Produção de tubérculos de batata-semente sob efeito de Trichoderma sp. e rizobactérias em casa de vegetação

Autores

DOI:

https://doi.org/10.5965/223811712142022419

Palavras-chave:

Trichoderma, Azotobacter, Bacillus, batata para processamento, bactérias , fungos, tubérculos

Resumo

A batata (Solanum tuberosum L.) é uma das principais culturas da região andina e devido aos aspectos ambientais, o uso de agentes de biocontrole é considerado uma forma segura de produzir tubérculos de batata-semente. O objetivo do trabalho foi avaliar a inoculação de batata com Trichoderma sp. como matriz e rizobactérias Bacillus simplex e Azotobacter sp. sobre o crescimento de mudas de batata provenientes de cultivo in vitro, para produção de tubérculos-semente em casa de vegetação. A inoculação dos microrganismos foi realizada em vasos, utilizando-se cinco genótipos de batata para processamento. Os tratamentos de inoculação foram: testemunha, Trichoderma sp., Trichoderma sp. + Azotobacter sp., Trichoderma sp. + B.simplex, Trichoderma sp. + B.simplex + Azotobacter sp. Os genótipos de batata foram cv. Única (CIP392797.22), cv. Bicentenaria, os clones avançados CIP396311.1, CIP399101.1, e o clone experimental UH-9 da Universidade Nacional José Faustino Sánchez Carrión. O delineamento foi inteiramente casualizado, em esquema fatorial e as comparações entre os tratamentos foram feitas com p<0,05. Todos os tratamentos com inoculantes excederam o controle em número e peso de tubérculos por planta, bem como em tamanho de tubérculo. Inoculações de Trichoderma sp. sozinho ou com Azotobacter sp. aumento da altura das plantas, número de folhas por planta e uniformidade vegetativa; inoculações com o Trichoderma sp. + B.simplex + Azotobacter sp. consorcio, melhorou a massa seca da folhagem, número de brotações por planta e vigor vegetativo. Houve interações significativas entre genótipos de batata e tratamentos inoculantes para uniformidade e vigor vegetativo, e para a massa seca da folhagem. Coinoculação com Trichoderma sp. e algumas cepas bacterianas promovem o crescimento de mudas de batata in vitro, aumentando o tamanho e o peso dos tubérculos-semente e da biomassa vegetal, indicando que existe inter-relação entre fungos e bactérias que influenciam a produção de batata em casa de vegetação.

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Publicado

2022-12-12

Como Citar

CONTRERAS-LIZA, Sergio Eduardo; RAMÍREZ, Rodrigo Jesus Mauricio; OLIVAS, Dionicio Belisario Luis. Produção de tubérculos de batata-semente sob efeito de Trichoderma sp. e rizobactérias em casa de vegetação. Revista de Ciências Agroveterinárias, Lages, v. 21, n. 4, p. 419–427, 2022. DOI: 10.5965/223811712142022419. Disponível em: https://www.revistas.udesc.br/index.php/agroveterinaria/article/view/22152. Acesso em: 28 mar. 2024.

Edição

Seção

Artigo de Pesquisa - Ciência de Plantas e Produtos Derivados