Multivariate analysis of stripe rust assessment and reactions of barley in multi-location nurseries
A total of 1357 entries, mainly consisting of hulled two-row, hulled six-row and hulless barley, were evaluated in stripe rust nurseries at Toluca, Mexico during 2007, Quito, Ecuador during 2007 and 2008, and Pullman and Mt. Vernon, USA [Pacific Northwest (PNW)] during 2007 2009. Disease screening data for barley stripe rust resistance at multiple locations and seasons were analyzed using factor analysis (FA), principal component analysis (PCA) and analysis of variance (ANOVA). Factor analysis led to the removal of a number of disease assessment variables that had inadequate disease levels or an unsuitable rating scale. The PCA scores revealed that the two- row types of barley were generally more resistant than the six-row and hulless types. ANOVA indicated that the effect of seasonal influence on screening was small, while stripe rust susceptible and resistant barley types were differentiated significantly on mean values averaged on infection type (IT) and percentage diseased leaf area (disease severity, DS) during the 3-yr tests in multiple screening nurseries. The significant correlations in disease assessments between IT and DS suggest that either assessment can be used to replace the other without a significant loss of information regarding barley stripe rust reactions. The first principal component is a useful criterion for assessing stripe rust reactions in barley lines.
Main Authors: | , , , , , , , , , , |
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Format: | Journal articles biblioteca |
Language: | English |
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2013
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Subjects: | CEBADA, HORDEUM, RAYA DE ÓXIDO DE CEBADA, PUCCINIA STRIIFORMIS, HONGOS, FITOPATOLOGÍA, ENFERMEDADES DE LAS PLANTAS, VIVEROS, |
Online Access: | http://repositorio.iniap.gob.ec/handle/41000/4827 |
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dig-iniap-41000-48272023-11-03T04:42:05Z Multivariate analysis of stripe rust assessment and reactions of barley in multi-location nurseries Canadian Journal of Plant Science 93(2):209-219 Xi, K. Chen, Xianming Capettini, Flavio Falconí-Castillo, Esteban Yang, R.C. Helm, J.H Holtz, M. D. Juskiw, P. Kumar, K. Nyachiro, J. Turkington, T.K CEBADA HORDEUM RAYA DE ÓXIDO DE CEBADA PUCCINIA STRIIFORMIS HONGOS FITOPATOLOGÍA ENFERMEDADES DE LAS PLANTAS VIVEROS A total of 1357 entries, mainly consisting of hulled two-row, hulled six-row and hulless barley, were evaluated in stripe rust nurseries at Toluca, Mexico during 2007, Quito, Ecuador during 2007 and 2008, and Pullman and Mt. Vernon, USA [Pacific Northwest (PNW)] during 2007 2009. Disease screening data for barley stripe rust resistance at multiple locations and seasons were analyzed using factor analysis (FA), principal component analysis (PCA) and analysis of variance (ANOVA). Factor analysis led to the removal of a number of disease assessment variables that had inadequate disease levels or an unsuitable rating scale. The PCA scores revealed that the two- row types of barley were generally more resistant than the six-row and hulless types. ANOVA indicated that the effect of seasonal influence on screening was small, while stripe rust susceptible and resistant barley types were differentiated significantly on mean values averaged on infection type (IT) and percentage diseased leaf area (disease severity, DS) during the 3-yr tests in multiple screening nurseries. The significant correlations in disease assessments between IT and DS suggest that either assessment can be used to replace the other without a significant loss of information regarding barley stripe rust reactions. The first principal component is a useful criterion for assessing stripe rust reactions in barley lines. 2018-02-20T20:11:31Z 2018-02-20T20:11:31Z 2013 Revista Artículo *EC-INIAP-BEESC-MGC. Quito (Canadian Journal of Plant Science 93(2):209-219) http://repositorio.iniap.gob.ec/handle/41000/4827 en p. 209-219 application/pdf E. E. Santa Catalina |
