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| Publication Type:
| Refereed |
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| Author(s): | Bruneau, A. H.;
Parkhurst, A. M.;
Shearman, R. C. |
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| Author Affiliation: | Dept. of Horticulture, University of Nebraska, Lincoln, NE. |
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| Title: | Discriminant Analysis for Kentucky Bluegrass Billbug Resistance Ratings |
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| Source: | Journal of the American Society for Horticultural Science. Vol. 112, No. 6, November 1987, p. 978-980. |
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| Publishing Information: | Westport, Conn.: AVI Publishing Co. |
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| # of Pages: | 3 |
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| Keywords: | TIC Keywords: Analysis; Poa pratensis; Sphenophorus parvulus
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| Abstract/Contents: | "Four categories of billbug (Sphenophorus parvulus Gyllenhal) resistance were identified and contrasted in terms of anatomical, morphological, and physiological characteristics of 12 Kentucky bluegrass (Poa pratensis L.) cultivars. Discriminant analysis was used as a spearatory procedure to determine the relative importance of these plant characteristics to observed billbug resistance and to construct a prediction procedure for potential billbug resistance classes. Variables measured from field-, controlled environment-, and greenhouse-grown plants were analyzed for the most biologically revealing characteristics of potential billbug resistance. Separatory discrimination indicated that cultivars exhibiting moderate and high billbug resistance had tougher tissue than tolerant or susceptible cultivars. Tolerant and highly resistant cultivars differed from those susceptible and moderately resistant by concealing billbug injury. Development of a predictive classification procdure was promising, with percent correct classification ranging from 67% to 94%, depending on number and type of discriminating variables analyzed." |
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| Language: | English |
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| References: | 11 |
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| Note: | Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Bruneau, A. H., A. M. Parkhurst, and R. C. Shearman. 1987. Discriminant Analysis for Kentucky Bluegrass Billbug Resistance Ratings. J. Am. Soc. Hortic. Sci. 112(6):p. 978-980. |
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