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New sources of partial resistance to bacterial spot race T2 in processing tomatoes 75
Berrueta,María C; Giménez,Gustavo; Galván,Guillermo A; Borges,Alejandra.
ABSTRACT Bacterial leaf spot of tomato is caused by four Xanthomonas species, among which Xanthomonas vesicatoria race T2 predominates in Uruguay. Difficulties in integrated disease management and the rapid spread of the pathogen led to investigations of genetic resistance. This study aimed to identify resistance sources to bacterial leaf spot race T2 in tomato for processing. Twelve genotypes were evaluated under field conditions in 2010 and 2011. Plants were spray-inoculated with a suspension of bacteria (108 cfu/mL) 15 days after transplantation. Incubation period, disease severity on leaves, and the percentage of fruits with symptoms at harvest were determined. The incubation period did not differ among the genotypes. The genotype 'Hawaii 7981' had the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Xanthomonas vesicatoria; Solanum lycopersicum; Quantitative resistance; Durable resistance; Tomato breeding..
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362016000300326
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