Data/hora: 20/05/2024 04:56:03

Provedor de dados: 	21	
País: 	Germany	
Título: 	A weed suppressive index for spring barley (Hordeum vulgare L.) varieties	
Autores: 	Hansen, Preben Klarskov; Willas, Jakob; Kristensen, Kristian.	
Data: 	2008	
Ano: 	2008	
Palavras-chave: 	Crop combinations and interactions Weed management Breeding; Genetics and propagation.	
Resumo: 	A screening programme for crop variety competitiveness would ideally be based on only a few, non-destructive measurements of key growth traits. In this study we measured the weed suppressive ability of 79 varieties of spring barley in two ways: 1) directly, by weed coverage assessments under weedy conditions at three Danish locations in 2002-2004, and 2) indirectly, by non-destructive measurements of varietal growth traits under weed-free conditions in 17 other experiments in Denmark in 2001-2003. Based on just four varietal growth traits (reflectance, leaf area index, leaf angle and culm length), we successfully developed a method for indexing the weed suppressive ability of spring barley varieties. The suppressive index ranged from 12% in ‘Lux’ and 55% in ‘Modena’ in proportion to the 90% quantile coverage of all varieties. The index was validated against independent data from two locations in 2005 with 14 and 24 varieties and found valuable for future use in regular screening programmes.	
Tipo: 	Journal paper	
Idioma: 	Inglês	
Identificador: 	http://orgprints.org/11294/2/11294.pdf

Hansen, Preben Klarskov; Willas, Jakob and Kristensen, Kristian (2008) A weed suppressive index for spring barley (Hordeum vulgare L.) varieties. Weed Research Oxford, 48, pp. 225-236.	
Editor: 	Blackwell Publishing	
Relação: 	http://orgprints.org/11294/	
Formato: 	application/pdf