外源GA_3、ABA处理对杂交稻亲本产量及种子贮藏性的影响  

Effects of the Treatments with Exogenous GA_3 and ABA on Yield and Seed Storage of Hybrid Rice

作　　者：周述波[1,2] 林伟[2] 萧浪涛[1] 

机构地区：[1]湖南农业大学植物激素与生长发育重点实验室,湖南长沙410128 [2]海南琼州学院生物科学与技术学院,海南三亚572022

出　　处：《湖南农业科学》2011年第2期9-11,共3页Hunan Agricultural Sciences

基　　金：教育部青年骨干教师基金项目[2000(65)];三亚校地合作科研项目(YD201027)

摘　　要：选用遗传上发芽差异显著的两个亲本作为材料,分别用外源GA3、ABA处理,对杂交水稻制繁种时影响水稻亲本产量和质量的形态指标及种子的耐贮性进行了研究。结果表明:外源GA3处理在一定程度上能增加穗长,而对籽粒充实度、千粒重有一定的负面影响,可使种子休眠缩短,在短期内提高种子的发芽势,但降低了种子活力;外源ABA处理可以促进种子的休眠,并在一定程度上提高籽粒充实度,增加千粒重,但解除种子休眠需一定时间。The treatments with exogenous GA3 and ABA were applied to two different parents who have significant difference between germination,meanwhile,the morphological index,which will affect yield and quality of rice parents during seed production,and the storage property of rice seed were researched.The results showed that the treatment with exogenous GA3 increased spike length in a certain degree,but it had some negative effects on grain plumpness and grain weight,furthermore,it decreased seed dormancy and increased seed germination potential in a short time,but it decreased seed vitality;the treatment with exogenous ABA can promote seed dormancy,increase grain plumpness and grain weight in a certain degree,but it relieved seed dormancy for awhile.

关 键 词：穗长 籽粒充实度 千粒重 休眠 

分 类 号：S511[农业科学—作物学]