中国稻米Issue(6)：13-18,6.DOI:10.3969/j.issn.1006-8082.2015.06.003
北方不同气候条件对稻米品质性状的影响
The Influence of Different Climatic Ecological Conditions on Rice Quality Traits in Northern China
摘要
Abstract
Taking the rice varieties in northern rice regional test as experimental materials, seven quality traits of medium and early maturity rice variety groups in Yongning site (Ningxia) and Kaiyuan site (Liaoning) from 2001 to 2013 were analyzed. The results showed that the head rice rate and gel consistency in Kaiyuan site are significantly higher than Yongning site, the chalky rice rate and chalkiness degree in Yongning site are significantly lower than Kaiyuan site. There are no significant difference between two sites re-garding brown rice rate, milled rice rate and amylose content. Within seven quality traits, the coefficient of variation for the chalky rice rate and chalkiness degree are relatively larger, the coefficient of variation for the head rice rate, amylose content and gel consis-tency are the medium, the coefficient of variation for the brown rice rate and milled rice rate are relatively smaller. Comparison of the meteorological factor between Yongning site and Kaiyuan site during the heading and filling stage from August to September were conducted, which shows that the mean temperature, max temperature, min temperature and hours of sunshine are similar in two sites. The dekad precipitation and relative humidity in Yongning site are significantly lower than Kaiyuan site. The results of the correlation analysis for rice quality traits and meteorological factors shows that the rice quality traits is more closely related to the meteorological factor in September than in August. The results of the correlation between brown rice rate and relative humidity, head rice rate and relative humidity, head rice rate and the maximum temperature, brown rice rate and precipitation are opposite in Yongning site and Kaiyuan site, which may be caused by the different relative humidity and precipitation in two sites. Therefore, the complexity of the rice quality is the results of coupling effects under different climate ecological background.关键词
水稻/稻米品质/气候因子/相关分析Key words
rice/quality traits/meteorological factor/correlation analysis分类
农业科技引用本文复制引用
王娇,王洁,强爱玲,官景得,孙国才,孙建昌,齐国锋,王兴盛,韩龙植..北方不同气候条件对稻米品质性状的影响[J].中国稻米,2015,(6):13-18,6.基金项目
国家科技支撑项目（2013BAD01B0101-02，2013BAD01B02-2）；作物种质资源保护项目[NB2013-2130135-25-01]；国家农作物种质资源平台（2012-001）；中国农业科学院科技创新工程项目；宁夏自然科学基金项目（NZ14183）；宁夏育种专项水稻新品种选育-分子育种技术的应用研究 （）
