CAO Ling,LIU Xi-jing,LI Nan-xi,et al.Effects of NaCl Stress on Seeds Germination and Seedling Growth of Celery Varieties[J].Northern Horticulture,2013,37(15):20-23.
NaCl胁迫对芹菜种子萌发和幼苗生长的影响
- Title:
- Effects of NaCl Stress on Seeds Germination and Seedling Growth of Celery Varieties
- 文章编号:
- 1001-0009(2013)15-0020-04
- Keywords:
- salt stress; salt tolerance; celery; seed germination; seedling growth
- 分类号:
- S 636.3
- 文献标志码:
- A
- 摘要:
- 以“京芹一号”、“博克”、“加州王”、“夏芹”、“日本小香芹”5个芹菜品种为试材，研究了0、30、60、90、120 mmol/L的NaCl溶液胁迫对芹菜种子萌发及幼苗生长的影响。结果表明：随着NaCl浓度的升高，盐胁迫对芹菜种子萌发和幼苗生长具有抑制、促进/抑制双重作用，30 mml/L NaCl浓度对部分品种的种子萌发和幼苗生长均具有促进作用；各指标的相对盐害率表现出较大差异，活力指数、根长、鲜重、干重对盐胁迫反应敏感，发芽率、发芽势、发芽指数不敏感；根据综合盐害率，在种子萌发和幼苗生长初期，“博克”和“夏芹”的耐盐性最强，“京芹一号”、“日本小香芹”耐盐性最弱。
- Abstract:
- Taking ‘Jingqinyihao’,‘Boke’,‘Jiazhouwang’,‘Ribenxiaoxiangqin’,‘Xiaqin’ five celery varieties as materials,the effects of NaCl stress(0,30,60,90,120 mmol/L NaCl) on germination and seedling growth stage were studied.The results showed that the seed germination and seedling growth were inhabited,promoted/inhabited as the salt concentration increased.Moreover,NaCl stress (30 mmol/L) had beneficial effect on germination and seedling growth.The response of index exhibited significant differences on relative salt damage rate.The most sensitive index were vigor index (VI),radical length (RL),hypocotyl length (HL),fresh weight (FW) and dry weight (DW) and the least sensitive index were seed germination percentage (GP),germination energy (GE) and germination index (GI).According to the comprehensive salt damage rate,‘Boke’ and ‘Xiaqin’ were the most resistant,and ‘Jingqinyihao’ and ‘Xiaoxiangqin’ were the most sensitive varieties at germination stage and early seedling growth.
参考文献/References:
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备注/Memo
第一作者简介：曹玲(1989-)，女，硕士研究生，研究方向为蔬菜种植与栽培生理。E-mail：caoling4sheng@126.com.