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Estimating Potential Germination of Winter Wheat and Winter Barley Seed Using a Tetrazolium Test

W. J. Rennie and Val Gorey
Irish Journal of Agricultural Research
Vol. 27, No. 2/3 (1988), pp. 179-186
Stable URL: http://www.jstor.org/stable/25556220
Page Count: 8
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Estimating Potential Germination of Winter Wheat and Winter Barley Seed Using a Tetrazolium Test
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Abstract

Twenty-eight winter barley and 25 winter wheat seed samples, drawn from lots harvested in Ireland in 1986, were assessed in tetrazolium and full germination tests. Tetrazolium and germination test results correlated well for winter barley although the tetrazolium test tended to overestimate germination when seed was affected by dryer damage. The relationship between tetrazolium and germination tests on untreated winter wheat was affected by seed-borne Fusarium nivale and Septoria nodorum. Tetrazolium and germination test results did not correlate well when untreated seed was tested, however, when organomercurial compounds such as "Germisan" was added to the test substrate and when "Panogen M" treated wheat seed was tested there was a good correlation between the tests. The use of a tetrazolium test procedure for winter cereal seed is discussed.

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