DETERMINATION OF INHIBITORS, DORMANCY BREAKING AND SEED HEALTH IN CUTIEIRA

Abstract

The objective of this work was to verify the presence of inhibitors of germination and vigor in different parts of the seed of Cutieira. Secondly, we evaluate the effects of the methods for breaking dormancy, as well as to identify and quantify the microflora in Cutieira seeds. In the preliminary phase of the research, using lettuce seeds as an indicator of inhibitors and aqueous extract of seed coat, film, tissue reserves, cotyledon and embryo axis of Cutieira seeds. It was evidenced the presence of inhibitors primarily in tissues of the embryonic axis and cotyledons. In a second stage of the research, in finding overcomes Cutieira seed dormancy, fruits of Cutieira were collected and separated into freshly harvested fruits and remnants. The experimental design was completely randomized, factorial 2 x 5, with two types of seed from freshly harvested fruits and remnants and five pre-germination treatments. The seed coat removal promotes increased germination and seed vigor derived from harvested fruits. Fungi identified in the cutieira seeds were Aspergillus niger, Aspergillus flavus, Penicillium sp. and Rhizopus sp.