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| 02033nam 2200337za 4500 |
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| 001 | 9.828532 |
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| 003 | CaOODSP |
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| 005 | 20221107145051 |
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| 007 | cr ||||||||||| |
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| 008 | 161202s1932 oncaobd#o f000 0 eng d |
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| 040 | |aCaOODSP|beng |
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| 043 | |an-cn--- |
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| 045 | |ax1x3 |
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| 086 | 1 |aA12-2/160-1932E-PDF |
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| 100 | 1 |aNewton, Margaret. |
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| 245 | 10|aSpecialization and hybridization of wheat stem rust, Puccinia graminis tritici, in Canada |h[electronic resource] / |cby Margaret Newton and Thorvaldur Johnson. |
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| 246 | 1 |iAt head of title: |aStudies in cereal diseases|nVIII |
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| 260 | |aOttawa : |bDivision of Botany, Dominion Experimental Farms : |bDepartment of Agriculture, |c1932. |
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| 300 | |a60 p. : |bill. |
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| 490 | 1 |aBulletin, New series ; |vno. 160 |
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| 500 | |aTitle from cover. |
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| 500 | |aHistorical publication digitized by the Internet Archive in 2013 [on behalf of Agriculture and Agri-Food Canada]. |
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| 504 | |aIncludes bibliographical references. |
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| 520 | 0 |a"Annual rust surveys have been made in Canada for the past twelve years to determine the prevalence of physiologic forms of Puccinia graminis tritici, but the information gathered in this period has never been brought together in published form. ... One of the objects which the writers had in view when this bulletin was undertaken was to give a comprehensive account of the results of the stem-rust surveys carried out during the period 1919 to 1930. It was also thought worth while to discuss in some detail the methods used and the technique involved in the determination of physiologic forms"--Introd., p. [3]. |
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| 692 | 07|2gccst|aCereals |
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| 692 | 07|2gccst|aPlant diseases |
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| 700 | 1 |aJohnson, Thorvaldur. |
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| 710 | 1 |aCanada.|bDepartment of Agriculture. |
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| 710 | 1 |aCanada. |bDivision of Botany. |
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| 830 | #0|aBulletin (Canada. Department of Agriculture)|vno. 160|w(CaOODSP)9.812039 |
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| 856 | 40|qPDF|s5.43 MB|uhttps://publications.gc.ca/collections/collection_2016/aac-aafc/agrhist/A12-2-160-1932-eng.pdf |
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