CAJ | 학술논문

为探讨大黄龙船花(Ixora collinea‘Gillettese How’)的耐盐特性，对NaCl胁迫下大黄龙船花扦插幼苗的生长和生理生化指标进行了研究。结果表明，NaCl胁迫处理后大黄龙船花叶片中的丙二醛含量、相对电导率和脯氨酸含量升高，膜伤害程度加大。叶片相对电导率、丙二醛含量和脯氨酸含量与NaCl浓度间存在显著正相关关系。随着盐胁迫浓度的增加，叶片总叶绿素、可溶性蛋白质含量呈下降趋势，两者与NaCl浓度间呈显著负相关关系。可溶性糖含量、SOD活性与NaCl浓度间的相关性不显著。较低浓度的盐胁迫(0.2%~0.6%)对大黄龙船花的生长有轻微的抑制作用，而0.8%~1.5%的高浓度盐胁迫显著影响生理生化指标。
위탐토대황룡선화(Ixora collinea‘Gillettese How’)적내염특성，대NaCl협박하대황룡선화천삽유묘적생장화생리생화지표진행료연구。결과표명，NaCl협박처리후대황룡선화협편중적병이철함량、상대전도솔화포안산함량승고，막상해정도가대。협편상대전도솔、병이철함량화포안산함량여NaCl농도간존재현저정상관관계。수착염협박농도적증가，협편총협록소、가용성단백질함량정하강추세，량자여NaCl농도간정현저부상관관계。가용성당함량、SOD활성여NaCl농도간적상관성불현저。교저농도적염협박(0.2%~0.6%)대대황룡선화적생장유경미적억제작용，이0.8%~1.5%적고농도염협박현저영향생리생화지표。
The aim was to analyze thesaltresistance ofIxora collinea‘Gillettese How’. The growth and physiology indexes in ‘Gillettese How’ seedlings were studied under NaCl stress. The results showed that the seedling growth was inhibited significantly under salt stress. The MDA and proline contents, relative electric conductivity and membrane damage increased, and they had signiifcant positive correlations with NaCl concentration. The contents of chlorophyll and soluble protein in leaf decreased and negative correlation with NaCl concentration. However, there were no significant correlation between soluble sugar content, superoxide dismutase (SOD) activity and NaCl concentration. The growth of ‘Gillettese How’ was inhibited weakly under low NaCl stress (0.2%–0.6%), but it was affected greatly under high NaCl (0.8%–1.5%) stress.