Genetic parameters of tomato families F2:3 in resistance to Ralstonia pseudosolanacearum and Ralstonia solanacearum
Journal Title: Revista Verde de Agroecologia e Desenvolvimento Sustentável - Year 2018, Vol 13, Issue 1
Abstract
The tomato (Solanum lycopersicum) is an important crop in Brazil, however, it is susceptible to different types of bacteria races. The objective was to study the genetic parameters of 43 F2:3 families of tomato in resistance to R. pseudosolanacearum and R. solanacearum. The families were obtained from the cross between the cultivars Yoshimatsu (resistant) and IPA-7 (susceptible). Two experiments were carried out in a greenhouse at Universidade Federal Rural de Pernambuco, one for each species of the genus R. spp. A randomized block design was used with four replications and 45 treatments. There is less influence of the environment, and greater variability for R. pseudosolanacearum than for R. solanacearum, both among and within families. For R. pseudosolanacearum it is recommended to select 10 days between families, and 20 days between and within families. R. solanacearum should be selected from families only at 20 days. Larger amounts of resistant plants were identified for R. pseudosolanacearum at any time of evaluation than for R. solanacearum.
Authors and Affiliations
Kleyton Danilo da Silva Costa, Tâmara Rebecca Albuquerque de Oliveira, Ana Maria Maciel dos Santos, Maxwel Rodrigues Nascimento, Adriano Márcio Freire Silva, José Luiz Sandes de Carvalho Filho
Keywords
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- EP ID EP284822
- DOI 10.18378/rvads.v13i1.5295
- Views 79
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