Please use this identifier to cite or link to this item:
http://www.alice.cnptia.embrapa.br/alice/handle/doc/205636Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | BRESEGHELLO, F. | pt_BR |
| dc.contributor.author | MORAIS, O. P. de | pt_BR |
| dc.contributor.author | RANGEL, P. H. N. | pt_BR |
| dc.date.accessioned | 2015-04-25T05:06:03Z | - |
| dc.date.available | 2015-04-25T05:06:03Z | - |
| dc.date.created | 1999-03-17 | pt_BR |
| dc.date.issued | 1998 | pt_BR |
| dc.identifier.citation | Genetics and Molecular Biology, v. 21, n. 4, p. 551-555, 1998. | pt_BR |
| dc.identifier.uri | http://www.alice.cnptia.embrapa.br/alice/handle/doc/205636 | pt_BR |
| dc.description | The genetic gain obtained by breeding programs to improve quantitative traits may be estimated by using data from regional trials. A new statistical method for this estimate is proposed and includes four steps: a) joint analysis of regional trial data using a generalized linear model to obtain adjusted genotype means and covariance matrix of these means for the whole studied period; b) calculation of the arithmetic mean of the adjusted genotype means, exclusively for the group of genotypes evaluated each year; c) direct year comparison of the arithmetic means calculated, and d) estimation of mean genetic gain by regression. Using the generalized least squares method, a weighted estimate of mean genetic gain during the period is calculated. This method permits a better cancellation of genotype x year and genotype x trial/year interactions, thus resulting in more precise estimates. This method can be applied to unbalanced data, allowing the estimation of genetic gain in series of multilocational trials. | pt_BR |
| dc.language.iso | eng | eng |
| dc.rights | openAccess | eng |
| dc.title | A new method to estimate genetic gain in annual crops. | pt_BR |
| dc.type | Artigo de periódico | pt_BR |
| dc.date.updated | 2015-04-25T05:06:03Z | pt_BR |
| dc.subject.thesagro | Melhoramento genético vegetal | pt_BR |
| dc.subject.thesagro | Genética | pt_BR |
| riaa.ainfo.id | 205636 | pt_BR |
| riaa.ainfo.lastupdate | 2015-04-24 | pt_BR |
| dc.identifier.doi | https://doi.org/10.1590/S1415-47571998000400024 | eng |
| dc.contributor.institution | FLAVIO BRESEGHELLO, CNPAF; ORLANDO PEIXOTO DE MORAIS, CNPAF; PAULO HIDEO NAKANO RANGEL, CNPAF. | pt_BR |
| Appears in Collections: | Artigo em periódico indexado (CNPAF)  | |
