Regulation of tillering in sorghum: environmental effects
Identifieur interne : 001724 ( Pmc/Corpus ); précédent : 001723; suivant : 001725Regulation of tillering in sorghum: environmental effects
Auteurs : Hae Koo Kim ; Erik Van Oosterom ; Michael Dingkuhn ; Delphine Luquet ; Graeme HammerSource :
- Annals of Botany [ 0305-7364 ] ; 2010.
Abstract
Tillering has a significant effect on canopy development and, hence, on resource capture, crop growth and grain yield in sorghum. However, the physiological basis of tillering and its regulation by environmental effects are not fully understood. The objective of this study was to understand and quantify the environmental effects on tillering in sorghum using a carbohydrate supply–demand framework.
A series of five experiments with a wide range of radiation and temperature conditions was conducted and details of the tillering responses of a single representative hybrid were monitored. The concept of internal plant competition for carbohydrate was developed for analysis of these responses.
Tiller appearance was highly synchronized with main shoot leaf appearance, with a consistent hierarchy for tillering across environments. The main environmental effect was on the frequency of tiller appearance, in particular of the lower-rank tillers. This explained some of the observed environmental differences in the onset of tillering. A generalized index of internal plant competition, which took account of plant assimilate supply and demand (
This result was consistent with the hypothesis that internal plant competition for assimilates regulates tillering in sorghum. Hence, the framework outlined has a predictive value that could provide the basis for dynamic simulation of tillering in crop growth models.
Url:
DOI: 10.1093/aob/mcq079
PubMed: 20421230
PubMed Central: 2889793
Links to Exploration step
PMC:2889793Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Regulation of tillering in sorghum: environmental effects</title>
<author><name sortKey="Kim, Hae Koo" sort="Kim, Hae Koo" uniqKey="Kim H" first="Hae Koo" last="Kim">Hae Koo Kim</name>
<affiliation><nlm:aff id="af1"><addr-line>The University of Queensland, School of Land, Crop and Food Sciences, Brisbane, QLD 4072, Australia</addr-line>
</nlm:aff>
</affiliation>
<affiliation><nlm:aff id="af2"><addr-line>CIRAD, UPR 59, Avenue Agropolis Lavalette TA A 59/01, 34398 Montpellier, France</addr-line>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Van Oosterom, Erik" sort="Van Oosterom, Erik" uniqKey="Van Oosterom E" first="Erik" last="Van Oosterom">Erik Van Oosterom</name>
<affiliation><nlm:aff id="af1"><addr-line>The University of Queensland, School of Land, Crop and Food Sciences, Brisbane, QLD 4072, Australia</addr-line>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Dingkuhn, Michael" sort="Dingkuhn, Michael" uniqKey="Dingkuhn M" first="Michael" last="Dingkuhn">Michael Dingkuhn</name>
<affiliation><nlm:aff id="af2"><addr-line>CIRAD, UPR 59, Avenue Agropolis Lavalette TA A 59/01, 34398 Montpellier, France</addr-line>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Luquet, Delphine" sort="Luquet, Delphine" uniqKey="Luquet D" first="Delphine" last="Luquet">Delphine Luquet</name>
<affiliation><nlm:aff id="af2"><addr-line>CIRAD, UPR 59, Avenue Agropolis Lavalette TA A 59/01, 34398 Montpellier, France</addr-line>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Hammer, Graeme" sort="Hammer, Graeme" uniqKey="Hammer G" first="Graeme" last="Hammer">Graeme Hammer</name>
<affiliation><nlm:aff id="af1"><addr-line>The University of Queensland, School of Land, Crop and Food Sciences, Brisbane, QLD 4072, Australia</addr-line>
</nlm:aff>
</affiliation>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">PMC</idno>
<idno type="pmid">20421230</idno>
<idno type="pmc">2889793</idno>
<idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2889793</idno>
<idno type="RBID">PMC:2889793</idno>
<idno type="doi">10.1093/aob/mcq079</idno>
<date when="2010">2010</date>
<idno type="wicri:Area/Pmc/Corpus">001724</idno>
<idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">001724</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Regulation of tillering in sorghum: environmental effects</title>
<author><name sortKey="Kim, Hae Koo" sort="Kim, Hae Koo" uniqKey="Kim H" first="Hae Koo" last="Kim">Hae Koo Kim</name>
<affiliation><nlm:aff id="af1"><addr-line>The University of Queensland, School of Land, Crop and Food Sciences, Brisbane, QLD 4072, Australia</addr-line>
</nlm:aff>
</affiliation>
<affiliation><nlm:aff id="af2"><addr-line>CIRAD, UPR 59, Avenue Agropolis Lavalette TA A 59/01, 34398 Montpellier, France</addr-line>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Van Oosterom, Erik" sort="Van Oosterom, Erik" uniqKey="Van Oosterom E" first="Erik" last="Van Oosterom">Erik Van Oosterom</name>
