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Nearest Neighbour Adjustment and Linear Variance Models in Plant Breeding Trials

Piepho, H.P.; Richter, Christel; Williams, Emlyn

Description

This paper reviews methods for nearest neighbour analysis that adjust for local trend in one dimension. Such methods are commonly used in plant breeding and variety testing. The focus is on simple differencing methods, including first differences and the Papadakis method. We discuss mixed model representations of these methods on the scale of the observed data. Modelling observed data has a number of practical advantages compared to differencing, for example the facility to conveniently compute...[Show more]

dc.contributor.authorPiepho, H.P.
dc.contributor.authorRichter, Christel
dc.contributor.authorWilliams, Emlyn
dc.date.accessioned2016-02-24T22:41:59Z
dc.identifier.issn0323-3847
dc.identifier.urihttp://hdl.handle.net/1885/98884
dc.description.abstractThis paper reviews methods for nearest neighbour analysis that adjust for local trend in one dimension. Such methods are commonly used in plant breeding and variety testing. The focus is on simple differencing methods, including first differences and the Papadakis method. We discuss mixed model representations of these methods on the scale of the observed data. Modelling observed data has a number of practical advantages compared to differencing, for example the facility to conveniently compute adjusted cultivar means. Most models considered involve a linear variance-covariance structure and can be represented as state-space models. The reviewed methods and models are exemplified using three datasets.
dc.publisherWiley-VCH Verlag GMBH
dc.sourceBiometrical Journal
dc.subjectKeywords: biological model; genetics; plant; review; statistical analysis; statistical model; Data Interpretation, Statistical; Models, Genetic; Models, Statistical; Plants Field trials; Geostatistics; Linear variance; Mixed model; Spatial model; Statespace model
dc.titleNearest Neighbour Adjustment and Linear Variance Models in Plant Breeding Trials
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume50
dc.date.issued2008
local.identifier.absfor060799 - Plant Biology not elsewhere classified
local.identifier.ariespublicationu4326120xPUB582
local.type.statusPublished Version
local.contributor.affiliationPiepho, H.P., University of Hohenheim
local.contributor.affiliationRichter, Christel, Humboldt-Universitat zu Berlin
local.contributor.affiliationWilliams, Emlyn, Administrative Division, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.issue2
local.bibliographicCitation.startpage164
local.bibliographicCitation.lastpage189
local.identifier.doi10.1002/bimj.200710414
dc.date.updated2016-02-24T10:56:39Z
local.identifier.scopusID2-s2.0-43249099560
local.identifier.thomsonID000255262700002
CollectionsANU Research Publications

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