ZHAO Dan,JIN Hua,SONG Pengfei,et al.Study on Method for Breaking Dormancy for Xanthoceras sorbifolia Seed[J].Northern Horticulture,2016,40(12):16-20.[doi:10.11937/bfyy.201612004]
文冠果种子休眠解除方法研究
- Title:
- Study on Method for Breaking Dormancy for Xanthoceras sorbifolia Seed
- Keywords:
- Xanthoceras sorbifolia Bunge; seeds; dormancy; germination rate
- 文献标志码:
- A
- 摘要:
- 以文冠果种子为试材，设置10种不同催芽方法，包括水浴加热、不同浓度的H2SO4、KNO3、PEG-6000等试剂处理文冠果种子，诱导发芽后调查种子的发芽率、活力、发芽势等发芽参数，并对不同催芽方法进行了比较分析，筛选适合文冠果种子快速解除休眠的方法。结果表明：80 ℃水浴加热、4% KNO3溶液、5% PEG-6000溶液、GA3溶液、2% KNO3溶液、10% PEG-6000溶液、4 ℃蒸馏水浸种、50% H2SO4溶液处理，均可不同程度的提高文冠果种子的发芽率，而高浓度H2SO4溶液处理对文冠果种子发芽有抑制作用；文冠果种子经80 ℃水浴加热10 min处理可使发芽率提高到55.83%，为未处理的9.3倍。
- Abstract:
- Xanthoceras sorbifolia Bunge seed was used as test materials,using ten different pregermination methods,including heating in water bath,different concentration of H2SO4,KNO3,PEG-6000 and other reagents were used to treat Xanthoceras sorbifolia Bunge seeds,the germination rate,vigor,germination potential and other germination parameters were investigated after induction budding,and different pregermination methods were compared and analyzed,to screen methods for rapid release of dormancy suitable for Xanthoceras sorbifolia Bunge.The results showed that,the germination rate of Xanthoceras sorbifolia Bunge seeds was increased in different degrees by being treated with 80 ℃ water bath heating,4% KNO3 solution,5% PEG-6000 solution,GA3 solution,2% KNO3 solution,10% PEG-6000 solution,seed pre-soaking with 4 ℃ distilled water and 50% H2SO4 solution.By contrast,the germination rate of Xanthoceras sorbifolia Bunge seeds was inhibited by high concentration H2SO4 solution.The germination rate of Xanthoceras sorbifolia Bunge seeds heated in 80 ℃ water bath for 10 minutes could be increased to 55.83%,which was 9.3 times of untreated.
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备注/Memo
第一作者简介：赵丹（1991-），女，河北衡水人，硕士研究生，研究方向为文冠果抗逆生理。E-mail：zhaodan131124@163.com.责任作者：金华（1971-），女，吉林延边人，博士，副教授，现主要从事植物遗传育种等研究工作。E-mail：jhua@dlnu.edu.cn.基金项目：中央高校基本科研业务费专项资金资助项目（DC201501070202，DC201501070401）。