Anais do Congresso Brasileiro de Virologia & Encontro de Virologia do Mercosul

TESTING TOMATO PRODUCTION UNDER BEGOMOVIRUS INFECTION, AND CHANGES IN TRANSPLANT PREPARATION

Published in 04/01/2021 - ISBN: 978-65-5941-175-7

Link All Papers
LinkSubmission
DOI
10.29327/cbv.297618  
Paper Title
TESTING TOMATO PRODUCTION UNDER BEGOMOVIRUS INFECTION, AND CHANGES IN TRANSPLANT PREPARATION
Authors
  • Cristiano da Silva Rodrigues
  • José Luiz Pereira
  • Alice Kazuko Inoue Nagata
  • Carlos Francisco Ragassi
Modality
Resumo
Subject area
Vegetal e Invertebrados
Publishing Date
04/01/2021
Country of Publishing
Brasil
Language of Publishing
Inglês
Paper Page
https://www.even3.com.br/anais/cbv/297618-testing-tomato-production-under-begomovirus-infection-and-changes-in-transplant-preparation
ISBN
978-65-5941-175-7
Keywords
Begomovirus, Tomato for processing, Transplants trays, Transplant age, Productivity
Summary
Tomato is the second most planted vegetable crop, and Brazil has the eighth biggest tomato processing industry, with 1.2 million tonnes processed in 2019. This crop is affected by various diseases, particularly those caused by viruses. One of the most important viruses in Brazil is tomato severe rugose virus (ToSRV), a begomovirus vectored by whiteflies. The whitefly Bemisia tabaci MEAM-1 is a highly efficient vector responsible for spreading this virus throughout the country. The chemical control of whiteflies through insecticides and the use of partially resistant cultivars are the most popular measures to manage the begomovirus disease in tomatoes. In order to provide additional control measures to growers, this study aimed to test the hypothesis that the seedling quality influences the infection by ToSRV, and fruit yield. The tomato hybrid cultivar Heinz-9553 was used in 10 treatments: seedlings grown in trays with 400 (11 cm³ soil volume each cell) and 162 (50 cm³) cells for 20, 30, 40, 50, and 60 days. The seedlings were inoculated with ToSRV by viruliferous whiteflies (30 insects per plant) for 48 hours prior to transplanting in a central-pivot irrigated field in Cristalina, Goiás State, Brazil, in 2019. Control plants without virus inoculation were included, in a three-factorial design of 2 x 5 x 2 = 20 treatments with four replications, following a complete randomized block design. Each plot comprised 16 plants, eight of them being the useful plot. The morphological parameters related to the plant development were evaluated during the growing cycle, and fruit yield and physical-chemical properties were evaluated following harvest, 120 days after transplanting. All treatments with inoculated plants had a significant (p < 0.05) decrease in productivity (47% for number of fruits, and 57% for fruit weight, in average). However, the yield was not influenced by the size of the cell or age of the transplants. The use of trays with 162 (50 cm³) cells reduced the number of sun scalded tomatoes. ToSRV infected plants completed the cycle faster, as less immature fruits were harvested from these plants. Physical-chemical characteristics of the fruits were not significantly affected by the infection, by the cell size, or the age of the transplants. The healthy transplants of 50 days had the best results for yield in both 400 cells and 162 cells trays. It was clear that the infection of transplants by ToSRV greatly affected the yield, but the cell size and transplant age seem to have a low effect in the tomato production. The experiment is being repeated to confirm the results. Financial support: CAPES, FAP-DF, FAPESP
Title of the Event
XXXI Congresso Brasileiro de Virologia & XV Encontro de Virologia do Mercosul
Title of the Proceedings of the event
Anais do Congresso Brasileiro de Virologia & Encontro de Virologia do Mercosul
Name of the Publisher
Even3
Means of Dissemination
Meio Digital
DOI

How to cite

RODRIGUES, Cristiano da Silva et al.. TESTING TOMATO PRODUCTION UNDER BEGOMOVIRUS INFECTION, AND CHANGES IN TRANSPLANT PREPARATION.. In: Congresso Brasileiro de Virologia & Encontro de Virologia do Mercosul. Anais...Porto Alegre(RS) Online, 2020. Available in: https//www.even3.com.br/anais/cbv/297618-TESTING-TOMATO-PRODUCTION-UNDER-BEGOMOVIRUS-INFECTION-AND-CHANGES-IN-TRANSPLANT-PREPARATION. Access in: 05/08/2025

Paper

Even3 Publicacoes