YUAN Hui-yan,MEI Xiao-dong,HU Lei,et al.Effect of Water-retaining Agent on Seed Germination and Seedling Growth of Festuca arudinacea?Under Drought Stress[J].Northern Horticulture,2014,38(01):72-74.
干旱胁迫下保水剂对高羊茅种子萌发及幼苗生长的影响
- Title:
- Effect of Water-retaining Agent on Seed Germination and Seedling Growth of Festuca arudinacea?Under Drought Stress
- 文章编号:
- 1001-0009（2014）01-0072-03
- 分类号:
- S 540.1
- 文献标志码:
- A
- 摘要:
- 以高羊茅“贝克”为试材，研究了4种浓度保水剂在高羊茅建坪时对种子萌发和植株生长发育的影响。结果表明：保水剂能增加土壤的含水率，减缓土壤表面的蒸发，经过4周的干旱胁迫，其中以120 g/m2保水剂处理的土壤含水率最高，比对照高110.22%，效果最显著；建坪时施用保水剂后，提高了高羊茅种子的发芽势和发芽率，降低了叶片细胞膜的相对透性，对苗高也有促进作用，其中以90 g/m2和120 g/m2效果最佳。
- Abstract:
- Taking Festuca arudinacea‘Beike’ as test material,the effects of 4 kinds of water-retaining agent concentration on seed germination and seedling growth of Festuca arudinacea under drought stress were studied.The results showed that the water-retaining agent increased soil water percentage and retarded evaporation from soil surface.After 4 weeks of drought stress,the soil water content of 120 g/m2 of water-retaining agent treatment was the highest,which was 110.22% higher than CK,and had the most significant effect.The water-retaining agent also improved the seed germination energy and germination rate of Festuca arudinacea,reduced cell membrane permeability,and had a promoting effect on seedling height,of which 90 g/m2 and 120 g/m2 was the best.
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备注/Memo
第一作者简介：袁惠燕（1976-），女，硕士，讲师，现主要从事园林工程管理和教学工作。E-mail：yuanhy@suda.edu.cn.