赤霉素和低温层积处理对金太阳杏种子萌发的影响  

Effects of GA_3 Treatment and Low Temperature Stratification on Seed Germination of Golden Sun Apricot

作　　者：韩雪平[1] 薛晓敏[1] 王金政[1] 

机构地区：[1]山东省果树研究所,山东泰安271000

出　　处：《安徽农业科学》2017年第8期24-25,47,共3页Journal of Anhui Agricultural Sciences

基　　金："十二五"农村领域国家科技计划课题"杏新品种选育"(2013BAD02B03-3-3);山东省农业良种工程项目

摘　　要：[目的]研究赤霉素(GA_3)和低温层积处理对金太阳杏种子萌发的影响。[方法]以金太阳杏为试验材料,采用先赤霉素处理后低温层积处理的方法,选出萌发率最高的处理。[结果]在层积20 d和1 500、2 000 mg/L的激素浓度萌发率最高,达60%,比传统方法(仅采用低温层积)节约0.17%的时间。浸种24 h达到了理想的萌发率;去壳种子总体上滋生细菌的概率大于带壳种子,尤其是在夏天处理时污染率更高,处理种子的时间受限,并且去壳不便于生产实践中的操作。[结论]层积20 d和1 500 mg/L GA_3处理的带壳种子萌发率最高、出苗时间最短,该处理便于生产实践中的操作,可选出优良品种。[Objective] To research the effects of GA_3 treatment and low temperature stratification on seed germination of Golden Sun apricot.[Method]With Golden Sun apricot as the test material,the method of GA_3 treatment after the first cold stratification treatment was adopted to screen the treatment having the highest germination rate.[Result] Stratification treatment for 20 d with 1 500 and 2 000 mg/L GA_3 showed the highest germination rate（60%）,which saved 0.17% time compared with the traditional method.Seed soaking for 24 h reached the ideal germination rate.Probability of bacteria growth in seeds removing the shell was greater than that in seeds with shell,especially in summer.Besides,removing the seed shell was not convenient to the operation of production practice.[Conclusion]Treatment of stratification for 20 d with 1 500 mg/L GA_3 concentration had the highest seed germination rate,the shortest seedling emergence time,and could screen the high-quality variety.

关 键 词：金太阳 层积时间 低温 赤霉素 

分 类 号：S662.2[农业科学—果树学]