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- Title
Development of cauliflower seedlings due to the increase of silicon in substrate.
- Authors
Soares Wenneck, Gustavo; Saath, Reni; Rezende, Roberto; Santi, Danilo Cesar; Barion Andrean, André Felipe; Leite de Araújo, Larissa; de Oliveira Sá, Nathália
- Abstract
The production of seedlings is an important step in the establishment of the crop, with repercussions on yield, whose application of Si can improve phytosanitary and performance characteristics. The objective of the study was to analyze the increase of silicon in substrate on the development of seedlings of Brassica oleracea var. botrytis. The experiment carried out in randomized blocks, with five amounts of silicon (0, 25, 50, 75 and 100 g kg-1 of substrate) and four replications. Silicon oxide (98% SiO2) used, mixed with the substrate with subsequent filling of the polyethylene trays (128 cells) and seeding. The trays kept in a greenhouse. At 30 days after sowing, the height of seedlings, number of leaves, fresh weight of leaves and stem, dry weight of leaves, stem and root evaluated. The data subjected to analysis of variance by the F test and regression analysis. Of the variables analyzed, only the dry root mass did not show a significant difference. Quadratic models can represent the variation in components. Seedling height increased with the increase of silicon up to the dose of 75 g kg-1. Other variables showed increases up to a dose of 50 g kg-1. The increase of silicon in the substrate was efficient in the development of seedlings of Brassica oleracea var. botrytis in an amount of up to 50 g kg-1 of substrate.
- Subjects
CAULIFLOWER; COLE crops; SEEDLINGS; SILICON; SILICON oxide; REGRESSION analysis
- Publication
Colloquium Agrariae, 2021, Vol 17, Issue 1, p18
- ISSN
1809-8215
- Publication type
Article
- DOI
10.5747/ca.2021.v17.n1.a416