Threshing Cylinder Speed Affects Germination of Amaranths cruentus L. Seeds
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The percentage of normal grain amaranth seedlings decreased and that of abnormal seedlings increased as threshing cylinder speed increased from 8.1 to 30.7 m-s -1 . At the highest threshing speed, seed deterioration (loss of germination and increase in the percentage of abnormal seedlings) was exacerbated by increasing seed storage from 7 to 47 months. Threshing cylinder speeds of 8.1 to 12.8 m-s -1 resulted in similar percentages of normal seedlings as those achieved with hand-harvesting and threshing [...]
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