摘要
“中柴1号”北柴胡种子播种在以大田耕层土作为育苗床的塑料盆中，并在温度15，20，25，15～25℃，光照8，12h的光照培养箱中进行出苗试验。结果表明较低恒温温度（15℃）与较高恒温温度（25℃）均不利于北柴胡出苗，但对增强幼苗根系活力有一定的促进作用；变温（15～25℃）较恒温显著促进北柴胡出苗；光照时间12h时，能够提高北柴胡出苗速率、出苗指数、活力指数及幼苗根系活力，但不能提高北柴胡出苗率；赤霉素、细胞分裂素、水杨酸等对柴胡种子进行浸种处理，能在一定程度上提高柴胡种子的萌发及出苗。赤霉素能促进北柴胡出苗及幼苗根系活力的提高；水杨酸能够提高幼苗根系活力。光照、温度与激素处理对北柴胡种子出苗均有显著影响，且三者存在显著互作效应；气温在20℃上下5℃波动，光照每天在8h左右，并采用赤霉素10×10-6进行激素处理最有利于提高北柴胡出苗率。
Seeds of Bupleurum chinense cuhivar,Zhongchai No. 1, were sowed in plastic pots which used the arable layer soil as the nursery bed and putted in the artificial climate incubator at various temperatures （15,20,25,15-25 ℃） and light （8,12 h） to germinate, respectively. The lower constant temperature （15℃ ） and the higher constant temperature （25℃ ） were not conducive to the sprouting characteristics of B. chinese. While they were able to enhance root activity to some extent ; The seeding growth of B. chi- nese was significantly better in the variable temperature than correspondence in the constant temperature, significantly. The emergence speed, emergence index, vigor index and root activity of Bupleurum were improved under the 12 h of light-time, but the germination rate was not improved. The sprouting of Bupleurum＇s seeds could be improved to some extent by soaking with hormone, such as gibber- ellin, cytokinin, salicylic acid. Gibberellin promoted seeds＇ sprouting and seedings＇s root activity of Bupleurum, while salicylic acid increased the root activity of seeding. There is a significant influence of light, temperatures and hormone treatment on the germination of Zhongchai No. 1 seeds, and all three are remarkably interacted ; It is beneficial to promote seed germination by the temperature （20 ±5） ℃, lighting （8 h） and gibberellin concentration （ 10 × 10-6 ）.
出处
《中国中药杂志》
CAS
CSCD
北大核心
2014年第8期1401-1406,共6页
China Journal of Chinese Materia Medica
基金
2010年国家星火计划项目(2010GA810056)
四川省科技富民强县专项计划项目
四川省"十二五"育种攻关项目(2011NE098-12-11)
关键词
北柴胡
种子
激素处理
光照
温度
出苗特性
Bupleurum chinense
seeds
hormone treatment
light
temperature
sprouting characteristics
