消毒处理对高羊茅种子发芽的影响  

Effects of Disinfection Treatments on the Seeds Germination of Tall Fescue(Festuca arundinacea)

作　　者：杨云贵[1] 王红俊[1] 杨雪娇[1] 程天亮[1] 

机构地区：[1]西北农林科技大学动物科技学院,陕西杨凌712100

出　　处：《草地学报》2014年第2期380-385,共6页Acta Agrestia Sinica

基　　金：国家牧草产业技术体系"优质牧草产品标准化生产关键技术"(CARS-35-01A);国家燕麦产业技术体系"燕麦加工利用"(CARS08-D1)资助

摘　　要：为选择高羊茅(Festuca arundinacea)种子的最佳消毒处理方法,选用6种常用种子消毒处理方法:0.1%HgCl_2浸泡10 min、10%H_2O_2浸泡20 min、0.5%KMnO_4浸泡10 min、75%C_2 H_5OH浸泡5 min、2.0%NaClO浸泡20 min、0.16%HCHO浸泡30 min进行消毒处理,对其消毒效果、种子萌发及幼苗的影响进行测定。结果表明:10%H_2O_2浸泡20 min和0.5%KMnO_4浸泡10 min的消毒效果较好,对种子萌发和幼苗生长均没有负面影响,可以作为高羊茅种子理想的消毒方法优先选用;0.1%HgCl_2浸泡10 min和2.0%NaClO浸泡20 min的消毒效果虽好,对种子发芽率没有影响但对种子萌发速度和幼苗生长有一定的影响,慎重选用;75%C_2H_5OH浸泡5min和0.16%HCHO浸泡30 min的消毒效果不佳,对幼苗的生长也有影响,且0.16%HCHO处理对种子的伤害较大,不宜选用。The aim of the study was to find out the most effective disinfection methods of tall fescue （Festuca arundinacea） seeds.The effects of 6 disinfection treatments （0.1％ HgCl2 soaking 10 min,10％ H2O2 soaking 20 min,0.5％ KMnO4 soaking 10 min,75％ C2H5OH soaking 5 min,2.0％ NaClO soaking 20 min,0.16％ HCHO soaking 30 min） on disinfection effectiveness,seed germination and seedling growth were assessed in the experiment.Results showed that 0.5 ％ KMnO4 and 10％ H2 O2 treatments greatly reduced seed infection,and had no obvious negative effects on seed germination and seedling growth.They were recommended as priorities to disinfect tall fescue seed.0.1％ HgCl2 and 2.0 ％ NaClO treatments could effectively reduce seed infection,but had negative effects on seedling growth.75 ％ C2 H5 OH and 0.16 ％ HCHO treatments showed poor disinfecting results and had negative effect on seedling growth.

关 键 词：高羊茅 消毒处理 消毒效果 种子萌发 幼苗生长 

分 类 号：S330.2[农业科学—作物遗传育种] S351.2[农业科学—农艺学]