Título:	Genetic divergence of strawberry cultivars under different managements.
Autoria:	COSTA, A. F. da RIBEIRO, L. P. TEODORO, P. E. BHERING, L. L. TARDIN, F. D. FORNAZIER, M. J. COSTA, H. MARTINS, D. dos S. ZANUNCIO JUNIOR, J. S.
Afiliação:	Andrea Ferreira da Costa, Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural - INCAPER; Larissa Pereira Ribeiro, Universidade Federal de Viçosa; Paulo Eduardo Teodoro, Universidade Federal de Viçosa; Leonardo Lopes Bhering, Universidade Federal de Viçosa; FLAVIO DESSAUNE TARDIN, CNPMS; Mauricio José Fornazier, Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural - INCAPER; Hélcio Costa, Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural - INCAPER; David dos Santos Martins, Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural - INCAPER; José Salazar Zanuncio Júnior, Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural - INCAPER.
Ano de publicação:	2018
Referência:	Bioscience Journal, Uberlândia, v. 34, n. 1, p. 129-137, Jan./Feb. 2018.
Conteúdo:	Developing strawberry cultivars that can be grown on a large scale, it is necessary to gather desirable characteristics such as: tolerance to Tetranychus urticae, high fruit yield and wide adaptability to several cropping managements. Therefore, our objective was to study the genetic diversity among 13 strawberry cultivars under different managements and to recommend promising crosses to obtain segreganting populations with high fruit yield and T. urticae tolerance. Trial was performed under field conditions at the Centro Regional de Desenvolvimento Rural Centro Serrano of the Instituto Capixaba for Technical Assistance and Rural Extension (Incaper), Domingos Martins-ES. We evaluated strawberry cultivars Albion, Aleluia, Aromas, Camarosa, Camino Real, Campinas, Diamante, Dover, Festival, Seascape, Toyonoka, Tudla, and Ventana, cultivated in three cropping managements: open field, low tunnel and high tunnel. Experimental design was randomized complete blocks with three replications. Variables evaluated were: number of two-spotted spider mite/cm2 on the leaf (NTSSM), total number of fruits (TNF), number of commercial fruits (NCF) and fruit yield (YIE, t/ha). We applied the generalized Mahalanobis distance and Tocher?s optimization method to study the genetic diversity among cultivars in each management, and the relative contribution of traits to genetic diversity was evaluated according to the criterion described by Singh (1981). For the low tunnel and high tunnel environments, the crosses Aleluia x Camarosa, Aleluia x Aromas and Aleluia x Festival are the most promising to generate segregating populations with a higher possibility to appearance transgressive individuals, while for the open field cultivation system, we recommend the cross among Aleluia x Toynoka. The variables that most contributed for genetic dissimilarity were total number of fruits, fruit yield and number of commercial fruits for the environments open field, low tunnel and high tunnel, respectively.
Thesagro:	Morango Genética
Palavras-chave:	Interação genótipo X ambiente
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPMS)