Nutritional efficiency in the passion fruits seedling production as a result of the phosphorus concentrations in nutritive solution

• Autor(a) principal: Silva, João Vítor Garcia
• Data de Publicação: 2021
• Outros Autores: Longue, Lana Lirio, Jardim, Adriele dos Santos, Pinheiro, Ana Paula Braido, Rosa, Rayane, Pagoto, André Lucas Reboli, Azeredo, André Luiz Ribeiro, Arantes, Sara Dousseau, Fernandes, Adriano Alves
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Research, Society and Development
• Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/13988
• topic: Passiflora edulis Sims; Qualidade de muda; Rochas fosfáticas; Hidroponia.; Passiflora edulis Sims; Calidad de plântula; Rocas de fosfato; Hidroponia.; Passiflora edulis Sims; Seedling quality; Phosphate rocks; Soilless culture.

The objective of the work was to evaluate the production of sour passion fruit seedlings propagated by seeds in hydroponic cultivation and associateds with phosphorus use efficiency. The experiment was carried out in a greenhouse at the experimental farm of the Centro Universitário Norte do Espírito Santo. The experimental design used was in randomized blocks with five replications. The treatments consisted of phosphorus concentrations of 0.032; 0.125; 0.500 and 1,000 mmol.L-1. Each plot was composed of 5 plants arranged in the cultivation pipes. The characteristics analyzed were plant height, stem diameter, number of leaves, fresh shoot weight, fresh root weight, dry shoot weight, dry root weight, root volume, leaf area, quality index of Dickson (IQD) and chemical analysis of the aerial part and roots to calculate the absorption, translocation and use of phosphorus efficiency. The data were subjected to analysis of variance by the F test (p <0.05) and regression analysis, using the statistical software R. Data analysis concluded that the production of sour passion fruit from seeds can be accomplished as the use of 0.784 mmol.L-1 phosphorus in the nutrient solution, allowing to achieve relative efficiencies of absorption and translocation of nutrient 98.17% and 95.65%, respectively. The use of this concentration provides savings of about 22% of the nutrient in relation to the original concentration value of the used nutrient solution.