Containers and seeding densities paired with time in the production of jambu seedlings

• Autor(a) principal: Sampaio, Italo Marlone Gomes
• Data de Publicação: 2019
• Outros Autores: Guimarães, Marcelo de Almeida, Lemos Neto, Hozano de Souza, Maia, Celly de Lima, Viana, Car´ís dos Santos, Gusmão, Sérgio Antonio Lopes de
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Revista de Ciências Agrárias (Belém. Online)
• Texto Completo: https://ajaes.ufra.edu.br/index.php/ajaes/article/view/2996
• topic: Acmella oleracea (L.) R. K. Jansen; Dickson quality index; Polyethylene trays; Acmella oleracea (L.) R. K. Jansen; Índice de qualidade de Dickson; Bandeja de polietileno; Acmella oleracea (L.) R. K. Jansen

Jambu production has significant importance in the culinary and popular medicine of the northern region of Brazil. Despite the above, the species still faces problems related to the determination of basic phytotechnical aspects for its production. The objective of this study was to investigate the quality of jambu seedlings produced in containers with different volumes and seeding densities over time. For this, two simultaneous tests were set up in a protected environment. Block design was used in a factorial scheme for both tests. For the first test, the evaluated factors were two containers (162 and 200 cell tray) at four evaluation dates (10, 15, 20 and 25 days after sowing). For the second test, three sowing densities (two, four and six cell plants-1) were evaluated at four dates (10, 15, 20 and 25 days after sowing). The evaluated characteristics were: length of the aerial part, root length, total plant length, collection diameter, fresh shoot and root mass, dry mass of the aerial part and of the root system, percentage of survival on the fith and tenth day after transplanting, and the Dickson quality index. The tray of 162 cells was the one that allowed the best conditions for the growth, development and quality of jambu seedlings. Considering the individual values obtained for each characteristic of the plants evaluated for the different densities tested, the density of two cell-1 seedlings was the one that allowed to obtain the best individual results per plant.