关于种子粒度对作物出苗、生育和产量的影响,国内外都有人进行过试验和报道。但是,结果相差悬殊,结论截然不同。来自苏联关于小麦、甜菜、棉花和亚麻等方面的报道,一致肯定种子粒度及其分级对产量影响显著。例如,季米里亚捷夫农学院试验证明一级小麦种子比一、二级混合的种子增产达36.7%,阿列克斯德罗夫育种站А、Ф、布德科夫的试验指出大粒 About seed size on crop emergence, fertility and yield, both at home and abroad have been tested and reported. However, the results differ widely and the conclusions are very different. Reports from the Soviet Union on wheat, sugar beet, cotton and flax have unanimously affirmed that seed size and grading have a significant impact on production. For example, tests conducted by the JIMIR Academy of Agricultures prove that the first-grade wheat seeds produce 36.7% more seeds than the first- and second-grade mixed seeds. Experiments at Aleksdorff breeding stations А, Ф and Budekov show that large grains