Genetic parameters of resistance components to Xanthomonas spp. in tomato

被引：0

作者：

Mendes de Souza, Marcelo Francisco ^{[1
]}

Rodrigues, Rosana ^{[1
]}

do Amaral, Antonio Teixeira, Jr. ^{[1
]}

Sudre, Claudia Pombo ^{[1
]}

机构：

[1] Univ Estadual Norte Fluminense Darcy Ribeiro UENF, Lab Melhoramento Genet Vegetal, BR-28013602 Campos Dos Goytacazes, RJ, Brazil

来源：

CROP BREEDING AND APPLIED BIOTECHNOLOGY | 2008年 / 8卷 / 02期

关键词：

bacterial spot; Solanum lycopersicum; resistance; genetic parameters; breeding programs;

D O I：

暂无

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

This study aimed to estimate genetic parameters of tomato for reaction to bacterial spot in six parents and fifteen hybrids to identify resistant genotypes and indicate breeding programs for satisfactory genetic gains. The genotypes were evaluated in a complete randomized block design with three replications and six plants per plot in a greenhouse. The resistance to bacterial spot was evaluated on three bases: oil a grade scale (GS), based on the area under the disease-progress curve (AUDPC) and on the incubation period (IPR) of the races T1, T2 and T3, at 10(3) CFU mL(-1). UENF 157 was resistant to races T1, T2 and T3 and UENF 158 to race T2. The bulk method can be recommended for better results in recombined inbred lines for T1-resistance, while the pedigree method is proposed for T2 and T3.

引用

页码：155 / 162

页数：8

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