主办单位：中国气象局沈阳大气环境研究所
国际刊号：ISSN 1673-503X
国内刊号：CN 21-1531/P
气象与环境学报

气象与环境学报 ›› 2014, Vol. 30 ›› Issue (6): 120-124.doi:

• 论文 • 上一篇    下一篇

水分胁迫对华北平原冬小麦地上部分及产量的影响

乐章燕1 廖荣伟2 刘晶淼3 卢建立4 白月明5 梁宏6 安顺清5 黄鹤7   

  1. 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
  • 出版日期:2014-12-30 发布日期:2014-12-30

Effects of water stress on stem, plant and yield of winter wheat over North China plain

LE Zhang-yan1 LIAO Rong-wei 2 LIU Jing-miao3 LU Jian-li4 BAI Yue-ming5 LIANG Hong6 AN Shun-qing5 HUANG He7   

  1. 1. Langfang Meteorological Service, Langfang 065000, China; 2. National Meteorological Information Center, Beijing 100081, China; 3. Institute of Atmospheric Environment, China Meteorological Administration, Shenyang 110016, China; 4. Hebei Provincial Meteorological Service, Shijiazhuang 050021, China; 5. Chinese Academy of Meteorological Sciences, Beijing 100081,China; 6. Meteorological Observation Centre, China Meteorological Administration, Beijing 100081, China; 7. Baoding Meteorological Service, Baoding 071000, China
  • Online:2014-12-30 Published:2014-12-30

PDF (PC)

320

被引次数

12

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

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%.

Key words: Winter wheat, Water stress, Developmental period, Yield