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Preliminary comparisons of barley yellow dwarf scores on CIMMYT nurseries in contrasting environments using nonparametic correlations

By: Raun, W.R | World Perspectives on Barley Yellow Dwarf International Workshop Udine (Italy) 6-11 Jul 1987.
Contributor(s): Burnett, P.A [coaut.] | Fox, P.N [coaut.].
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: 1990ISBN: 968-6127-39.Subject(s): Gramineae | Hordeum | Luteoviruses | Mathematical and statistical methods | Plant diseases | Plant viruses | Viruses AGROVOC | TriticumDDC classification: 91-013970 In: Burnett, P.A. (ed.). World perspectives on barley yellow dwarf. Proceedings. Mexico, DF (Mexico). CIMMYT. 1990. p. 485-48891-013970Summary: Of 58 pair-wise environment combinations with the same genotypes, 17 gave positive, significant Spearman's rank correlations for visual barley yellow dwarf scores. Spearman's method gave significantly higher coefficients than Pearson's product moment method indicating the utility of the nonparametric test. The development of an evaluation system that minimizes differences among scorers and maximizes genetic differences and environmental effects due to viral variation is suggestedCollection: AGRIS Collection
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AGRIS Collection 91-013970 (Browse shelf) 1 Available 91-013970
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Of 58 pair-wise environment combinations with the same genotypes, 17 gave positive, significant Spearman's rank correlations for visual barley yellow dwarf scores. Spearman's method gave significantly higher coefficients than Pearson's product moment method indicating the utility of the nonparametric test. The development of an evaluation system that minimizes differences among scorers and maximizes genetic differences and environmental effects due to viral variation is suggested

English

World Perspectives on Barley Yellow Dwarf International Workshop. Udine (Italy). 6-11 Jul 1987 CIMMYT, Ap. 6-641, 06600 Mexico, D.F. - Mexico|COMOD

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