Fontes de resistência a Scrobipalpula absoluta (Meyrick, 1917) em tomateiro

Lourenção, André Luiz; Nagai, Hiroshi; Zullo, Marco António Teixeira

doi:10.1590/s0006-87051984000200026

Cited by 23 publications

(15 citation statements)

References 2 publications

(1 reference statement)

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“…Campinas, IAC, 2009. virus. Moreover, it has also resistance to tospovirus and to the tomato leafminer (Tuta absoluta) (Lourenção et al, 1984(Lourenção et al, , 1997. Surprisingly, PI 126931 was highly susceptible to the ToYVSV isolate presently used.…”

Section: Resultsmentioning

confidence: 99%

Selection of tomato breeding lines with resistance to Tomato yellow vein streak virus

et al. 2015

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The study aimed to assess the reaction to Tomato yellow vein streak virus (ToYVSV) of determinate-growth tomato breeding lines of the Instituto Agronomico de Campinas (Campinas Agronomic Institute) germplasm collection and to select resistant plants. The experiment was carried out from August 2008 to February 2009 in greenhouse conditions. The geminivirus isolate used was collected in a tomato commercial field, in Sumaré, São Paulo State, Brazil. The experimental design was completely ramdomized blocks, with 25 treatments, four replications, and 30-plant plots. Virus transmission was carried out in cages containing viruliferous whiteflies (Bemisia tabaci B biotype). Plant reaction to the pathogen was evaluated by means of the percentage of symptomless plants 40, 50, 57 and 64 days after transplanting. Virus detection in each genotype was carried out using PCR. Although all genotypes showed plants with and without ToYVSV symptoms, lines IAC-TG 17 and LA 462 (Solanum peruvianum) stood out due to the highest percentage of symptomless plants in the four evaluation dates. Therefore, considering the genotypes evaluated and the edaphoclimatic conditions in which this work was carried out, lines IAC-TG 17 and LA 462 can be used as sources of resistance to ToYVSV.

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Section: Resultsmentioning

confidence: 99%

Selection of tomato breeding lines with resistance to Tomato yellow vein streak virus

et al. 2015

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“…The causes of the L. pimpinellifolium resistance to pests like T. absoluta and Spodoptera exigua (Lourenção et al, 1984;Eigenbrode & Trumble, 1993) are related to chemical factors such as the presence of α-tomatine, and physical factors such as the hardness of the fruit cuticle (Juvik & Stevens, 1982 ). In L. hirsutum f. glabratum, the allelochemical 2-tridecanone confers resistance of the non-preference type (Barbosa, 1994) and antibiosis (Gonçalves-Gervais, 1998) to the tomato pinworm.…”

Section: Euclidian Distancementioning

confidence: 99%

Feeding non-preference by Spodoptera frugiperda and Spodoptera eridania on tomato genotypes

