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西北干旱区不同海拔高度地区气温变化对春小麦生长的影响

赵鸿1,2;李凤民2;熊友才2;张强1;王润元1;杨启国1   

  1. 1中国气象局兰州干旱气象研究所/甘肃省干旱气候变化与减灾重点实验室/中国气象局干旱气候变化与减灾重点开放实验室,兰州 730020; 2兰州大学干旱与草地生态教育部重点实验室,兰州 730000
  • 收稿日期:2008-09-18 修回日期:1900-01-01 出版日期:2009-04-20 发布日期:2009-04-20

Effects of air temperature change on spring wheat growth at different altitudes in northwest arid area.

ZHAO Hong1,2;LI Feng-min2;XIONG You-cai2;ZHANG Qiang1;WANG Run-yuan1;YANG Qi-guo1   

  1. 1Gansu Provincial Key Laboratory of Arid Climatic Change and Reducing Disaster, China Meteorological Administration Key Open Laboratory of Arid Change and Disaster Reduction, Institute of Arid Meteorology, Lanzhou 730020, China;2Ministry of Education Key Laboratory of Arid and Grassland Ecology, Lanzhou University, Lanzhou 730000, China
  • Received:2008-09-18 Revised:1900-01-01 Online:2009-04-20 Published:2009-04-20

摘要: 基于1981—2006年西北干旱区高海拔地(民乐站)和低海拔地(张掖站)农业气象观测站的观测资料,对民乐站和张掖站的气温变化及其对春小麦生长发育和产量的影响进行了研究.结果表明:研究期间,民乐站、张掖站的气温均呈增加趋势,且高海拔地区的增温幅度大于低海拔地区;民乐站春小麦对气温变暖的响〖JP2〗应表现为生育期缩短、产量增加,张掖站春小麦对气温变暖的响应表现为生育期缩短、产量下降;春小麦生育期内日均气温每升高1 ℃,民乐站和张掖站春小麦生育期分别缩短8.3 d和3.8 d.民乐站春小麦生育期内最高气温低于30.4 ℃时,春小麦生育期和产量均小幅增加,当超过30.4 ℃时,春小麦生育期缩短、产量下降.

关键词: 东海原甲藻, 定量PCR, 细胞色素b基因, 内参基因

Abstract: Based on the 1981〖KG-*2〗-〖KG-*7〗2006 observation data from agricultural meteorological stations at Minle (high altitude) and Zhangye (low altitude) in northwest arid area, the effects of air temperature change at the two altitudes on the growth and yield of spring wheat were studied. It was shown that during study period, the air temperature at the two altitudes had an increasing trend, and the increment was greater at high altitude than at low altitude. At high altitude, the growth duration of spring wheat shortened but the grain yield increased; while at low altitude, the growth duration shortened and the yield decreased. When the mean daily air temperature during spring wheat growth period increased by 1 ℃, the growth duration shortened by 83 days at high altitude and by 38 days at low altitude. The growth duration and grain yield of spring wheat at high altitude had a slight increase when the maximum air temperature during growth period was below 304 ℃, but decreased when the maximum air temperature was above 304 ℃.

Key words: Prorocentrum donghaiense Lu, real-ime fluorescent quantitative PCR (RFQ-PCR);, cytochrome b, reference gene.