Influência da técnica de quebra de dormência, substrato e tamanho da semente na germinação do taperebá (Spondias mombin) procedentes de duas populações nativas da Amazônia

Abstract

Spondias Mombin (Tapereba) is a fruit species of the Amazon, can be found in the areas of land signatures, common in inhabited places. The fruit has great potential for these regions, both from the point of view of its industrial use, and through its "in natura" consumption. However, some phytomic problems persist, among which the germination is irregular and distributed over time. The objective of this research is to evaluate the influence of the technique of dormancy breakage, substrate and seed size on the germination of Taperebá from two native Amazonian populations. The work was developed in a greenhouse of the Institute of Exact Sciences and Technology (ICET) – UFAM, in the municipality of Itacoatiara, Amazonas. Fruit sampling was performed in two different localities of native populations. From each sampling site, 100 fruits were used, being divided into four samples to perform morpho-agronomic characterization, determining weight, diameter, fruit length, peel weight without pulp, percentage of pulp, moisture content, diameter Seed, length and weight of the seed. A randomized block experimental design was used in a 4x2x2 factorial scheme, totaling 16 treatments per collection site. The factors studied were: breaking of dormancy (distal cut, temperature at 100oC/5 minutes, temperature at 50oC/5 minutes, control), substrate (sand and land of the forest + manure + ash) and size of the endocarp (large and small).