Mixed model with spatial variance–covariance structure for accommodating of local stationary trend and its influence on multi-environmental crop variety trial assessment

Mixed model with spatial variance–covariance structure for accommodating of local stationary trend and its influence on multi-environmental crop variety trial assessment

The most common procedure for analyzing multi-environmental trials is based on the assumption that the residual error variance is homogenous across all locations considered. However, this may often be unrealistic, and therefore limit the accuracy of variety evaluation or the reliability of variety r...

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Bibliographic Details
Main Authors: Asnake Worku Negash, Henry Mwambi, Temesgen Zewotir, Girma Aweke
Format: Article
Language:English
Published: Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria 2014-02-01
Series:Spanish Journal of Agricultural Research
Subjects:
multi-environmental trials
chi-squared test
spatial variance–covariance
consistency ratio test
wheat
barley
Online Access:http://revistas.inia.es/index.php/sjar/article/view/4926

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