Induction of tolerance to bacterial wilt in hybrids of tomatoes by application of gibberellin

Fabrício Rodrigues, Ana Carolina Pacheco Nunes, Daniel Diego Costa Carvalho, Mylla Crysthyan Ribeiro


The bacterial wilt (Ralstonia solanacearum) is a serious problem to produce Solanaceae plants in several Brazilian regions, mainly under protected environments. The gibberellin (GA3) is a hormone that has its proven efficiency to increase several traits in tomato plants, however, there is no study about the potential of this hormone for the induction of disease tolerance. Thus, the objective of the work was to study the effect of the application of gibberellin to increase tolerance in tomato hybrids to bacterial wilt. The experimental design was a randomized block design, in a factorial scheme 8 x 5 (hybrids and application times), with three replications. The variables of plant height, number of flowers, fresh shoot mass, transverse diameter of fruits, number of fruits and fruit weight were studied after 120 days of sowed. It was verified that there is significant difference for all variables studied and for the sources of variation. The gibberellin can induce increased tolerance in tomato plants to bacterial wilt, however, the time of application is dependent on the hybrid and the desired variable to obtain the best performance. The application on the 24th day, after planting, was the one that presented the high gains in the different hybrids and variables, followed by the 32nd day.


Solanum lycopersicum L., Ralstonia solanacearum, hormone, fruits.


AYANA G & FININSA C. 2016. Effect of crop rotation on tomato bacterial wilt (Ralstonia solanacearum) and survival of the pathogen in the rhizospheres and roots of different crops in Ethiopia. International Journal of Phytopathology 5: 81-88.

AYUB RA & REZENDE BLA. 2010. Contribuição do ácido giberélico no tamanho de frutos do tomateiro. Biotemas 23: 25-28.

CATO SC et al. 2013. Sinergism among auxins, gibberellins and cytokinins in tomato cv. Micro-Tom. Horticultura Brasileira 31: 549-553.

DING J et al. 2013. Cytokinin-induced parthenocarpic fruit development in tomato is partly dependent on enhanced gibberellin and auxin biosynthesis. PLoS One 8: e70080.

DING Y et al. 2015. The role of gibberellins in the mitigation of chilling injury in cherry tomato (Solanum lycopersicum L.) fruit. Postharvest Biology and Technology 101: 88-95.

FARINHA TB. 2008. Envolvimento da giberelina na regulação do desenvolvimento vegetativo e reprodutivo de tomateiro (Solanum lycopersicum) cv Micro-Tom. Dissertação (Mestrado em Fisiologia e Bioquímica de Plantas). Piracicaba: ESALQ. 73p.

FERREIRA DF. 2011. Sisvar: a computer statistical analysis system. Ciência e Agrotecnologia 35: 1039-1042.

JIANG J et al. 2014. Effect of seed treatment by cold plasma on the resistance of tomato to Ralstonia solanacearum (bacterial wilt). Plos one 9: e97753.

LOPES CA & ÁVILA AC. 2005. Doenças do tomateiro. Brasília: Embrapa Hortaliças. 151p.

LOPES CA et al. 2015. Eficácia relativa de porta-enxertos comerciais de tomateiro no controle da murcha-bacteriana. Horticultura Brasileira 33: 125-130.

MARTÍNEZ LO et al. 2013. Efecto de las giberelinas sobre el crecimiento y calidad de plántulas de tomate. Biotecnia 15: 56-60.

MARTINS AO. 2013. Impactos ecofisiológicos e metabólicos da alteração nos níveis de giberelina em tomate. Dissertação (Mestrado em Fisiologia). Viçosa: UFV. 95f.

MORAIS TP et al. 2015. Occurrence and diversity of Ralstonia solanacearum populations in Brazil. Bioscience Journal 31: 1722-1737.

ROCHA DJA & MOURA AB. 2013. Controle biológico da murcha de tomateiro causada por Ralstonia solanacearum e Fusarium oxysporum f. sp. licopersici por rizobactérias. Tropical Plant Pathology 38: 423-430.

Rodrigues LMR et al. 2011. Pathogenicity of Brazilian strains of Ralstonia solanacearum in Strelitzia reginae seedlings. Tropical Plant Pathology 36: 409-413.

TAIZ L & ZEIGER E. 2013. Fisiologia vegetal. 5.ed. Porto Alegre: Artmed. 954p.

TAKATSU A & LOPES CA. 1997. Murcha-bacteriana em hortaliças: avanços científicos e perspectivas de controle. Horticultura Brasileira 15: 170-177. (Suplemento).

VENDRUSCOLO EP et al. 2016. GA3 em sementes de tomateiro: efeitos na germinação e desenvolvimento inicial de mudas. Revista de agricultura neotropical 3: 19-23.



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