Photosynthetic Response of Soybean to Microclimate in 26-Year-Old Tree-Based Intercropping Systems in Southern Ontario, Canada.
Identifieur interne : 001C00 ( Main/Exploration ); précédent : 001B99; suivant : 001C01Photosynthetic Response of Soybean to Microclimate in 26-Year-Old Tree-Based Intercropping Systems in Southern Ontario, Canada.
Auteurs : Xiaobang Peng [Canada] ; Naresh V. Thevathasan [Canada] ; Andrew M. Gordon [Canada] ; Idris Mohammed [Canada] ; Pengxiang Gao [République populaire de Chine]Source :
- PloS one [ 1932-6203 ] ; 2015.
Descripteurs français
- KwdFr :
- Acer (croissance et développement), Agriculture (méthodes), Analyse de régression (MeSH), Arbres (croissance et développement), Juglans (croissance et développement), Microclimat (MeSH), Ontario (MeSH), Photosynthèse (MeSH), Produits agricoles (croissance et développement), Rythme circadien (physiologie), Soja (physiologie).
- MESH :
- croissance et développement : Acer, Arbres, Juglans, Produits agricoles.
- méthodes : Agriculture.
- physiologie : Rythme circadien, Soja.
- Analyse de régression, Microclimat, Ontario, Photosynthèse.
English descriptors
- KwdEn :
- MESH :
- geographic : Ontario.
- growth & development : Acer, Crops, Agricultural, Juglans, Trees.
- methods : Agriculture.
- physiology : Circadian Rhythm, Soybeans.
- Microclimate, Photosynthesis, Regression Analysis.
Abstract
In order to study the effect of light competition and microclimatic modifications on the net assimilation (NA), growth and yield of soybean (Glycine max L.) as an understory crop, three 26-year-old soybean-tree (Acer saccharinum Marsh., Populus deltoides X nigra, Juglans nigra L.) intercropping systems were examined. Tree competition reduced photosynthetically active radiation (PAR) incident on soybeans and reduced net assimilation, growth and yield of soybean. Soil moisture of 20 cm depth close (< 3 m) to the tree rows was also reduced. Correlation analysis showed that NA and soil water content were highly correlated with growth and yield of soybean. When compared with the monoculture soybean system, the relative humidity (RH) of the poplar-soybean, silver maple-soybean, and black walnut-soybean intercropped systems was increased by 7.1%, 8.0% and 5.9%, soil water content was reduced by 37.8%, 26.3% and 30.9%, ambient temperature was reduced by 1.3°C, 1.4°C and 1.0°C, PAR was reduced by 53.6%, 57.9% and 39.9%, and air CO2 concentration was reduced by 3.7μmol·mol(-1), 4.2μmol·mol(-1) and 2.8μmol·mol(-1), respectively. Compared to the monoculture, the average NA of soybean in poplar, maple and walnut treatments was also reduced by 53.1%, 67.5% and 46.5%, respectively. Multivariate stepwise regression analysis showed that PAR, ambient temperature and CO2 concentration were the dominant factors influencing net photosynthetic rate.
DOI: 10.1371/journal.pone.0129467
PubMed: 26053375
PubMed Central: PMC4459881
Affiliations:
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Thevathasan</name><affiliation wicri:level="1"><nlm:affiliation>School of Environmental Sciences, University of Guelph, Guelph, Ontario, Canada.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>School of Environmental Sciences, University of Guelph, Guelph, Ontario</wicri:regionArea><wicri:noRegion>Ontario</wicri:noRegion></affiliation></author><author><name sortKey="Gordon, Andrew M" sort="Gordon, Andrew M" uniqKey="Gordon A" first="Andrew M" last="Gordon">Andrew M. Gordon</name><affiliation wicri:level="1"><nlm:affiliation>School of Environmental Sciences, University of Guelph, Guelph, Ontario, Canada.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>School of Environmental Sciences, University of Guelph, Guelph, Ontario</wicri:regionArea><wicri:noRegion>Ontario</wicri:noRegion></affiliation></author><author><name sortKey="Mohammed, Idris" sort="Mohammed, Idris" uniqKey="Mohammed I" first="Idris" last="Mohammed">Idris Mohammed</name><affiliation wicri:level="1"><nlm:affiliation>School of Environmental Sciences, University of Guelph, Guelph, Ontario, Canada.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>School of Environmental Sciences, University of Guelph, Guelph, Ontario</wicri:regionArea><wicri:noRegion>Ontario</wicri:noRegion></affiliation></author><author><name sortKey="Gao, Pengxiang" sort="Gao, Pengxiang" uniqKey="Gao P" first="Pengxiang" last="Gao">Pengxiang Gao</name><affiliation wicri:level="1"><nlm:affiliation>College of Forestry, Northwest A&F University, Yangling, Shaanxi, China.