<affiliation><nlm:aff id="af1"><addr-line>The University of Queensland, School of Land, Crop and Food Sciences, Brisbane, QLD 4072, Australia</addr-line>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Dingkuhn, Michael" sort="Dingkuhn, Michael" uniqKey="Dingkuhn M" first="Michael" last="Dingkuhn">Michael Dingkuhn</name>
<affiliation><nlm:aff id="af2"><addr-line>CIRAD, UPR 59, Avenue Agropolis Lavalette TA A 59/01, 34398 Montpellier, France</addr-line>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Luquet, Delphine" sort="Luquet, Delphine" uniqKey="Luquet D" first="Delphine" last="Luquet">Delphine Luquet</name>
<affiliation><nlm:aff id="af2"><addr-line>CIRAD, UPR 59, Avenue Agropolis Lavalette TA A 59/01, 34398 Montpellier, France</addr-line>
</nlm:aff>
</affiliation>
</author>
<author><name sortKey="Hammer, Graeme" sort="Hammer, Graeme" uniqKey="Hammer G" first="Graeme" last="Hammer">Graeme Hammer</name>
<affiliation><nlm:aff id="af1"><addr-line>The University of Queensland, School of Land, Crop and Food Sciences, Brisbane, QLD 4072, Australia</addr-line>
</nlm:aff>
</affiliation>
</author>
</analytic>
<series><title level="j">Annals of Botany</title>
<idno type="ISSN">0305-7364</idno>
<idno type="eISSN">1095-8290</idno>
<imprint><date when="2010">2010</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc><textClass></textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en"><sec><title>Background and Aims</title>
<p>Tillering has a significant effect on canopy development and, hence, on resource capture, crop growth and grain yield in sorghum. However, the physiological basis of tillering and its regulation by environmental effects are not fully understood. The objective of this study was to understand and quantify the environmental effects on tillering in sorghum using a carbohydrate supply–demand framework.</p>
</sec>
<sec><title>Methods</title>
<p>A series of five experiments with a wide range of radiation and temperature conditions was conducted and details of the tillering responses of a single representative hybrid were monitored. The concept of internal plant competition for carbohydrate was developed for analysis of these responses.</p>
</sec>
<sec><title>Key Results</title>
<p>Tiller appearance was highly synchronized with main shoot leaf appearance, with a consistent hierarchy for tillering across environments. The main environmental effect was on the frequency of tiller appearance, in particular of the lower-rank tillers. This explained some of the observed environmental differences in the onset of tillering. A generalized index of internal plant competition, which took account of plant assimilate supply and demand (<italic>S</italic>
/<italic>D</italic>
<sub>index</sub>
) during the critical period for tillering, explained most of the variation in maximum tiller number observed across the five experiments.</p>
</sec>
<sec><title>Conclusions</title>
<p>This result was consistent with the hypothesis that internal plant competition for assimilates regulates tillering in sorghum. Hence, the framework outlined has a predictive value that could provide the basis for dynamic simulation of tillering in crop growth models.</p>
</sec>
</div>
</front>
</TEI>
<pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front><journal-meta><journal-id journal-id-type="nlm-ta">Ann Bot</journal-id>
<journal-id journal-id-type="publisher-id">annbot</journal-id>
<journal-id journal-id-type="hwp">annbot</journal-id>
<journal-title-group><journal-title>Annals of Botany</journal-title>
</journal-title-group>
<issn pub-type="ppub">0305-7364</issn>
<issn pub-type="epub">1095-8290</issn>
<publisher><publisher-name>Oxford University Press</publisher-name>
</publisher>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">20421230</article-id>
<article-id pub-id-type="pmc">2889793</article-id>
<article-id pub-id-type="doi">10.1093/aob/mcq079</article-id>
<article-id pub-id-type="publisher-id">mcq079</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Original Articles</subject>
</subj-group>
</article-categories>
<title-group><article-title>Regulation of tillering in sorghum: environmental effects</article-title>
</title-group>
<contrib-group><contrib contrib-type="author"><name><surname>Kim</surname>
<given-names>Hae Koo</given-names>
</name>
<xref ref-type="aff" rid="af1">1</xref>
<xref ref-type="aff" rid="af2">2</xref>
<xref ref-type="author-notes" rid="FN1">†</xref>
</contrib>
<contrib contrib-type="author"><name><surname>van Oosterom</surname>
<given-names>Erik</given-names>
</name>