et al. 2013

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RESUMONão preferência para alimentação em genótipos de tomateiro por Spodoptera frugiperda e Spodoptera eridaniaLagartas do gênero Spodoptera spp. são altamente polífagas, podendo causar danos econômicos em diversas culturas agrícolas. Em vista de sua emergente importância na cultura do tomate, principalmente o destinado à indústria, este trabalho teve por objetivo avaliar a não preferência, para alimentação, de lagartas de Spodoptera frugiperda (J. E. Smith, 1797) e Spodoptera eridania (Cramer, 1782) por genótipos de tomateiro, e classificá-los quanto aos graus de resistência. Como padrão susceptível, utilizou-se o cultivar comercial Santa Clara e, como resistente, a linhagem PI 134417, sendo avaliadas, ainda, as linhagens PI 134418, PI 126931, LA 462 e LA 716. Realizaram-se testes de não preferência, para alimentação, com e sem chance de escolha, avaliando-se a atratividade dos genótipos de tomateiro para as lagartas, em tempos pré-estabelecidos após sua liberação, além da massa foliar consumida. Em geral, os Larvae of the genus Spodoptera spp. are highly polyphagous and can cause economical losses in several agricultural crops. Given their growing importance in the tomato crop, especially for industry, this work aimed to evaluate the feeding non-preference by larvae of Spodoptera frugiperda (J. E. Smith, 1797) and Spodoptera eridania (Cramer, 1782) on tomato genotypes and classify them by the levels of resistance. The commercial cultivar Santa Clara was set as the susceptible standard and line PI 134417 as the resistant standard to evaluate the lines PI 134418, PI 126931, LA 462 and LA 716. Feeding non-preference tests were performed under non-choice and free-choice conditions to evaluate the genotype attractiveness to larvae at predetermined times after their release, as well as the leaf area consumed. Overall, the genotypes LA 716 and PI 126931 were the least attractive to S. frugiperda, whereas Santa Clara was the most attractive and consumed. For S. eridania, the genotypes PI 126931, LA 462, LA 716 and PI 134418 were the least preferred for feeding, and Santa Clara and PI 134417 were the most attractive and consumed. The genotypes LA 716 and PI 126931 are moderately resistant to S. frugiperda and S. eridania; PI 134418 and LA 462 are moderately resistant to S. eridania; PI 134417 is susceptible to S. frugiperda and S. eridania; and Santa Clara is highly susceptible to both S. frugiperda and S. eridania.

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“…Due to the economic importance of this crop, other methods to control this pest have been studied by several authors, such as genetic resistance of plants (Lourenção et al, 1984;Thomazini et al, 2001), use of entomopathogens (Giustolin et al 2001a(Giustolin et al , 2001b and botanical insecticides (Brunherotto & Vendramim, 2001;Thomazini et al, 2001). The biological control with the parasitoid Trichogramma pretiosum Ridley (Hymenoptera: Trichogrammatidae) is successful against the SATP, but it is susceptible to insecticides applied against the whitefly Bemisia tabaci (Genn.)…”

Section: Efeito Da Diversificação De Plantas Na Abundância Da Traça-dmentioning

confidence: 99%

Effect of plant diversification on abundance of South American tomato pinworm and predators in two cropping systems

2009

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Several studies have demonstrated that the diversification of the agroecosystem may reduce insect pest infestation using the strategy of companion planting. We studied the effect of the presence of coriander and Gallant soldier as companion plants in the tomato crop under organic and conventional management on abundance of the tomato pests and predators. The experiment was carried out under field conditions, at Distrito Federal, Brazil, from July to October, 2004. The experimental design was of randomized blocks with three replicates in a 3 x 2 factorial arrangement [Three crop diversification levels: tomato in monoculture, tomato intercropped with coriander, and tomato intercropped with coriander and Gallant soldier; and two cropping systems: organic and conventional]. Each plot had 80 plants of the tomato and the pest-insects and predaceous arthropods were collected every week in five tomato plants/plot. Tuta absoluta (Meyr.) was the commonest pest species in both cropping systems. The tomato intercropped with coriander and Gallant soldier in organic cropping system had lower abundance and higher diversity of pests, and higher abundance and diversity of predaceous arthropods, mainly at 80 days after the tomato transplanting, coinciding with the population peak of T. absoluta (eggs and adults). The more abundant predators were spiders, lady beetles and ants. The spiders were abundant and uniformly distributed in both systems. The lady beetles appeared lately in the organic system, at the flowering season of the coriander. The ants were more abundant in the conventional systems.

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Fontes de resistência a Scrobipalpula absoluta (Meyrick, 1917) em tomateiro

Cited by 23 publications

References 2 publications

Selection of tomato breeding lines with resistance to Tomato yellow vein streak virus

Selection of tomato breeding lines with resistance to Tomato yellow vein streak virus

Feeding non-preference by Spodoptera frugiperda and Spodoptera eridania on tomato genotypes

Effect of plant diversification on abundance of South American tomato pinworm and predators in two cropping systems

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