文献类型： 外文期刊

作者： Wu, HX ¹ ; Sun, M ² ; Yue, SX ² ; Sun, HL ² ; Cai, Y ² ; Huang, RH ² ; Brenner, D ² ; Corke, H ² ;

作者机构： 1.Univ Hong Kong, Dept Bot, Hong Kong, Hong Kong, Peoples R China

2.Univ Hong Kong, Dept Bot, Hong Kong, Hong Kong, Peoples R China; Univ Hong Kong, Dept Zool, Hong Kong, Hong Kong, Peoples R China; Chinese Acad Agr Sci, Inst Crop Breeding & Cultivat, Beijing 100081, Peoples R China; Hubei Acad Agr Sci, Inst Agr Modernizat, Wuhan 430064, Peoples R China; Iowa State Univ, Dept Agron, Ames, IA 50011 USA

关键词： adaptability;agronomic traits;Amaranthus;evaluation;plant genetic resources

期刊名称：GENETIC RESOURCES AND CROP EVOLUTION （ 影响因子：1.524； 五年影响因子：1.713 ）

ISSN： 0925-9864

年卷期： 2000 年 47 卷 1 期

页码：

收录情况： SCI

摘要： A total of 229 genotypes of 20 Amaranthus species from the United States Department of Agriculture - Agricultural Research Service (USDA - ARS) National Plant Germplasm Amaranth Collection was evaluated in field experiments in Beijing and Wuhan, China, in 1994. Agronomic traits, including plant height, maturity, leaf number and color, stem color, seed color, branch number, 1000-grain-weight, yield per plant, and resistance to stresses (including diseases) were measured. The results indicated: 1. Many of the species were sensitive to daylength; 2. Cultivated genotypes generally had higher grain yield but were more seriously affected by diseases than non-cultivated species; 3. There was wide diversity in agronomic traits among Amaranthus species and among genotypes within the same species, and several genotypes were identified that appeared to carry favorable agronomic traits of immediate use in cultivar improvement; 4. For introduction of genotypes for use in plant breeding in China, selection should be partially based on matching the climates of the location of origin and the target area for production.