Drying methods on groundnut seed quality
2003
Boonmee Siri(Khon Kaen University, Khon Kaen (Thailand). Faculty of Agriculture. Department of Agronomy) | Benjamaporn Sutthi(Khon Kaen University, Khon Kaen (Thailand). Faculty of Agriculture. Department of Agronomy) | Sopone Wongkaew(Khon Kaen University, Khon Kaen (Thailand). Faculty of Agriculture. Department of Plant Pathology)
Experiment was conducted with the aim of testing three seed drying methods on peanut seed quality. The three drying methods were hot air drying method (using forced-hot air batch type dryer invented by Surin Seed Multiplication Center), sun drying method and air drying method. After drying, the seeds were packed in gunny sacks and stored under ambient conditions for 6 months. The seeds were monthly sampled and tested for seed quality and Aspergillus flavus contamination. It was found that hot air drying method was better than the other drying methods in reducing the moisture content from 27 percent to 5.7 percent was 36 hours for hot air drying method, 60 hours for sun drying and 90 hours for air drying method. Force-hot air drying method had a tendency to give higher germination percentage and higher seed vigor than the other two drying methods but not statistically different. After 6 months storage under ambient conditions, it was found that forced-hot air drying method was superior to the other drying methods in maintaining seed quality. It gave statistically higher germination percentage, lower conductivity of seed leachates, abnormal seeding percentage and lower contamination of A. flavus than the other two drying methods.
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