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metan: an R package for multi‐environment trial analysis by Olivoto, Tiago; DalâCol LÃocio, Alessandro is a Environmental Science article available to read on EtoBox.

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## Abstract Multi‐environment trials (MET) are crucial steps in plant breeding programs that aim at increasing crop productivity to ensure global food security. The analysis of MET data requires the combination of several approaches including data manipulation, visualization and modelling. As new methods are proposed, analysing MET data correctly and completely remains a challenge, often intractable with existing tools. Here we describe the metan R package, a collection of functions that implement a workflow‐based approach to (a) check, manipulate and summarize typical MET data; (b) analyse individual environments using both fixed and mixed‐effect models; (c) compute parametric and nonparametric stability statistics; (d) implement biometrical models widely used in MET analysis and (e) plot typical MET data quickly. In this paper, we present a summary of the functions implemented in metan and how they integrate into a workflow to explore and analyse MET data. We guide the user along a gentle learning curve and show how adding only a few commands or options at a time, powerful analyses can be implemented. metan offers a flexible, intuitive and richly documented working environment wi

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Author

Olivoto, Tiago; DalâCol LÃocio, Alessandro

Publisher

Wiley (Blackwell Publishing); John Wiley and Sons Inc.; Wiley; Research Square (ISSN 2041-210X)

Published

2020

Language

EN

Field

Environmental Science (Physical Sciences)