上海农业学报2025，Vol.41Issue(6)：21-31,11.DOI:10.15955/j.issn1000-3924.2025.06.04
2004-2023年上海市奉贤区气象因子与水稻产量及产量构成因素的关系
Relationship between meteorological factors and rice yield and yield components in Fengxian District,Shanghai,2004-2023
摘要
Abstract
To investigate the relationship between japonica rice yield and meteorological factors in Fengxian District,Shanghai,data on rice yield,yield components,and meteorological factors from 2004 to 2023 were collected.Principal component analysis and Spearman correlation analysis methods were used to explore the relationship between yield and yield components and meteorological factors.The results showed that rice yield reached its highest level in the period of 2009-2013.Compared with the period of 2009-2013,there was no significant difference in yield in the period of 2014-2018,but there was a significant decrease of 2.7％and 4.3％in the periods of 2004-2008 and 2019-2023,respectively.The analysis of yield components showed that the reason for the highest yield from 2009 to 2013 was the high effective panicle number and 1 000-grain weight.Over the past 20 years,the daily mean temperature,daily maximum temperature,and daily minimum temperature during the growth period of rice were 24.8℃,28.6℃,and 21.7℃,respectively;the relative humidity,precipitation,and sunshine duration throughout the whole growth period were 80.3％,801.9 mm,and 969.1 h,respectively.Principal component analysis and correlation analysis showed that yield and 1 000-grain weight were significantly negatively correlated with daily mean temperature,daily maximum temperature,and daily minimum temperature.The seed setting rate was significantly positively correlated with the daily maximum temperature throughout the whole growth period and the highest daily temperature after heading.The effective panicle number was negatively correlated with relative humidity and precipitation,but positively correlated with sunshine duration;the spikelets per panicle showed the opposite trend.This study could provide theoretical guidance for high yield and cultivation management of rice in Fengxian District,which was of great significance for improving rice yield in Fengxian District.关键词
水稻/产量/产量构成因素/气象因子Key words
Rice/Yield/Yield components/Meteorological factors分类
农业科技引用本文复制引用
王华,金雯伊,陈俞,张静文,冯斌,陈柯豪,陈虹..2004-2023年上海市奉贤区气象因子与水稻产量及产量构成因素的关系[J].上海农业学报,2025,41(6):21-31,11.基金项目
上海市水稻产业技术体系建设项目[沪农科产字(2024)第3号] （2024）
