Effects of coating substances and methods on quality and longevity of hybrid super sweet corn seed

Abstract

The objective of this experiment was to study the effects of coating substances and coating methodson seed quality and longevity of hybrid super sweet corn seed. There were 3 groups. Group 1: coated with polymercontained water soluble cellulose (WSC), water insoluble polyacrylate (PC), acrylic polymer (AP) Group 2: coatedwith polymer in group 1+metalaxyl and Group 3: coated with polymer and polymer+metalaxyl. Seed qualitywas determined after coating, accelerated aging (at 41°C, 100% RH for 72 hours), and after storing under controlled(15°C, 40% RH) and ambient conditions. The seeds were determined for seed germination in laboratory and fieldconditions and speed of germination. The results showed that the germination in both laboratory and field were not significantly different between coated and uncoated seeds, however, accelerated aging coated seed had lowergermination, particulary seed coated with metalaxyl. It was shown that the germination in laboratory and fieldcondition were not significantly different after storing for 6 months. However, the coated seeds with polyacrylate andacrylic polymer showed low germination.