Reação e resistência de porta-enxertos de tomateiro à murcha de fusário

Cantú, Rafael Ricardo; Rebelo, José Angelo; Milanesi, Paola Mendes; Goto, Rumy

doi:10.1590/0103-8478cr20130843

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…However, as it is a drastic method it may hinder the identification of genotypes bearing partial resistance. The stability of this resistance must be verified in field studies and evaluated until the adult plant (Cantú et al, 2014).…”

Section: Nova Friburgo and 5 Cultivars From Labeps Bank (Brsmentioning

confidence: 99%

Control failures of Fusarium wilt on tomatoes and resistance of cultivars to the three races of the pathogen

Oliveira,

Carmo,

Ferreira

et al. 2023

Rev. Ceres

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The use of resistant cultivars is the main strategy to control Fusarium wilt on tomato, caused by Fusarium oxysporum f. sp. lycopersici. This study aimed to quantify the incidence and distribution of this disease in the region of Nova Friburgo, RJ, as well as the type of resistance of tomato cultivars to the three FOL races. Samples of healthy and wilted plants from 40 properties were evaluated for the presence of vascular discouloration. Seventeen tomato cultivars were evaluated for resistance to the three FOL races using a grading scale. Classification for resistance/susceptibility, incidence and percentage of infection of the vascular system, fresh weight accumulation and seedling length were determined. All the cultivars analysed behaved as similar to immune (SI) to race 1 of FOL and similar to immune or partial resistance to race 2. Only Aguamiel cultivar presented a SI reaction to FOL race 3. None of the cultivars presented a SI reaction to the three races. It can be concluded that failures on the control of the disease in this region can be attributed to the majority use of cultivars with incomplete resistance to the three FOL races. The seed packages also contain incomplete information about FOL resistance.

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Section: Nova Friburgo and 5 Cultivars From Labeps Bank (Brsmentioning

confidence: 99%

Control failures of Fusarium wilt on tomatoes and resistance of cultivars to the three races of the pathogen

Oliveira,

Carmo,

Ferreira

et al. 2023

Rev. Ceres

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show abstract

“…lycopersici (FERRAZ et al, 2014), and appears as one of the most important fungal diseases in the tomato cultivation in Brazil. It can be found in almost all the tomato producing regions (CANTÚ et al, 2014). This disease might provoke up to 100% loss in the crop (MARTÍNEZ et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Action of Trichodermil 1306 in the control of Fusarium oxysporum f. sp. lycopersici in tomato crops

et al. 2020

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Fusarium wilt, caused by Fusarium oxysporum f. sp. lycopersici, is one of the most important diseases of tomato crop in Brazil. Several alternatives to fungicides have been evaluated in search for products that control this disease and have low environmental impact and toxicity to living beings. In this context, the use of Trichoderma spp. is an alternative to agrochemicals, since they are bioregulators and antagonists of several phytopathogens. This work aimed to evaluate the antagonistic and mycoparasitory action of the Trichodermil 1306 biofungicide against F. oxysporum, and its action in the control of fusarium wilt in tomato seeds and seedlings. The biofungicide was used at concentrations of 0, 50, 100, and 150% of the dose recommended for application of 20 L with a backpack sprayer. The experiment was conducted in a completely randomized design with five replications. Data were submitted to analysis of variance and mean compared by Tukey’s test at 5% probability. The 100% Trichodermil concentration was the most efficient for treating tomato seeds. Although this concentration did not show differences in relation to the lowest dose used (50%) in the tomato seed antagonism, mycoparasitism and F. oxysporum incidence tests were recommended because that the lowest concentration resulted in 18% lower root protrusion than that observed with 100% dosage. The in vitro antagonistic and mycoparasitory action of this biological fungicide indicates its potential in the control of fusarium wilt in tomato crops.

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Reação e resistência de porta-enxertos de tomateiro à murcha de fusário

Cited by 2 publications

References 6 publications

Control failures of Fusarium wilt on tomatoes and resistance of cultivars to the three races of the pathogen

Control failures of Fusarium wilt on tomatoes and resistance of cultivars to the three races of the pathogen

Action of Trichodermil 1306 in the control of Fusarium oxysporum f. sp. lycopersici in tomato crops

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