摘要
为了揭示野皂荚种子萌发的特性,采用浓H2SO4酸蚀和高温水处理,在不同温度、光照条件的培养箱中进行种子萌发试验。结果表明:野皂荚种子直径约10mm,千粒重(10.583±0.61)g;其种子休眠是由硬实引起,属于强迫休眠;破除其种子休眠的适宜方法可采用浓H2SO4酸蚀30min,萌发率、发芽势、发芽指数分别达88%、75%、5.91以上;最适发芽温度为25℃,发芽率、发芽势、发芽指数分别为84%、50%、7.78;光照对其种子萌发有一定的抑制作用。
In order to reveal the seed germination characteristics of Gleditsis microphylla, the seeds were pre-treated by concentrated H2SO4 corrosion and hot water, and cultured in different temperatures and illumination conditions. The results indicated that the seed diameter was about 10 mm and the weight per thousand seeds was（10.583 ± 0.61）g. The seeds had the characteristic of forcing dormancy that was caused by hard seed vessels. The dormancy could be released by sulfuric acid treatment. The most appropriate treatment time was 30 min,resulting in higher germination rate（88%）,germination power（75%）and germination index（5.91）. The optimum germination temperature was 25℃ and the germination rate, germination power and germination index was 84%, 50%, 7.78, respectively under such conditions. The seed germination was inhibited by light to some extents.
出处
《西北林学院学报》
CSCD
北大核心
2013年第6期46-50,共5页
Journal of Northwest Forestry University
基金
国家林木(含竹藤花卉)种质资源平台(2012年度)
国家林业公益行业专项重大项目(201204307)
关键词
野皂荚
酸蚀
温度
光照
种子萌发
Gleditsis microphylla
sulfuric acid
temperature
light
seed germination
