Identification of Lines of Tomato Resistant to Bacterial Wilt

Mendes, Adônis Queiroz; Menezes, Dimas; Carvalho, Islan Diego Espindula de; Silva, Adriano Márcio Freire; Alves, Aldenir de Oliveira; Filho, Ezildo Francisco Felinto; Lima, Lilian Bonfim de; Melo, Gérsia Gonçalves de

doi:10.9734/jeai/2018/42549

Cited by 3 publications

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“…in Chã Grande/PE under greenhouse conditions at 34º C, observed that the cultivars Hawaii 7996 and Yoshimatsu obtained incidences of 53.12% and 87.50% respectively. This differs from the percentages found byMendes et al (2018) in Recife/PE, under greenhouse conditions at 26º C, in which both cultivars obtained a 2.77% incidence of bacterial wilt. Lower incidences were found byCosta (2019), under the same conditions asMendes et al (…”

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confidence: 96%

“…AUDPC: Area under the disease progress curve Thus, there are three groups, with the cultivars Santa Adélia, Coração de Boi, San Marzano, Yoshimatsu and Bartô making up group one, with the lowest disease progress. The cultivars Hawaii 7996 and Cereja have intermediate performance (group two) and the others are in group three, with the greatest area under the disease progress curve Mendes et al (2018),. in Recife/PE, with a difference of 10º C less than that of this study, found much lower AUDPC values, in which the cultivars Yoshimatsu and Hawaii 7996 obtained bacterial wilt progress of 0.08, 0.04 respectively.…”

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Identification of tomato cultivars resistant to Ralstonia pseudosolanacearum

Costa,

Varjão,

Silva

et al. 2024

Preprint

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The bacterium Ralstonia pseudosolanacearum is responsible for one of the main tomato diseases, bacterial wilt. The only effective control measure for this disease is the use of resistant cultivars. The aim of this study was to identify tomato cultivars resistant to Ralstonia pseudosolanacearum. The experiment was conducted in a greenhouse at the Federal Institute of Alagoas - Piranhas Campus. The experimental design used was entirely randomized in a factorial scheme (10 x 2), containing 10 tomato cultivars and two isolates of the species Ralstonia pseudosolanacearum, totaling 20 treatments in three replications, resulting in 60 experimental plots, each containing four plants. Using the diagrammatic scale of bacterial wilt scores, phytopathometry of the disease was carried out using the following variables: Incidence (INC), Bacterial Wilt Index (BWI), Disease Index (DI), Latency Period (LP50), Area Under the Disease Progress Curve (AUDPC) and Infection Rate (IR). These variables were obtained for the 5th − 10th and 15th − 20th day of evaluation. There was a significant interaction between Cultivars x Isolates for the following variables: BWI, AUDPC, IR (5th − 10th day of evaluation) and for BWI, DI and IR (15th − 20th day of evaluation). The variables LP50, INC, IR and AUDPC characterized the start of the bacterial wilt epidemic from the first evaluation interval, regardless of the cultivars and isolates. The cultivar Havaí 7996 was classified as resistant to the isolate CRMRs108, and the cultivar Bartô was classified as moderately resistant to both isolates.

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confidence: 99%

Identification of tomato cultivars resistant to Ralstonia pseudosolanacearum

Costa,

Varjão,

Silva

et al. 2024

Preprint

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“…The evaluated characteristics presented high estimates of the genetic parameters of heritability and ratio between the coefficients of genetic and experimental variation, a very favorable point in breeding programs, since it indicates in a general way that these characters can be easily improved through classic methods [34,35] and provide favorable conditions for realization of selection, allowing to obtain high genetic gain within the first cycles [36,37].…”

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confidence: 99%

Evaluation of the Ornamental Potential of Safflower (Carthamus tinctorius L.)

Melo

Costa

Loges

et al. 2019

JEAI

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Aims: To evaluate the ornamental potential of two safflower genotypes (Carthamus tinctorius L.): ICA 73, ICA 193, grown under protected environment. Place and Duration of Study: Department of Agronomy of Federal Rural University of Pernambuco, between March and May 2017. Methodology: The methodology addressed evaluated the performance of the two genotypes, through three experiments. The first experiment was carried out in a completely randomized design, being evaluated: plant height; stem diameter; leaf dentin; spinescent margin of the leaves; number of branches; number of flower buds; spinescent margin of the bracts; flowering, and flower production. The second one was conducted in a randomized complete block design in a factorial scheme, and the following variables were evaluated: plant height; stem diameter; number of branches; number of flower buds; and flower production. Finally, the third experiment used a completely randomized design in a factorial scheme and evaluated the variables: Number of flowers; number of flower buds and post-harvest durability. The analysis of variance was performed using the F test at 5% of probability and, afterwards, the regression or comparison analysis of averages by the Tukey test at 5% of probability. Results: The ICA 73 access showed plants with high flower production and the ICA 193 exhibited plants with weak or moderate spinescent margin of the leaves and bracts, besides good uniformity of the anthesis of the flowers. Conclusion: Both accesses showed ornamental potential, demonstrating precocity, beauty and durability of the flowers. The density of one plant was the most favorable for pot plant and cut flower. The semi-open flowers harvest point was the best for maintaining the stem quality.

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Cultivares de tomateiro reagem com moderada resistência a isolados de Ralstonia pseudosolanacearum

Costa,

Varjão,

Silva

et al. 2024

Cad. Pedagógico

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A bactéria Ralstonia pseudosolanacearum é responsável por uma das principais doenças do tomateiro, a murcha bacteriana. A única medida eficaz de controle desta doença é a utilização de cultivares resistentes. Objetivou-se neste estudo avaliar a reação de resistência de cultivares de tomateiro à murcha bacteriana. O experimento foi conduzido em casa de vegetação. O delineamento experimental utilizado foi inteiramente casualizado em esquema fatorial (10 × 2), contendo 10 cultivares de tomateiro e dois isolados da espécie R. pseudosolanacearum, totalizando 20 tratamentos em três repetições, resultando em 60 parcelas experimentais, cada uma contendo quatro plantas. Através da escala diagramática de notas da murcha bacteriana, foi realizada a fitopatometria da doença utilizando as variáveis: Incidência (INC), Índice de Murcha Bacteriana (IMB), Índice da Doença (ID), Período de Latência (PL50), Área Abaixo da Curva do Progresso da Doença (AACPD) e Taxa de Infecção (TI). Estas variáveis foram obtidas para o intervalo do 5º - 10º e 15º - 20º dia de avaliação. Houve interação significativa entre Cultivares x Isolados, para as seguintes variáveis: IMB, AACPD, TI (5º - 10º dia de avaliação) e para IMB, ID e TI (15º - 20º dia de avaliação). Nenhuma cultivar de tomateiro reagiu com total resistência a ambos os isolados de R. pseudosolanacearum. A cultivar San Marzano reagiu com moderada resistência ao isolado CCRMRs212, e a Coração de boi ao isolado CCRMRs108. As cultivares Bartô e Santa Adélia reagiram com moderada resistência a ambos os isolados.

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Identification of Lines of Tomato Resistant to Bacterial Wilt

Cited by 3 publications

References 0 publications

Identification of tomato cultivars resistant to Ralstonia pseudosolanacearum

Identification of tomato cultivars resistant to Ralstonia pseudosolanacearum

Evaluation of the Ornamental Potential of Safflower (Carthamus tinctorius L.)

Cultivares de tomateiro reagem com moderada resistência a isolados de Ralstonia pseudosolanacearum

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