农学学报2026，Vol.16Issue(5)：8-17,10.
山东省夏大豆产量等农艺性状演变趋势分析
Analysis of Evolution Trend of Agronomic Traits such as Summer Soybean Yield in Shandong Province
摘要
Abstract
To accelerate the improvement and renewal of soybean varieties in Shandong Province,increase soybean yield,enhance stress resistance,and promote the sustainable development of the soybean industry,this study used 73 summer soybean varieties developed in Shandong Province from 2019 to 2024 as materials to systematically analyze the evolution trends in major agronomic traits and quality indicators.The results showed that the yields of regional and multi-location trials of recently approved soybean varieties in Shandong Province exhibited extremely significant increasing trends(P=1.1e-6**,P<2.2e-16**);100-grain weight and growth period also showed extremely significant upward trend(P=2.6e-4**,P=2.4e-4**).Among them,regional trial yield was significantly positively correlated with effective branching(r=0.24,P=0.04),and multi-location trial yield was extremely significantly positively correlated with 100-grain weight and growth period(r=0.46,P<1e-4;r=0.52,P<1e-4).However,overall,the yield potential in regional and multi-location trials showed a declining trend.To reduce the risk of lodging,the plant height and number of main stem nodes of soybean varieties developed in Shandong Province in recent years have been decreased;from a yield-increase perspective,the internode length should be appropriately shortened while reducing plant height to maintain a stable number of main stem nodes.Correlation analysis showed that the number of grains per plant was significantly negatively correlated with protein content(r=-0.24,P=0.046),100-grain weight was significantly positively correlated with protein content(r=0.27,P=0.02),and the number of effective branches was significantly negatively correlated with fat content(r=-0.24,P=0.046).In summary,increasing the number of effective branches,improving 100-grain weight,and appropriately delaying maturity are key approaches to enhance soybean yield potential in Shandong Province in recent years.In addition,coordinating the relationship between yield and quality is also an important direction in soybean genetic improvement.关键词
山东省/夏大豆/审定品种/育种情况/产量/农艺性状/演变趋势Key words
Shandong Province/summer soybean/approved varieties/breeding status/yield/agronomic traits/evolution trends分类
农业科技引用本文复制引用
何小春,李敏敏,张继雨,朱治佳,邱牧,赵杨,张正睿,张兰迎..山东省夏大豆产量等农艺性状演变趋势分析[J].农学学报,2026,16(5):8-17,10.基金项目
聊城市重点研发计划政策引导类项目"大豆优异种质资源挖掘、创新与利用"(2024YD91). （2024YD91）
