| 耐低钾水稻品种的筛选 |
| |
| 引用本文： | 项虹艳,丁洪,郑金贵,李卫华,林勇.耐低钾水稻品种的筛选[J].江西农业大学学报,2004,26(3):338-344. |
| |
| 作者姓名： | 项虹艳 丁洪 郑金贵 李卫华 林勇 |
| |
| 作者单位： | 1. 福建省农业科学院,土壤肥料研究所,福建,福州,350013
2. 福建农林大学,作物学院,福建,福州,350002 |
| |
| 摘 要： | 在盆栽缺钾和施钾条件下选用50个早稻品种和47个晚稻品种进行耐低钾筛选试验。结果表明,在缺钾条件下早稻和晚稻的相对经济产量分别在29．59％～87．53％和18．7％～144．9％之间,相对生物产量分别在41．38％～92．5％和29．3％～138．4％之间,不同水稻品种耐低钾能力差异很大。早稻品种桂朝13、农林35、清晚秋,晚稻品种桂朝13、IR8选、本地粳等6个品种钾素利用率高,具有低钾条件下产量性状较好,吸钾量、钾利用指数、钾经济效率比高等特点,属于较耐低钾品种．尤其是桂朝13表现更为突出。水稻品种生物量与吸钾量之间存在显著的正相关关系。
|
| 关 键 词： | 水稻 耐低钾品种筛选 吸钾量 钾利用指数 钾经济效率比 |
| 文章编号： | 1000-2286(2004)03-0338-07 |
| 修稿时间： | 2004年1月10日 |
Screening of Low K-Tolerant Rice Varieties |
| |
| XIANG Hong-yan,DING HongZHENG Jin-gui,LI Wei-hua,LIN Yong.Screening of Low K-Tolerant Rice Varieties[J].Acta Agriculturae Universitis Jiangxiensis,2004,26(3):338-344. |
| |
| Authors: | XIANG Hong-yan DING HongZHENG Jin-gui LI Wei-hua LIN Yong |
| |
| Institution: | XIANG Hong-yan1,DING Hong1*ZHENG Jin-gui2,LI Wei-hua1,LIN Yong1 |
| |
| Abstract: | Pot experiment was carried out to study the K efficiency among 50 early rice and 47 second rice varieties under lwo K levels. The results showed that there were great differences among rice varieties in the relative economical yield (REY), relative biomass yield (RBY) and responsiveness to K supply. "Guichao 13", "Nonglin 35", "Qingwanqiu", "IR8 xuan", "Bendigeng" possessed high K utilization efficiency, which had the characteristics of higher yield, stronger K absorption ability, higher K utilization index and higher economical K efficiency ratio in low K level. "Guichao 13" was more prominent. There was positive correlation between biomass yield and amount of K absorption. |
| |
| Keywords: | rice screening of low K-tolerant varieties amount ot K absorption K utilization index economical K efficiency ratio |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
