Conservação de sementes de pitangueira voltada ao produtor

Abstract

Eugenia uniflora has a natural occurrence in Brazil and produces fruits with great potencial in the industry. Highly recalcitrant seeds of short longevity make it difficult to propagate this species, requiring studies that allow it to remain viable for longer periods. The objective of this work was to test the viability of pitangueira seeds according to stage of maturation of the fruit in the collection and temperature, time and use of modified atmosphere type during amazement. The work was carried out in rural property, in the municipality of São Jorge D´Oeste Paraná. Seedling (Eugenia uniflora L) seeds were used, whose fruits were collected at maturation stage matured in the plant and overmatures, being on the soil. The experimental design was in a randomized block, in a 2 x 6 x factorial (maturation stage x modified atmosphere x storage time), with four replications, using 50 seeds per experimental unit. In the modified atmosphere factor, the storage site with the type of packaging was added, where seeds were kept in two conditions, natural or refrigerated (± 5 °C), but both varied in the package, in which the transparente plastic, in PET® and solidified lard. The fruits with the seeds were sotred undeer such conditions 0, 30, 60, 90 and 120 days. The percentage of emergence, number of leaves per seedlings, total length, root and shoot length, and mass of the total dry matter of the seedlings were evaluated. The producer can store his pangarope seeds on his property, but must be kept in the refrigerator for a maximum of 30 days and preferably in a plastic bag or PET®. .