| Free proline trends during seedling stage of ten staple alfalfa varieties in Ningxia with NaCl and water compound stress |
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| DOI：10.7606/j.issn.1000-7601.2008.03.30 |
| Key Words: NaCl water compound stress proline contain alfalfa |
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| Abstract: |
| An experi ment was conducted to study the free proline trends during seedling stage and give tentative evaluation about their capability to resist water and NaCl stress of ten staple alfalfa varieties in Ningxia with NaCl and water compound stress by using quadratic general spinning design ．The results showed dominant effect of free proline variation on all alfalfa varieties displayed positive effect except Longdong and Algonguin with negative effect in the case of NaCl stress which displayed negative effect in the case of water stress；Single effect displayed in all varieties free proline content increased at first and then decreased in serious NaCl stress and increased in serious drought；As for the interaction effect of water and NaCl on free proline variation five varieties such as CW301、Sanditi、Longdong、Zhaoyang and CW200displayed negative effect significantly with the order as Y CW301＝Ylongdong＞YCW200＝YSanditi＞Y Zhaoyang while the other varieties such as Algonguin 、Xingjiang 、Ningmu No1、Nei meng and Golden Empress displayed no significant to evaluate the resistance of ten staple alfalfa varieties to NaCl and drought according to their free proline content from high to low the following order may be drawn ：CW301＞CW200＞Zhaoyang ＞Golden Empress ＞Ningmu No1＞Algonguin ＞Nei meng ＞ Longdong ＞Sanditi ＞Xingjiang． |