Data/hora: 06/06/2024 13:49:41

Biblioteca(s): | Embrapa Unidades Centrais.
Data corrente: | 21/12/2017
Data da última atualização: | 21/12/2017
Autoria: | LEOLATO, L. S.; SANGOI, L.; DURLI, M. M.; PANISON, F.; VOSS, R.
Afiliação: | Lucieli Santini Leolato, Universidade do Estado de Santa Catarina - UDESC; Luis Sangoi, Universidade do Estado de Santa Catarina - UNESC; Murilo Miguel Durli, Universidade do Estado de Santa Catarina - UNESC; Fernando Panison, Universidade do Estado de Santa Catarina - UNESC; Ramon Voss, Universidade Estadual de Santa Catarina - UNESC.
Título: | Growth regulator and maize response to the increase in plant density.
Ano de publicação: | 2017
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília, DF, v. 52, n, 11, p. 997-1005, novembro 2017.
Idioma: | Inglês
Notas: | Título em português: Regulador de crescimento e resposta do milho ao aumento na densidade de plantas.
Conteúdo: | The objective of this work was to evaluate the effect of application of the growth regulator Trinexapac-ethyl on maize response to the increase in plant density at two sowing dates. A field experiment was carried out in the municipality of Lages, state of Santa Catarina, Brazil, during the 2014/2015 and 2015/2016 growing seasons. Two sowing dates (10/15 ? preferential, and 12/5 ? late), four plant densities (5, 7, 9, and 11 plants m-2), with and without Trinexapac-ethyl application, were tested. The growth regulator was sprayed at a rate of 150 g a.i. ha-1, when hybrid P30F53YH was at the V5 and V10 growth stages. The spraying of Trinexapac-ethyl decreased the stem length above the ear insertion node at both growing seasons. Grain yield ranged from 11,422 to 14,805 kg ha-1, and increased in a quadratic way with the increment in plant density. The highest yields were reached when maize was sown in October. The spraying of Trinexapac-ethyl did not affect grain yield, but decreased the 1,000 kernels mass at both sowing dates. The use of Trinexapac-ethyl does not enhance grain yield of maize hybrid P30F53YH at crowded stands in response to the densification, regardless of sowing time.
Palavras-Chave: | Rendimento de grãos; Trinexapac-ethyl; Trinexapac-etil.
Thesagro: | Milho; Semeadura; Zea Mays.
Thesaurus Nal: | Grain yield.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/169525/1/Growth-regulator-and-maize-response.pdf
Registro original: | Embrapa Unidades Centrais (AI-SEDE)
Exemplares: | AI-SEDE - (62075-1) - UPE - AP - PP - 630.72081 - P474 -  - DIS