赤霉素浸种与层积时间对距瓣尾囊草种子萌发的影响
HU Jin-yao, YANG Jing-tian, HE Jing, SUN Chen-dong. Effects of GA3 and Stratification Time on the Germination of Urophysa rochkii Seeds[J]. Journal of Sichuan Forestry Science and Technology, 2015, 36(3): 88-90. DOI: 10.16779/j.cnki.1003-5508.2015.03.018
Citation: HU Jin-yao, YANG Jing-tian, HE Jing, SUN Chen-dong. Effects of GA3 and Stratification Time on the Germination of Urophysa rochkii Seeds[J]. Journal of Sichuan Forestry Science and Technology, 2015, 36(3): 88-90. DOI: 10.16779/j.cnki.1003-5508.2015.03.018
赤霉素浸种与层积时间对距瓣尾囊草种子萌发的影响
绵阳师范学院，四川 绵阳 621000
详细信息
作者简介:胡进耀(1978-),副教授,主要从事林业生态工程研究,E-mail:jinyaohu@126.com。
中图分类号: S722.3
计量 文章访问数: 0160 HTML全文浏览量: 023 PDF下载量: 01 出版历程 收稿日期: 2015-01-18Effects of GA3 and Stratification Time on the Germination of Urophysa rochkii Seeds
Mianyang Normal College, Mianyang 621000, Sichuan, China
摘要
摘要: 以距瓣尾囊草种子为实验材料,采用培养皿发芽法,研究不同浓度赤霉素浸种与层积时间对种子萌发的影响。结果表明:种子具有休眠特性,层积能够促进种子的萌发,时间越长效果越好。层积前用赤霉素浸种处理可显著提高种子发芽率和发芽势。用浓度400 mg·L-1的赤霉素对种子浸泡24 h后层积60 d的萌发效果最好,可使种子的发芽率和发芽势达到83.91%和51.60%。
关键词: 距瓣尾囊草 / 种子 / 赤霉素 / 萌发Abstract: In the accelerating germination experiment,the seeds of Urophysa rochkii were soaked with different concentrations(50 mg·L-1,100 mg·L-1,200 mg·L-1,400 mg·L-1 and 800 mg·L-1) of GA3,which were treated by the cold stratification in the refrigerator,and then their germination rate was measured in the Petri dish. The results showed that the seeds of Urophysa rochkii had dormancy characteristics,the cold stratification could promote the germination of Urophysa rochkii seeds and the germination rate would increase with the increase of the time. Soaking with gibberellins before stratification had obvious effects on the germination of Urophysa rochkii seeds. The seeds stratified for 60 days after soaked with gibberellins at the concentration of 400 mg·L-1 for 24 hours had better effects,their germination rate and germination performance reached 83.91% and 51.60%,respectively.
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计量 文章访问数: HTML全文浏览量: PDF下载量: 出版历程 收稿日期: 2015-01-18相关知识
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