Data/hora: 13/06/2024 08:24:06

Biblioteca(s): | Embrapa Agricultura Digital.
Data corrente: | 25/05/2009
Data da última atualização: | 01/12/2010
Autoria: | LAMBERT, E. de S.; PINTO, C. A. B. P.; MENEZES, C. B. de.
Afiliação: | EDUARDO DE SOUZA LAMBERT, CNPSo; CÉSAR AUGUSTO BRASIL PEREIRA PINTO, UFLA; UFLA; CÍCERO BESERRA DE MENEZES, Sakata Seed Sudamerica Ltda.
Título: | Potato improvement for tropical conditions: II. Selection indices and efficiency of indirect selection.
Ano de publicação: | 2006
Fonte/Imprenta: | Crop Breeding and Applied Biotechnology, Londrina, v. 6, n. 3, p. 185-193, June 2006.
Idioma: | Inglês
Conteúdo: | This study evaluated the efficiency of selection indices that can contribute to potato clone selection under favorable and stressful conditions as well as the possibility of indirect selection for heat tolerance. Among the selection indices, the arithmetic and geometric means and index 4 were the most appropriate. The susceptibility index and percentage of yield reduction indicate only specifically adapted clones. Indirect selection for heat tolerance is not suitable in view of the law correlation coefficient among clone means in the environments. Selection based on the overall environment mean is more fit to select broadly adapted genotypes, in spite of low perfomance means under favorable conditions. Well-adapted genotypes to both stress and favorable conditions can however be selected.
Palavras-Chave: | Melhoramento genético; Solanum tuberosum L; Tolerância ao calor.
Thesagro: | Agricultura; Batata; Biotecnologia; Genética.
Categoria do assunto: | G Melhoramento Genético
Registro original: | Embrapa Agricultura Digital (CNPTIA)
Exemplares: | CNPTIA - (12930-1) - ADD - AP - PP -  -  -  - DIS