A bananicultura apresenta grande importância socioeconômica para o Brasil, gerando vários empregos diretos e indiretos. Objetivou-se avaliar a influência das adubações com nitrogênio e potássio no crescimento vegetativo da bananeira ‘BRS Vitória’. O trabalho foi realizado no setor de agricultura do Centro de Ciências Humanas, Sociais e Agrárias da Universidade Federal da Paraíba, município de Bananeiras, estado da Paraíba, Brasil. O delineamento experimental foi em blocos casualizados, com quatro repetições, sendo os tratamentos dispostos em esquema fatorial conforme a matriz Plan Plueba III, com cinco doses de N (15, 90; 150; 210 e 285 g por planta) e cinco doses de K2O (24; 144; 240; 336 e 456 g por planta). Nas análises de crescimento foram avaliadas altura do pseudocaule, diâmetro do pseudocaule e taxas de crescimento absoluto da altura e do diâmetro do pseudocaule. A dose de 133,3 g por planta de nitrogênio proporcionou altura máxima de 3,7 m para a bananeira ‘BRS Vitória’ no lançamento da inflorescência. Recomenda-se utilizar a combinação das doses de 200 g por planta de nitrogênio e 312,5 g por planta de potássio, para maior crescimento vegetativo da bananeira ‘BRS Vitória’.
The aim of this research was to evaluate the influence of 1methylcyclopropene (1-MCP) and modified atmosphere packaging on the maturation of banana cultivar 'Prata' harvested in the maturation stage 1. Banana hands were treated at room temperature with 0 and 60 ppb 1-MCP in sealed plastic chambers of 0.19 m 3 , during 24 hours. Following the exposition to 1-MCP, a set of three fruits were packed in polystyrene trays and packed using Xtend TM film (Stepac, L. A., Israel) for modified atmosphere generation and kept under ambient (AA) and modified atmospheres (MA) at 15°C and 90±2% of Relative Humidity and room temperature (23±2°C and 85±2% RH). At each evaluation period, three replications (1 set of three fruit/rep) from each treatment were used. 1-MCP application delayed the onset of respiratory peak, also maintained fruit gloss and retarded the increase in the a* and b* values, which is a result of the also delayed transition from the green to the yellow skin color. However, the development of the skin yellow color was very irregular at 15°C storage. On the other hand, 1-MCP treatment resulted in a more intense skin yellow color development for fruits kept at room temperature.
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