盐胁迫对二色补血草根系活力的影响(英文)

• 作 者: 林莺 范海
• 机 构: 滨州医学院中西医结合学院,山东师范大学生命科学学院,
• 出 处: Agricultural Science & Technology
• 发表日期: 2013年06期
• 关键词: 二色补血草 根系活力 bicolor roots physiological Roots declined 盐生植物 生理指标 length

[目的]研究盐胁迫对二色补血草根系活力的影响。[方法]分别利用0、100、200、400mmol/LNaCl处理盐生植物二色补血草(Linminoium bicolor(Bunge)Kuntze),2周后分别测定根系生长量、根系活力等生理指标的变化。[结果]随着盐浓度的升高,根系活力先升高后下降。[结论]二色补血草对较低浓度的NaCl处理有一定的应激能力;在较高浓度的盐胁迫下,二色补血草根系能够保持较高的活力;但随着盐胁迫的加重,根系受到损伤,活力下降。

[Objective] The research aimed to study the effect of salt stress on root activity of two color Limonium chinense. [Method] The halophytes (Lincomycin bicolor (Bunge) Kuntze) were treated with 0, 100, 200 and 400 mmol / L NaCl for two weeks and the changes of root growth and root vigor were measured. [Result] With the increase of salt concentration, root activity increased first and then decreased. [Conclusion] The two kinds of Limonium bicolor have a certain degree of stress ability to NaCl treatment at lower concentration. Under higher salt stress, the rhizome of two color Limonium can maintain high vitality. However, with the salt stress aggravating, Root damage, vitality decline.