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      Potencial de multiplicação in vitro de cultivares de morangueiro Translated title: In vitro multiplication potential of strawberry cultivars

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          Abstract

          Este trabalho foi realizado com o objetivo de avaliar o potencial de multiplicação in vitro de dez cultivares de morangueiro: Aromas, Bürkley, Camarosa, Campinas, Dover, Milsei-Tudla, Oso Grande, Santa Clara, Sweet Charlie e Vila Nova. Utilizou-se protocolo similar ao dos laboratórios comerciais. A desinfestação dos estolões foi realizada em soluções à base de álcool e hipoclorito de sódio; a cultura dos meristemas em meio semi-sólido MS com 1 mg L-1 BAP, 0,01 mg L-1 ANA e 0,1 mg L-1 AG3; e a multiplicação em meio MS com 1 mg L-1 BAP, à 25 ± 4ºC, 20 µE m-2 s-1 e fotoperíodo de 16 horas. Partiu-se de 10 meristemas de cada cultivar, avaliando-se a taxa de multiplicação e os níveis de contaminação, vitrificação e oxidação durante as fases de estabelecimento (30 dias) e de multiplicação (quatro subcultivos). O número estimado de plântulas obtidas por meristema foi: 559 de 'Aromas'; 569 de 'Bürkley'; 516 de 'Camarosa'; 517 de 'Campinas'; 3.907 de 'Dover'; 1.841 de 'Milsei-Tudla'; 943 de 'Oso Grande'; 350 de 'Santa Clara'; 298 de 'Sweet Charlie', e 1.132 de 'Vila Nova'. A quantificação dessa variabilidade genética é importante para o planejamento da produção de matrizes de cada cultivar nos laboratórios de micropropagação.

          Translated abstract

          The objective of this research work was to evaluate the in vitro multiplication potential of ten strawberry cultivars : 'Aromas', 'Bürkley', 'Camarosa', 'Campinas', 'Dover', 'Milsei-Tudla', 'Oso Grande', 'Santa Clara', 'Sweet Charlie', and 'Vila Nova'. The procedures used for this purpose were similar to those found in the protocol observed by commercial micropropagation laboratories. The disinfestation of the scions was made by dipping them in an alcohol and sodium hypochlorite solution, the meristem culturing in a semisolid medium containing 1 mg of BAP, 0.01 mg of NAA, and 0.1 mg of G3A per liter and the scions multiplication in an MS medium containing 1 mg of BAP at 25° ± 4° C, 20 µE m-2 s-1 and a photoperiod of 16 hours. Each cultivar was represented by 10 scions and for each one the multiplication rate, the levels of contamination, the vitrification and the oxidation were evaluated during the establishment ( 30 days ) and multiplication phases ( 4 subcultures). The estimated number of seedlings per scion from each cultivar was : 559 for 'Aromas', 569 for 'Burkley', 516 for 'Camarosa', 517 for 'Campinas', 3,907 for 'Dover', 1,841 for 'Milsei-Tudla', 943 for 'Oso Grande', 350 for 'Santa Clara', 298 for 'Sweet Charlie', and 1,132 for 'Vila Nova'. The quantification of this genetic variability helps in the planning of the matrical plants production of each cultivar which takes place in commercial micropropagation laboratories.

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          Most cited references13

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          AGRIANUAL 2000: anuário da agricultura brasileira

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            AGRIANUAL 2005: anuário da agricultura brasileira

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              Manejo integrado de pragas e doenças do morangueiro

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                Author and article information

                Journal
                rbf
                Revista Brasileira de Fruticultura
                Rev. Bras. Frutic.
                Sociedade Brasileira de Fruticultura (Jaboticabal, SP, Brazil )
                0100-2945
                1806-9967
                December 2004
                : 26
                : 3
                : 507-510
                Affiliations
                [02] Pelotas RS orgnameEmbrapa Clima Temperado rpedroso@ 123456cpact.embrapa.br
                [01] Pelotas RS orgnameUniversidade Católica de Pelotas
                Article
                S0100-29452004000300032 S0100-2945(04)02600332
                10.1590/S0100-29452004000300032
                aa5fda26-b569-4b56-af02-a592c187c3f4

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 25 October 2004
                : 12 February 2004
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 13, Pages: 4
                Product

                SciELO Brazil

                Categories
                Propagação

                produção de mudas,Fragaria x ananassa,pathogen cleaning,micropropagation,runner plants production,limpeza de patógenos,micropropagação

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