不同水稻品种幼苗期的耐寒生理鉴定及其利用

试验结果表明,在相同低温胁迫条件下,新香优63和9910两个水稻品种幼苗无论是导电率,还是MDA的含量均高于金优402幼苗,而可溶性糖和总叶绿素含量却明显低于金优402,说明金优402品种具有较强的耐寒性．     

Responses of rice growth to copper stress under free-air CO2 enrichment （FACE）

The responses of rice to the second degree contamination of copper were studied by pot experiments under free-air CO2 enrichment （FACE） with 570 μmol ·mol^-1 of CO2. The results showed that the content of copper in rice leaves was reduced with the CO2 concentration reaching 570 μmol· mol^-1 and this happened more significantly under the second degree contamination of copper. Under FACE, activities of superoxide dismutase （SOD） enzyme in rice leaves treated by copper contamination were induced, whereas the contents of glutathione （GSH） and glutathione disulfide （GSSG） had no significant difference from the control. In the presence of ambient CO2, activities of SOD enzyme treated by copper pollution were suppressed during the whole rice growth, however, the contents of GSH and GSSG were induced at tillering and jointing stages, and then restored to the control levels in later growth under the second degree contamination of copper. With the rice growing, the content of malondialdehyde （MDA） rises continuously, but there had been no significant difference between the treatments at the same growth stage. Further studies are needed on the response mechanism of rice to Cu stress under elevated CO2.     

在Visual Studio.Net中融合MDA和XP的方法研究

分析软件工程技术的现状,指出其中存在的一些问题,得出应用新技术的必要性。通过研究和实验,提出了在Visual Studio.Net中开发中同步工程的方法,以实现MDA和XP技术的融合,并以一个应用实例验证该方法的有效性。