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  <titleInfo>
    <title>Estudios que se estan realizando en México para obtener mayor resistencia a las diferentes razas de chahuixtle que atacan a la especie Triticum vulgare, mediante cruzamientos inter-específicos = studies that are being conducted in Mexico to obtain</title>
  </titleInfo>
  <name type="personal">
    <namePart>Gutiérrez Cruz, Pedro</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="corporate">
    <namePart>Instituto de Investigaciones Agrícolas (México)</namePart>
  </name>
  <typeOfResource>text</typeOfResource>
  <originInfo>
    <place>
      <placeTerm type="code" authority="marccountry">xx</placeTerm>
    </place>
    <place>
      <placeTerm type="text">México</placeTerm>
    </place>
    <publisher> IIA</publisher>
    <dateIssued encoding="marc">1956</dateIssued>
    <issuance>monographic</issuance>
  </originInfo>
  <language>
    <languageTerm authority="iso639-2b" type="code">und</languageTerm>
  </language>
  <physicalDescription>
    <form authority="marcform">print</form>
    <extent>7 p.</extent>
  </physicalDescription>
  <note type="statement of responsibility"> por Pedro Gutiérrez Cruz</note>
  <note>Ponencia presentada en la: Conferencia Internacional sobre royas (Chahuixtle) del trigo (3:1956:México)</note>
  <subject>
    <topic>Roya del trigo</topic>
    <topic> congresos</topic>
  </subject>
  <subject>
    <topic>Trigo</topic>
    <topic> mejoramiento</topic>
  </subject>
  <subject>
    <topic>Trigo</topic>
    <topic> variedades resistentes a enfermedades</topic>
  </subject>
  <subject>
    <topic>Triticum</topic>
  </subject>
  <identifier type="lccn">205616</identifier>
  <recordInfo>
    <recordContentSource authority="marcorg"/>
    <recordCreationDate encoding="marc">220125</recordCreationDate>
    <recordIdentifier source="CHAP">Para_6820</recordIdentifier>
  </recordInfo>
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