紫苏种子萌发特性的研究  

Study on the Germination Characteristic of Perilla Frustescens.Seeds

作　　者：马玉涛[1] 惠荣奎[1] 刘焰[1] 

机构地区：[1]华中农业大学植物科学技术学院,湖北武汉430070

出　　处：《种子》2009年第11期49-51,55,共4页Seed

摘　　要：为了明确药用紫苏种子的萌发特性,研究了基质、光照、pH值、水势和盐分对紫苏种子萌发的影响。结果表明:紫苏种子具有广泛的土壤适应性,以农田土最为适宜;在全黑暗条件下发芽率最高,为85.8%;在pH值为4.0～6.3之间均可萌发;萌发率在水势0～-0.6MPa范围内从78.3%降至4.2%,即紫苏种子在干旱的环境下仍可萌发;紫苏种子耐盐性较强,当NaCl浓度为160mmol/L时,种子萌发率仍高达65.8%.紫苏具有一定的抗干旱和抗盐胁迫特性,可作为育种的参考依据之一。In order to identify the germination behavior of seeds of Perilla Frustescens. , a kind of medicinal plants,ground substance,light,pH,osmoticscens and salt stress,which have effect on the seeds were studied. The results showed that the seeds had wide adaptability to soil, optimum of farmland. The highest germination rate of Perilla Frustescens. was 85.8% under no lighting. The seeds of Perilla Frustescens. could germination at any time diaring the value of ph 4.0 to 6.3. germination rate dropped from 78.5% to 4.2% under osmoticscens between 0 and - 0.6 MPa. indicated that seeds of Perilla Frustescens. could germinate still at drought stress. The seeds of Perilla Frustescens. have strong trait of salt stress, when the concentration of NaC1 was 160 mmol/L, the germination rate was as higher as 65.8%. Perilla Frustescens. could be regarded as a reference of breeding,owing to have a certain characteristic of drought and salt stress.

关 键 词：紫苏 种子 萌发特性 

分 类 号：S567.2[农业科学—中草药栽培]