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<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:contributor>M. M. Caldwell</dc:contributor>
  <dc:contributor>David A. Pyke</dc:contributor>
  <dc:creator>Elisabeth Huber-Sannwald</dc:creator>
  <dc:date>1997</dc:date>
  <dc:description>&lt;p&gt;&lt;span&gt;A previous study showed that clonal morphology of the rhizomatous grass&amp;nbsp;&lt;/span&gt;&lt;i&gt;Elymus lanceolatus&lt;/i&gt;&lt;span&gt;&amp;nbsp;ssp.&amp;nbsp;&lt;/span&gt;&lt;i&gt;lanceolatus&lt;/i&gt;&lt;span&gt;&amp;nbsp;(Scibner &amp;amp; J.G. Smith Gould) was influenced more by neighbouring root systems than by the local distribution of nutrients. In this study we determine whether individual rhizomes or roots of&amp;nbsp;&lt;/span&gt;&lt;i&gt;E&lt;/i&gt;&lt;span&gt;.&amp;nbsp;&lt;/span&gt;&lt;i&gt;lanceolatus&lt;/i&gt;&lt;span&gt;&amp;nbsp;perceive neighbouring root systems and how this is manifested in morphological responses of&amp;nbsp;&lt;/span&gt;&lt;i&gt;E&lt;/i&gt;&lt;span&gt;.&amp;nbsp;&lt;/span&gt;&lt;i&gt;lanceolatus&lt;/i&gt;&lt;span&gt;&amp;nbsp;clones.&amp;nbsp;&lt;/span&gt;&lt;i&gt;Elymus lanceolatus&lt;/i&gt;&lt;span&gt;&amp;nbsp;was grown in the same bin with&amp;nbsp;&lt;/span&gt;&lt;i&gt;Pseudoroegneria spicata&lt;/i&gt;&lt;span&gt;&amp;nbsp;(Pursh) A. Love or&amp;nbsp;&lt;/span&gt;&lt;i&gt;Agropyron desertorum&lt;/i&gt;&lt;span&gt;&amp;nbsp;(Fisch. ex Link) Schult. plants.&amp;nbsp;&lt;/span&gt;&lt;i&gt;Elymus lanceolatus&lt;/i&gt;&lt;span&gt;&amp;nbsp;was separated from its neighbours by different barriers. The barriers allowed either only&amp;nbsp;&lt;/span&gt;&lt;i&gt;E&lt;/i&gt;&lt;span&gt;.&amp;nbsp;&lt;/span&gt;&lt;i&gt;lanceolatus&lt;/i&gt;&lt;span&gt;&amp;nbsp;roots; only a single&amp;nbsp;&lt;/span&gt;&lt;i&gt;E&lt;/i&gt;&lt;span&gt;.&amp;nbsp;&lt;/span&gt;&lt;i&gt;lanceolatus&lt;/i&gt;&lt;span&gt;&amp;nbsp;primary rhizome; or both roots and rhizomes to contact the neighbour root system. When only a single&amp;nbsp;&lt;/span&gt;&lt;i&gt;E&lt;/i&gt;&lt;span&gt;.&amp;nbsp;&lt;/span&gt;&lt;i&gt;lanceolatus&lt;/i&gt;&lt;span&gt;&amp;nbsp;primary rhizome with potentially developing branching rhizomes made contact with the neighbour, the clonal structure of&amp;nbsp;&lt;/span&gt;&lt;i&gt;E&lt;/i&gt;&lt;span&gt;.&amp;nbsp;&lt;/span&gt;&lt;i&gt;lanceolatus&lt;/i&gt;&lt;span&gt;&amp;nbsp;was modified more with&amp;nbsp;&lt;/span&gt;&lt;i&gt;P&lt;/i&gt;&lt;span&gt;.&amp;nbsp;&lt;/span&gt;&lt;i&gt;spicata&lt;/i&gt;&lt;span&gt;&amp;nbsp;as the neighbour than with&amp;nbsp;&lt;/span&gt;&lt;i&gt;A&lt;/i&gt;&lt;span&gt;.&amp;nbsp;&lt;/span&gt;&lt;i&gt;desertorum&lt;/i&gt;&lt;span&gt;. With root contact of&amp;nbsp;&lt;/span&gt;&lt;i&gt;E&lt;/i&gt;&lt;span&gt;.&amp;nbsp;&lt;/span&gt;&lt;i&gt;lanceolatus&lt;/i&gt;&lt;span&gt;&amp;nbsp;alone there was a similar effect with the neighbouring plants, but there was a more marked inhibitory effect on&amp;nbsp;&lt;/span&gt;&lt;i&gt;E&lt;/i&gt;&lt;span&gt;.&amp;nbsp;&lt;/span&gt;&lt;i&gt;lanceolatus&lt;/i&gt;&lt;span&gt;&amp;nbsp;clonal growth with&amp;nbsp;&lt;/span&gt;&lt;i&gt;P&lt;/i&gt;&lt;span&gt;.&amp;nbsp;&lt;/span&gt;&lt;i&gt;spicata&lt;/i&gt;&lt;span&gt;&amp;nbsp;than with&amp;nbsp;&lt;/span&gt;&lt;i&gt;A&lt;/i&gt;&lt;span&gt;.&amp;nbsp;&lt;/span&gt;&lt;i&gt;desertorum&lt;/i&gt;&lt;span&gt;, compared with the treatment with only a single rhizome in contact with the neighbour. Root resource competition in the unconstrained treatment (roots and rhizomes) between neighbouring plant and&amp;nbsp;&lt;/span&gt;&lt;i&gt;E&lt;/i&gt;&lt;span&gt;.&amp;nbsp;&lt;/span&gt;&lt;i&gt;lanceolatus&lt;/i&gt;&lt;span&gt;&amp;nbsp;was more apparent with&amp;nbsp;&lt;/span&gt;&lt;i&gt;A&lt;/i&gt;&lt;span&gt;.&amp;nbsp;&lt;/span&gt;&lt;i&gt;desertorum&lt;/i&gt;&lt;span&gt;&amp;nbsp;than with&amp;nbsp;&lt;/span&gt;&lt;i&gt;P&lt;/i&gt;&lt;span&gt;.&amp;nbsp;&lt;/span&gt;&lt;i&gt;spicata&lt;/i&gt;&lt;span&gt;. This study is one of the first to document that rhizome and root contact of a clonal plant with its neighbours may induce different clonal responses depending on the species of neighbour.&amp;nbsp;&lt;/span&gt;&lt;i&gt;Key words&lt;/i&gt;&lt;span&gt;:&amp;nbsp;&lt;/span&gt;&lt;i&gt;Agropyron desertorum&lt;/i&gt;&lt;span&gt;, clonal morphology,&amp;nbsp;&lt;/span&gt;&lt;i&gt;Elymus lanceolatus&lt;/i&gt;&lt;span&gt;&amp;nbsp;ssp.&amp;nbsp;&lt;/span&gt;&lt;i&gt;lanceolatus&lt;/i&gt;&lt;span&gt;, plant interference, plant contact,&amp;nbsp;&lt;/span&gt;&lt;i&gt;Pseudoroegneria spicata&lt;/i&gt;&lt;span&gt;, rhizome structure, root systems.&lt;/span&gt;&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1139/b97-926</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>Canadian Science Publishing</dc:publisher>
  <dc:title>Perception of neighboring plants by rhizomes and roots: Morphological manifestations of a clonal plant</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>