Sources of resistance to septoria speckled leaf blotch caused by Septoria passerinii in barley

H. Toubia-Rahme; B. J. Steffenson

doi:10.1080/07060660409507153

Sources of resistance to septoria speckled leaf blotch caused by Septoria passerinii in barley

H. Toubia-Rahme, B. J. Steffenson

Plant Pathology

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

Septoria speckled leaf blotch (SSLB), incited by Septoria passerinii, has reemerged as one of the most serious foliar diseases of barley (Hordeum vulgare) in the Upper Midwest region of the United States over the last decade. The most cost-effective and environmentally safe method of preventing SSLB epidemics is through the use of resistant cultivars. Thus, the objective of this study was to investigate sources of resistance to S. passerinii in barley and to determine the reliability of greenhouse seedling tests for predicting the adult-plant reaction in the field. From a preliminary greenhouse screening of over 250 barley accessions, 78 lines were selected and subsequently evaluated at the seedling (greenhouse) and adult-plant (field) stages for reaction to S. passerinii. All of the major malting (H. vulgare ‘Drummond’, ‘Excel’, ‘Foster’, ‘Lacey’, ‘Legacy’, ‘Morex’, ‘Stander’, ‘Conlon’, and ‘Robust’) and feed (H. vulgare ‘Bowman’, ‘Logan’, and ‘Royal’) cultivars grown in or recommended for the Upper Midwest region of the United States were highly susceptible. Highly significant correlations were detected between the infection response of seedlings in the greenhouse and adult plants in the field. Twenty-nine accessions exhibited resistance at both the seedling and adult-plant stages. The resistant accessions identified in this study were from geographically diverse regions and will be valuable in developing barley cultivars with diverse and broad-based resistance to SSLB.

Original language	English (US)
Pages (from-to)	358-364
Number of pages	7
Journal	Canadian Journal of Plant Pathology
Volume	26
Issue number	3
DOIs	https://doi.org/10.1080/07060660409507153
State	Published - Sep 2004

Bibliographical note

Funding Information:
This research was supported in part by the American Malting Barley Association and North Dakota Barley Council. The authors thank H. Bockelman, A. Choo, J. Franckowiak, P. Hayes, R. Horsley, and D. Rasmusson for providing the barley germplasm used in this study and J. Krupinsky for providing several S. passerinii isolates.

Keywords

Hordeum vulgare
Resistance to disease
Septoria passerinii
Septoria speckled leaf blotch

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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title = "Sources of resistance to septoria speckled leaf blotch caused by Septoria passerinii in barley",

abstract = "Septoria speckled leaf blotch (SSLB), incited by Septoria passerinii, has reemerged as one of the most serious foliar diseases of barley (Hordeum vulgare) in the Upper Midwest region of the United States over the last decade. The most cost-effective and environmentally safe method of preventing SSLB epidemics is through the use of resistant cultivars. Thus, the objective of this study was to investigate sources of resistance to S. passerinii in barley and to determine the reliability of greenhouse seedling tests for predicting the adult-plant reaction in the field. From a preliminary greenhouse screening of over 250 barley accessions, 78 lines were selected and subsequently evaluated at the seedling (greenhouse) and adult-plant (field) stages for reaction to S. passerinii. All of the major malting (H. vulgare {\textquoteleft}Drummond{\textquoteright}, {\textquoteleft}Excel{\textquoteright}, {\textquoteleft}Foster{\textquoteright}, {\textquoteleft}Lacey{\textquoteright}, {\textquoteleft}Legacy{\textquoteright}, {\textquoteleft}Morex{\textquoteright}, {\textquoteleft}Stander{\textquoteright}, {\textquoteleft}Conlon{\textquoteright}, and {\textquoteleft}Robust{\textquoteright}) and feed (H. vulgare {\textquoteleft}Bowman{\textquoteright}, {\textquoteleft}Logan{\textquoteright}, and {\textquoteleft}Royal{\textquoteright}) cultivars grown in or recommended for the Upper Midwest region of the United States were highly susceptible. Highly significant correlations were detected between the infection response of seedlings in the greenhouse and adult plants in the field. Twenty-nine accessions exhibited resistance at both the seedling and adult-plant stages. The resistant accessions identified in this study were from geographically diverse regions and will be valuable in developing barley cultivars with diverse and broad-based resistance to SSLB.",

