杂交稻种子是国家指定种子部门经营的特殊商品,其质量的好坏直接影响到农民的利益。近年来,一些不法商贩为了牟取暴利,利用多数人不能正确鉴定种子质量的弱点,私自贩卖假劣种子,给种子市场管理带来一定难度,给用户农户造成重大经济损失。一、真假杂交种子及其纯度的鉴别 1.看种子柱头残迹外露率。杂交稻种子由于是异交结实,制种田母本柱头发达,外露率高达80%以上,授精结实后,柱头留在颖壳外,退化成一个小黑点,即柱头残迹,杂交稻种子柱头痕迹外露率一般高达50%以上(含50%),而用后代假冒F_1代杂 Hybrid rice seeds are special commodities managed by designated national seed departments, whose quality directly affects the interests of peasants. In recent years, unscrupulous traders in order to reap huge profits, the use of the majority of people can not correctly identify the weaknesses of seed quality, selling counterfeit seeds without permission, the seed market management to bring some degree of difficulty, causing significant economic losses to the user farmers. First, the identification of true and false hybrid seeds and their purity 1. Look at the stigma remnants of the seed exposed rate. Hybrid rice seeds are outcrossing and strong, and their parental pillars developed more than 80%. After insemination, the stigma remained outside of the glume shell and degenerated into a small black spot, that is, the stigma of the stigma and the stigma of the hybrid rice seed Exposure rate is generally as high as 50% (including 50%), but with offspring counterfeit F_1 generation hybrid