盐碱胁迫下闽楠和楠木的抗性生理研究

摘要

采用闽楠和楠木两个物种作为试验材料,配制4种不同浓度的盐碱溶液：200,100,50,0(对照)mmol•L－1,模拟重度盐碱、中度盐碱、轻度盐碱。研究在不同盐碱胁迫条件下闽楠和楠木生理生化指标的动态变化。试验＞结果表明：楠木的最高耐盐浓度是100 mmol•L－1,闽楠的最高耐盐浓度是200 mmol•L－1,可见闽楠相比于楠木具有较好的耐盐碱适应能力。%We selected Phoebe bournei and P.nanmu as the experimental materials,and treated them with 0,50,100, 200 mmol • L-1 saline-Alkaline Stress solution respectively to imitate light,middle and high level of saline-Alkaline Stress.The physiological,biochemical data,and its dynamic change of P .bournei and P .nanmu in the condition of dif-ferent saline-alkali stress were studied.The results showed that the highest salt-alkaline tolerance concentration of P . bournei and P .nanmu was respectively.