| 太湖流域水稻种子活力和耐缺氧能力遗传变异研究 |
| |
| 引用本文： | 王洋,王盈盈,洪德林. 太湖流域水稻种子活力和耐缺氧能力遗传变异研究[J]. 南京农业大学学报, 2009, 32(3) |
| |
| 作者姓名： | 王洋 王盈盈 洪德林 |
| |
| 作者单位： | 1. 南京农业大学作物遗传与种质创新国家重点实验室,江苏,南京,210095;黑龙江大学农业资源与环境学院,黑龙江,哈尔滨,150008
2. 南京农业大学作物遗传与种质创新国家重点实验室,江苏,南京,210095 |
| |
| 基金项目： | 高等学校学科创新引智计划资助项目 |
| |
| 摘 要： | 测定了太湖流域5个生态类型297个粳稻地方品种和2个对照育成品种的种子活力指数和5 cm水深条件下生长7 d的芽鞘长度,研究了这两个性状的遗传变异及它们与水直播14 d的幼苗高、成苗指数的相关性.结果表明:地方品种的种子活力和幼苗耐缺氧能力的遗传变异系数分别为19.5%和15.2%,这两个性状的遗传变异主要存在于早熟晚粳生态型中.种子活力指数、缺氧条件下芽鞘长度均与水直播14 d的幼苗高及成苗指数呈极显著正相关.从早熟晚粳中筛选到薄稻3、硬头茎、三百粒头、大稻头、乌金香糯、荒三石4、晚八哥头7个高活力和耐缺氧能力的品种资源,可供适于直播的水稻新品种选育利用.
|
| 关 键 词： | 水稻 太湖流域生态型 种子活力 耐缺氧能力 遗传变异 |
Genetic variation of seed vigor and tolerance to anoxia among rice(Oryza sativa L.)varieties in Taihu Lake region |
| |
| WANG Yang,WANG Ying-ying,HONG De-lin. Genetic variation of seed vigor and tolerance to anoxia among rice(Oryza sativa L.)varieties in Taihu Lake region[J]. Journal of Nanjing Agricultural University, 2009, 32(3) |
| |
| Authors: | WANG Yang WANG Ying-ying HONG De-lin |
| |
| Affiliation: | 1.State Key Laboratory of Crop Genetics and Germplasm Enhancement;Nanjing Agricultural University;Nanjing 210095;China;2.College of Agricultural Resource and Environment;Heilongjiang University;Harbin 150008;China |
| |
| Abstract: | Seed vigor index and coleoptile length of seedling germinated 7 days under 5 cm deep water were investigated using 297 varieties(belong to five ecotypes)and 2 cultivars in rice(Oryza sativa L.)in Taihu Lake region.Genetic variations of the two traits and correlations between the two traits respectively with 14-day-seedling height and seedling establishment index were analyzed.Results showed that genetic coefficient of variation(GCV)was 19.5% for seed vigor and 15.2% for tolerance to anoxia among the 297 var... |
| |
| Keywords: | |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
