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| Nunes Gomes, Erik; Krinski, Diones. |
| O objetivo do presente trabalho foi avaliar o efeito de diferentes concentrações do regulador vegetal ácido indolbutírico (AIB) no enraizamento e brotações de estacas caulinares de Piper crassinervium. Estacas caulinares de 12±1 cm, contendo uma folha reduzida a um terço de seu tamanho, tiveram suas bases imersas por 15 segundos em soluções hidroalcoólicas (50%) com concentrações de zero, 500, 1000, 2000 e 4000 mg L-1 de AIB. Após 45 dias da instalação do experimento, foram avaliadas as porcentagens de sobrevivência, enraizamento, estacas que mantiveram as folhas na região apical (retenção de folhas) e estacas com emissão de novas brotações, número, comprimento médio e massa seca de raízes e massa seca de brotações. Foram observadas altas porcentagens de... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2019 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/1926 |
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| Krinski, Diones; Foerster, Luís Amilton; Deschamps, Cicero. |
| The toxicities of essential oils (EOs) from 18 species of Brazilian Piperaceae were assessed on eggs of the velvetbean caterpillar, Anticarsia gemmatalis. Oils were extracted using steam distillation, and dilutions were made for bioassays at concentrations of 0.25, 0.5, 1.0, 2.0, and 4.0%. All EOs reduced larval hatching. The lowest lethal concentrations were obtained from Piper fuligineum (SP), Piper mollicomum “chemotype 1” (SP), Piper mosenii (PR), Piper aduncum (PA) and Piper marginatum (PA). Ovicidal activity is related to the potential toxicity of several compounds, especially dilapiolle, myristicin, asaricine, spathulenol and piperitone. According to our results, EOs from 16 Brazilian Piper species have potential for use as biorational botanical... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fitossanidade Piper abutiloides; Piper fuligineum; Piper marginatum; Bioinseticides. Controle de Pragas. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/35273 |
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| Krinski, Diones; Foerster, Luís Amilton; Deschamps, Cicero. |
| The toxicities of essential oils (EOs) from 18 species of Brazilian Piperaceae were assessed on eggs of the velvetbean caterpillar, Anticarsia gemmatalis. Oils were extracted using steam distillation, and dilutions were made for bioassays at concentrations of 0.25, 0.5, 1.0, 2.0, and 4.0%. All EOs reduced larval hatching. The lowest lethal concentrations were obtained from Piper fuligineum (SP), Piper mollicomum “chemotype 1” (SP), Piper mosenii (PR), Piper aduncum (PA) and Piper marginatum (PA). Ovicidal activity is related to the potential toxicity of several compounds, especially dilapiolle, myristicin, asaricine, spathulenol and piperitone. According to our results, EOs from 16 Brazilian Piper species have potential for use as biorational botanical... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Piper abutiloides; Piper fuligineum; Piper marginatum; Bioinseticides.; Controle de Pragas. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/35273 |
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