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西瓜种质资源抗旱性苗期筛选与评价
张海英, 宫国义, 郭绍贵, 任 毅, 许 勇
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(北京市农林科学院蔬菜研究中心)
摘要:
关键词:  西瓜  种质资源  抗旱  快速聚类
DOI:
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);
Evaluation of drought Resistance for Watermelon Germplasm Collections at Seedling Stage
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, susceptible, middle resistant 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 wild germplasm which from Africa, they were suitable for watermelon rootstock breeding. Those middle resistant germplasms were cultivar accessions, which have good agriculture traits and disease resistance, they could be used as watermelon drought resistance breeding.
Key words:  watermelon  germplasm resources  Drought Resistance