文献类型：期刊文献

中文题名：紫荆种子休眠解除及促进萌发的研究

英文题名：Study on Breaking the Seed Dormancy and Stimulating the Seed Germination for Cercis chinensis

作者：孙秀琴[1] 安蒲瑷[1] 李庆梅[1]

第一作者：孙秀琴

机构：[1]中国林业科学研究院林业研究所

年份：1998

卷号：11

期号：4

起止页码：407-411

中文期刊名：林业科学研究

外文期刊名：FOREST RESEARCH

收录：CSTPCD;;Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金：林业部1991~1996年林木种子检验方法修订课题

语种：中文

中文关键词：紫荆;种子;双重休眠;休眠解除;萌发

外文关键词：seeds of Cercis chinensis dual dormancy seed dormancy breaking seed germination stimulation

分类号：S793.701

摘要：研究结果表明：紫荆种子用浓Ｈ２ＳＯ４酸蚀３０ｍｉｎ后，再于１３～１７℃条件下混湿沙层积２０～３０ｄ即可解除休眠。最佳发芽条件为２０℃夜／３０℃昼，黑暗变温培养，其发芽率８２％，成苗率８０％，发芽指数９．４１，活力指数７３．７８，根茎长７．９２ｃｍ／株。若用２５０ｍｇ／Ｌ赤霉素水溶液浸泡种子２４ｈ，可代替湿沙层积，即发芽率９０％，成苗率８３％，发芽指数９．０９，活力指数７１．００，根茎长８．８１ｃｍ／株。很明显地促进了种子萌发和幼苗生长。
In this paper,the methods of breaking the seed dormancy and stimulating the seed germination for Cercis chinensis were studied. The results showed that the seed dormancy of this species could be broken through corrosion with high concentrated H 2SO 4 for 30 min and then with stratification in 13～17 ℃ for 20～30 d. The optimal germination results were obtained through culturing the seeds in darkness under 20 ℃ at night and 30 ℃ in daytime.The germination rate,the survival rate of seedlings,the germination index,the vitality index and the average total length of stem and root per individual were respectively 82%,80%,9.41,73.78 and 7.92 cm under these conditions,and those were respectively 90%,83%,9.09,71.0 and 8.81 cm if the seeds were soaked in solution of gibberellin for 24 h.