HE Qiang,DAI Zhi-guo.Identification of Salt Tolerance of Hippophaerhamnoides L.at Seedling Stage[J].HEILONGJIANG AGRICULTURAL SCIENCES,2012,(11):99-102.
沙棘苗期耐盐性鉴定
- Title:
- Identification of Salt Tolerance of Hippophaerhamnoides L.at Seedling Stage
- 文章编号:
- 1002-2767（2012）11-0099-04
- Keywords:
- Hippophae rhamnoides L.; seedling stage; salt tolerance
- 分类号:
- S793.6
- 文献标志码:
- A
- 摘要:
- 为探索沙棘苗期耐盐性的作用机理,用6种沙棘优良品种为材料对其盐胁迫下苗期株高、干重、脯氨酸含量及相对电导率等指标进行测定分析。结果表明：测试的各项指标均达到了显著差异，这说明在盐胁迫下表现出的株高、干重、相对电导率的变化和植物体内脯氨酸含量在一定程度上反映了植物的抗逆性，抗逆性强的品种往往积累较多的脯氨酸。因此，测定脯氨酸含量和株高、干重及相对电导率可以作为沙棘抗盐碱育种的生理指标。
- Abstract:
- In order to explore the mechanism of salt resistance of Hippophae rhamnoides L.,using six varieties as materials,the indicators such as proline content,seedling height,dry weight and relative electric conductivity were analyzed to evaluate the salt tolerance of Hippophae rhamnoides L.at seedling stage.The results indicated that there were significant difference among all indicators，the change of seedling height,dry weight and relative electric cunductivity and the proline content could reflect the stress resistance to a certain extent.The resistant varieties accumulate more proline than non-resistant varieties,the proline content,seedling height,dry weight and relative electric conductivity could be used as indicators of stress resistance identification of Hippophae rhamnoides L.breeding.
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备注/Memo
第一作者简介：贺强（1985-），男，黑龙江省绥棱县人，在读硕士，从事生物技术研究。E-mail:heqiang1985@163.com。