qualidade fisiológica de sementes de milho tratadas associadas a polímeros durante o armazenamento performance of corn seeds treated with furazin and maxin in association with polimers, during storage
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ID: 164069
2005
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Abstract
O uso de produtos fitossanitários aplicados via sementes é uma prática rotineira para a cultura do milho. No entanto, a crescente preocupação com o meio ambiente e com a segurança humana torna necessário o desenvolvimento de tecnologias que venham reduzir os riscos com a manipulação destes fitoprotetores, sendo este um dos principais objetivos do uso de polímeros. Assim, com este trabalho, objetivou-se avaliar a qualidade fisiológica e sanitária de sementes de milho submetidas a tratamentos fitossanitários em associação com diferentes polímeros, durante o armazenamento. Para tanto, as sementes de milho dos híbridos AG9010 e AG122 foram tratadas ou não com inseticida carbofuran (nome comercial: Furazin) na dosagem de 1,5 L/100 kg de sementes e em mistura com o fungicida fludioxonil (nome comercial: Maxin) na dosagem de 100 mL/100 kg de sementes. Durante o tratamento das sementes foram utilizados ou não os polímeros 1519 na dosagem de 50 mL/100 kg de sementes e 1080 na dosagem de 100 mL/100 kg de sementes. As sementes foram acondicionadas em embalagens de papel multifoliado e armazenadas durante seis meses sob condições ambientais. A qualidade das sementes foi avaliada antes e após o armazenamento, por meio das seguintes determinações: teste de germinação, teste de frio, teste de emergência em bandeja, determinação de sementes infestadas, índice de velocidade de emergência e teste de sanidade. Conclui-se que a peliculização não afeta a qualidade fisiológica das sementes de milho e a aplicação de Furazin e/ou Maxin, sobre as sementes de milho, é tecnicamente viável. Sementes de milho de alta qualidade inicial podem ser tratadas e armazenadas por seis meses, sem que haja comprometimento de sua qualidade fisiológica.
The use of phytosanitary chemicals applied via seeds is a routine practice for corn crop, nevertheless, the growing concern about environment and human security make it necessary to develop new technologies which can reduce the handling risks of these phytoprotectors, therefore, this is one of the main objectives of polymer use. Thus, this work was intended to evaluate the physiological and sanitary quality of corn seeds submitted to phytosanitary treatments in association with different polymers during storage. So, the corn seeds of the hybrids AG9010 e AG122 were treated or not with the insecticide carbofuran (Furazin) at the dosage of 1.5 L/100 kg of seeds and in mixture with the fungicide fludioxonil (Maxin) at the dosage of 100 mL/100 kg of seeds. Over the treatment of the seeds, polymers 1519 were utilized or not at the dosage of 50 mL/100 kg of seeds, and polymer 1080 at the dosage of 100 mL/100 kg of seeds. The seeds were packed into multifoliated paper packages and stored for six months under environmental conditions, seed quality being evaluated before and after storage by means of the following determinations: germination test, coiled test, tray germination test, infested seed determination, emergence velocity index and sanity test. It follows that pelliculation does not affect the physiological quality of corn seeds and the application of Furazin and/or Maxin upon corn seeds, is technically viable. Corn seeds of high initial quality may be treated and stored for six months, without any endangerment of their physiological quality.
The use of phytosanitary chemicals applied via seeds is a routine practice for corn crop, nevertheless, the growing concern about environment and human security make it necessary to develop new technologies which can reduce the handling risks of these phytoprotectors, therefore, this is one of the main objectives of polymer use. Thus, this work was intended to evaluate the physiological and sanitary quality of corn seeds submitted to phytosanitary treatments in association with different polymers during storage. So, the corn seeds of the hybrids AG9010 e AG122 were treated or not with the insecticide carbofuran (Furazin) at the dosage of 1.5 L/100 kg of seeds and in mixture with the fungicide fludioxonil (Maxin) at the dosage of 100 mL/100 kg of seeds. Over the treatment of the seeds, polymers 1519 were utilized or not at the dosage of 50 mL/100 kg of seeds, and polymer 1080 at the dosage of 100 mL/100 kg of seeds. The seeds were packed into multifoliated paper packages and stored for six months under environmental conditions, seed quality being evaluated before and after storage by means of the following determinations: germination test, coiled test, tray germination test, infested seed determination, emergence velocity index and sanity test. It follows that pelliculation does not affect the physiological quality of corn seeds and the application of Furazin and/or Maxin upon corn seeds, is technically viable. Corn seeds of high initial quality may be treated and stored for six months, without any endangerment of their physiological quality.
| Reference Key |
pereira2005cinciaqualidade
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| Authors | ;Carlos Eduardo Pereira;João Almir Oliveira;José Renato Emiliorelli Evangelista |
| Journal | information and software technology |
| Year | 2005 |
| DOI |
10.1590/S1413-70542005000600014
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| URL | |
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