The analysis of the NSW wheat variety database .1. Modelling trial error variance

被引:38
作者
Cullis, BR
Thomson, FM
Fisher, JA
Gilmour, AR
Thompson, R
机构
[1] AFRC,ROSLIN INST,EDINBURGH EH25 9PS,MIDLOTHIAN,SCOTLAND
[2] AGR RES CTR,ORANGE,NSW 2800,AUSTRALIA
关键词
genotype-by-environment interaction; variance heterogeneity;
D O I
10.1007/BF00222947
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
The retrospective analysis of a large database on wheat variety testing in New South Wales (NSW) is considered. This analysis involved three key steps. Initially error variance heterogeneity is modelled, indicating significant differences in error variance due to trial location, year of trialling, sowing date and trial mean yield. The implication of this modelling for the estimation of variance components is discussed.
引用
收藏
页码:21 / 27
页数:7
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