外源赤霉酸对杂交水稻亲本种子萌发的生理影响  

The Physiological Effects of Exogenous Gibberellicacid on Germination of Hybrid Rice Parent Line Seeds

作　　者：周述波 贺立静 林伟 贺立红[2] ZHOU Shubo HE Lijing LIN Wei(College of Tropical Biology and Agronomy, Hainan HE Lihong2 Tropical Ocean University, Sanya Hainan 572022,China College of Life Science,Zhongkai University of Agriculture and Engineering, Guangzhou Guangdong 510225, China)

机构地区：[1]海南热带海洋学院热带生物与农学院,海南三亚572022 [2]仲恺农业工程学院生命科学学院,广东广州510225

出　　处：《种子》2016年第12期35-38,共4页Seed

基　　金：海南省自然科学基金项目外源生长调节剂对杂交水稻穗上芽发生的生理调控研究(编号:20153150);三亚市院地科技合作项目外源生长物质对杂交水稻穗上芽发生的影响研究(编号:2014 YD 32);琼州学院校级青年科学基金项目杂交水稻穗上芽发生的生理机制研究(编号:QYQN 201243)

摘　　要：外源赤霉酸GA3对杂交水稻亲本金23 B和V 20 B种子进行处理,其生理变化结果表明,外源GA3在浓度为50~110 mg/L时,随着浓度增加,可明显促进2个水稻品种亲本种子的萌发,当外源GA3浓度为110 mg/L时,提高了萌发种子中可溶性糖的含量,α-淀粉酶的活性,降低了种子内源IAA和ABA的含量,增加了内源GA3含量。With seeds of hybrid rice parent line Jin 23 B and V 20 B as experimental material,the study is focused on the physiogical effects of exogenous GA3 on germination of hybrid rice seeds.The results showed that seed germination of two varities were significantly promoted by 50-110 mg/L GA3, with the content increasing, physiological analysis indicated that soluble sugar content were increased, a-amylases activity were promoted,IAA and ABA content were degraded, and endogenous GAs were increased by 110 mg/L during seed germination.

关 键 词：赤霉酸 杂交水稻 种子萌发 

分 类 号：S511[农业科学—作物学]