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	Provedor de dados Organic Eprints (1) Autor Jauhiainen, Lauri (1) Kangas, Arjo (1) Öfversten, Jukka (1) Palavra-chave Research methodology and philosophy (1) Tipo do documento Journal paper (1) Ano 2008 (1) País Germany (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Recommendable block sizes: a case study on Finnish official variety trials of barley cultivars Organic Eprints Jauhiainen, Lauri; Öfversten, Jukka; Kangas, Arjo. Well-established results in the current statistical literature imply that plant breeders should use incomplete block designs wherever spatial variability exists and the number of treatments is large. But the theoretical position does not indicate the recommendable number of cultivars in an incomplete block. In this study we used data from 28 official variety trials conducted in Finland during the period 2001-2005 to study theffect of block size on the efficiency of testing pairwise yield differences of barley cultivars and cultivar rankings. In previous trials some 6-7 cultivars have usually been included in one block. Our results imply that the efficiency of testing procedures could be improved by using a block size as small as 4-5. The results further... Tipo: Journal paper Palavras-chave: Research methodology and philosophy. Ano: 2008 URL: http://orgprints.org/16888/1/jauhiainen.pdf Registros recuperados: 1 Primeira ... 1 ... Última

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