小麦播前种子处理有促进小麦早生快发、增根促蘖、提高粒重等重要作用。常用方法有: 1.发芽试验 应随机选取待播种子进行发芽试验,当发芽率在90％以上时,可按预定播种量播种;发芽率在85％—90％之间的可适当增加播种量;发芽率在80％以下的要更换种子。 2.精选种子 未经精选的种子,不仅降低出 Pre-sowing of wheat seeds to promote wheat early quick hair growth, increase tillering, increase grain weight and other important role. Common methods are: 1. Germination test Random selection of seeds to be sown germination test, when the germination rate of 90% or more, the sown according to the scheduled sowing; Germination rate of 85% -90% of the appropriate increase in seeding ; Germination rate of 80% or less to replace the seeds. 2. Selected seeds not selected seeds, not only lower out