植物保护2026，Vol.52Issue(3)：224-231,8.DOI:10.16688/j.zwbh.2025244
大豆田刺黄花棯种子的休眠解除及萌发特性研究
Study on dormancy release and germination characteristics of Sida spinosa seeds in soybean fields
摘要
Abstract
Previous investigation have shown that the invasive alien weed Sida spinosa L.has invaded soybean fields in parts of Jiangsu and shows a potential expansion trend.To explore the biological characteristics of S.spinosa seeds,Petri dish and pot experiments were conducted to evaluate the effects of different environmental factors(temperature,photoperiod,pH,water potential,salinity,and depth of seeding)on seed germination and seedling emergence.The results showed that S.spinosa seeds exhibit dormancy,which can be effectively broken by soaking in concentrated sulfuric acid after dry storage at room temperature for 60 d.Seeds could germinate at temperatures ranging from 20 to 40℃,with optimal germination at 25-30 ℃.Different photoperiods and pH values had no significant effects on seed germination.The seeds also showed a certain tolerance to drought and salt stress,with optimal germination ranges of-0.3 to 0 MPa(water potential)and 0 to 80 mmol/L(salinity),respectively.Seed germination was severely inhibited at-0.6 MPa and 160 mmol/L.The highest seedling emergence rate was observed at the soil surface,and normal emergence was observed at soil depths of 0-1 cm,whereas emergence was difficult when burial depth exceeded 2 cm.These results indicate that S.spinosa seeds have strong adaptability to environmental conditions and possess the potential to invade soybean fields.关键词
大豆田/刺黄花捻/种子休眠解除/种子萌发特性/环境因子Key words
soybean fields/Sida spinosa/seed dormancy release/seed germination characteristics/environmental factors分类
农业科技引用本文复制引用
潘岩,王猛,王伸宝,李俊..大豆田刺黄花棯种子的休眠解除及萌发特性研究[J].植物保护,2026,52(3):224-231,8.基金项目
国家重点研发计划(2023YFD1401000) （2023YFD1401000）
南京农业大学SRT国家级试验中心专项(202412ZX003) （202412ZX003）
