Curva de embebição para sementes de chicória da Amazônia (Eryngium foetidum L.)

Abstract

The chicory (Eryngium foetidum L.) belonging to the family Apiaceae, is a very consumed vegetable in the northern region of Brazil, however it lacks research related to the germination process. Therefore, this work aimed to determine the soaking curve for Amazonian chicory. For this, the species was cultivated in protected environment, to obtain seeds, and later assembly of the experiment of the embedding curve. A batch obtained in May 2017 was used. The test was carried out in the UFRA / Capanema multidisciplinary laboratory. The seeds were homogenized and the water content was determined by the greenhouse method at 105 ± 3 ° for 24 hours, with two replicates of 100 seeds. The curve was elaborated from four replicates of 100 seeds placed to be soaked in a gerbox type box, having as substratum three sheets of germitest paper, saturated with distilled water. Then, destined for germination chamber type B.O.D., at a constant temperature of 27 ° C and relative humidity at 80%. The curve was determined by weighing at systematized intervals until protrusion of the primary root of at least 50% of the seeds. A rapid absorption of water by the seeds was observed in the first six hours of imbibition, characterizing the end of phase I at 144 hours, phase II being in the range of 144 to 288 hours and phase III characterized with emission of the radicle at 336 hours of soaking. From the results obtained, we have that the Amazonian chicory presented a three-phase pattern in its imbibition process.