1影响水稻种子发芽率的因素1.1浸种时间和浸种药剂浸好的种子标志是:稻壳颜色变深,稻谷呈半透明状态,透过颖壳可以看到腹白和种胚,米粒易捏断,手碾呈粉状,没有生心。种子带有很多病原菌,在水稻生长的不同阶段表现出不同的病害症状,在浸种同时还要对种子进行消毒。简单有效的方法就是用一些药剂一同浸种,然而药剂的浓度会对种子发芽产生影响,有试验数据表明:①浸种灵安全浓度不超过5 000倍液,浓度越 1 factors that affect the germination rate of rice seed 1.1 seed soaking time and soaking seeds dip seed symbols are: rice husk darker color, translucent rice translucent state can see the white belly and embryo, rice easy to pinch broken Hand crushed powder, no heart. The seeds carry many pathogenic bacteria that show different symptoms of disease at different stages of rice growth, while the seeds are soaked in seed soaking. Simple and effective method is to use some agents soaking, however, the concentration of the agent will have an impact on the germination of seeds, the test data show: ① soaking seed Ling safe concentration of not more than 5,000 times the concentration of the more