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Porta-enxerto de tomate protege planta de doenças do solo e aumenta produtividade da lavoura


News provided by

Bayer

Dec 20, 2022, 09:19 ET

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Alternativa controla a murcha bacteriana, doença causada pela bactéria Ralstonia Solanacearum, uma das mais importantes e destrutivas que afetam os tomateiros

SÃO PAULO, 20 de dezembro de 2022 /PRNewswire/ -- Uma das principais doenças de solo que ataca os tomateiros é a murcha bacteriana, causada pela bactéria Ralstonia solanacearum, trazendo sérias implicações epidemiológicas e consequências econômicas em campos comerciais de cultivo de tomate, o que limita a capacidade produtiva e a sustentabilidade do negócio das espécies hospedeiras afetadas. Como alternativa para proteger a planta e aumentar o vigor e produtividade da lavoura, os agricultores começaram a utilizar o porta-enxerto.

"O uso de porta-enxertos comerciais no cultivo de tomates tem se popularizado por conferir ganhos à lavoura. A enxertia – como é conhecida a técnica – é um método de propagação que consiste na fusão dos tecidos de duas plantas diferentes, cuja finalidade é explorar as características desejáveis de cada uma", explica Daniela Augustinho, gerente de marketing da Seminis. "De uma forma geral, a parte inferior (porta-enxerto) contribui com as raízes e é responsável pelo suporte da planta, pela absorção de água e nutrientes e pela adaptação às condições de solo e substrato", diz. 

Para conter a propagação da doença nos tomateiros, uma medida de alta eficácia é a utilização de porta-enxertos de tomate com elevada tolerância a determinados biovares da Ralstonia solanacearum, que é conhecido por ser um patógeno habitante do solo, persistindo por vários anos, e que apresenta grande diversidade genética, bioquímica e de virulência. A bactéria penetra a planta a partir do sistema radicular por meio de feridas ou aberturas naturais, que acaba levando a planta à morte. 

Um exemplo de porta-enxerto generativo que tem apresentado bons resultados no manejo dessa doença é o Shincheonggang, produto exclusivo da Seminis, segmento de hortifrúti da Bayer.  Ele apresenta também resistência à raça 3 da murcha-de-Fusarium e a nematoides formadores de galhas, problema comum em diversas culturas além do tomate, sendo ideal para o manejo integrado de diferentes doenças e pragas.

Além do Shincheonggang, a Seminis possui um portfólio de porta-enxertos desenvolvidos para atender as diversas necessidades dos produtores, com opções para aqueles que precisam de mais vigor, como o porta-enxerto vegetativo Multifort, e para os que precisam de um equilíbrio entre vigor e tolerâncias a doenças de solo, como é o caso do Gumgang.

"A idade ideal para a enxertia é de 18 a 30 dias após a semeadura, dependendo da técnica adotada e condições climáticas. Outra excelente característica é que ele proporciona melhor manejo fitossanitário das doenças de solo, adotando uma maior segurança quando feito dentro de um programa de manejo integrado. Isso possibilita o cultivo de tomates dentro dos padrões comerciais, aumentando a lucratividade do produtor", destaca a executiva.

Para dar suporte ao produtor que tem interesse em adotar a tecnologia de porta-enxertos de tomate para a lavoura, a Seminis conta com uma equipe técnica espalhada por todo o Brasil: https://www.vegetables.bayer.com/br/pt-br/where-to-buy.html. E para conhecer o portfólio de porta-enxertos da Seminis, acesse https://www.vegetables.bayer.com/br/pt-br/produtos/porta-enxerto.html.

Sobre a Bayer

A Bayer é uma empresa global com competências essenciais nas ciências da vida nos setores de agronegócios e saúde. Seus produtos e serviços são projetados para ajudar as pessoas e o planeta a prosperar, apoiando os esforços para superar os principais desafios apresentados por uma população global em crescimento e envelhecimento. A Bayer está comprometida em impulsionar o desenvolvimento sustentável e gerar um impacto positivo em seus negócios. Ao mesmo tempo, o Grupo pretende aumentar o seu poder de ganho e criar valor através da inovação e do crescimento. A marca Bayer representa confiança, confiabilidade e qualidade. O Brasil é a terceira maior operação da companhia no mundo.

Declarações prospectivas 

Este comunicado pode conter declarações prospectivas baseadas nas previsões atuais da equipe executiva da Bayer. Diversos riscos, incertezas e outros fatores, conhecidos ou desconhecidos, podem gerar diferenças materiais entre os reais e futuros resultados, situações financeiras, desenvolvimentos e desempenhos da empresa e as estimativas apresentadas aqui. Esses fatores incluem aqueles discutidos nos relatórios públicos da Bayer, disponíveis no site da empresa. A companhia se isenta de qualquer responsabilidade pela atualização destas declarações prospectivas e pela precisão de eventos e desenvolvimentos futuros. 

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