Effects of polymers as a main component of coating formulations on quality and effects of stability of cucumber seeds

บทคัดย่อ

Seed coating is used for delivery pesticide and bio-fungicide on the seed for protects seed from pest infestation. The objectives of this study were to determine the effects of formulations on germination percentage and germination index under laboratory and greenhouse conditionsof hybrid cucumber seed var. CU023 for immediately coated seed and stored seed under controlled and ambient conditions. Treatments included hydroxypropyl methyl cellulose (5%)+additives, polyvinyl alcohol (5%)+additives, polyvinylpyrrolidone-K30 (10%)+additives, polyvinylpyrrolidone-K90 (5%)+additives and commercial seed coating substance (80%)+20% water as a control treatment. Data were recorded for viscosity, pH, film dissolving percentage, germination percentage and germination index. The experiments were laid in a completely randomized design with four replications. All tested formulations were less viscous than an un-identified commercial control and the viscosity and pH of all tested formulations were stable. The tested formulations were similar to commercial control and untreated control for germination percentage and germination index. The most suitable polymer will depend entirely on the needs of a particular slurry mix.