</nlm:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>College of Forestry, Northwest A&F University, Yangling, Shaanxi</wicri:regionArea><wicri:noRegion>Shaanxi</wicri:noRegion></affiliation></author></analytic><series><title level="j">PloS one</title><idno type="eISSN">1932-6203</idno><imprint><date when="2015" type="published">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acer (growth & development)</term><term>Agriculture (methods)</term><term>Circadian Rhythm (physiology)</term><term>Crops, Agricultural (growth & development)</term><term>Juglans (growth & development)</term><term>Microclimate (MeSH)</term><term>Ontario (MeSH)</term><term>Photosynthesis (MeSH)</term><term>Regression Analysis (MeSH)</term><term>Soybeans (physiology)</term><term>Trees (growth & development)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Acer (croissance et développement)</term><term>Agriculture (méthodes)</term><term>Analyse de régression (MeSH)</term><term>Arbres (croissance et développement)</term><term>Juglans (croissance et développement)</term><term>Microclimat (MeSH)</term><term>Ontario (MeSH)</term><term>Photosynthèse (MeSH)</term><term>Produits agricoles (croissance et développement)</term><term>Rythme circadien (physiologie)</term><term>Soja (physiologie)</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>Ontario</term></keywords><keywords scheme="MESH" qualifier="croissance et développement" xml:lang="fr"><term>Acer</term><term>Arbres</term><term>Juglans</term><term>Produits agricoles</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Acer</term><term>Crops, Agricultural</term><term>Juglans</term><term>Trees</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Agriculture</term></keywords><keywords scheme="MESH" qualifier="méthodes" xml:lang="fr"><term>Agriculture</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Rythme circadien</term><term>Soja</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Circadian Rhythm</term><term>Soybeans</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Microclimate</term><term>Photosynthesis</term><term>Regression Analysis</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Analyse de régression</term><term>Microclimat</term><term>Ontario</term><term>Photosynthèse</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In order to study the effect of light competition and microclimatic modifications on the net assimilation (NA), growth and yield of soybean (Glycine max L.) as an understory crop, three 26-year-old soybean-tree (Acer saccharinum Marsh., Populus deltoides X nigra, Juglans nigra L.) intercropping systems were examined. Tree competition reduced photosynthetically active radiation (PAR) incident on soybeans and reduced net assimilation, growth and yield of soybean. Soil moisture of 20 cm depth close (< 3 m) to the tree rows was also reduced. Correlation analysis showed that NA and soil water content were highly correlated with growth and yield of soybean. When compared with the monoculture soybean system, the relative humidity (RH) of the poplar-soybean, silver maple-soybean, and black walnut-soybean intercropped systems was increased by 7.1%, 8.0% and 5.9%, soil water content was reduced by 37.8%, 26.3% and 30.9%, ambient temperature was reduced by 1.3°C, 1.4°C and 1.0°C, PAR was reduced by 53.6%, 57.9% and 39.9%, and air CO2 concentration was reduced by 3.7μmol·mol(-1), 4.2μmol·mol(-1) and 2.8μmol·mol(-1), respectively. Compared to the monoculture, the average NA of soybean in poplar, maple and walnut treatments was also reduced by 53.1%, 67.5% and 46.5%, respectively. Multivariate stepwise regression analysis showed that PAR, ambient temperature and CO2 concentration were the dominant factors influencing net photosynthetic rate.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">26053375</PMID><DateCompleted><Year>2016</Year><Month>02</Month><Day>29</Day></DateCompleted><DateRevised><Year>2018</Year><Month>11</Month><Day>13</Day></DateRevised><Article PubModel="Electronic-eCollection"><Journal><ISSN IssnType="Electronic">1932-6203</ISSN><JournalIssue CitedMedium="Internet"><Volume>10</Volume><Issue>6</Issue><PubDate><Year>2015</Year></PubDate></JournalIssue><Title>PloS one</Title><ISOAbbreviation>PLoS One</ISOAbbreviation></Journal><ArticleTitle>Photosynthetic Response of Soybean to Microclimate in 26-Year-Old Tree-Based Intercropping Systems in Southern Ontario, Canada.</ArticleTitle><Pagination><MedlinePgn>e0129467</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1371/journal.pone.0129467</ELocationID><Abstract><AbstractText>In order to study the effect of light competition and microclimatic modifications on the net assimilation (NA), growth and yield of soybean (Glycine max L.) as an understory crop, three 26-year-old soybean-tree (Acer saccharinum Marsh., Populus deltoides X nigra, Juglans nigra L.) intercropping systems were examined. Tree competition reduced photosynthetically active radiation (PAR) incident on soybeans and reduced net assimilation, growth and yield of soybean. Soil moisture of 20 cm depth close (< 3 m) to the tree rows was also reduced. Correlation analysis showed that NA and soil water content were highly correlated with growth and yield of soybean. When compared with the monoculture soybean system, the relative humidity (RH) of the poplar-soybean, silver maple-soybean, and black walnut-soybean intercropped systems was increased by 7.1%, 8.0% and 5.9%, soil water content was reduced by 37.8%, 26.3% and 30.9%, ambient temperature was reduced by 1.3°C, 1.4°C and 1.0°C, PAR was reduced by 53.6%, 57.9% and 39.9%, and air CO2 concentration was reduced by 3.7μmol·mol(-1), 4.2μmol·mol(-1) and 2.8μmol·mol(-1), respectively. Compared to the monoculture, the average NA of soybean in poplar, maple and walnut treatments was also reduced by 53.1%, 67.5% and 46.5%, respectively. Multivariate stepwise regression analysis showed that PAR, ambient temperature and CO2 concentration were the dominant factors influencing net photosynthetic rate.