Influence of phosphorus level on VA Mycorrhizal colonization and growth of cowpea cultivars
Identifieur interne : 003E86 ( Main/Exploration ); précédent : 003E85; suivant : 003E87Influence of phosphorus level on VA Mycorrhizal colonization and growth of cowpea cultivars
Auteurs : S. Rajapakse [États-Unis] ; A. Zuberer [États-Unis] ; C. Miller Jr. [États-Unis]Source :
- Plant and Soil [ 0032-079X ] ; 1989-02-01.
Abstract
Abstract: Vesicular-arbuscular mycorrhizal (VAM) associations often vary according to the abundance of available soil phosphorus (P). Therefore, understanding the response of crop plants to colonization by VAM fungi necessitates the study of the response of colonized and noncolonized plants, from a range of cultivars, to differing levels of P. Cowpea is grown throughout the world, often on impoverished soils in which it can benefit from formation of mycorrhizae. The present study was conducted to determine the response of four cultivars of cowpea (Vigna unguiculata (L.) Walp.), varying in nitrogen fixation capacity, to inoculation withGlomus fasciculatum at four levels of added P in the rooting medium. In a greenhouse experiment, four cowpea cultivars, Mississippi Silver, Brown Crowder, Six Week Browneye and MI 35, were grown with and without the mycorrhizal fungus at four levels of added P, 0, 10, 20 and 30 ppm. Root colonization (%) was negatively correlated with P content of the growth medium and shoot P concentration. Intraspecific variability was shown for shoot dry weight and leaf area in response to inoculation withG. fasciculatum at different P levels. The range of P required in the growth medium which allowed benefit fromG. fasciculatum was identified for individual cultivars using shoot dry weight and leaf area, and collectively across cultivars for other parameters.
Url:
DOI: 10.1007/BF02203080
Affiliations:
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<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Influence of phosphorus level on VA Mycorrhizal colonization and growth of cowpea cultivars</title><author><name sortKey="Rajapakse, S" sort="Rajapakse, S" uniqKey="Rajapakse S" first="S." last="Rajapakse">S. Rajapakse</name></author><author><name sortKey="Zuberer, A" sort="Zuberer, A" uniqKey="Zuberer A" first="A." last="Zuberer">A. Zuberer</name></author><author><name sortKey="Miller Jr, C" sort="Miller Jr, C" uniqKey="Miller Jr C" first="C." last="Miller Jr.">C. Miller Jr.</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:E66F2402DC792B342E88D7AFA7A98CACB06AA0DC</idno><date when="1989" year="1989">1989</date><idno type="doi">10.1007/BF02203080</idno><idno type="url">https://api.istex.fr/document/E66F2402DC792B342E88D7AFA7A98CACB06AA0DC/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">001512</idno><idno type="wicri:Area/Istex/Curation">001512</idno><idno type="wicri:Area/Istex/Checkpoint">001426</idno><idno type="wicri:doubleKey">0032-079X:1989:Rajapakse S:influence:of:phosphorus</idno><idno type="wicri:Area/Main/Merge">004241</idno><idno type="wicri:Area/Main/Curation">003E86</idno><idno type="wicri:Area/Main/Exploration">003E86</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Influence of phosphorus level on VA Mycorrhizal colonization and growth of cowpea cultivars</title><author><name sortKey="Rajapakse, S" sort="Rajapakse, S" uniqKey="Rajapakse S" first="S." last="Rajapakse">S. Rajapakse</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Dept. of Horticultural Sciences and Dept. of Soil and Crop Sciences, Texas A&M University, 77843-2133, College Station, TX</wicri:regionArea><placeName><region type="state">Texas</region></placeName></affiliation></author><author><name sortKey="Zuberer, A" sort="Zuberer, A" uniqKey="Zuberer A" first="A." last="Zuberer">A. Zuberer</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Dept. of Horticultural Sciences and Dept. of Soil and Crop Sciences, Texas A&M University, 77843-2133, College Station, TX</wicri:regionArea><placeName><region type="state">Texas</region></placeName></affiliation></author><author><name sortKey="Miller Jr, C" sort="Miller Jr, C" uniqKey="Miller Jr C" first="C." last="Miller Jr.">C. Miller Jr.</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Dept. of Horticultural Sciences and Dept. of Soil and Crop Sciences, Texas A&M University, 77843-2133, College Station, TX</wicri:regionArea><placeName><region type="state">Texas</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Plant and Soil</title><title level="j" type="sub">An International Journal on Plant-Soil Relationships</title><title level="j" type="abbrev">Plant Soil</title><idno type="ISSN">0032-079X</idno><idno type="eISSN">1573-5036</idno><imprint><publisher>Kluwer Academic Publishers</publisher><pubPlace>Dordrecht</pubPlace><date type="published" when="1989-02-01">1989-02-01</date><biblScope unit="volume">114</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="45">45</biblScope><biblScope unit="page" to="52">52</biblScope></imprint><idno type="ISSN">0032-079X</idno></series><idno type="istex">E66F2402DC792B342E88D7AFA7A98CACB06AA0DC</idno><idno type="DOI">10.1007/BF02203080</idno><idno type="ArticleID">BF02203080</idno><idno type="ArticleID">Art6</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0032-079X</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: Vesicular-arbuscular mycorrhizal (VAM) associations often vary according to the abundance of available soil phosphorus (P). Therefore, understanding the response of crop plants to colonization by VAM fungi necessitates the study of the response of colonized and noncolonized plants, from a range of cultivars, to differing levels of P. Cowpea is grown throughout the world, often on impoverished soils in which it can benefit from formation of mycorrhizae. The present study was conducted to determine the response of four cultivars of cowpea (Vigna unguiculata (L.) Walp.), varying in nitrogen fixation capacity, to inoculation withGlomus fasciculatum at four levels of added P in the rooting medium. In a greenhouse experiment, four cowpea cultivars, Mississippi Silver, Brown Crowder, Six Week Browneye and MI 35, were grown with and without the mycorrhizal fungus at four levels of added P, 0, 10, 20 and 30 ppm. Root colonization (%) was negatively correlated with P content of the growth medium and shoot P concentration. Intraspecific variability was shown for shoot dry weight and leaf area in response to inoculation withG. fasciculatum at different P levels. The range of P required in the growth medium which allowed benefit fromG. fasciculatum was identified for individual cultivars using shoot dry weight and leaf area, and collectively across cultivars for other parameters.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country><region><li>Texas</li></region></list><tree><country name="États-Unis"><region name="Texas"><name sortKey="Rajapakse, S" sort="Rajapakse, S" uniqKey="Rajapakse S" first="S." last="Rajapakse">S. Rajapakse</name></region><name sortKey="Miller Jr, C" sort="Miller Jr, C" uniqKey="Miller Jr C" first="C." last="Miller Jr.">C. Miller Jr.</name><name sortKey="Zuberer, A" sort="Zuberer, A" uniqKey="Zuberer A" first="A." last="Zuberer">A. Zuberer</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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