生物技术通报 ›› 2017, Vol. 33 ›› Issue (8): 58-62.doi: 10.13560/J.cnki.biotech.bull.1985.2017-0203

• 研究报告 • 上一篇    下一篇

Flor-essence对小麦种子萌发和幼苗生长的影响

邸惠1, 张继权1, 吕建洲2, 马齐云1   

  1. 1. 东北师范大学环境学院自然灾害研究所,长春 130117;
    2. 辽宁师范大学,大连 116000
  • 收稿日期:2017-03-20 出版日期:2017-08-01 发布日期:2017-08-01
  • 作者简介:邸惠,女,硕士研究生,研究方向:环境科学;E-mail:982347083@qq.com
  • 基金资助:
    国家重大水专项(2014ZX07201-011-002)

Effects of Flor-essence on Seed Germination and Seedling Growth in Wheat

DI Hui1, ZHANG Ji-quan1, Lü Jian-zhou2, MA Qi-yun1   

  1. 1. School of Environment,Natural Disaster Research Institute,Northeast Normal University,Changchun 130117;
    2. Liaoning Normal University,Dalian 116000
  • Received:2017-03-20 Published:2017-08-01 Online:2017-08-01

摘要: 研究不同浓度Flor-essence对小麦种子萌发及幼苗生长的影响,以开拓其在植物生长调节剂领域的新应用。通过室内水培试验,分别设定50、100、150、200和250 mg/L 5组不同浓度的Flor-essence溶液处理,测定小麦种子发芽和植株生长的相关指标,同时选取清水(0 mg/L Flor-essence)和0.015 mg/L的油菜素内酯(BR)作对照。结果显示,与对照相比,不同浓度Flor-essence浸种均促进了小麦种子的萌发和生长,小麦的发芽势、发芽率、发芽指数、根长、株高、鲜重、干重、叶绿素含量和根冠比均有不同程度提高。不同浓度处理中,以200和250 mg/L处理的幼苗发芽情况最好;以150 mg/L处理的株高最高;以200 mg/L处理的根长最长、根冠比最大;以250 mg/L处理的鲜重、干重和叶绿素含量最高。利用Flor-essence浸种可促进小麦种子萌发和幼苗生长,且浓度为150-250 mg/L Flor-essence更能够在不同程度上促进小麦苗期的生长。

关键词: Flor-essence, 小麦, 种子萌发, 幼苗生长

Abstract: The present experiment is to study the influences of different concentrations of Flor-essence on seed germination and seedling growth of wheat,in order to explore its new application in the field of plant growth regulators. By using indoor hydroponic culture,five different concentrations of Flor-essence(50,100,150,200 and 250 mg/L)were designed to determine relevant indicators on seed germination and seedling growth of wheat,and clear water(0 mg/L Flor-essence)and 0.015 mg/L brassinolide(BR)as control. As results,soaking in all different Flor-essence concentrations promoted the seed germination and seedling growth of wheat seeds while compared with the control,,and improved the seed germination potential,germination rate,germination index,root length,plant height,fresh weight,dry weight,chlorophyll content and root shoot ratio in varied degrees. Among all Flor-essence treatments,the germination conditions of seedlings were the best with the treatment of 200 and 250 mg/L;the plant height was the highest with the treatment of 150 mg/L;the root length and the root shoot ratio were the highest with the treatment of 200 mg/L;the fresh weight,dry weight and chlorophyll content were the highest with the treatment of 250 mg/L. In conclusion,the use of Flor-essence soaking promotes the seed germination and seedling growth of wheat,and the Flor-essence concentration of 150-250 mg/L may promote the seedling growth in different degree.

Key words: Flor-essence, wheat, seed germination, seedling growth