银水苏种子发芽特性的研究  

Study on Seed Germination of Stachys 'Silver Carpe'

作　　者：史燕山[1] 骆建霞[1] 李欣[1] 宗晶莹[2] 卢兴霞[1] 刘慧琴[1] 

机构地区：[1]天津农学院园艺系,天津300384 [2]天津市林业局,天津300320

出　　处：《种子》2009年第1期44-46,共3页Seed

基　　金：天津农委项目(编号:0703010)

摘　　要：研究不同温度对不同年度采收的银水苏种子发芽特性的影响，对种子发芽率、种子发芽强度及胚根长度进行了测定分析。结果表明：不同年度采收的银水苏种子的发芽率存在极显著差异，其中2006年的种子比2005年的种子发芽率高且发芽速度快；2006年采收的种子胚根平均长度极显著高于2005年的，发芽质量好，且以25℃下长势最好；贮藏时间不同，种子萌发最适宜的温度不同，2006年采收的银水苏种子发芽最适温度为25℃，而2005年则最适温度为30℃。综合分析认为，在自然阴凉干燥贮藏条件下，银水苏种子不宜采后隔年播种；种子发芽适宜温度为20～30℃，最适温为25℃。The seed germination rate, germination speed and radical length were determined to study the effects of distinct temperature on the germination of Stachys ‘Silver Carpet＇ seeds collected in two different years. The results indicated that there were significant differences in the rate of germination between the seeds collected in the year of 2006 and 2005 respectively ; Both the germination rate and speed of 2006 seeds were higher those that of 2005. The average radical length of the seeds collected in 2006, with best germination quality in the temperature of 25 ℃ , was significantly longer than that in 2005. The most favorable germination temperature varied if the amount of time the seed storage was different. The most favorable germination temperature for the seeds collected in 2006 was 25 ℃ but for those collected in 2005 was 30 ℃. In sum, it is not suitable for Stachys ‘Silver Carpet＇ seeds to be sowed after one year storage in nature drying conditions ; acceptable germination temperature range was 20 - 30 ℃ and the most favorable temperature for the germination was 25 ℃.

关 键 词：银水苏 种子 发芽 

分 类 号：S685[农业科学—观赏园艺]