An alternative for the management of the tomato moth is genetic resistance obtained through interspecific crosses. The aim of this study was to select genotypes from the second generation of the first backcrossing (F2BC1) between the cultivar Redencao, which presents processing characteristics, and the wild access Solanum habrochaites var. hirsutum ‘PI-127826’, containing high levels of zingiberene and resistant to tomato moths, using different damage evaluation methodologies. For this purpose, F2BC1 genotypes with different zingiberene levels were submitted to a pest resistance test comprising ten treatments. The treatments consisted of five F2BC1 genotypes with high zingiberene content, three with low content, and the parental plants. The damage caused by the caterpillars were evaluated using two methodologies, a graded visual evaluation and estimates of the percentage of damaged leaf areas. Additionally, population growth was evaluated based on the count of the number of caterpillars present on leaflets. Zingiberene-rich F2BC1 genotypes were less damaged compared to those containing low levels of this substance and the recurrent parent. The two methodologies for assessing damages were demonstrated as feasible. The RVTZ 2011–079-117 and RVTZ 2011–079-335 genotypes presented potential as resistant tomato moth sources.

中文翻译：

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选择用于加工的含有高水平姜烯和抗番茄蛲虫的 F2BC1 番茄基因型

番茄蛾管理的另一种选择是通过种间杂交获得的遗传抗性。本研究的目的是从具有加工特性的品种 Redencao 和野生的 Solanum habrochaites var. 之间的第一次回交 (F2BC1) 的第二代中选择基因型。hirsutum 'PI-127826'，使用不同的损伤评估方法，含有高水平的姜烯和抗番茄蛾。为此，将具有不同姜烯水平的 F2BC1 基因型提交给包含 10 个处理的害虫抗性测试。处理由五种姜烯含量高的 F2BC1 基因型、三种低含量的 F2BC1 基因型和亲本植物组成。毛毛虫造成的损害使用两种方法进行评估，分级视觉评估和受损叶面积百分比的估计。此外，根据传单上存在的毛虫数量来评估人口增长。与含有低水平这种物质和重复亲本的基因型相比，富含姜烯的 F2BC1 基因型受到的损害较小。这两种评估损害的方法被证明是可行的。RVTZ 2011-079-117 和 RVTZ 2011-079-335 基因型具有作为抗番茄蛾源的潜力。这两种评估损害的方法被证明是可行的。RVTZ 2011-079-117 和 RVTZ 2011-079-335 基因型具有作为抗番茄蛾源的潜力。这两种评估损害的方法被证明是可行的。RVTZ 2011-079-117 和 RVTZ 2011-079-335 基因型具有作为抗番茄蛾源的潜力。