SHEN Jie,ZHANG Hui,ZHANG Lei,et al.Effect of Seawater Stress on Seed Germination of Trifolium repens[J].Northern Horticulture,2012,36(19):51-53.
海水胁迫对白三叶草种子萌发的影响
- Title:
- Effect of Seawater Stress on Seed Germination of Trifolium repens
- 文章编号:
- 1001-0009（2012）19-0051-03
- Keywords:
- Trifolium repens L.; seed germination; seawater stress
- 分类号:
- S 541+.2
- 文献标志码:
- A
- 摘要:
- 利用不同浓度的海水对白三叶草种子进行处理，研究其种子萌发和幼苗的生长情况。结果表明：随着海水浓度的增加，白三叶草种子的发芽率、发芽势、发芽指数、简化活力指数和主根长等指标均逐渐下降，即使1%的低浓度海水对其简化活力指数和主根长的影响也与对照差异显著，说明白三叶草种子对海水胁迫非常敏感； 但在1%较低浓度海水处理时，其发芽率、发芽势和发芽指数与对照相比差异不大；且当海水浓度较高时，少量萌发的种子所形成的幼苗，发育水平与对照相似，说明筛选抗盐碱白三叶草品种具有一定可行性。
- Abstract:
- The effects of various concentration of seawater on T.repens seed germination and seedling growth were studied in this paper.The results showed that the germination rate，germination percentage，germination index，vigor index and main root length of T.repens seed were decreased with increasing concentration of seawater.The significant differences of the seed vigor index and main root length were observed between the lower concentration(1%)seawater treatment and CK，so the seed of T.repens was very sensitive to seawater stress.While，there was not significant difference in the germination rate，germination percentage and germination index of T.repens seed between the lower concentration(1%) seawater treatment and CK，and seedling growth and development of T.repens treated with high seawater concerntration were similar to that of CK.It was possible to screening of varieties of T.repens resistant to salt and alkati.
参考文献/References:
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备注/Memo
第一作者简介：沈洁（1969-），女，硕士，副教授，现主要从事植物学的教学与研究工作。E-mail:shenjie1969@126.com.