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温度及赤霉素对马齿苋种子发芽影响的研究
引用本文:段国锋,李丽娟,杨忠义.温度及赤霉素对马齿苋种子发芽影响的研究[J].山西农业大学学报(自然科学版),2013,33(4):328-331.
作者姓名:段国锋  李丽娟  杨忠义
作者单位:1. 山西农业大学园艺学院,山西太谷,030801
2. 山西农业大学信息学院,山西太谷,030801
基金项目:山西省科技基础条件平台建设项目,山西农业大学引进人才科研启动项目
摘    要:采用两因素完全随机设计,对比分析了15℃、25℃、35℃3种温度条件结合0、50、100、200mg·L-1 4种不同浓度赤霉素对马齿苋种子发芽率、发芽势、发芽指数的影响,并在此基础上对马齿苋种子进行低温预处理,研究了低温对马齿苋种子发芽的效应。结果表明,35℃和100mg·L-1赤霉素处理对马齿苋种子发芽活性均有显著效应;温度和赤霉素互作可更有效提高马齿苋的发芽率、发芽势、发芽指数,以100mg·L-1+35℃效果最佳;低温预处理能够提高马齿苋种子的发芽活性,并能改善发芽的整齐度和健壮水平。

关 键 词:马齿苋  种子  赤霉素  温度处理  发芽率

Studies on the Influence of the Temperature and the Concentration of GA3 on the Seed Germination of Portulaca oleracea L
Duan Guofeng , Li Lijuan , Yang Zhongyi.Studies on the Influence of the Temperature and the Concentration of GA3 on the Seed Germination of Portulaca oleracea L[J].Journal of Shanxi Agricultural University,2013,33(4):328-331.
Authors:Duan Guofeng  Li Lijuan  Yang Zhongyi
Institution:1. College of Horticuture, Shanxi Agricultural University, Taigu Shanxi 030801 , China ; 2. College of Information , Shanxi Agricultural University, Taigu Shanxi 030801 ,China)
Abstract:The impacts of the three different temperatures, 15℃,25℃ and 35℃, and four different concentrations of GA3 , at 0,50,100 and 200 mg·L^-1 to the germination rate, germination potential and germination index of the Portulaca oleracea L. seed were studied and the results were analyzed with twoway ANOVA. The influences of pre treatment with low temperature on the germination rate of Portulaca oleracea L. seed were also conducted. The results showed that seed germination rates were significantly increased at 35℃ and 100mg·L^-1 of GA3. The combination of the temperature at 35 C and the concentration of GA3 at 100 mg·L^-1 could work even better on improving lhe germi nation rate, the germination potential and the germination index of the seeds. The pre-treatment with low temperature could increase the germination activity, germination uniformity and health level of the seeds.
Keywords:Portulaca oleracea L  seed  GA3  The temperature handle  Germination rate
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