中国农业科学2026，Vol.59Issue(9)：1848-1868,21.DOI:10.3864/j.issn.0578-1752.2026.09.003
不同灌溉量对东北地区水稻抗倒伏特性及产量的影响
Effects of Different Irrigation Volumes on Lodging Resistance Characteristics and Yield of Rice in Northeast China
摘要
Abstract
[Objective]To study the effects of different irrigation volumes on the agronomic traits,lodging resistance and yield formation of rice,and to explore a more suitable water management plan for high-yield and stable-yield green cultivation of rice,and to provide a theoretical basis for sustainable rice production.[Method]Using WYD4 and JND667 as experimental materials,six different irrigation volume treatments were carried out:W1(12 000 m3·hm-2),W2(10 500 m3·hm-2),W3(9 000 m3·hm-2),W4(7 500 m3·hm-2),W5(6 000 m3·hm-2)and W6(natural rainfall).By studying the effects of different irrigation volumes on the plant architecture,resistance to lodging,photosynthetic characteristics,dry matter accumulation and yield of rice,the regulatory effects and mechanisms of different irrigation volumes on these aspects were clarified.[Result]Reducing irrigation properly increased the final tiller number,the percentage of productive tillers,leaf length of the top three leaves,and leaf area index of rice,while reducing the leaf width and leaf base angle of the top three leaves,as well as plant height.The W4 treatment can optimize the plant morphology of rice,promote plant growth,and form a good population structure.With the decrease in irrigation volume,the length of the second internode at the base of rice decreased,and the internode plumpness,breaking resistance,lodging index,and the contents of lignin and cellulose in the stem and sheath first increased and then decreased.Proper irrigation was beneficial for improving the lodging resistance of rice stems.Appropriate irrigation volume not only improves water use efficiency but also enhances the photosynthetic performance of the flag leaves of rice,the accumulation and transportation capacity of dry matter in the stem and sheath,which is beneficial to yield formation.Compared with the W1 treatment,the W4 treatment saved 37.50%of the irrigation water consumption,and the yield significantly increased by 9.07%-12.47%.[Conclusion]Under the W4(7 500 m3·hm-2)treatment,rice has better plant morphology,lodging resistance,photosynthetic performance,and dry matter accumulation compared with other treatments.Therefore,it has the highest yield while having a high water use efficiency and can be used as a more suitable irrigation volume in this region.关键词
水稻/灌溉量/株型/抗倒伏/产量Key words
rice/irrigation volume/plant morphology/lodging resistance/yield引用本文复制引用
白晶晶,邵玺文,吴莹,耿艳秋,郭丽颖,章宇辰,倪子捷,高佳勇,刘伟洋,盖东升,王雨行,何佳庆,张强..不同灌溉量对东北地区水稻抗倒伏特性及产量的影响[J].中国农业科学,2026,59(9):1848-1868,21.基金项目
国家重点研发计划(2024YFD2300101)、吉林省科技厅重点研发计划(20250202029NC) （2024YFD2300101）
