Full TGIF Record # 200000
Item 1 of 1
DOI:10.1111/j.1365-2494.1978.tb00828.x
Web URL(s):http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1978.tb00828.x/pdf
    Last checked: 03/21/2012
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Publication Type:
i
Refereed
Author(s):Hides, D. H.; Wilkins, P. W.
Author Affiliation:Welsh Plant Breeding Station, Aberystwyth
Title:Selection for resistance to ryegrass mosaic virus and crown rust (Puccinia coronata Corda) in Italian ryegrass populations
Source:Grass and Forage Science. Vol. 33, No. 4, December 1978, p. 253-260.
# of Pages:8
Publishing Information:[Oxford, England, United Kingdom]: Blackwell Publishing Ltd.
Related Web URL:http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1978.tb00828.x/abstract
    Last checked: 03/21/2012
    Notes: Abstract only
Keywords:TIC Keywords: Disease resistance; Inoculation; Lolium multiflorum; Puccinia coronata var. coronata; Ryegrass mosaic virus; Water soluble carbohydrates
Abstract/Contents:"Inoculation in the glasshouse revealed marked differences in resistance to both ryegrass mosaic virus (RMV) and crown rust (Puccinia coronata Corda) among eight unselected populations of Italian ryegrass (Lolium multiflorum Lam.). Two generations of selection for crown rust resistance led to a significant improvement in all eight populations, while one generation of selection for RMV gave a more variable response. Frequency distributions of individual genotype scores suggested that much of the resistance to crown rust was under the control of one or two genes with major effects, while resistance to RMV appeared to be controlled by a large number of genes each having a small effect. In the field, resistance to RMV meeisured after 20 months was strongly correlated with that obtained in the glasshouse. Natural infection by crown rust in the field was too low to reveal any differences between populations, although three populations from the Po Valley region of Northern Italy became heavily infected with Puccinia recondita. Selection for disease resistance significantly reduced the persistency of three populations, but that of four others was unaffected and one showed a significant improvement. Selection reduced water-soluble carbohydrate (WSC) levels in spring slightly but significantly from 27·6 to 25·8% WSC overall. These results emphasize that agronomic performance must be monitored during selection for disease resistance."
Language:English
References:19
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hides, D. H., and P. W. Wilkins. 1978. Selection for resistance to ryegrass mosaic virus and crown rust (Puccinia coronata Corda) in Italian ryegrass populations. Grass Forage Sci. 33(4):p. 253-260.
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DOI: 10.1111/j.1365-2494.1978.tb00828.x
Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1978.tb00828.x/pdf
    Last checked: 03/21/2012
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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