节水灌溉Issue(9)：72-78,7.DOI:10.12396/jsgg.2026030
淹水胁迫对不同中稻品种的生理及产量的影响研究
Effects of Flooding Stress on Physiology and Yield of Different Mid-season Rice Varieties
摘要
Abstract
In order to study the response of different mid-season rice varieties to flooding stress,Huanghuazhan,Tianyouhuazhan,and Longliangyouhuazhan-major mid-season rice varieties in the middle and lower Yangtze River-were selected as research subjects.Through pot experiments,three flooding depths of 1/2(H1),2/3(H2)and full flooding(H3)and three flooding durations of 3 d(T1),6 d(T2)and 9 d(T3)were set up.The effects of flooding stress on plant height,tillering,relative chlorophyll content and yield of mid-season rice were systematically analyzed.Based on the correlation between relative yield and flooding factors,a drainage model was constructed to analyze the allowable time of drainage under different flooding depths,which provided a theoretical basis for the formulation of drainage indicators in irrigation areas.The results showed that flooding stress promoted plant height elongation,inhibited tillering and relative chlorophyll content,plant height elongation was significantly negatively correlated with tillering inhibition,and the stress response of each physiological index had significant variety specificity.The yield decreased significantly with the increase of flooding depth and duration,and the flooding tolerance thresholds varied considerably among varieties.Path analysis showed that seed setting rate was the core driving factor of yield loss.Based on data from rice flooding tolerance tests,the relationship equation between relative rice yield and cumulative flooding depth during the flooding period can serve as a drainage model for rice.Taking 10%~30%reduction of rice yield as the drainage standard,the drainage time under different flooding depths can be determined based on the regression equation.关键词
中稻/淹水深度/淹水历时/排涝模型/产量Key words
middle rice/flooding depth/flooding duration/drainage model/yield分类
农业科技引用本文复制引用
彭晓,赵新宇,桑红辉,淦晓林,汪西圣..淹水胁迫对不同中稻品种的生理及产量的影响研究[J].节水灌溉,2026,(9):72-78,7.基金项目
国家自然科学基金项目(32460298) （32460298）
河南省水利科技攻关项目(CSDGQ/JS/KY-2025001) （CSDGQ/JS/KY-2025001）
江西省水利厅科技项目(202527ZDKT09,202526YBKT23,202526TGKT07). （202527ZDKT09,202526YBKT23,202526TGKT07）
