Lodging reduction in white oat using the plant growth regulator trinexapac-ethyl
| العنوان: | Lodging reduction in white oat using the plant growth regulator trinexapac-ethyl |
|---|---|
| المؤلفون: | Julhana Cristina Sponchiado, Fernando José Hawerroth, Maraisa Crestani Hawerroth, Clovis Arruda Souza, Antonio Costa de Oliveira, Cristiano Mathias Zimmer, José Antonio Gonzalez da Silva, Jordana Schiavo, Henrique de Souza Luche |
| المصدر: | Pesquisa Agropecuária Brasileira, Volume: 50, Issue: 2, Pages: 115-125, Published: FEB 2015 Pesquisa Agropecuária Brasileira, Vol 50, Iss 2, Pp 115-125 (2015) Pesquisa Agropecuária Brasileira v.50 n.2 2015 Pesquisa Agropecuária Brasileira Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
| بيانات النشر: | Embrapa Informação Tecnológica, 2015. |
| سنة النشر: | 2015 |
| مصطلحات موضوعية: | Plant growth, gibberellin biosynthesis, Crop yield, Avena sativa, Growth regulator, Biology, grain yield, lcsh:S1-972, Trinexapac-ethyl, altura de planta, plant height, Crop, Nitrogen fertilizer, Agronomy, Grain yield, Animal Science and Zoology, Cultivar, lcsh:Agriculture (General), biossíntese de giberelinas, Agronomy and Crop Science, produtividade de grãos |
| الوصف: | O objetivo deste trabalho foi avaliar os efeitos da aplicação de concentrações do regulador de crescimento etil-trinexapac na altura de planta, no acamamento e na produtividade de grãos da cultivar de aveia-branca Barbarasul, em diferentes ambientes de cultivo e doses de nitrogênio. Os experimentos foram conduzidos nas safras 2010 e 2011 nos municípios de Capão do Leão e Augusto Pestana, no Estado do Rio Grande do Sul, e nas safras 2010 e 2012 no Município de Lages, no Estado de Santa Catarina. Utilizou-se o delineamento de blocos ao acaso, em arranjo fatorial 4x2x6 (dose de etil-trinexapac, estádio de desenvolvimento da planta e ambiente), com quatro repetições constituídas por parcelas úteis de 3,0 m2. Em cada ambiente, realizou-se adubação nitrogenada com 30 e 90 kg ha-1 de N. Foram avaliados os caracteres altura de planta, percentagem de acamamento e produtividade de grãos. A aplicação do regulador de crescimento etil-trinexapac nas doses de 100 a 150 g i.a. ha-1 em plantas de aveia-branca 'Barbarasul', nos estádios E31 e E32, reduz a altura das plantas e a percentagem de acamamento, sem prejuízos à produtividade de grãos. A intensidade da redução do acamamento depende das características do ambiente de cultivo. The objective of this work was to evaluate the effects of the application of doses of the plant growth regulator trinexapac-ethyl on plant height, lodging index, and grain yield of the white oat cultivar Barbarasul at different cultivation environments and nitrogen doses. The experiments were conducted in the 2010 and 2011 crop seasons in the municipalities of Capão do Leão and Augusto Pestana, in the state of Rio Grande do Sul, and in the 2010 and 2012 crop seasons in the municipality of Lages, in the state of Santa Catarina, Brazil. A randomized complete block design was used, in a 4x2x6 factorial arrangement (dose of trinexapac-ethyl, development stage, and environment), with four replicates consisting of 3.0 m2 plots. In each environment, nitrogen fertilization was done with 30 and 90 kg ha-1 N. The evaluated traits were plant height, lodging index percentage, and grain yield. The application of the growth regulator trinexapac-ethyl, at the doses of 100 to 150 g a.i. ha-1 in 'Barbarasul' white oat plants, in the E31 and E32 development stages, reduces plant height and the percentage of lodging, without harming grain yield. The intensity of the reduction in lodging depends on the conditions of the cultivation environment. |
| وصف الملف: | text/html |
| اللغة: | Portuguese |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f35a8effee1e4ea300237f5fceb37b1e http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015000200115&lng=en&tlng=en |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....f35a8effee1e4ea300237f5fceb37b1e |
| قاعدة البيانات: | OpenAIRE |
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The objective of this work was to evaluate the effects of the application of doses of the plant growth regulator trinexapac-ethyl on plant height, lodging index, and grain yield of the white oat cultivar Barbarasul at different cultivation environments and nitrogen doses. The experiments were conducted in the 2010 and 2011 crop seasons in the municipalities of Capão do Leão and Augusto Pestana, in the state of Rio Grande do Sul, and in the 2010 and 2012 crop seasons in the municipality of Lages, in the state of Santa Catarina, Brazil. A randomized complete block design was used, in a 4x2x6 factorial arrangement (dose of trinexapac-ethyl, development stage, and environment), with four replicates consisting of 3.0 m2 plots. In each environment, nitrogen fertilization was done with 30 and 90 kg ha-1 N. The evaluated traits were plant height, lodging index percentage, and grain yield. The application of the growth regulator trinexapac-ethyl, at the doses of 100 to 150 g a.i. ha-1 in 'Barbarasul' white oat plants, in the E31 and E32 development stages, reduces plant height and the percentage of lodging, without harming grain yield. 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