Evaluation of tomato rootstocks and its use to control bacterial wilt disease

Autores

  • Suane Coutinho Cardoso Instituto Federal de Educação, Ciência e Tecnologia Baiano
  • Ana Cristina Fermino Soares Universidade Federal do Recôncavo da Bahia
  • Alexsandro dos Santos Brito Instituto Federal de Educação, Ciência e Tecnologia Baiano
  • Andiale Pinto dos Santos Embrapa Meio Ambiente
  • Francisco Ferraz Laranjeira Embrapa Mandioca e Fruticultura
  • Lea Araújo de Carvalho Universidade Federal do Recôncavo Baiano

DOI:

https://doi.org/10.5433/1679-0359.2012v33n2p595

Palavras-chave:

Solanum lycopersicum, Ralstonia solanacearum, H7996.

Resumo

Tomato plants are susceptible to bacterial wilting, which causes production losses varying from 10 to 100 %. A method for controlling this disease is the use of grafting on resistant rootstocks. This work had the objective of evaluating tomato genotypes for the resistance to Ralstonia solanacearum and the grafting technique as an alternative for the bacterial wilt control in the region of Recôncavo Baiano, Brazil. To evaluate the resistance to R. solanacearum, four local genotypes, collected in different regions of Bahia, the cv. Santa Clara as a susceptible treatment, and the Hawaii 7996 (H7996), as a resistant treatment were studied. For the evaluation of grafting method for control of bacterial wilt, the H7996 was used as rootstock, and the cvs. Santa Clara, Santa Cruz Kada, and Débora Plus were used as the scion plants. Both experiments were evaluated in an area infested with R. solanacearum, for a period of 65 days for the selection of the rootstocks and 45 days for the evaluation of the grafting method. Only the H7996 can be recommended as a R. solanacearum resistant rootstock. The other genotypes showed susceptibility to the pathogen. The grafting on the H7996 did not show incompatibility with the scion tomato cultivars tested and reached 100 % control of the bacterial wilt disease, for all treatments, suggesting that this method can be used as an alternative for the bacterial wilt control, allowing the production of susceptible tomato cultivars in areas infested with R. solanacearum.

 

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Biografia do Autor

Suane Coutinho Cardoso, Instituto Federal de Educação, Ciência e Tecnologia Baiano

Profª Drª. Instituto Federal de Educação, Ciência e Tecnologia Baiano, Campus Guanambi, Distrito de Ceraíma, s/n, Guanambi, BA, 46430-000.

Ana Cristina Fermino Soares, Universidade Federal do Recôncavo da Bahia

Profª. Drª Universidade Federal do Recôncavo da Bahia, UFRB, Centro de Ciências Agrárias, Ambientais e Biológicas, CCAAB, Cruz das Almas, BA.

Alexsandro dos Santos Brito, Instituto Federal de Educação, Ciência e Tecnologia Baiano

Prof. Dr. Instituto Federal de Educação, Ciência e Tecnologia Baiano, Campus Guanambi, Distrito de Ceraíma, s/n, Guanambi, BA, 46430-000.

Andiale Pinto dos Santos, Embrapa Meio Ambiente

Doutoranda. Embrapa Meio Ambiente, Rod. SP 340. Km 127, Tanquinho, Jaguariúna, SP.

Francisco Ferraz Laranjeira, Embrapa Mandioca e Fruticultura

Pesquisador Dr. Embrapa Mandioca e Fruticultura, Rua Embrapa, s/n, Cruz das Almas, BA..

Lea Araújo de Carvalho, Universidade Federal do Recôncavo Baiano

Profª. Drª UFRB, Centro de Ciências Agrárias, Ambientais e Biológicas, Cruz das Almas, BA.

 

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Publicado

2012-05-14

Como Citar

Cardoso, S. C., Soares, A. C. F., Brito, A. dos S., Santos, A. P. dos, Laranjeira, F. F., & Carvalho, L. A. de. (2012). Evaluation of tomato rootstocks and its use to control bacterial wilt disease. Semina: Ciências Agrárias, 33(2), 595–604. https://doi.org/10.5433/1679-0359.2012v33n2p595

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