摘要
对水稻超干种子的烘干方法进行了筛选,并对不同状态种子的耐高温能力进行了试验比较,并对超干种子耐藏性、破除种子休眠、灭杀种传病害的效果进行了探索。结果表明,水稻超干种子安全有效的烘干方法是"先低温(45℃)后高温(65℃～75℃)"两段法;水稻种子耐高温干热能力从强到弱依次为超干种子>干种子>潮种子>鲜种子>湿种子>露白种子;水稻超干种子制备后立即用种子害虫咬不破不透气材料进行密封保存,可以长时间储存,并保证种子发芽率不下降;利用超干种子的耐热性,采用高温干热破除种子休眠和灭杀种传病虫害效果显著。
The drying method of super dry seeds of rice was selected and the high temperature resistance of seeds was tested in this paper, and the effects of storage resistance,the elimination of seed dormancy and the destruction of seed borne diseases were explored.The results showed that the safe and effective drying method for super dry seeds was two-stage method with low temperature(45℃)first and high temperature(65℃~75℃) later, the dry heat resistance of seeds from strong to weak was super dry seed> dry seed >fresh seed > wet seed > white seed. Under the seal storage condition, the super dry seeds could be stored for a long time and the seed germination rate could not be reduced. According to the characteristics of heat resistance of super dry seeds, the method of high temperature and dry heat could be used to break the seed dormancy and kill the transmission of diseases and insect pests with remarkable effect.
作者
叶世青
YE Shiqing(Anyuan Agriculture and Food Bureau,Anyuan,Jiangxi 342100,China)
出处
《中国稻米》
2019年第2期10-15,共6页
China Rice
关键词
水稻
超干种子
高温
发芽率
害虫
休眠
种传病害
rice
super dry seeds
high temperature
germination rate
pests
dormancy
seed borne disease
作者简介
叶世青:ysqjg126.com
