grown from cuttings in large pots set in the ground. Four replicate trees from each genotype/water/N treatment combination were harvested in either August, September, or November of their first year of growth. Aboveground biomass was linearly related to total leaf area. Clones allocated photosynthate differently. Populus tristis x P. balsamifera cv. Tristis #1 produced 14.5 cm of fine roots (< 0.5 cm diameter) per cm(2) of foliage, whereas P. x euramericana cv. Eugenei only produced 4.0 cm of fine roots per cm(2) of foliage. The large diameter structural roots of Eugenei grew rapidly late in the growing season so that large-root biomass was 3.8 to 7.5 times greater in November than in mid-August. In both clones, the root system grew twice as fast as the stem and branches late in the year. During August, about 75% of total tree N was in the canopy, but at least 80% of the September N content was still present in November following leaf fall. The major site of N storage was the large diameter structural roots. Nitrogen concentrations in these roots doubled following bud set.</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">14972907</PMID><DateRevised><Year>2019</Year><Month>11</Month><Day>20</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1758-4469</ISSN><JournalIssue CitedMedium="Internet"><Volume>7</Volume><Issue>1_2_3_4</Issue><PubDate><Year>1990</Year><Month>Dec</Month></PubDate></JournalIssue><Title>Tree physiology</Title><ISOAbbreviation>Tree Physiol</ISOAbbreviation></Journal><ArticleTitle>Whole-tree carbon and nitrogen partitioning in young hybrid poplars.</ArticleTitle><Pagination><MedlinePgn>79-93</MedlinePgn></Pagination><Abstract><AbstractText>The effects of water, nitrogen (N), and genotype on whole-tree carbon and nitrogen partitioning were examined in two Populus genotypes grown from cuttings in large pots set in the ground. Four replicate trees from each genotype/water/N treatment combination were harvested in either August, September, or November of their first year of growth. Aboveground biomass was linearly related to total leaf area. Clones allocated photosynthate differently. Populus tristis x P. balsamifera cv. Tristis #1 produced 14.5 cm of fine roots (< 0.5 cm diameter) per cm(2) of foliage, whereas P. x euramericana cv. Eugenei only produced 4.0 cm of fine roots per cm(2) of foliage. The large diameter structural roots of Eugenei grew rapidly late in the growing season so that large-root biomass was 3.8 to 7.5 times greater in November than in mid-August. In both clones, the root system grew twice as fast as the stem and branches late in the year. During August, about 75% of total tree N was in the canopy, but at least 80% of the September N content was still present in November following leaf fall. The major site of N storage was the large diameter structural roots. Nitrogen concentrations in these roots doubled following bud set.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Pregitzer</LastName><ForeName>Kurt S.</ForeName><Initials>KS</Initials><AffiliationInfo><Affiliation>Department of Forestry, Michigan State University, East Lansing, MI 48824-1222, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Dickmann</LastName><ForeName>Donald I.</ForeName><Initials>DI</Initials></Author><Author ValidYN="Y"><LastName>Hendrick</LastName><ForeName>Ron</ForeName><Initials>R</Initials></Author><Author ValidYN="Y"><LastName>Nguyen</LastName><ForeName>Phu V.</ForeName><Initials>PV</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>Canada</Country><MedlineTA>Tree Physiol</MedlineTA><NlmUniqueID>100955338</NlmUniqueID><ISSNLinking>0829-318X</ISSNLinking></MedlineJournalInfo></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>1990</Year><Month>12</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>1990</Year><Month>12</Month><Day>1</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>1990</Year><Month>12</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">14972907</ArticleId><ArticleId IdType="doi">10.1093/treephys/7.1-2-3-4.79</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country><region><li>Michigan</li></region><settlement><li>East Lansing</li></settlement><orgName><li>Université d'État du Michigan</li></orgName></list><tree><noCountry><name sortKey="Dickmann, Donald I" sort="Dickmann, Donald I" uniqKey="Dickmann D" first="Donald I." last="Dickmann">Donald I. Dickmann</name><name sortKey="Hendrick, Ron" sort="Hendrick, Ron" uniqKey="Hendrick R" first="Ron" last="Hendrick">Ron Hendrick</name><name sortKey="Nguyen, Phu V" sort="Nguyen, Phu V" uniqKey="Nguyen P" first="Phu V." last="Nguyen">Phu V. Nguyen</name></noCountry><country name="États-Unis"><region name="Michigan"><name sortKey="Pregitzer, Kurt S" sort="Pregitzer, Kurt S" uniqKey="Pregitzer K" first="Kurt S." last="Pregitzer">Kurt S. Pregitzer</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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