Data/hora: 01/06/2024 12:56:11

Biblioteca(s): | Epagri-Sede.
Data corrente: | 05/01/2022
Data da última atualização: | 05/01/2022
Autoria: | MOREIRA, A. F. P.; RESENDE, J. T. V.; SHIMIZU, G. D.; HATA, F. T.; NASCIMENTO, D.; OLIVEIRA, L. V. B.; ZANIN, D. S.; MARIGUELE, K. H.
Título: | Characterization of strawberry genotypes with low chilling requirement for cultivation in tropical regions.
Ano de publicação: | 2022
Fonte/Imprenta: | Scientia Horticulturae, Amesterdã, v. 292, p. 1-12, 2022.
Idioma: | Inglês

Conteúdo:

Although strawberry can be cultivated in all types of climate, it grows best in temperate climates, limiting its 
cultivation in certain countries or regions with tropical or subtropical climates. The objective of this study was to 
verify the genetic diversity of 34 pre-selected day-neutral strawberry genotypes in humid tropical and subtropical 
conditions through characterization of morpho-agronomic characteristics and molecular markers. The selection 
was based on qualitative and quantitative morpho-agronomic traits, using the Gower algorithm. Molecular 
characterization was performed with AFLP markers, using four combinations of selective primers. Six representative variables were subjected to principal component analysis (PCA) and the Mulamba and Mock selection 
index. Soluble solids and luminosity of the outer part of the fruit did not differ among genotypes but presented 
values above those usually found. AFLP markers detected 80% polymorphism, confirming high genetic variability among genotypes. Clustering based on molecular and agronomic data separated the genotypes into three 
groups, and the Mulamba and Mock index did not select individuals derived from ?Albion? or RVFS06. PCA 
highlighted the genotypes RVCA16M-1, RVDA11M-3, RVDA11M-4, and RVDA11M-25 as superior for most of the 
evaluated traits compared with the commercial cultivars ?Albion? and ?Monterey?. The PCA and selection index 
results indicate the reliability of the multivariate analysis for selecting superior strawberry genotypes for 
cultivation in tropical regions. Of the 34 genotypes analyzed, four stood out with potential for immediate 
cultivation.

Palavras-Chave: | AFLP; Fragaria sp; Heating Selection; Morpho-agronomic descriptors; Multivariate analysis.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
URL: | http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_50641.pdf
Registro original: | Epagri-Sede (Epagri-Sede)
Exemplares: | Epagri-Sede - (106666-1) - UPC - AP - DD -  -  -  - DIS