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Ação de estimulantes vegetais no desenvolvimento de pepino (Cucumis sativus L.)

Action of plant stimulants on growth of cucumber plants (Cucumis sativus L.)

Resumos

Observou-se o efeito de quatro estimulantes vegetais no desenvolvimento de plantas de pepino 'Hibrido Caipira AG-207', em condições de casa de vegetação, tendo a semeadura sido realizada em vasos de cerâmica e as plantas pulverizadas sete dias após a semeadura, com Triacontanol (1-hidroxitriacontano) na dosagem de 0,5 g/l, Ergostim (L-cisteina e ácido fólico + izometilentramina) 2 ml/ l, Atonik (mononitroguaiacol sódico e outros compostos nitrogenados aromáticos) 0,5 ml/l e Agrostemin (alantoina + triptofano +ácido fólico + ácido glutâmico + ácido alantóico + arcialanina + outros aminoácidos) 1,25 g/l. Através dos resultados obtidos verificou-se que nenhum dos estimulantes vegetais estudados promoveu aumento em altura das plantas de pepino, embora tenham mostrado uma tendência em provocar um aumento no peso da matéria seca.


This experiment was carried out to determine the effects of Triacontanol (0.5 g/l), Ergostim (2 ml/l), Atonik (0.5 ml/l) and Agrostemmin (1.25 g/l) on growth of cucumber plants 'Hibrido Caipira AG-207'. Cucumber plants were sprayed 7 days after sowing, under greenhouse conditions. Agrostemmin reduced plant height until 20 days after sowing. Atonik reduced plant height 27 days after sowing. At 34 days after cucumber sowing, plants treated with the plant stimulants not differed in height in relation to check treatment. Agrostemmin and Ergostim increased dry matter production of the lower part of the plant. The plant stimulants does not change the dry matter production of the apical region of cucumber plants.


Ação de estimulantes vegetais no desenvolvimento de pepino (Cucumis sativus L.)

Action of plant stimulants on growth of cucumber plants (Cucumis sativus L.)

Paulo R. C. CastroI; Augusta C. C. C. MoretiII; Manoel R. Toledo FilhoII; Marcos S. BernardesII; Nivaldo L. Silva FilhoII; Otavio Peres FilhoII

IDepartamento de Botânica, E.S.A."Luiz de Queiroz", U.S.P.

IIDisciplina de Fitofisiologia Ecológica, Curso de Pós-Graduação, ESALQ/USP

RESUMO

Observou-se o efeito de quatro estimulantes vegetais no desenvolvimento de plantas de pepino 'Hibrido Caipira AG-207', em condições de casa de vegetação, tendo a semeadura sido realizada em vasos de cerâmica e as plantas pulverizadas sete dias após a semeadura, com Triacontanol (1-hidroxitriacontano) na dosagem de 0,5 g/l, Ergostim (L-cisteina e ácido fólico + izometilentramina) 2 ml/ l, Atonik (mononitroguaiacol sódico e outros compostos nitrogenados aromáticos) 0,5 ml/l e Agrostemin (alantoina + triptofano +ácido fólico + ácido glutâmico + ácido alantóico + arcialanina + outros aminoácidos) 1,25 g/l. Através dos resultados obtidos verificou-se que nenhum dos estimulantes vegetais estudados promoveu aumento em altura das plantas de pepino, embora tenham mostrado uma tendência em provocar um aumento no peso da matéria seca.

SUMMARY

This experiment was carried out to determine the effects of Triacontanol (0.5 g/l), Ergostim (2 ml/l), Atonik (0.5 ml/l) and Agrostemmin (1.25 g/l) on growth of cucumber plants 'Hibrido Caipira AG-207'. Cucumber plants were sprayed 7 days after sowing, under greenhouse conditions. Agrostemmin reduced plant height until 20 days after sowing. Atonik reduced plant height 27 days after sowing. At 34 days after cucumber sowing, plants treated with the plant stimulants not differed in height in relation to check treatment. Agrostemmin and Ergostim increased dry matter production of the lower part of the plant. The plant stimulants does not change the dry matter production of the apical region of cucumber plants.

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LITERATURA CITADA

Entregue para publicação em 24/06/87.

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Datas de Publicação

  • Publicação nesta coleção
    20 Ago 2010
  • Data do Fascículo
    1987
Universidade de São Paulo, Escola Superior de Agricultura Av.Páduas Dias, 11, C.P 9 / Piracicaba - São Paulo, Brasil, tel. (019)3429-4486, (019)3429-4401 - Piracicaba - SP - Brazil
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