HE Hui-liu.Effect of Exogenous Salicylic Acid on the Seeds Germination Characters of Impatiens balsamina L.Under NaCl Stress[J].Northern Horticulture,2013,37(13):75-77.
外源水杨酸对盐胁迫下凤仙花种子萌发特性的影响
- Title:
- Effect of Exogenous Salicylic Acid on the Seeds Germination Characters of Impatiens balsamina L.Under NaCl Stress
- 文章编号:
- 1001-0009（2013）13-0075-03
- Keywords:
- Impatiens balsamina ?L.; salicylic acid(SA); salt stress; seed germination; physiological characteristics
- 分类号:
- S 681.1
- 文献标志码:
- A
- 摘要:
- 以凤仙花成熟种子为试材，研究比较了水杨酸（SA）处理对盐胁迫下凤仙花种子的发芽势、发芽率、发芽指数等萌发指标，胚根长、下胚轴长及幼苗的可溶性糖、可溶性蛋白质与丙二醛(MDA)含量等的影响。结果表明：SA处理后种子萌发指标和幼苗生理指标均有不同变化。其中SA浓度为50 mg/L时，萌发指标均达到最大值；幼苗MDA含量为最小值。50 mg/L的SA能够有效的缓解盐胁迫对凤仙花种子及幼苗产生的伤害，提高种子及幼苗的抗盐性。
- Abstract:
- Taking mature Impatiens balsamina L.seeds as test materials，the effects of SA under NaCl stress on the indexes such as the germination vigor，germination rate，germination index，the average radicle length and average hypocotyl length were determined.In addition，such indexes as soluble sugar，soluble protein and malondialdehyde (MDA) contents of the seedlings were also measured.The results showed that SA treatment caused significant effects on the germination indexes of the seeds and the physiological indexes of the seedlings.The seeds treated by SA at the concentration of 50 mg/L had the most significant increases in all indexes.MDA content in the seedlings decreased to the minimum value 50 mg/L SA could effectively alleviate the damages of salt stress to the seeds and seedlings of Impatiens balsamina L.and promote the salt resistance of the seeds and seedlings.
参考文献/References:
[1]陈俊愉.中国花卉品种分类学[M].北京:中国林业出版社,2001.
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备注/Memo
作者简介：何会流(1968-)，男，重庆人，硕士，副教授，现主要从事园林植物逆境生理研究工作。