期刊论文

中文

中国烟草学报

1004-5708

2008

14

4

28-32

10.3321/j.issn:1004-5708.2008.04.006

:国家烟草局 05-02:省烟草局资助项目

本校为其他机构

采用液培试验研究了硫对烤烟生育期、主要农艺性状、关键酶活性、MDA含量和根系活力等生理生化指标的影响。结果表明,0 mmol/L和2 mmol/L处理的烤烟株高、茎围和干物质积累量显著高于其它处理;2 mmol/L和4 mmol/L处理的烤烟叶片的硝酸还原酶活性较高;从旺长到成熟期SOD酶活性随硫浓度的升高而升高,团棵期2 mmol/L处理的SOD活性最低;从团棵期到现蕾期,2 mmol/L处理的MDA含量最低,其它处理MDA含量随硫浓度的升高而升高,在成熟期各处理烤烟叶片MDA含量差异不显著;0 mmol/L和2 mmol/L处理烤烟的根系活力随硫浓度升高而升高,4、8、16、32 mmol/L处理的根系活力随硫浓度的升高而降低。

The solution culture is used to study the effects of sulfur concentration （0 - 32 mmol/L） on growth and development, key enzyme activity, MDA content and root activity of tobacco. The result showed that the dry matter accunmlation and plant height and stem perimeter of 0 mmol/L and 2 mmol/L treatments were higher significantly than other treatments. The NR activity of 2 mmol/L and 4 mmol/L treatments was higher than other treats, but the SOD activity was lower in 2 mmol/L treatment in rosette stage, the SOD activity was raised with sulfur con...