Substrates and containers for the development of Brassica pekinensis L. seedlings
| Autor: | Cícera Vanuza Viana Xavier, Hozano de Souza Lemos Neto, Lydio Luciano de Gois Ribeiro Dantas, Marcelo de Almeida Guimarães, Roberto Jun Takane, Rebeca de Araújo Torres |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Materials Science (miscellaneous) evaluation dates engineering.material 01 natural sciences Dry weight Botany Transplanting lcsh:Agriculture (General) biology Compost Sowing 04 agricultural and veterinary sciences Factorial experiment earthworm casting biology.organism_classification lcsh:S1-972 Humus cell size Horticulture Seedling Shoot 040103 agronomy & agriculture engineering 0401 agriculture forestry and fisheries General Agricultural and Biological Sciences 010606 plant biology & botany |
| Zdroj: | Bragantia, Iss 0 (2016) Bragantia, Volume: 75, Issue: 3, Pages: 344-350, Published: 06 MAY 2016 Bragantia v.75 n.3 2016 Bragantia Instituto Agronômico de Campinas (IAC) instacron:IAC |
| ISSN: | 1678-4499 0006-8705 |
| DOI: | 10.1590/1678-4499.439 |
| Popis: | The aim of this study was to evaluate the development of Chinguensai (Brassica pekinensis L.) seedlings, under different formulations of substrates and sizes of containers, in Fortaleza, Ceará. For this, two studies were conducted in factorial design with randomized blocks and four replicates. The first study was conducted in a factorial (4 × 4) design. Four substrate formulations (powder-type coconut fiber; carbonized rice hull and earthworm casting) had the following proportions: S1 (1:1:1); S2 (0:1:1); S3 (1:0:1); and S4 (0:0:1) by volume basis (v/v) and four evaluation dates (22, 27, 34 and 41 days after sowing — DAS). The second study was conducted in a factorial (3 × 4) design with three types of containers with different cell volumes (31, 18 and 11 cm3) and four evaluation dates (22, 27, 34 and 41 DAS). The fresh and dry weight of the shoot and root systems was evaluated. Both studies showed no interaction between the variables, with differences noted for substrate factors, containers and times in all traits. In the first study, the earthworm compost resulted in the highest yield of fresh and dry seedling weight. In the second study, the container with 31 cm3 of cell volume showed the highest production of fresh and dry weights. The results showed that the substrate composed solely of earthworm humus and with the use of trays with 31 cm3 of cell volume provided seedlings of Chinguensai with the optimal production for transplanting 41 DAS. |
| Databáze: | OpenAIRE |
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