QUALITY OF BEAN SEEDS OF SEVERAL DENSITIES OBTAINED BY GRAVITACIONAL TABLE
JUSSARA BERTHO FANTINATTI, SYLVIO LUÍS HONÓRIO E LUÍS FERNANDES RAZERA
The performance of IAC-Carioca SH bean seeds, after they have been submitted to
the classification processes by sieves and separation by density in the gravitational table, were
evaluated in relation to the physiologic and sanitary quality of the seeds, contained in three fractions
of discharge of the gravitational table. The vigor test was not influenced by the size of the seed and
its acting is related to the degree of humidity. Higher density seeds could be stored for twelve
months with small loss of their germination percentage without compromising the stand. Seeds of
medium density retained in the sieves 10, 12 and 13 and stored until the tenth month can be used
as seed. Seeds with lower density, are not recommended for planting and they present larger index
of contamination by field fungi. Seed contamination by storage fungi Aspergillus spp. and
Penicillium spp., was directly related to the relative humidity of the storage facility.
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