| 唐力琼,严小微,唐清杰,徐靖,朱红林,王效宁.山栏稻资源早期抗旱性评价及抗旱资源筛选[J].干旱地区农业研究,2018,36(2):170~175 |
| 山栏稻资源早期抗旱性评价及抗旱资源筛选 |
| 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 |
| 中文关键词: 山栏稻 芽期 苗期 抗旱性 评价 筛选 |
| 英文关键词:Shanlan upland rice germinating stage seedling stage drought resisitance evaluation screening |
| 基金项目:海南省自然科学基金(20163083)；海南省农业科学院农业科技创新专项项目(CXZX201507)；海南省应用技术研发与示范推广专项(ZDXM2015035，ZDXM2015037)；现代农业产业技术体系建设专项(CARS-01-89) |
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| 中文摘要: |
| 为明确山栏稻抗旱差异性，筛选抗旱性强的资源，采用PEG人工模拟干旱的方法，研究20个山栏稻资源的芽期、苗期抗旱性。结果表明，采用不同的评价指标，资源间的抗旱性排序有所不同；山栏稻资源的抗旱性具有显著差异；芽期、苗期抗性极显著正相关，芽期抗旱性较强的资源有L6、L30、L31、L33，苗期抗旱性较强的资源有L6、L26、L30、L31；采用隶属函数法进行抗旱性综合分级，结果显示山栏稻资源总体抗旱性较强，中抗以上的资源占55%，其中L6、L30、L31几个资源具有强抗旱性，建议在季节性干旱地区推广，同时为抗旱种质创新利用提供参考。 |
| 英文摘要: |
| 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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