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nin89 – Advanced breeding trial

Description

nin89 is an advanced Nebraska Intrastate Nursery (NIN) breeding trial conducted at Alliance in 1988/89.

Usage

nin89

To load the file into ASReml-R and view the contents use the commands:

library(asreml)
data(package="asreml")
data("nin89")
View(nin89)
Format
A data frame with 11 colums and 242 rows:
Variety A factor with 56 levels
Id A factor with 56 integral levels
pid A numeric variate containing plot numbers
raw Plot weights
Rep A factor with 4 levels
nloc Trial location (4)
yield Grain yield in t/ha
lat Spatial coordinate
long Spatial coordinate
Row A factor with 22 levels
Column A factor with 11 levels
Details

Four replicates of 19 released cultivars, 35 experimental wheat lines and 2 additional triticale lines were laid out in a 22 row by 11 column rectangular array of plots; the varieties were allocated to the plots using a randomised complete block (RCB) design.

References

Stroup WW, Baenziger PS and Mulitze DK (1994). “Removing Spatial Variation from Wheat Yield Trials: A Comparison of Methods.” Crop Science, 86, pp. 62-66.

Updated on January 24, 2019

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