Full TGIF Record # 169597
Item 1 of 1
DOI:10.1111/j.1365-2494.2010.00759.x
Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.2010.00759.x/pdf
    Last checked: 09/24/2010
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
Publication Type:
i
Refereed
Author(s):Mcgrath, S.; Hodkinson, T. R.; Charles, T. M.; Zen, D. G.; Barth, S.
Author Affiliation:McGrath, Charles, Zen and Barth: Teagasc Crops Research Centre, Oak Park, Carlow, Ireland; Hodkinson and McGrath: Department of Botany, School of Natural Sciences, Trinity College Dublin, University of Dublin, Dublin, Ireland
Title:Variation in inflorescence characters and inflorescence development in ecotypes and cultivars of Lolium perenne L.
Source:Grass and Forage Science. Vol. 65, No. 4, December 2010, p. 398-409.
# of Pages:12
Publishing Information:Oxford, Blackwell Scientific Publications
Related Web URL:http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.2010.00759.x/abstract
    Last checked: 11/24/2010
    Notes: Abstract only
Keywords:TIC Keywords: Cultivar variation; Ecotypic variation; Genetic variability; Glumes; Inflorescences; Lolium perenne; Morphological evaluation; Seed yield
Abstract/Contents:"A sufficient database of seed yield components is the prerequisite to predict which component contributes most to the seed yield complex and to dissect the biology of the complex quantitative trait seed yield. Phenotypic variation of eleven vegetative and reproductive traits was characterized for 2481 individuals from fifty Lolium perenne L. (perennial ryegrass) ecotypes and cultivars. Considerable levels of among- and within-population variation were found across several inflorescence characters. Principal component and canonical variate analysis separated ecotypes from cultivars, and cultivars generally had later dates of ear emergence, better spring and summer growth, longer rachis length and more spikelets per spike than ecotypes. Strong positive relationships were seen between inflorescence characters using both correlation and regression analyses. The strong relationship between rachis length and other inflorescence characters suggested that rachis length could be used as a performance predictor for several other characters of the spike. This phenotypic study has helped to determine basic patterns of morphological diversity and correlations between characters. It is discussed in which way further developmental genetic studies can be directed."
Language:English
References:43
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
McGrath, S., T. R. Hodkinson, T. M. Charles, D. G. Zen, and S. Barth. 2010. Variation in inflorescence characters and inflorescence development in ecotypes and cultivars of Lolium perenne L.. Grass Forage Sci. 65(4):p. 398-409.
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DOI: 10.1111/j.1365-2494.2010.00759.x
Web URL(s):

http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.2010.00759.x/pdf
    Last checked: 09/24/2010
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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