| Drought tolerance identification of different oilseed flax varieties at germination stage under PEG stress |
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| DOI：10.7606/j.issn.1000-7601.2016.04.18 |
| Key Words: PEG stress oilseed flax variety germination stage drought tolerance |
| Author Name | Affiliation | | WANG Zong-sheng | Pingliang Agricultural Research Institute, Pingliang Gansu 744000, China | | ZHANG Jian-ping | Crop Research Institute, Gansu Academy of Agricultural Sciences, Lanzhou 730070, China | | MI Jun | Zhangjiakou Academy of Agricultural Sciences, Zhangjiakou Hebei 075000, China | | LI Wen-juan | Crop Research Institute, Gansu Academy of Agricultural Sciences, Lanzhou 730070, China |
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| Abstract: |
| The experiments were conducted to investigate and identify the response difference of drought resistance traits of different oilseed flax varieties at germination stage, which used 21% PEG-6000 simulation experiments by 14 new varieties of oilseed flax domestic. The results indicated that the nine indexes including relative germination emerge、relative germination rate、relative germ length and fresh weight、relative radicle length and fresh weight、relative germination index、vitality index and sprout index performances were not consistent. The drought resistance evaluation of oilseed flax need comprehensive consideration about multi-index. To use comprehensive consideration evaluation by integrating membership function values and drought resisting index weight, the D value ranged from 0.323 to 0.787, the drought resisting obvious difference. The best drought resisting of D value reached 0.868, was Jinya 11, following by Baya 12, its D value was 0.787. The D values of drought resistance of oilseed flax varieties in the last were 0.381 and 0.323, these were Yiya 4 and Jinya 10, respectively. |
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