期刊
HORTSCIENCE
卷 46, 期 9, 页码 1245-1248出版社
AMER SOC HORTICULTURAL SCIENCE
DOI: 10.21273/HORTSCI.46.9.1245
关键词
Citrullus lanatus; breeding; plant introduction
类别
资金
- Beijing Municipal Science & Technology Commission, China [Z09090501040902, D08070500690803, 5100001]
- Ministry of Science and Technology of the People's Republic of China [2009BADB8B02, 2010DFA54310, 30972015, 2010AA10A107]
- Ministry of Agriculture of the People's Republic of China [CARS-26, 2007-Z9]
Because of the growing threat of global warming, drought stress could severely affect the normal growth and development of crop plants. To alleviate such an adverse effect, there is a need to screen watermelon germplasm collections to identify genetic sources for potential drought tolerance. In the present study, 820 accessions of USDA's Citrullus PIs and 246 watermelon breeding lines were evaluated for their drought tolerance at the seedling stage under extreme water stress conditions in a greenhouse. Significant variations in drought tolerance were observed in the Citrullus germplasm collections. Using fast clustering analysis, the tested watermelon materials could be assigned into four groups, including tolerant, intermediate tolerant, moderately sensitive, and sensitive, respectively. The most drought-tolerant Citrullus germplasm, including 13 Citrullus lanatus var. lanatus and 12 C. lanatus var. citroides accessions, were originated from Africa. These genetic materials could be used for rootstock breeding or for developing drought-tolerant watermelon cultivars.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据