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Brazil is the world's largest sweet orange producer, but production in the state of Acre is small and does not meet the local demand, despite having climatic conditions that are adequate for its cultivation. The objective of this study was to evaluate the behavior of the 'Pera' orange using different rootstocks under the edaphoclimatic conditions of Rio Branco, Acre, Brazil. We grafted the scion of the 'Pera' orange onto nine citrus rootstocks: 'Cleopatra' mandarin, TSKFL x CTTR - 013, LVK x LCR - 038, TSKC x CTQT 1439 - 004, LVK x LVA - 009, 'Indio'citrandarin, 'Santa Cruz Rangpur' lime, TSKFL x CTC - 25 - 002, and TSKC x CTSW - 038. The experiment was organized in a random block design with three replicates and two plants per parcel. The following characteristics were evaluated: compatibility between scion and rootstocks, tolerance to drought, production and fruit quality. There was an effect of the rootstocks on the behavior of the 'Pera' variety. The 'Santa Cruz Rangpur' lime, 'Indio' citrandarin, and the hybrid LVK x LCR - 038 rootstocks presented the best performance of the 'Pera' orange. Therefore, they constitute an alternative to the 'Rangpur' lime and may be incorporated into the current 'Pera' orange production system of the region. [ABSTRACT FROM AUTHOR]

Yellow passion fruit is a fruit species economically important for Brazil, specially consumed as juice, ice cream and compotes that makes fruit quality more relevant. Thus, the present study was developed aiming to evaluate the physical and chemical characteristics of yellow passion fruit as a function of biofertilizer, liming and NK fertilizing in Bom Jesus County, Piaui State, Brazil.Theexperimental design wasrandomized blocks withfactorial 2 x 2 x 3 referring to liming(soilwith and withoutliming), biofertilizers (without bioferilizer, simple biofertilizer and enriched biofertilizer) and mineral fertilizer(50 and100% forNK recommendation) with four repetitions and two plants per parcel. The following variables were recorded: fruit width (FW), fruit length (FL), skin diameter, seed number, fruit mass, pulp percentage, soluble solids (SS), titratable acidity (TA) and pH. Fruit quality related to FW, FL, skin diameter, seed number, fruit mass, pulp percentage, SS, TA and pH is increased by bovine biofertilizer. The use of bovine biofertilizer associated to 50% of NK recommendation may substitute the complete NK fertilizing. [ABSTRACT FROM AUTHOR]