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Floresta
Article . 2017 . Peer-reviewed
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USO DA MICROBIOLIZAÇÃO CONTRA Lasiodiplodia theobromae EM SEMENTES DE PINUS SPP.

Authors: Caciara Gonzatto Maciel; Marlove Fátima Brião Muniz; Jéssica Mengue Rolim; Rosa Maria Dalla Nora Michelon; Tales Poletto; Jéssica Emília Rabuske;

USO DA MICROBIOLIZAÇÃO CONTRA Lasiodiplodia theobromae EM SEMENTES DE PINUS SPP.

Abstract

O uso de agentes biocontroladores no controle de doenças em plantas é uma alterativa aos produtos químicos que vem conquistando seu espaço, isso, devido a nossa condição atual de proteção e manutenção do meio ambiente. Muitos organismos antagonistas apresentam potencial tanto para o controle de fitopatógenos, quanto para promoção do desenvolvimento de plântulas. O presente estudo objetivou avaliar a ação antagonista de seis produtos biológicos (Trichodermil®, Trichodel®, Quality®, Rizos®, Rizolyptus® e Nutrisolo®) e uma cepa bacteriana (Bacillus sp.-UFSM) no controle in vitro e in vivo de Lasiodiplodia theobromae patogênico a Pinus sp.. Os testes in vitro foram realizados através da inibição do crescimento micelial (confronto pareado de culturas), após incubação por sete dias a 25 ± 2 ºC e fotoperíodo de 12 horas. Para os testes in vivo (desenvolvidos em condições de casa de vegetação), as sementes inicialmente foram inoculadas com o patógeno e, na sequência, microbiolizadas com os agentes antagônicos, para posterior semeadura. A inoculação foi realizada através do método de contato em meio BDA por 48 horas. Todos os produtos testados apresentaram resultados positivos nos testes in vitro, destacando-se em relação a testemunha. Nutrisolo®, Trichodel® e Bacillus sp.-UFSM apresentaram valores superiores a testemunha para diâmetro de colo em plântulas de P. elliottii. Enquanto para P. taeda, Bacillus sp.-UFSM, Quality®, Trichodel® e Trichodermil® alcançaram os maiores valores para essa variável. De maneira geral os agentes antagônicos atuaram promovendo as variáveis de qualidade final de mudas de Pinus taeda e Pinus elliottii.

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    2
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
Average
Average
gold