| 水分胁迫对华北平原冬小麦地上部分及产量的影响 |
| |
| 引用本文： | 乐章燕,廖荣伟,刘晶淼,卢建立,白月明,梁宏,安顺清,黄鹤.水分胁迫对华北平原冬小麦地上部分及产量的影响[J].气象与环境学报,2014,30(6):120-124. |
| |
| 作者姓名： | 乐章燕 廖荣伟 刘晶淼 卢建立 白月明 梁宏 安顺清 黄鹤 |
| |
| 作者单位： | 1. 廊坊市气象局，河北 廊坊065000；2. 国家气象信息中心，北京 100081；3.中国气象局沈阳大气环境研究所，辽宁 沈阳 110166；4. 河北省气象局，河北 石家庄050021；5. 中国气象科学研究院，北京100081；6. 中国气象局气象探测中心，北京 100081；7. 保定市气象局，河北 保定 071000 |
| |
| 基金项目： | 国家自然科学基金“不同土壤水分条件下冬小麦根系生长及其产量关系的试验研究”(31071322);公益性行业(气象)科研专项(GYHY201106026)共同资助 |
| |
| 摘 要： | 以“济麦-22”为供试品种，利用中国气象局固城生态环境与农业气象试验站大型根系观测系统，研究冬小麦在重度干旱胁迫（≤40.0%）、轻中度干旱胁迫（40.1%-55.0%）和适宜（55.1%-80.0%）3种水分胁迫条件下地上部分对水分胁迫的响应，以探索水分胁迫对华北平原冬小麦产量的影响，分析不同水分胁迫对冬小麦产量的影响程度。结果表明：华北平原冬小麦在轻中度干旱胁迫和重度干旱胁迫下，小麦全生育期的天数缩短，株高、叶面积及灌浆速率均呈不同程度的减少。3种水分胁迫的株高增长量为适宜>轻中度胁迫>重度胁迫，灌浆速率为适宜>轻中度胁迫>重度胁迫。土壤水分胁迫引起冬小麦物质分配更多地向支持生长的茎秆转移，在生长发育过程中受到水分胁迫，小麦产量将降低，重度胁迫条件下小麦产量为适宜水分条件的69%。
|
| 关 键 词： | 冬小麦 水分胁迫 生育期 产量 |
Effects of water stress on stem,plant and yield of winter wheat over North China plain |
| |
| LE Zhang-yan,LIAO Rong-wei,LIU Jing-miao,LU Jian-li,BAI Yue-ming,LIANG Hong,AN Shun-qing,HUANG He.Effects of water stress on stem,plant and yield of winter wheat over North China plain[J].Journal of Meteorology and Environment,2014,30(6):120-124. |
| |
| Authors: | LE Zhang-yan LIAO Rong-wei LIU Jing-miao LU Jian-li BAI Yue-ming LIANG Hong AN Shun-qing HUANG He |
| |
| Abstract: | In order to study effects of water stress on winter wheat yield on the North China plain, field experiments under three levels of soil moisture, namely, severe water stress (≤40.0%), moderate drought (40.1%-55.0%) and suitable water (55.1%-80.0 %) were carried out at Gucheng ecological-meteorological experimental station of Chinese Academy of Meteorological Sciences. The test cultivar was winter wheat (NO.22 Jimai). The results show that a growth period of winter wheat is shortened, and its plant height, leaf area and filling rate decrease under two treatments of severe water stress and moderate water stress. The order of growth rate of plant height under different water treatments is suitable water> moderate drought> severe water stress, so is that of filling rate. More dry-matter is transferred into stem due to soil water stress. Wheat yield will be reduced if wheat is influenced by water stress during growth and development. Compared with yield under suitable water, yield under severe water stress could reach only 69%. |
| |
| Keywords: | Winter wheat Water stress Developmental period Yield |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《气象与环境学报》浏览原始摘要信息 |
| 点击此处可从《气象与环境学报》下载免费的PDF全文 |
|
