Hydropriming and modified atmosphere or controlled to conserve viability cereja-da-mata seeds

Abstract

The objective was to evaluate the effect of hydropriming and conservation techniques (vacuum and biofilm) of stored seeds of cereja-da-mata (E. involucrata) for different periods. Experiment 1 was installed with experimental design of randomized blocks in a factorial 2 x 4 x 2 (pre-storage x technique hydropriming x storage time), with four replications of 50 seeds each. The extracted seeds were separated into two batches, one being subjected to the pre-hydropriming in distilled water for 24 hours and the other not. Hidrocondicionadas seeds or have not undergone four storage techniques, which are, vacuum packaging, coating cassava starch biofilm (3% w/v), vacuum + starch biofilm cassava and untreated (control). Then the seeds were kept in cold storage, in 5°C temperature for 5 and 30 days. Experiment 2 was completely randomized in a factorial 2 x 3 (environment x storage period), with four replications of 50 seeds per plot. Two conditions have tested these natural environment and under controlled temperature 6°C, the remaining seeds under these conditions for 3 times (15, 30 and 45 days). For storage of cereja-da-mata seeds should be used techniques isolated vacuum or biofilm coating. There is loss of seed viability when the water content was reduced to 39.84% and is maintained at ambient condition for more than 30 days.