期刊论文

Zhou Jian

中文

光谱学与光谱分析

1000-0593

2008

28

2

418-421

10.3964/j.issn.1000-0593.2008.02.043

河南科技学院重点科研基金项目（040112）； 湖南省林业科技重点项目（01-18）资助；

本校为其他机构

为检测合欢幼苗的抗碱胁迫能力,文章试验利用可见分光光度法测定了碱胁迫下合欢幼苗体内的丙二醛、可溶性糖、脯氨酸含量及POD、SOD活性,分析这些生理指标在不同处理浓度、不同处理时间下的变化规律,探求碱胁迫下合欢幼苗的抗逆生理机制。随着Na_2CO_3处理浓度的增加,幼苗叶片中MDA和可溶性糖含量,均呈递增趋势,当处理浓度低于75mmol·L~(-1),两者含量变化较平缓,而浓度高于75mmol·L~(-1)时,则含量急剧增加,各处理间差异显著;脯氨酸含量也呈递增趋势,当处理浓度低于100mmol·L~(-1),变化较平缓,浓度高于100mmol·L~(-1)时,含量则急剧增加,各处理间差异显著;SOD和POD活性变化趋势一致,都呈单峰曲...

There is a large area of saline-alkali soil in our country, and soil alkalization is always a problem affecting urban gardening. To examine the capacity of alkaline resistance of Albizzia julibrissin Durazz seedlings, the contents of MDA, soluble sugar and proline, and the activity of POD and SOD in Albizzia julibrissin Durazz tree body were measured by means of visible spectrophotometry. Also, the change patterns of the five indexes with different treatment concentration and time were analyzed. Attempts were then made to elucidate the physiolo...