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Position: Home > Articles > Effects of Climatic Factors on Output of Highland Barley and Its Yield Structure Journal of Triticeae Crops 2008,28 (3) 168-172+186

青稞产量形成的气象条件分析评价

作  者:
祁如英;汪青春;马占良
单  位:
青海省气候中心
关键词:
青稞;气象条件;产量结构
摘  要:
为给青稞种植的合理布局提供科学依据,利用青海省门源县气象站15年(1980、1982~1993、2001~2002年)青稞生育状况和气象资料,通过统计分析的方法研究了青稞产量形成的气象条件。结果表明,温度、降水、日照是影响门源地区青稞穗粒数、千粒重、平均产量的主要环境因子。其中,温度、日照是气象条件中的限制因子。通过建立的平均产量、穗粒数、千粒重动态预测函数,得出播种~出苗期、拔节~抽穗期、乳熟~成熟期是气温、日照、降水影响青稞生育的关键时期。在1980~2005年,门源地区的气温升高最为显著,这有利于青稞的穗粒数、千粒重、平均产量的形成;降水和日照的变化及其对青稞的穗粒数、千粒重、平均产量影响均不明显。
译  名:
Effects of Climatic Factors on Output of Highland Barley and Its Yield Structure
作  者:
QI Ru-ying,WANG Qing-chun,MA Zhan-liang(Climate Center of Qinghai Province,Xining,Qinghai 810001,China)
关键词:
Highland barley;Climatic factors;Yield structure
摘  要:
Using 15 years meteorological data from 1980 to 2002 in Menyuan region,the meteorological characteristics of yield structure of highland barley were analyzed.The results showed that temperature,precipitation and sunshine were the main factors for number of main spike,weight of a thousand seeds and output of highland barley,especially temperature and sunshine mere the limited factors for highland barley production.Through constructing dynamic functions of output,number of main spike and weight of a thousand seeds,It was indicated that temperature,precipitation and sunshine were the key factors for growing stages of planting to germination,jointing to booting and milk to ripeness.The temperature showed a remarkable increase in Menyuan region from 1980 to 2005,which benefits for output,number of main spike and the weight of a thousand seeds.But the variation of precipitation and sunshine showed an unobvious effect on output,number of main spike and the weight of a thousand seeds.

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