Título:	Modification of canola cultivation conditions in a waterlogging-susceptible subtropical environment.
Autoria:	SCHAEFER, P. E. NIED, A. H. HELDWEIN, A. B. DALMAGO, G. A. PAPPIS, A. C. GOUVEA, J. A. de
Afiliação:	PAULO EUGÊNIO SCHAEFER, Universidade Federal de Santa Maria; ASTOR HENRIQUE NIED, Universidade Federal de Santa Maria; ARNO BERNARDO HELDWEIN, Universidade Federal de Santa Maria; GENEI ANTONIO DALMAGO, CNPT; ANTONIO CARLOS PAPPIS, Universidade Federal de Santa Maria; JORGE ALBERTO DE GOUVEA, CNPT.
Ano de publicação:	2023
Referência:	Acta Scientiarum. Agronomy, v. 45, 2023.
Conteúdo:	Abstract: Waterlogging directly interferes with the production capacity of agricultural crops in response to the morphophysiological changes caused to plants. Since the cultivation of poorly drained soils is traditionally avoided, this study aimed to evaluate the possibility of expanding canola cultivation into waterlogged soils using soil surface drainage and different row spacings in lowland areas of Rio Grande do Sul, Brazil. Treatments consisted of the presence and absence of surface drains at 0.25 m depth and row spacings of 0.17, 0.34, 0.51, and 0.68 m arranged in two-factorial randomized blocks with four replications, in 2018 and 2019. In this study, growth traits, yield components, and the final grain yield of canola were evaluated. The increase in lateral branching in canola plants was found to be directly related to waterlogging and negatively affected yield. The use of drains positively impacted the number of pods per plant, seeds per pod, the 1,000 seeds weight, and grain yield. The more intense waterlogging conditions in 2018 resulted in the highest grain yield and superior production traits were obtained with row spacings between 0.41 and 0.48 m. In the absence of waterlogging, the 0.17 m row spacing was more productive. Canola cultivation can occur in waterlogged soils in the presence of surface drainage and at row spacings ranging from 0.40 to 0.50 m.
Thesagro:	Planície Lençol Freático Drenagem
NAL Thesaurus:	Drainage Row spacing Water table Lowlands Grain yield
Palavras-chave:	Cultivo de canola Espaçamento entre linhas Rendimento de grãos
Digital Object Identifier:	https://doi.org/10.4025/actasciagron.v45i1.61434
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPT)