不同处理对四倍体水稻种子发芽的影响  

Effects of Different Treatments on Germination of Tetraploid Rice Seeds

作　　者：梁欢 施先锋 葛米红 王德欢 李爱成 周谟兵 LIANG Huan;SHI Xianfeng;GE Mihong;WANG Dehuan;LI Aicheng;ZHOU Mobing(Institute of Crop Science,Wuhaa Academy of Agricultural Science and Technology,Cucurbits Industrialized Breeding Engineering and Technology Research Center of Hubei Province,Wuhnn,Hubei 430345,China)

机构地区：[1]武汉市农业科学院作物所,湖北省瓜菜工厂化繁育工程技术研究中心,湖北武汉430345

出　　处：《贵州农业科学》2018年第5期16-18,24,共4页Guizhou Agricultural Sciences

基　　金：武汉市科学技术计划项目“四倍体水稻工厂化育秧关键技术研发”(201702089010100);公益性行业(农业)科研专项“蔬菜种子特征参数与嫁接育苗工艺的研究”(201303014-06)

摘　　要：为四倍体水稻工厂化育秧提供参考,以四倍体水稻品种T1为材料,研究浸种时间、聚乙二醇-6000(PEG-6000)浓度、破胸温度等对四倍体水稻种子发芽的影响。结果表明:随着浸种时间的延长,水稻种子的发芽率、发芽势、发芽指数、活力指数均呈增大趋势;随着PEG-6000浓度、破胸温度的提高,水稻种子的发芽率、发芽势、发芽指数、活力指数均呈先增大后减少的趋势。采用综合评价指标隶属函数值进行评价,30℃清水浸种48h后30℃催芽、30℃7.5%PEG-6000浸种24h后30℃催芽或30℃清水浸种24h后34℃破胸30℃催芽处理的隶属函数值均最大,其隶属函数值分别为1、0.91和0.99,四倍体水稻种子发芽状况较好。To provide references for factory-sprouted tetraploid rice seedlings,the effects of seed soaking time,PEG-6000 concentration and seed broken temperature on the germination were studied with tetraploid cultivar T1 as test material.Results：Germination rate,germination potential,germination index and vigor index of tetraploid rice increased with the prolonging of soaking time.The germination rate,germination potential,germination index and vigor index of tetraploid rice increased first and then decreased with the increasing of PEG-6000 concentration or seed breaking temperature.Using the method of membership function to comprehensively evaluate the germination ability,it is found that these seeds treated by 30℃ water soaking for 48 hours and germinated at 30℃,or 30℃ 7.5% PEG-6000 soaking for24 hours and germinated at 30℃,or 30℃ water soaking for 24 hours and germinated at 34℃ until the seed broke and then transferred to 30℃ has the biggest value of membership function,and the value of membership functions is 1,0.91 and 0.99 respectively,showed that germination of tetraploid rice seeds with these treatments were better.

关 键 词：四倍体水稻 浸种时间 PEG-6000 破胸温度 

分 类 号：S511[农业科学—作物学]