Data/hora: 18/06/2024 05:07:44

Provedor de dados: | 111
País: | China
Título: | Sunflower performance according to water suppression management
Autores: | Filho, Marconi Seabra; MENEZES, ADEMIR SILVA; Sousa, Paulo Gleisson Rodrigues de; Neto, Luis Gonzaga Pinheiro; Azevedo, Benito Moreira; Viana, Thales Vinícius Araújo.
Data: | 2021-12-30
Ano: | 2021
Resumo: | Sunflower (Helianthus annuus L.) stands out as the oilseed crop with the largest expansion in the world. Thus, the objective of this study was to evaluate the most appropriate moment to suppress irrigation, without hampering the productive and quality aspects of sunflower culture. The experimental design used was the randomized blocks, with six treatments and four replicates, where the treatments were as follows: irrigation up to 45, 52, 59, 66, 73 and 80 days after sowing. At 90 days after sowing, the following variables were analyzed: mass of 1000 seeds, productivity, dry mass of the chapter and stem, oil content of the seed and water use efficiency in the production of seed and oil. For the 1000 seed mass variable, a significant effect (p &amp;lt;0.05) was observed, in which the linear model stood out with the highest R2. Sunflower productivity was noticeable, its increase relative to 10 days of suppression, obtaining 2,370.30 kg ha-1. From the results obtained in the experiment, it was possible to conclude that, when irrigation suppression occurs at any stage of the sunflower cycle, all components of crop production tend to be inhibited. The crop has the maximum water use efficiency at irrigation suppression on day 45 after sowing, therefore, contributing to a lower water consumption.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.cigrjournal.org/index.php/Ejounral/article/view/7015
Editor: | International Commission of Agricultural and Biosystems Engineering
Relação: | http://www.cigrjournal.org/index.php/Ejounral/article/view/7015/3725
Formato: | application/pdf

Fonte:

Agricultural Engineering International: CIGR Journal; Vol. 23 No. 4 (2021): CIGR Journal

1682-1130

Fonte: | Copyright (c) 2021 Agricultural Engineering International: CIGR Journal