期刊
AGRICULTURAL WATER MANAGEMENT
卷 173, 期 -, 页码 84-90出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.agwat.2016.05.010
关键词
Climate change; Broad bean; Yield; Water use efficiency; Semiarid regions
资金
- National Special Fund for Public Welfare Industry (Meteorology) [GYHY201506001-8]
- National Special Science Research Program of China [2013CB430206]
- National Scientific Research Project [2013BAD11B03-7]
- National Natural Science Foundation of China [41165009]
Farm crop growing and high efficiency water resource utilizing are directly influenced by global warming, and a new challenge will be given to food and water resource security. A simulation experiment by farm warming with infrared ray radiator was carried out, and the result showed photosynthesis of broad bean was significantly faster than transpiration during the seedling stage, ramifying stage, budding stage, blooming stage and podding stage when the temperate was increased by 0.5-1.5 degrees C. But broad bean transpiration was faster than photosynthesis during the budding stage, blooming stage and podding stage when the temperature was increased by 1.5 degrees C above. The number of grain per hill and hundred grain weight were significantly increased when the temperature was increased by 0.5-1.0 degrees C. But they significantly dropped and finally the yield decreased when the temperature was increased by 1.0 degrees C above. The broad bean yield decreased by 39.2-88.4% when the temperature was increased by 1.5-2.0 degrees C. The broad bean water use efficiency increased and then decreased with temperature rising. The water use efficiency increased when the temperature was increased by 1.0 degrees C below, and it quickly decreased when the temperature was increased by 1.0 degrees C above. In all, global warming in the future will significantly influence the growth, yield and water use efficiency of bean cultures in China's semiarid regions. (C) 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license.
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