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CEBADA HORDEUM RAYA DE ÓXIDO DE CEBADA PUCCINIA STRIIFORMIS HONGOS FITOPATOLOGÍA ENFERMEDADES DE LAS PLANTAS VIVEROS CEBADA HORDEUM RAYA DE ÓXIDO DE CEBADA PUCCINIA STRIIFORMIS HONGOS FITOPATOLOGÍA ENFERMEDADES DE LAS PLANTAS VIVEROS |
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CEBADA HORDEUM RAYA DE ÓXIDO DE CEBADA PUCCINIA STRIIFORMIS HONGOS FITOPATOLOGÍA ENFERMEDADES DE LAS PLANTAS VIVEROS CEBADA HORDEUM RAYA DE ÓXIDO DE CEBADA PUCCINIA STRIIFORMIS HONGOS FITOPATOLOGÍA ENFERMEDADES DE LAS PLANTAS VIVEROS Xi, K. Chen, Xianming Capettini, Flavio Falconí-Castillo, Esteban Yang, R.C. Helm, J.H Holtz, M. D. Juskiw, P. Kumar, K. Nyachiro, J. Turkington, T.K Multivariate analysis of stripe rust assessment and reactions of barley in multi-location nurseries |
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A total of 1357 entries, mainly consisting of hulled two-row, hulled six-row and hulless barley, were evaluated in stripe rust nurseries at Toluca, Mexico during 2007, Quito, Ecuador during 2007 and 2008, and Pullman and Mt. Vernon, USA [Pacific Northwest (PNW)] during 2007 2009. Disease screening data for barley stripe rust resistance at multiple locations and seasons were analyzed using factor analysis (FA), principal
component analysis (PCA) and analysis of variance (ANOVA). Factor analysis led to the removal of a number of disease assessment variables that had inadequate disease levels or an unsuitable rating scale. The PCA scores revealed that the two-
row types of barley were generally more resistant than the six-row and hulless types. ANOVA indicated that the effect of seasonal influence on screening was small, while stripe rust susceptible and resistant barley types were differentiated significantly on mean values averaged on infection type (IT) and percentage diseased leaf area (disease severity, DS) during the 3-yr tests in multiple screening nurseries. The significant correlations in disease assessments between IT and DS suggest that either assessment can be used to replace the other without a significant loss of information regarding barley stripe rust reactions. The first principal component is a useful criterion for assessing stripe rust reactions in barley lines. |
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CEBADA HORDEUM RAYA DE ÓXIDO DE CEBADA PUCCINIA STRIIFORMIS HONGOS FITOPATOLOGÍA ENFERMEDADES DE LAS PLANTAS VIVEROS |
author |
Xi, K. Chen, Xianming Capettini, Flavio Falconí-Castillo, Esteban Yang, R.C. Helm, J.H Holtz, M. D. Juskiw, P. Kumar, K. Nyachiro, J. Turkington, T.K |
author_facet |
Xi, K. Chen, Xianming Capettini, Flavio Falconí-Castillo, Esteban Yang, R.C. Helm, J.H Holtz, M. D. Juskiw, P. Kumar, K. Nyachiro, J. Turkington, T.K |
author_sort |
Xi, K. |
title |
Multivariate analysis of stripe rust assessment and reactions of barley in multi-location nurseries |
title_short |
Multivariate analysis of stripe rust assessment and reactions of barley in multi-location nurseries |
title_full |
Multivariate analysis of stripe rust assessment and reactions of barley in multi-location nurseries |
title_fullStr |
Multivariate analysis of stripe rust assessment and reactions of barley in multi-location nurseries |
title_full_unstemmed |
Multivariate analysis of stripe rust assessment and reactions of barley in multi-location nurseries |
title_sort |
multivariate analysis of stripe rust assessment and reactions of barley in multi-location nurseries |
publishDate |
2013 |
url |
http://repositorio.iniap.gob.ec/handle/41000/4827 |
work_keys_str_mv |
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1781881079156703232 |