02095naa a2200289 a 450000100080000000500110000800800410001902400420006010000280010224501310013026000090026152012020027065000210147265000200149365000170151365000220153065300170155265300200156965300170158965300210160665300270162765300330165470000200168770000210170770000190172877300580174721131462019-10-16       2019    bl uuuu     u00u1 u    #d7 a10.4025/actasciagron.v41i1.395742DOI1 aGRZYBOWSKI, C. R. de S.  aProcessing and physical and physiological quality of the native forest seeds of Vernonanthura discolor.h[electronic resource]  c2019  aThe objective was to study the processing of Vernonanthura discolor seeds, evaluating their physical and physiological qualities and defining parameters for purity analysis and determine the weight of one thousand seeds. The seeds extracted from the infructescences were processed in a blower, testing combinations of openings of the calibration valve and the side air passage. After processing, the seeds went through water content determination, germination tests, first count of the germination test, purity analysis, weight of one thousand seeds and percentage of full seeds. Compared to the control, seeds processed in a regulated blower with the calibrator valve in position 10 plus three 360° turns of side air passage obtained an approximately three-fold increase in germination and vigour and had 96% purity. We conclude that the processing of V. discolor seeds was best done by combining the rubbing of the seeds on circular sieves (1.8 and 1.6 mm in diameter) and then passage in an adjusted seed blower (calibration valve in position 10 plus three 360° turns of side air passage). The weight of one thousand seeds is 0.500 g, and the working sample for purity analysis must be 1.3 g.  aSeed germination  aEspécie Nativa  aGerminação  aSemente Florestal  aPost-harvest  aPurity analysis  aSeeds blower  aVassourão preto  aVernonanthura discolor  aWeight of one thousand seeds1 aSILVA, R. C. da1 aVIEIRA, E. S. N.1 aPANOBIANCO, M.  tActa Scientiarum. Agronomygv. 41, e39574, 2019. 8 p.