keywords = "Hordeum vulgare, Resistance to disease, Septoria passerinii, Septoria speckled leaf blotch",

author = "H. Toubia-Rahme and Steffenson, {B. J.}",

note = "Funding Information: This research was supported in part by the American Malting Barley Association and North Dakota Barley Council. The authors thank H. Bockelman, A. Choo, J. Franckowiak, P. Hayes, R. Horsley, and D. Rasmusson for providing the barley germplasm used in this study and J. Krupinsky for providing several S. passerinii isolates.",

year = "2004",

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N2 - Septoria speckled leaf blotch (SSLB), incited by Septoria passerinii, has reemerged as one of the most serious foliar diseases of barley (Hordeum vulgare) in the Upper Midwest region of the United States over the last decade. The most cost-effective and environmentally safe method of preventing SSLB epidemics is through the use of resistant cultivars. Thus, the objective of this study was to investigate sources of resistance to S. passerinii in barley and to determine the reliability of greenhouse seedling tests for predicting the adult-plant reaction in the field. From a preliminary greenhouse screening of over 250 barley accessions, 78 lines were selected and subsequently evaluated at the seedling (greenhouse) and adult-plant (field) stages for reaction to S. passerinii. All of the major malting (H. vulgare ‘Drummond’, ‘Excel’, ‘Foster’, ‘Lacey’, ‘Legacy’, ‘Morex’, ‘Stander’, ‘Conlon’, and ‘Robust’) and feed (H. vulgare ‘Bowman’, ‘Logan’, and ‘Royal’) cultivars grown in or recommended for the Upper Midwest region of the United States were highly susceptible. Highly significant correlations were detected between the infection response of seedlings in the greenhouse and adult plants in the field. Twenty-nine accessions exhibited resistance at both the seedling and adult-plant stages. The resistant accessions identified in this study were from geographically diverse regions and will be valuable in developing barley cultivars with diverse and broad-based resistance to SSLB.

AB - Septoria speckled leaf blotch (SSLB), incited by Septoria passerinii, has reemerged as one of the most serious foliar diseases of barley (Hordeum vulgare) in the Upper Midwest region of the United States over the last decade. The most cost-effective and environmentally safe method of preventing SSLB epidemics is through the use of resistant cultivars. Thus, the objective of this study was to investigate sources of resistance to S. passerinii in barley and to determine the reliability of greenhouse seedling tests for predicting the adult-plant reaction in the field. From a preliminary greenhouse screening of over 250 barley accessions, 78 lines were selected and subsequently evaluated at the seedling (greenhouse) and adult-plant (field) stages for reaction to S. passerinii. All of the major malting (H. vulgare ‘Drummond’, ‘Excel’, ‘Foster’, ‘Lacey’, ‘Legacy’, ‘Morex’, ‘Stander’, ‘Conlon’, and ‘Robust’) and feed (H. vulgare ‘Bowman’, ‘Logan’, and ‘Royal’) cultivars grown in or recommended for the Upper Midwest region of the United States were highly susceptible. Highly significant correlations were detected between the infection response of seedlings in the greenhouse and adult plants in the field. Twenty-nine accessions exhibited resistance at both the seedling and adult-plant stages. The resistant accessions identified in this study were from geographically diverse regions and will be valuable in developing barley cultivars with diverse and broad-based resistance to SSLB.

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ER -

Sources of resistance to septoria speckled leaf blotch caused by Septoria passerinii in barley

Abstract

Bibliographical note

Keywords

UN SDGs

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