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| Titel: |
On the possibility of exploiting autocorrelations within rows to estimate genetic and environmental variance and covariance in a plantation |
| Auteur: |
Robson, D.S. |
| Verschenen in: |
Communications in statistics |
| Paginering: | Jaargang 3 (1974) nr. 10 pagina's 913-922 |
| Jaar: |
1974 |
| Inhoud: |
Uniformity analysis of a genetically heterogeneous plantation has been used as a technique for separating total variance into genetic and environmental components. By superimposing a plot structure on a plantation of randomly allocated genotypes and calculating an analysis of variance between plots and within plots, Shrikhande (1957) showed that application of H.F. Smith's empirical variance law to the 'between plots' mean square results in identifiability of the two variance components. An alternative procedure consists of exploiting the regularity of the autocorrelation function within rows; various empirical studies have shown that in uniformity trials the correlation ρk between the first and the kth plant in a row decreases as ρk = ρk. Such a model for environmental correlation (with no correlation between the first and kth genotype) results in identifiability of genetic and environmental components of variance and covariance. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 11 van 12 gevonden artikelen
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