ZHANG Li-lei,WANG Shao-ping.Effect of Salt Stress on the Seed Germination of Tagetes patula[J].Northern Horticulture,2012,36(23):86-88.
盐胁迫对孔雀草种子发芽的影响
- Title:
- Effect of Salt Stress on the Seed Germination of Tagetes patula
- 文章编号:
- 1001-0009（2012）23-0086-03
- Keywords:
- Tagetes patula; salt stress; seed germination
- 分类号:
- S 681.904+.1
- 文献标志码:
- A
- 摘要:
- 采用0（CK）、2、4、8、12 g/L不同浓度NaCl溶液处理的孔雀草种子，并置于（25±1）℃光照培养箱中进行盐胁迫试验，测定其发芽率、发芽势、发芽指数及鲜重等指标，研究盐胁迫对孔雀草种子发芽的影响。结果表明：对照及NaCl溶液浓度为2 g/L时，种子的发芽率最高、鲜重最大；当NaCl溶液浓度为12 g/L时，发芽率只有13.15%，说明低浓度的盐溶液可以促进种子萌发，高浓度的盐溶液则会推迟种子发芽；当NaCl溶液浓度大于2 g/L时，种子的发芽势明显下降；随着NaCl溶液浓度的增加，孔雀草种子的发芽率、发芽势、发芽指数等指标呈明显下降的趋势，平均发芽时间随着NaCl溶液浓度的增加而延长。
- Abstract:
- Putting the Tagetes patula seeds which was conducted by 0 (CK),2,4,8,12 g/L these five different concentrations of NaCl solution into （25±1）℃ light incubator to do a salt stress experiment，and the germination rate，germination potential，germination index，the fresh weight of index and other indexes were determined.The results showed that comparing to the condition of when the NaCl solution was 12 g/L，the germination was only 13.15%，which stated that the fresh weight of index and low concentration of salt solution could promote seed germination，and the high concentration of salt solution would postpone seed germination.When the concentration of NaCl solution was higher than 2 g/L，the seed germination potential decreased obviously.With the increasing of the NaCl concentration,the Tagetes patula seeds’ germination rate，the germination potential，germination index and other indexes had a obvious trend of decreasing，while the average germination time would extend as the NaCl solution concentration increased.
参考文献/References:
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备注/Memo
第一作者简介：张立磊（1978-），女，硕士，讲师，研究方向为园林植物种质资源利用与生态规划及植物设计。E-mail：366893563@qq.com.