WU Xiao-jing,YANG Qing,ZHANG Guo-jun,et al. Effect of Salinity of Soil on Physio-biochemistry Indexes of Lycium barbarum[J].Northern Horticulture,2014,38(12):137-141.
土壤含盐量对枸杞生理生化指标的影响
- Title:
- Effect of Salinity of Soil on Physio-biochemistry Indexes of Lycium barbarum
- 文章编号:
- 1001-0009(2014)12-0137-05
- Keywords:
- Lycium barbarum; stress; salinity of soil; physic-biochemistry indexes
- 分类号:
- R 33
- 文献标志码:
- A
- 摘要:
- 以一年生枸杞扦插幼苗为试材，用0.2%、0.4%、0.6%、0.8%的土壤含盐量对其进行胁迫，以清水为对照，研究盐胁迫条件下渗透调节物质、叶绿素含量以及生长表相参数的变化。结果表明：Na+、K+、Cl- 3种离子在枸杞各器官中的含量不同，Na+和Cl-在叶中的含量最高，根中和茎中差异不显著，K+在各器官中的含量为叶＞茎＞根，3种离子在地上部分的含量均高于地下部分；随土壤含盐量的升高，Na+、Cl-、可溶性糖、脯氨酸含量均呈不同程度的上升；叶绿素含量在5月份差异不显著，在6、7、8月份随土壤含盐量的增高降低，光合能力减弱；存活率、生长率和耐盐表相值均随含盐量的升高，呈现不同程度的下降；各指标与耐盐表相值间存在着显著相关性，表明枸杞耐盐性的高低是多因素共同作用的结果；综合各指标认为，枸杞属于耐盐性强的植物，适合应用于滨海盐碱地区造林。
- Abstract:
- Taking one-year-old cutting seedlings of Lycium barbarum as material,osmotic regulation substances,chlorophyll content and growth appearance parameters were studied under the stress of 0.2%,0.4%,0.6%,0.8%,1.0% salinity of soil,with water as control.The results indicated that the content of Na+,K+ and Cl- in different organs were different.The content of Na+ and Cl- were the highest in leaves and were no significant differences in roots and stems.The content of K+ was also different among organs,leaves＞stems＞roots.The content of Na+,K+ and Cl-in overground parts were higher than that in underground parts.The content of Na+,Cl-,soluble sugar,proline increased with increasing salt concentration.The content of chlorophyll was no significant differences in May and decreased with increasing salt concentration in June,July and August.Survival rate,relative growth rate and salt appearances values decreased with increasing salt concentration.There was a significant correlation between salt appearances values and each index,which showsed that the level of salt tolerance of Lycium barbarum was the result of many factors working together.From the above analysis,it could be considered that Lycium barbarum had more salt-tolerance and was suitable for coastal saline areas for afforestation.
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备注/Memo
第一作者简介：武小靖（1988-），女，硕士研究生，研究方向为观赏园艺植物资源开发利用。E-mail：xiaojingwu163@163.com.
责任作者：杨俊明（1956-），男，博士，教授，现主要从事园林植物资源开发及遗传改良的研究工作。E-mail：yjmmail@126.com.
基金项目：国家林业科技支撑计划资助项目（2009BADB2B0105）。
收稿日期：2014-03-07