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Peng</LastName><ForeName>Xiaobang</ForeName><Initials>X</Initials><AffiliationInfo><Affiliation>Department of Biological and Medical Engineering, Shangluo University, Shangluo, Shaanxi, China; School of Environmental Sciences, University of Guelph, Guelph, Ontario, Canada.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Thevathasan</LastName><ForeName>Naresh V</ForeName><Initials>NV</Initials><AffiliationInfo><Affiliation>School of Environmental Sciences, University of Guelph, Guelph, Ontario, Canada.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Gordon</LastName><ForeName>Andrew M</ForeName><Initials>AM</Initials><AffiliationInfo><Affiliation>School of Environmental Sciences, University of Guelph, Guelph, Ontario, Canada.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Mohammed</LastName><ForeName>Idris</ForeName><Initials>I</Initials><AffiliationInfo><Affiliation>School of Environmental Sciences, University of Guelph, Guelph, Ontario, Canada.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Gao</LastName><ForeName>Pengxiang</ForeName><Initials>P</Initials><AffiliationInfo><Affiliation>College of Forestry, Northwest A&F University, Yangling, Shaanxi, China.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2015</Year><Month>06</Month><Day>08</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>PLoS One</MedlineTA><NlmUniqueID>101285081</NlmUniqueID><ISSNLinking>1932-6203</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D031002" MajorTopicYN="N">Acer</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D000383" MajorTopicYN="N">Agriculture</DescriptorName><QualifierName UI="Q000379" MajorTopicYN="Y">methods</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002940" MajorTopicYN="N">Circadian Rhythm</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018556" MajorTopicYN="N">Crops, Agricultural</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D031324" MajorTopicYN="N">Juglans</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D008834" MajorTopicYN="Y">Microclimate</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D009864" MajorTopicYN="N" Type="Geographic">Ontario</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010788" MajorTopicYN="Y">Photosynthesis</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012044" MajorTopicYN="N">Regression Analysis</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013025" MajorTopicYN="N">Soybeans</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014197" MajorTopicYN="N">Trees</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2014</Year><Month>11</Month><Day>15</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2015</Year><Month>05</Month><Day>10</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2015</Year><Month>6</Month><Day>9</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2015</Year><Month>6</Month><Day>9</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2016</Year><Month>3</Month><Day>2</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>epublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">26053375</ArticleId><ArticleId IdType="doi">10.1371/journal.pone.0129467</ArticleId><ArticleId IdType="pii">PONE-D-14-42265</ArticleId><ArticleId IdType="pmc">PMC4459881</ArticleId></ArticleIdList><ReferenceList><Reference><Citation>Ying Yong Sheng Tai Xue Bao. 2008 Nov;19(11):2414-9</Citation><ArticleIdList><ArticleId IdType="pubmed">19238840</ArticleId></ArticleIdList></Reference><Reference><Citation>Planta. 1986 Sep;168(4):546-58</Citation><ArticleIdList><ArticleId IdType="pubmed">24232332</ArticleId></ArticleIdList></Reference></ReferenceList></PubmedData></pubmed><affiliations><list><country><li>Canada</li><li>République populaire de Chine</li></country></list><tree><country name="Canada"><noRegion><name sortKey="Peng, Xiaobang" sort="Peng, Xiaobang" uniqKey="Peng X" first="Xiaobang" last="Peng">Xiaobang Peng</name></noRegion><name sortKey="Gordon, Andrew M" sort="Gordon, Andrew M" uniqKey="Gordon A" first="Andrew M" last="Gordon">Andrew M. Gordon</name><name sortKey="Mohammed, Idris" sort="Mohammed, Idris" uniqKey="Mohammed I" first="Idris" last="Mohammed">Idris Mohammed</name><name sortKey="Thevathasan, Naresh V" sort="Thevathasan, Naresh V" uniqKey="Thevathasan N" first="Naresh V" last="Thevathasan">Naresh V. Thevathasan</name></country><country name="République populaire de Chine"><noRegion><name sortKey="Gao, Pengxiang" sort="Gao, Pengxiang" uniqKey="Gao P" first="Pengxiang" last="Gao">Pengxiang Gao</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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