不同处理对领春木种子萌发的影响  

Effect of Different Treatments on Seed Germination of Euptelea

作　　者：田凌鸿 刘方虎 张宏生 TIAN Linghong;LIU Fanghu;ZHANG Hongsheng(Lizi Forest Farm of Xiaolongshan Forestry Protection Center in Gansu Province,Tianshui Gansu 741004,China;Shanmen Forest Farm of Xiaolongshan Forestry Protection Center in Gansu Province,Tianshui Gansu 741002,China;Key Laboratory of Secondary Forest Cultivation in Gansu Province,Tianshui Gansu 741002,China)

机构地区：[1]甘肃省小陇山林业保护中心李子林场,甘肃天水741004 [2]甘肃省小陇山林业保护中心山门林场,甘肃天水741002 [3]甘肃省次生林培育重点实验室,甘肃天水741002

出　　处：《青海农林科技》2024年第3期83-86,94,共5页Science and Technology of Qinghai Agriculture and Forestry

基　　金：甘肃省科技计划资助(22JR5RA767)。

摘　　要：本试验通过设置吸水时间、不同贮藏时间、低温层积、温度和光照、外源激素等不同处理方式对领春木种子发芽率进行研究。结果表明,领春木种子在浸泡24 h时吸水率最高为15.3%;常温贮藏90 d的领春木种子萌发率最高,达到了83.33%;低温层积时间越长领春木种子萌发率越低;25℃恒温且在1000 Lux光照条件下领春木种子的发芽率达到了86.67%,且光条件更适合领春木种子的萌发;3种外源激素处理,500 mg/L浓度NAA与200 mg/L浓度ABT处理领春木种子发芽率差异不大,NAA浓度为500 mg/L时发芽率最高,为86.67%,IBA处理领春木种子的发芽率效果最差。In this study,Different treatment methods such as water absorption time、different storage time、low temperature stratification、temperature and light、and exogenous hormones were used to study the seed germination rate of Euptelea pleiospermum.The results showed that the highest water absorption rate was 15.3%after soaking for 24 h.The highest seed germination rate was 83.33%when the seeds were stored at room temperature for 90 days.The longer the low-temperature stratification time was,the lower the seed germination rate was.Under constant temperature of 25℃and 1000 Lux light condition,the germination rate reached 86.67%,and the light condition was more suitable for seed germination.There was little difference in germination rate between the 500 mg/L NAA and 200 mg/L ABT treatments with three exogenous hormone treatments.The highest germination rate was 86.67%when the NAA concentration was 500 mg/L.IBA treatment had the worst effect on seed germination rate.

关 键 词：领春木 种子萌发 低温层积 外源激素 

分 类 号：Q945.34[生物学—植物学]