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Efficiency of selection in early generations of potato families with a view toward heat tolerance

Authors :
Izabel Cristina Rodrigues de Figueiredo
Guilherme Henrique Martins Rodrigues Ribeiro
Leandro de Oliveira Lino
César Augusto Brasil Pereira Pinto
Carolina Mariane Moreira
Danilo Hottis Lyra
Departamento de Biologia
Federal University of Lavras
Génétique et Amélioration des Fruits et Légumes (GAFL)
Institut National de la Recherche Agronomique (INRA)
Escola Superior de Agricultura 'Luiz de Queiroz' (ESALQ), Departamento de Genética
University of São Paulo (USP)
National Council of Scientific and Technological Development (CNPq)
Unité de recherche Génétique et amélioration des fruits et légumes (GALF)
Source :
Crop Breeding and Applied Biotechnology 4 (15), 210-217. (2015), Crop Breeding and Applied Biotechnology, Crop Breeding and Applied Biotechnology, 2015, 15 (4), pp.210-217. ⟨10.1590/1984-70332015v15n4a37⟩, Crop Breeding and Applied Biotechnology, Vol 15, Iss 4, Pp 210-217 (2015), Crop Breeding and Applied Biotechnology, Volume: 15, Issue: 4, Pages: 210-217, Published: DEC 2015, Crop Breeding and Applied Biotechnology v.15 n.4 2015, Sociedade Brasileira de Melhoramento de Plantas, instacron:CBAB
Publication Year :
2015

Abstract

The aim of this study was to evaluate the efficiency of selection of potato families in early generations for heat tolerance. Thirty families were evaluated in the seedling generation (SG), first clonal generation (FCG) in the field and greenhouse under high temperature conditions, and second clonal generation (SCG) under mild temperatures. The mean of the families was obtained in each generation. The 16 most productive families in FCG were selected, and the clones of these families were evaluated in experiments in the winter and rainy crop seasons. The results showed that family selection for tuber shape may be applied as of the SG. It was also observed that family selection in the FCG and SCG for yield and tuber specific gravity contributed to identification of clones tolerant to heat and responsive to environmental improvement. Resumo O objetivo deste trabalho foi avaliar a eficiência da seleção de famílias de batata nas gerações precoces para tolerância ao calor. Foram avaliadas 30 famílias na geração seedling (SG), primeira geração clonal (FCG) em campo e casa de vegetação sob condições de temperaturas elevadas e segunda geração clonal (SCG) sob temperaturas amenas e obtidas as médias das famílias em cada geração. Foram selecionadas 16 famílias mais produtivas na FCG e os clones dessas famílias foram avaliados em experimentos nas safras de inverno e "das águas". Os resultados mostraram que a seleção de famílias para formato de tubérculos pode ser aplicada desde a SG. Também observou-se que a seleção de famílias na FCG e SCG para produtividade e peso específico de tubérculos contribuiu para a identificação de clones tolerantes ao calor e responsivos a melhoria ambiental.

Details

Language :
English
ISSN :
19847033
Database :
OpenAIRE
Journal :
Crop Breeding and Applied Biotechnology 4 (15), 210-217. (2015), Crop Breeding and Applied Biotechnology, Crop Breeding and Applied Biotechnology, 2015, 15 (4), pp.210-217. ⟨10.1590/1984-70332015v15n4a37⟩, Crop Breeding and Applied Biotechnology, Vol 15, Iss 4, Pp 210-217 (2015), Crop Breeding and Applied Biotechnology, Volume: 15, Issue: 4, Pages: 210-217, Published: DEC 2015, Crop Breeding and Applied Biotechnology v.15 n.4 2015, Sociedade Brasileira de Melhoramento de Plantas, instacron:CBAB
Accession number :
edsair.doi.dedup.....7815f14b0d25f4d60b84801b3fd22f15
Full Text :
https://doi.org/10.1590/1984-70332015v15n4a37⟩