FUNGICIDE TREATMENT, INCIDENCE OF FUNGUS AND MOMENT OF THE GERMINATION TEST AFTER THE ACCELERATED AGING IN PEANUT SEEDS
CLAUDIA ANTONIA VIEIRA ROSSETTO, CARINA ALVES BASSIN, MARGARIDA GORÉTE FERREIRA CARMOE JOÃO NAKAGAWA
The purpose of the research were to evaluated the fungicide treatment, fungus
incidence and the germination test moment after the accelerated aging in peanut seeds. For this, it
was evaluated four peanut (Arachis hypogaea L.) seed lots represented by cultivars: Caiapó, Tatu,
Tatuí, Botutatu. Each lot was divided in two seed samples, an original and other that was treated
with fungicide thiram. Initial seed quality was evaluated through water content, seed health,
germination and vigor (first germination countest and accelerated aging). Before the installation
of the accelerating aging test, immediately after the end of the aging period and after 24 hours
under laboratory conditions, the seeds were submitted to the germination test, computing the
percentage of normal seedlings at the first count and the total at the end of the test, as well as water
content test and seed health. The results allowed to conclude that the accelerated aging test in
peanut, associating seed health causes in their results, introduces limitations for the seed vigor
estimation; Aspergillus spp. and Rhizopus spp. impaired the seeds germination at the accelerated
aging test. The germination test of treated seeds can be evaluated after 24 hours under laboratory
conditions.
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