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.
Pelliculation; Zea mays; insecticide; fungicide; fludioxonil; carbofuran
