| Comparative experiment on drought-resistant characteristics of different oil sunflower varieties |
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| DOI：10.7606/j.issn.1000-7601.2010.04.18 |
| Key Words: oil sunflower drought-resistant characteristic physiological index membership function method clus-tering analysis |
| Author Name | Affiliation | | HU Shuping | Agronomy College, Inner Mongolia Agricultural University, Huhhot 010019, China | | GAO Julin | Agronomy College, Inner Mongolia Agricultural University, Huhhot 010019, China | | MA Jie | Bayannaoer Academy of Agricultural Sciences, Shanba 015400, China | | ZHANG Wei | Chifeng Academy of Agricultural Sciences, Chifeng 024031, China | | AN Yulin | Inner Mongolia Academy of Agricultural Sciences, Huhhot 010031, China | | YU Haifeng | Inner Mongolia Academy of Agricultural Sciences, Huhhot 010031, China |
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| Abstract: |
| 30 hybrid oil sunflower varieties (series)which were widely planted in Inner Mongolia’s main producing area were used as materials in this experiment. At filling stage, 25% PEG6000 was used on leaves for drought stress
simulation and 6 indexes (REC, RWC, SOD, POD, CAT and Pro)relating to drought-resistant characteristics were ana-lyzed. The synthetical drought resistance was estimated by membership function method and validated by clustering analysis, and the similarity degree of these two methods was 76.67 %. The drought-resistant types of the 30 cultivars were divided into 4 types in the estimated result, and they were separately strong resistance, resistance , middle resistance and weak resistance. There were 5 cultivars in the type of strong resistance, namely KD5, ACR, NKZ3, AK62 and BKZ9. |
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