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中国农学通报

中国农学通报 ›› 2015, Vol. 31 ›› Issue (34): 158-162.doi: 10.11924/j.issn.1000-6850.casb15050177

• 林学 园艺 园林 • 上一篇    下一篇

温度和水分对甘草种子萌发的影响

陈小娜1,邱黛玉1,2,李燕君1,张 磊1   

  1. (1甘肃农业大学,兰州 730070；2甘肃省中药材规范化生产技术创新重点实验室,兰州 730070）
  • 收稿日期:2015-05-28 修回日期:2015-08-26 接受日期:2015-09-13 出版日期:2015-12-17 发布日期:2015-12-17
  • 通讯作者: 邱黛玉
  • 基金资助:
    甘肃省农牧厅中药材科技项目“甘草规范化种植基地优化升级及系列产品综合开发研究”(035-034088)；2013年中医药部门公共卫生专项“国家基本药物所需中药原料资源调查和监测”([2013]41)。

Effect of Temperature and Moisture Condition on Seed Germination of Glycyrrhiza uralensis Fisch

Chen Xiaona1, Qiu Daiyu1,2, Li Yanjun1, Zhang Lei1   

  1. (1Gansu Agricultural University, Lanzhou 730070;2Gansu Key Laboratory of Chinese Medicines Standardized Production Technological Innovation, Lanzhou 730070)
  • Received:2015-05-28 Revised:2015-08-26 Accepted:2015-09-13 Online:2015-12-17 Published:2015-12-17

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摘要： 为探明甘草种子萌发的适宜温湿度条件以提高萌发率，并为其开发利用提供基础。在不同温度(10、15、20、25℃)和水分(10%、15%、20%、25%)条件下通过对萌发时滞、发芽势、发芽率、霉变率指标的测定来研究甘草种子的萌发特性。结果表明：(15℃，20%)、(20℃，15%/25%)、(25℃，20%/25%)组合处理下种子萌发时滞为3天，较其他组合处理下用时短；(25℃，15%/20%/25%)组合处理下种子的发芽势明显高于其他组合水平，说明高温高湿条件下甘草种子萌发较快；(25℃，20%)组合处理下种子的萌发率达到最高值，为92.00%；(25℃，10%/20%)组合处理下种子的霉变率较低，种子发霉数较少，萌发可能性较大。上述各项指标综合显示，甘草种子萌发适宜的温度和湿度条件为：温度25℃、发芽床含水量20%。

关键词: 紫椴, 紫椴, 种子休眠, NaOH, 可溶性蛋白, 淀粉

Abstract: Seed germination characteristics at different temperatures (10, 15, 20, 25℃) and water conditions (10%, 15%, 20%, 25%) were studied to explore the suitable temperature and moisture condition, in order to provide basic information and improve seed germination rate of Glycyrrhiza uralensis Fisch. The germination delay, germination potential, germination rate and the moldy rate were tested as germination indictors. The results showed that the germination delay in treatments of (15℃, 20%), (20℃, 15%/25%) and (25℃, 20%/25%) were 3 d which was shorter than that in other treatments. The germination potentials in treatments of (25℃, 15%/20%/25%) were significantly higher than that in other treatments. It showed that Glycyrrhiza uralensis Fisch seeds geminated quickly at high temperature and high moisture condition. Seed germination rate reached the highest level which was 92.00% at (25℃, 20%). The moldy rate was lower in treatments of (25℃, 10%/20%) than that in others. The above indicators suggested that suitable temperature and moisture condition for seed germination of Glycyrrhiza uralensis Fisch were 25℃ and 20%.