DESEMPENHO AGRONÔMICO DA CULTURA DO MILHO A PARTIR DO USO DE SEMENTES QUIMICAMENTE TRATADAS COM FUNGICIDAS E INSETICIDAS E SUBMETIDAS A DIFERENTES CONDIÇÕES DE ARMAZENAMENTO
DOI:
https://doi.org/10.18512/1980-6477/rbms.v18n1p112-122Keywords:
Zea mays, Vigor de sementes, Tratamento industrial.Abstract
RESUMO - A fim de maximizar a eficiência no processo industrial, armazenar as sementes já tratadas com fungicidas
e inseticidas é de grande importância. Porém, pouco se sabe sobre o resultado desta prática. Objetivou-se avaliar o
efeito do tratamento químico de sementes de híbridos de milho de diferentes tamanhos, com fungicidas e inseticidas,
submetidas a diferentes condições de armazenamento, sobre o desempenho da cultura em campo. Sementes dos
híbridos 2B647PW, BM915 PRO e SHS4070, de formato chato (CH) e classificadas em dois tamanhos (CH20/64
e CH24/64) foram tratadas com a mistura de Carbendazim + Tiram (Derosal Plus®), Deltametrina (Actellic®),
Pirimifós metílico (K-obiol®) e água [tratamento padrão]. Além do tratamento padrão foram acrescentados à mistura
da calda tratamentos com clotianidina (Poncho®); tiametoxam (Cruizer®) e fipronil (Shelter®). Após tratadas, as
sementes foram submetidas a três condições de armazenamento antes de serem semeadas no verão e quatro condições
de armazenamento para o plantio de outono. Concluiu-se que os tratamentos químicos e as diferentes condições
de armazenamento não interferem na produtividade dos híbridos de milho 2B647 PW, BM915 PRO e SHS4070,
independentemente do tamanho das sementes e da época de semeadura.
Palavras-chave: Zea Mays, vigor de sementes, conservação, tratamento sanitário, tratamento industrial.
AGRONOMIC PERFORMANCE OF CORN CROP BY THE USE
OF CHEMICALLY TREATED AND STORED SEEDS
ABSTRACT - In order to maximize the efficiency of the industrial process, storing the seeds already treated with
fungicides and insecticides is very important. However, little is known about the outcome of this practice. The objective
of this study was to evaluate the effect of the treatment of seeds of corn hybrids of different sizes with fungicides
and insecticides and subjected to different storage conditions, on the performance of the crop at field. Seeds of the
2B647PW, BM915 PRO and SHS4070 hybrids were classified in two sizes (CH20 / 64 and CH24 / 64) and were
treated with Carbendazim + Tiram (Derosal Plus®), Deltametrin (Actellic® ), Pirimiphos methyl (K-obiol®) and
water [standard treatment]. In addition to the standard treatment, treatments with clothianidin (Poncho®) were added
to the syrup mixture; thiamethoxam (Cruizer®) and fipronil (Shelter®). After being treated the seeds were subjected
to three storage conditions before sowing in the summer and four storage conditions for the autumn planting. As
conclusion,,the chemical treatments and different storage conditions did not interfere in the productivity of hybrids of
maize 2B647 PW, BM915 PRO and SHS4070, regardless of seed size and sowing time.
Keywords: Zea mays, seed vigor, conservation, sanitary treatment, industrial treatment.
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