摘要
为研究重要药用植物醴肠种子对土壤盐碱的耐受能力,利用不同浓度的海水胁迫处理醴肠种子,观察、分析海水胁迫对其萌发的影响。结果表明:醴肠种子的萌发需要光照,属喜光种子;1%以下浓度的海水对醴肠种子的萌发具有一定的促进作用,10%以下低浓度的海水,对醴肠种子的萌发率没有显著影响;综合发芽势与发芽指数2个活力指标,认为醴肠种子萌发时对3%以下浓度的海水具有一定的抗性。
In order to study on the E.prostrata seeds＇ tolerance to soil salinity,effect of seawater of different concentrations on the germination of E.prostrata seeds were studied.The results showed that E.prostrata seeds need light to germinate;seawater of lower than 1% concentration had a positive effect on eclipta prostrata seed germination,whereas seawater of lower than 10% concentration has no significant effect on the seed germination rate.Based on the two indicators of the germination vigor and germination index,it can be inferred that E.prostrata seeds could tolerate seawater of lower than 3% concentration.
出处
《北方园艺》
CAS
北大核心
2011年第19期158-160,共3页
Northern Horticulture
关键词
醴肠
种子萌发
海水胁迫
喜光种子
Eclipta prostrata
seed germination
seawater stress
light favored seeds
