不同浓度赤霉素浸种对刺蒺藜种子萌发特性的影响  

Effect of Different Concentration of Gibberellin on The Seed Germination of Tribulus terrestris L.

作　　者：韦妍[1] 李萍 田婵 常海飞[1] 冯晓东[1] WEI YAN;LI PING;TIAN CHAN;CHANG Hai-fei;FENG Xiao-dong(College of Life Science,Yan′an university,Yan′an 716000,China)

机构地区：[1]延安大学生命科学学院,陕西延安716000

出　　处：《延安大学学报（自然科学版）》2018年第1期84-87,91,共5页Journal of Yan'an University：Natural Science Edition

基　　金：2016年省级大学生创新创业训练计划项目(1554)

摘　　要：在室温26℃条件下,研究了不同浓度赤霉素(0 mg/L、100 mg/L、200 mg/L、300 mg/L、400mg/L)浸种对刺蒺藜种子的发芽率,发芽速率,发芽势、发芽指数、叶长和根长等萌发特性指标的影响。结果表明:不同浓度赤霉素浸种对刺蒺藜种子的发芽率、发芽速率、发芽势和活力指数均有促进作用,浓度为300 mg/L的赤霉素能显著增加发芽率、发芽速率和活力指数,浓度为400 mg/L时能显著增加发芽势,同时,浓度在200~400 mg/L之间,能增加刺蒺藜幼苗根重量、茎长度和茎重量,经300 mg/L浓度赤霉素浸种后,幼苗根冠重量比显著增大。表明赤霉素能显著提高刺蒺藜种子的活力和抗逆性,增强种子的萌发能力。The effects of different concentrations of gibberellin(0mg/L,100 mg/L,200mg/L,300mg/L and 400mg/L)on germination rate,germination rate,germination potential,germination index,leaf length and root length of Tribulus terrestris were studied at room temperature of 26 degrees.The results showed that germination rate,germination rate,germination and vigor index of tribulus seed were promoted with different concentration of gibberellin on soaking tribulus seed.300mg/L gibberellin could significantly increase the germination rate,germination rate and vigor index,and the400mg/L gibberellin could significantly increase the germination potential.At the same time,the 200~400mg/L gibberellin can the increase of root weight,stem length and stem weight of Tribulus terrestris seedling.Seedling shoot weight ratio was significantly increased with the 300mg/L gibberellin.The results showed that gibberellin could significantly increase the vigor and stress resistance of Tribulus terrestris seeds and enhance the germination ability of seeds.

关 键 词：刺蒺藜 种子萌发 浸种 赤霉素 

分 类 号：Q945.4[生物学—植物学]