Navegando por Assunto "Tomate - Doenças e pragas"

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Avaliação de progênies da geração F2:3 do tomateiro à Ralstonia pseudosolanacearum
(2018) Silva, Erick Guilherme Rodrigues de Aguiar; Carvalho Filho, José Luiz Sandes de; http://lattes.cnpq.br/5884704145845869; http://lattes.cnpq.br/1672137648802531
Efeito residual do inseticida spinosad para lagartas da traça-do-tomateiro, Tuta absoluta (Meyrick) e ninfas do percevejo predador Podisus nigrispinus (Dallas)
(2001) Silva, Christian Sherley Araújo da; Torres, Jorge Braz; Oliveira, Marta Vasconcelos de; Evangelista Júnior, Walter Santos
Estudou-se a persistência do inseticida spinosad no controle da traça-do-tomateiro, Tuta absoluta e impacto sobre ninfas do percevejo predador, Podisus nigrispinus. Os experimentos foram conduzidos em casa-de-vegetação, utilizando-se plantas de tomate industriais var IPA-5 em floração. As avaliações procederam-se em cinco avaliações após a pulverização. Constatou-se mortalidade de largatas variando de 90,0; 62,5; 8,0: 3,4 e 5,0% para o spinosad e; 48,7; 44,0; 11,5; 4,0 e 0% para a abamectina, em 2, 72, 144, 288 e 576 h após à pulverização, respectivamente. Para ninfas do percevejo predador, verificou-se mortalidade de 15,0; 5,0; 0; 4,0 e 11,2% para o spinosad e; 18,7; 10,2; 35,0; 18,7 e 0% para a abamectina, respectivamente. O inseticida spinosad mostrou-se eficiente no controle da traça-do-tomateiro até o terceiro dia após pulverização e destacou-se, em relação à abamectina. Considerando a mortalidade de ninfas do predador entre 2 a 576 h após aplicação, ambos inseticidas podem ser classificados como de baixo impacto, de acordo com o IOBC (International Organization for Biological Control - Work Groups) para as condições de semicampo.
Estresse salino e biofertilizante no crescimento inicial do tomateiro
(2018-08-24) Silva, Tamires Fernanda da; Alves, Samara Sibelle Vieira; http://lattes.cnpq.br/7447103801683932
The tomato (Lycopersicon esculentum Mill.) Is one of the most known and consumed vegetables in the world. It can be used in both raw and processed food in the form of sauces, ketchup, extract, dehydrated tomatoes, etc. In some regions of the Northeast, as the semiarid climate prevails, the water in most of these regions is saline, but the only one available for use in agriculture. Studies on the use of biofertilizers as attenuators of the effect of salinity on plants are promising, since tomato is considered moderately tolerant to salinity. In view of the above, this work aimed to evaluate the tolerance of tomato to different levels of salinity in the irrigation water associated to the use of bovine biofertilizer. For this experiment the cherry tomato cv. Fern of TopSeed Garden. The experimental design was completely randomized with four treatments, in the presence and absence of biofertilizer and four replications. The research was carried out in greenhouse at the Garanhuns Academic Unit - UFRPE. The plants were watered with water of different levels of salinity 0.5; 2.48; 4.88; 8.7 dS m-1, obtained by mixing saline water and urban water supply and the same salinity levels with the addition of 5% biofertilizer. The plants were watered maintaining the field capacity. The characteristics evaluated biweekly were: stem diameter, leaf number, plant height, leaf area, LAI, AFE, RAF, and chlorophyll A and B contents. These characteristics will be evaluated every 15 days. Growth was reduced with increasing salinity of irrigation water. The cherry tomato cv. Samambaia was more tolerant to salinity than the literature suggests. The use of the biofertilizer presented small effects as an attenuator of the saline stress.
Monitoramento agronômico de áreas de tomate no agreste de Pernambuco
(2018-11-12) Lima, Arthur Torres de; Rocha, Alexandre Tavares da; http://lattes.cnpq.br/4960111047922130; http://lattes.cnpq.br/8796243529249208