摘要
通过对种子进行光照、温度、浸种时间和赤霉素处理,统计其发芽率、发芽势、发芽指数和胚根长度。结果表明：在光照条件下,152、0、25℃时种子的发芽率分别为83.33%、82.67%、80.67%,25℃时发芽势最高为68%,发芽指数最大为7.92,胚根最长为1.24 cm;在光照条件下152、02、53、03、5℃的发芽率均显著高于黑暗;浸种24 h发芽率最高;经502、003、505、00 mg/L的赤霉素处理的种子萌发各指标都低于对照（蒸馏水）。初步探明,独一味种子无休眠现象;适宜萌发条件为光照下,温度20-25℃,属中温萌发型,高温40℃和低温10℃对种子萌发有抑制作用。
.The germination characteristics of Lamiophlornis rotata seeds were studied though using light, temperature, seed soaking and gibberellic acid treatments, the effects of different treatments on percentage germination, germination energies,germination indexes and length of radicula were investigated. Result showed that under the condition of light,the percentage germination of three temperatures （ 15,20,25 ℃ ） were 83.38 %, 82. 67%, 80. 67 %, respectively. At 15 ～30 ℃, percentage germination under light condition were higher than dark treatments. The highest of germination energies, germination indexes and length of radicula were 68%, 7. 92,1.24 era, respectively. The highest percentage germination with different times seed soaking was 24 hours. The four indexes of gibberellic acid treatments were lower than compari son. Conclusion： The seed of L. rotata wasn＇t phenomenon of dormancy. The most suitable germination temperature was 20～25℃ with light and the seeds of L. rotata belong to middle temperature type. The percentage germination was restrained at the highest temperature 40℃ and the lowest temperature 10℃.
出处
《北方园艺》
CAS
北大核心
2008年第11期195-197,共3页
Northern Horticulture
基金
科技部“十一五”资助项目(2006BAC01A11)
康定恩威高原药材野生抚育基地有限责任公司资助项目
关键词
独一味
种子
萌发
温度
赤霉素
Larniophlornis rolate ；Seed
Germination； Temperature ； Gibberellic
