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| Maluf,Wilson Roberto; Inoue,Irene Fumi; Ferreira,Raphael de Paula Duarte; Gomes,Luiz Antonio Augusto; Castro,Evaristo Mauro de; Cardoso,Maria das Graças. |
| The objective of this work was to evaluate the feasibility of selection for higher glandular trichome densities, as an indirect criterion of selection for increasing repellence to spider mites Tetranychus urticae, in tomato populations derived from an interspecific cross between Lycopersicon esculentum x L. hirsutum var. glabratum PI 134417. Trichome densities were evaluated in 19 genotypes, including 12 from advanced backcross populations, derived from the original cross L. esculentum x L. hirsutum var. glabratum PI 134417. Counts were made both on the adaxial and abaxial leaf surfaces, and trichomes were classified into glandular types IV and VI, other glandular types (types I+VII), and nonglandular types. Mite repellence was measured by distances walked... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lycopersicon hirsutum; Tetranychus urticae; 2-tridecanone; Methyl-ketone; Resistance. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2007000900003 |
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| TAVEIRA,FRANCISCA S. N.; ANDRADE,ELOISA H. A.; LIMA,WATERLOO N.; MAIA,JOSÉ G. S.. |
| The essential oils of the leaves and fine stems of Pilocarpus microphyllus, collected on iron mineralized soil of the Serra de Carajás, Southeast of Pará State, Brazil, during the rainy and dry seasons, were obtained by hydrodistillation and analyzed by GC-MS. The main identified compounds were 2-tridecanone, beta-caryophyllene, 2-pentadecanone, caryophyllene oxide and germacrene D. Their percentage contents varied with the season, the greater values having been detected mainly in the rainy season. For 2-tridecanone and beta-caryophyllene the higher values were observed in the fine stem oils for the former, and in the leaf oils for the latter. For 2-pentadecanone, caryophyllene oxide and germacrene D they were also in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pilocarpus microphyllus; Rutaceae; Jaborandi; Essential oil composition; 2-tridecanone; 2-pentadecanone; Sesquiterpenes. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652003000100004 |
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| Braga,Yussef F.B.; Grangeiro,Thalles B.; Freire,Eder A.; Lopes,Helano L.; Bezerra,José N. S.; Andrade-Neto,Manoel; Lima,Mary Anne S.. |
| The effect of 2-tridecanone vapor on the cowpea weevil (Callosobruchus maculatus) development was determined. Seeds of cowpea were infested with adults and exposed to different doses of 2-tridecanone isolated from Pilocarpus microphyllus Stapf ex Holm, a plant species native from northeastern Brazil. The pure monoterpene was evaluated both undiluted as well as in the dilutions 1:10, 1:100 and 1:1,000 (v/v). The following parameters of the cowpea weevil life cycle were analyzed in response to decreasing doses of 2-tridecanone: number of eggs laid, percentage of egg hatching on seeds, percentage of adult emergence, adult weight at emergence, mean developmental time and number of adults... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Callosobruchus maculatus; Cowpea; 2-tridecanone; Pilocarpus microphyllus. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652007000100005 |
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