<xref ref-type="aff" rid="af1">1</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Dingkuhn</surname>
<given-names>Michael</given-names>
</name>
<xref ref-type="aff" rid="af2">2</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Luquet</surname>
<given-names>Delphine</given-names>
</name>
<xref ref-type="aff" rid="af2">2</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Hammer</surname>
<given-names>Graeme</given-names>
</name>
<xref ref-type="aff" rid="af1">1</xref>
<xref ref-type="corresp" rid="cor1">*</xref>
</contrib>
</contrib-group>
<aff id="af1"><label>1</label>
<addr-line>The University of Queensland, School of Land, Crop and Food Sciences, Brisbane, QLD 4072, Australia</addr-line>
</aff>
<aff id="af2"><label>2</label>
<addr-line>CIRAD, UPR 59, Avenue Agropolis Lavalette TA A 59/01, 34398 Montpellier, France</addr-line>
</aff>
<author-notes><corresp id="cor1"><label>*</label>
For correspondence. E-mail <email>g.hammer@uq.edu.au</email>
</corresp>
<fn id="FN1"><label>†</label>
<p>Current address: Pohang University of Science and Technology, Biofluid and Biomimic Research Center, San 31, Hyoja Dong, Namgu, Pohang, 790-784, South Korea.</p>
</fn>
</author-notes>
<pub-date pub-type="ppub"><month>7</month>
<year>2010</year>
</pub-date>
<pub-date pub-type="epub"><day>26</day>
<month>4</month>
<year>2010</year>
</pub-date>
<volume>106</volume>
<issue>1</issue>
<issue-title>Special Issue: Highlight on Plants at Low pH</issue-title>
<fpage>57</fpage>
<lpage>67</lpage>
<history><date date-type="received"><day>30</day>
<month>9</month>
<year>2009</year>
</date>
<date date-type="rev-recd"><day>8</day>
<month>1</month>
<year>2010</year>
</date>
<date date-type="accepted"><day>2</day>
<month>3</month>
<year>2010</year>
</date>
</history>
<permissions><copyright-statement>© The Author 2010. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org</copyright-statement>
</permissions>
<abstract><sec><title>Background and Aims</title>
<p>Tillering has a significant effect on canopy development and, hence, on resource capture, crop growth and grain yield in sorghum. However, the physiological basis of tillering and its regulation by environmental effects are not fully understood. The objective of this study was to understand and quantify the environmental effects on tillering in sorghum using a carbohydrate supply–demand framework.</p>
</sec>
<sec><title>Methods</title>
<p>A series of five experiments with a wide range of radiation and temperature conditions was conducted and details of the tillering responses of a single representative hybrid were monitored. The concept of internal plant competition for carbohydrate was developed for analysis of these responses.</p>
</sec>
<sec><title>Key Results</title>
<p>Tiller appearance was highly synchronized with main shoot leaf appearance, with a consistent hierarchy for tillering across environments. The main environmental effect was on the frequency of tiller appearance, in particular of the lower-rank tillers. This explained some of the observed environmental differences in the onset of tillering. A generalized index of internal plant competition, which took account of plant assimilate supply and demand (<italic>S</italic>
/<italic>D</italic>
<sub>index</sub>
) during the critical period for tillering, explained most of the variation in maximum tiller number observed across the five experiments.</p>
</sec>
<sec><title>Conclusions</title>
<p>This result was consistent with the hypothesis that internal plant competition for assimilates regulates tillering in sorghum. Hence, the framework outlined has a predictive value that could provide the basis for dynamic simulation of tillering in crop growth models.</p>
</sec>
</abstract>
<kwd-group><kwd>Carbohydrate supply–demand ratio</kwd>
<kwd>internal plant competition</kwd>
<kwd>leaf area development</kwd>
<kwd>modelling</kwd>
<kwd>radiation</kwd>
<kwd><italic>Sorghum bicolor</italic>
</kwd>
<kwd>temperature</kwd>
<kwd>tiller hierarchy</kwd>
</kwd-group>
</article-meta>
</front>
</pmc>
</record>
Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Asie/explor/AustralieFrV1/Data/Pmc/Corpus
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 001724 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Pmc/Corpus/biblio.hfd -nk 001724 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien |wiki= Wicri/Asie |area= AustralieFrV1 |flux= Pmc |étape= Corpus |type= RBID |clé= PMC:2889793 |texte= Regulation of tillering in sorghum: environmental effects }}
Pour générer des pages wiki
HfdIndexSelect -h $EXPLOR_AREA/Data/Pmc/Corpus/RBID.i -Sk "pubmed:20421230" \ | HfdSelect -Kh $EXPLOR_AREA/Data/Pmc/Corpus/biblio.hfd \ | NlmPubMed2Wicri -a AustralieFrV1
![]() | This area was generated with Dilib version V0.6.33. | ![]() |