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Applications of crop competitive ability in winter oats (Avena sativa L.)

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Fradgley, Nick; Creissen, Henry; Howlett, Sally; Pearce, Helen and Girling, Robbie (2014) Applications of crop competitive ability in winter oats (Avena sativa L.). Poster at: Diversity strategies for organic and low input agricultures and their food systems, Nante, France, 7th - 9th July 2014.

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Summary

Crop competition is a key component of an integrated approach to weed management. Variation in competitive ability and competitive traits have been identified in many other crop species, however little work has been done on oats.
Trials were carried out over four years at one organic site with five husked and three naked oat varieties. Mid-season Leaf Area Index (LAI) and tillering ability were identified as weed suppressive traits using path analysis. Differences in weed tolerance were found among varieties. Trade-offs may exist between competitive traits and yield potential which could be optimised by limiting competitive traits later in the season.
Selection of competitive traits with high heritability, whilst minimising yield penalties, could be applied in breeding programmes to develop varieties with greater weed competitive ability.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:Oats, weed suppression, weed tolerance, yield trade-offs.
Agrovoc keywords:
LanguageValueURI
EnglishUNSPECIFIEDUNSPECIFIED
Subjects: Crop husbandry > Breeding, genetics and propagation
Crop husbandry > Weed management
Research affiliation: UK > Univ. Aberystwyth > Institute for Biological, Environmental and Rural Sciences (IBERS)
UK > Organic Research Centre (ORC) - Elm Farm
Deposited By: Fradgley, Mr Nick
ID Code:27170
Deposited On:20 Sep 2014 19:21
Last Modified:20 Sep 2014 19:21
Document Language:English
Status:Published
Refereed:Not peer-reviewed

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