| 西瓜种质资源抗旱性苗期筛选与评价 |
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| 引用本文： | 张海英,宫国义,郭绍贵,任 毅,许 勇.西瓜种质资源抗旱性苗期筛选与评价[J].植物遗传资源学报,2011,12(2):223-226. |
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| 作者姓名： | 张海英 宫国义 郭绍贵 任 毅 许 勇 |
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| 作者单位： | 北京市农林科学院蔬菜研究中心,北京,100097 |
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| 基金项目： | 国家“863”计划(2010AA10A107); 国家现代西瓜甜瓜产业技术体系(nycytx-36-01-01-01); 国家科技支撑项目(2006BAD01A7-6-02); 北京市科委项目(Z09090501040902、D08070500690803); |
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| 摘 要： | 采用苗期持续干旱法,对1066份西瓜种质资源开展大规模抗旱性筛选评价。结果表明,不同基因型种质资源抗旱性差异明显。采用快速聚类方法将供试材料分为抗旱、耐旱、敏感和抗性分离等4种类型,共获得25份强抗旱性西瓜材料,多为来源于非洲的野生西瓜种质资源,适用于西瓜嫁接砧木的选育;获得30份中等抗旱性材料,多为栽培种西瓜种质资源,具有农艺性状优良、抗病性强等优点,可直接用于抗旱节水西瓜新品种选育。
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| 关 键 词： | 西瓜 种质资源 抗旱 快速聚类 |
Evaluation of drought Resistance for Watermelon Germplasm Collections at Seedling Stage |
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| ZHANG Hai-ying,GONG Guo-yi,GUO Shao-gui,REN Yi,XU Yong.Evaluation of drought Resistance for Watermelon Germplasm Collections at Seedling Stage[J].Journal of Plant Genetic Resources,2011,12(2):223-226. |
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| Authors: | ZHANG Hai-ying GONG Guo-yi GUO Shao-gui REN Yi XU Yong |
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| Institution: | ZHANG Hai-ying,GONG Guo-yi,GUO Shao-gui,REN Yi,XU Yong(National Engineering Research Center for Vegetables,Beijing Academy Agricultural and Forestry Science,Beijing 100097) |
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| Abstract: | 1066 watermelon accessions were screened for drought resistance under progressive drying condition at seedling stage.The result indicated that the suffered degree was significantly different among accessions.Using fast cluster analysis,1066 collections were devided into 4 classes,which were resistant,middle resistant,susceptible and resistance seperation,respectively.25 accessions were identified as high resistant to drought,while 30 collections were middle resistance.Most of high resistant accessions were ... |
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| Keywords: | Watermelon Germplasm resources Drought Resistance |
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