粮食作物中的谷子、黍子;油料作物中的油菜、芝麻等,尤其是种类繁多,品种各异的蔬菜类种子,它们的子粒很小,发芽时间长短不一,最短的有6天,最长的14天。这些小粒种子若采用国标上的检验规程,用砂或滤纸作苗床放入培养皿中发芽,或者采用直立玻璃板新法发芽,用砂作苗床,砂和种子混为一体,不易 Millet in food crops, rape and sesame in oilseed crops, especially a large variety of vegetable seeds of different varieties. Their seeds are very small and the germination time varies from 6 days to the shortest Long 14 days. If the use of these small particles of the national standard test procedures, with sand or filter paper for the seedbed into the petri dish germination, or the use of erect glass law sprout, with sand as seedbed, sand and seed mixed, not easy