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
Related Articles
- EP ID EP284822
- DOI 10.18378/rvads.v13i1.5295
- Views 106
- Downloads 0
Perceptions of family farmers about agroecological transition in an agricultural cooperative in Rio Grande do Sul
The aim of this article was describes perceptions of family farmers of a agricultural cooperative from Rio Grande do Sul about implications caused by the production system changing: from conventional to agroecological fo...
Seedlings of Mimosa caesalpiniaefolia Benth (Leguminosae: Mimosoideae) grown on organic substrates
Success in growing forest species, such as sage (Mimosa caesalpiniaefolia Benth), depends essentially on the use of good quality seedlings. At this stage of production, several materials have potential for use, mainly, o...
Uniformity coefficients in low-flow sprayers with different arrangements and height
In sprinkler irrigation, the water is precipitated artificially. In this system, the distribution efficiency is subject to the characteristics of the sprinkler, pressure, operating flow, external factors such as wind and...
Socioeconomic and organizational dynamics in remaining quilombo community Rio Gurupá, Marajó, Pará
1. The present work aimed to analyze the socioeconomic dynamics and the organization in agroextractivist family units of the remaining community of quilombo Rio Gurupá, Municipality of Cachoeira do Arari, Marajó, state o...
Overcoming dormancy in seeds of Sapindus saponaria L. (Sapindaceae)
The Sapindus saponaria L. it is a species that possesses propagation just for seeds and her germination tax is relatively moderate the drop. Therefore, it was aimed at to evaluate different treatments pre-germinating in...