| Evaluation and screening of drought resistance in shanlan upland rice(oryza sativa) germplasm resource during early growth stage |
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| DOI：10.7606/j.issn.1000-7601.2018.02.25 |
| Key Words: Shanlan upland rice germinating stage seedling stage drought resisitance evaluation screening |
| Author Name | Affiliation | | TANG Li-qiong | Institute of Food Crops, Hainan Academy of Agricultural Science/Key Laboratory of Crop Genetics and Breeding of Hainan Province, Haikou, Hainan 571100, China | | YAN Xiao-Wei | Institute of Food Crops, Hainan Academy of Agricultural Science/Key Laboratory of Crop Genetics and Breeding of Hainan Province, Haikou, Hainan 571100, China | | TANG Qing-jie | Institute of Food Crops, Hainan Academy of Agricultural Science/Key Laboratory of Crop Genetics and Breeding of Hainan Province, Haikou, Hainan 571100, China | | XU Jing | Institute of Food Crops, Hainan Academy of Agricultural Science/Key Laboratory of Crop Genetics and Breeding of Hainan Province, Haikou, Hainan 571100, China | | ZHU Hong-lin | Institute of Food Crops, Hainan Academy of Agricultural Science/Key Laboratory of Crop Genetics and Breeding of Hainan Province, Haikou, Hainan 571100, China | | WANG Xiao-ning | Institute of Food Crops, Hainan Academy of Agricultural Science/Key Laboratory of Crop Genetics and Breeding of Hainan Province, Haikou, Hainan 571100, China |
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| Abstract: |
| To confirm drought resistance differences and screen germplasm resources of strong drought resistance, 20 Shanlan upland rice germplasm resources were evaluated and analysed by simulating drought stress using PEG during germinating stage and seedling stage. The results showed that the order of drought resistance among germplasm resources was different using different evaluation indexes. There was significant difference of drought resistance among cultivars of Shanlan upland rice. The drought resistance was significantly positive correlated between germinating stage and seedling stage, drought resistance of L6, L30, L31 and L33 were stronger at germinating stage, and that of L6, L26, L30, L31 were stronger at seedling stage. 55% of total resources were above middle drought resistance by subordinate function values analysis, which indicated that the drought resistance of Shanlan rice resources were strong. L6, L30 and L31 were suggested to popularize in arid areas. It provide reference for the utilization of drought resistant germplasm resources. |
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