Effects of coating substances on quality and longevity of super sweet corn seed
2007
Suwaree Korkasetwit(Khon Kaen University, Khon Kaen (Thailand). Faculty of Agriculture. Dept. of Plant Science and Agricultural Resource) | Padungkwan Chittropas(Khon Kaen University, Khon Kaen (Thailand). Faculty of Pharmaceutical. Dept. of Pharmaceutical Technology) | Boonmee Siri(Khon Kaen University, Khon Kaen (Thailand). Faculty of Agriculture. Dept. of Plant Science and Agricultural Resource)
Objective of this experiment was to study the effects of coating substances on quality and longevity of super sweet corn seed. There were 13 treatments. 1) Uncoated seed, coated seed with 2) water soluble cellose (WSC), 3) water soluble cellose metalaxyl (WSCM), 4) water insoluble polyacrylate (PAL), 5) water insoluble polyacrylate + metalaxyl (PALM), 6) water insoluble cellulose (ISC), 7) water insoluble cellulose + metalaxyl (ISCM), 8) commercial seed coating substance 1 (CS1), 9) commercial seed coating substance 1 + metalaxyl (CS1M), 10) commercial seed coating substance 2 (CS2), 11) commercial seed coating substance 2 + metalaxyl (CS2M), 12) commercial seed coating substance 3 (CS3) and 13) commercial seed coating substance 3 + metalaxyl (CS3M). Seed qualitys were determined after coating, after seeds were accelarated aging at 45 deg C, 100 percent RH for 72 and 96 hours and after storing for 4 months either under controlled (15 deg C, 40 percent RH) or ambient condition. The results showed that the germination rate in laboratory was not significantly different with various types of coating. However, the coated seeds trended to show the better of germination in field condition, speed of germination and accelarated aging test. The seeds that stored under control condition had a higher quality than those stored under ambient condition. It is concluded that coating substances did not adversely affect quality and longevity of super sweet corn seed.
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