Coffee Science
URI permanente desta seção${dspace.url}/handle/123456789/3355
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Item New orthotropic stems induction in arabica coffee by pruning and biostimulant application(Editora UFLA, 2024-11-11) Honda Filho, Cássio Pereira; Coelho, Larissa Sousa; Andrade, Otavio Vitor Souza; Godinho, Emmanuel ZulloPruning are techniques used to renew a coffee tree and promote the growth of a more vigorous plant. Allied to that, the use of biostimulants can help the boost growth and development of the new produced stems. The objective of the present work was to evaluate whether the presence of plagiotropic branches in coffee trees pruned by low pruning and the application of biostimulant would influence the production, growth and vigor of new orthotopic branches in Coffea arabica. The experiment consisted of 10 treatments, arranged in a randomized block design with a 2x5 factorial: two pruning methods (low pruning with and without plagiotropic branches) and five doses of Stimulate® (0, 100, 200, 400 and 800 mL). The traits evaluated were vigor of the orthotropic branches produced vigor, orthotropic branches length, number of orthotropic branches orthotropic and orthotropic branches diameter. The use of low pruning with remaining plagiotropic stems combined with the use of biostimulants at a dose of 400 mL induces the production of vigorous orthotropic stems in Arabica coffee trees.Item Development of coffee seedlings with biostimulants(Editora UFLA, 2021) Moreira, Wanderson Lopes; Ferraz-Almeida, RiselySustainable coffee production has become an alternative to aggregate value to coffee. Biostimulants are presented to increasing coffee quality and production. This study aims to compare and evaluate the application of biostimulants in the initial development of coffee seedlings. An experiment was carried out with applications of biostimulants: (i) 4-indole-3-ylbutyric acid + gibberellic acid + cinetina, AIA+AG+C; (ii) foliar fertilizer + algae, F+A; (iii) vegetal extracts + gibberellic acid, EV+AA. After 94 days of applying the biostimulants, monitored the length of the aerial part (LAP), the number of leaves (NL), stem diameter, root biomass (pivoting, auxiliary and total). Results showed that the F+A promoted the greatest LAP, NL, and root biomass. AIA+AG+C showed similar performance as F+A in NL. There was a higher production of auxiliary roots with biostimulants impacting positively on plant paraments. Given the results, we concluded that biostimulants based on mixed foliar fertilizer + algae demonstrated to be a better alternative to increasing the devel opment of the aerial and root part of coffee seedlings.