摘要
HCl、NaOH、Na2CO3、NaCl、赤霉素(GA3)、芸薹素内酯(BR)浸种处理,探讨溶液浓度、浸种时间对野慈姑(Sagittaria trifolia Linn.)种子萌发的影响。结果表明,NaOH溶液浸种处理可以作为快速解除野慈姑种子休眠、提高发芽率的方法,最佳处理为25%NaOH溶液浸种4 h,可使野慈姑种子萌发率达73.00%。HCl溶液浸种处理仅能解除部分野慈姑种子的休眠,20%HCl溶液浸种4 h野慈姑种子的发芽率最高,为48.33%。Na2CO3、NaCl、GA3、BR溶液浸种处理,野慈姑种子的最高发芽率分别仅为10.33%、9.33%、11.33%、9.67%,不能用于解除野慈姑种子的休眠。
The effect of solution concentration of HCl, NaOH, Na2CO3, NaCl, gibberellic acid （GA3 ） and brassinolide （BR） and seed soaking time on the germination of Sagittaria trifolia was studied. Soaking the seeds in 25% NaOH for four hours was the fastest method to break dormancy and increase germination rate to 73%. Soaking in 20% HCl also for four hours partly broke dormancy and improved germination to 48%. The highest S. trifolia germination rate obtained by soaking the seed in GA3, Na2 CO3, BR, and NaCl was 11%, 10%, 10%, and 9% respectively, but these chemicals were not suitable for breaking dormancy.
出处
《杂草科学》
2014年第2期5-9,共5页
Weed Science
关键词
化学方法
野慈姑种子
解除休眠
chemical methods
Sagittaria trifolia
seed
dormancy
