摘要
对朝鲜碱茅种子在4种盐分NaCl、Na2SO4、Na2CO3、NaHCO3的7个不同浓度(0.3%、0.5%、0.7%、0.9%、1.1%、1.3%、1.5%)的胁迫下进行发芽试验,分别观测其发芽情况,胚根和幼苗的生长.结果表明:朝鲜碱茅种子的发芽率随盐分浓度的增加而降低.其耐盐顺序为Na2SO4>NaCl>NaHCO3>Na2CO3.
The germination percentage,the growth of embryonic root and seedling Puccinellia chinampoensisi were tested,and NaCl,Na 2 SO 4,Na 2 CO 3 and NaHCO 3 with seven concentrations(0.3%,0.5%,0.7%,0.9%,1.1%,1.3% and 1.5%) were used as the stress factors.The results showed that the germination percentage decreased with the increasing of salt concentration.The order of salt resistance was as follows:Na 2 SO 4〉 NaCl 〉NaHCO 3 〉Na 2 CO 3.
出处
《吉林师范大学学报(自然科学版)》
2012年第4期39-42,共4页
Journal of Jilin Normal University:Natural Science Edition
基金
National Nature Science Foundation China(30671491)
the Twelfth Five-Year Program for Science and Technology of Education Department of Jilin Province(20110162)
关键词
朝鲜碱茅
耐盐性
发芽率
Puccinellia chinampoensis
salt resistance
germination rate