作物学报2026，Vol.52Issue(1)：295-315,21.DOI:10.3724/SP.J.1006.2026.52021
水分管理和品种类型对再生稻产量和稻米品质的影响
Effects of water management and variety type on grain yield and quality in ratoon rice
摘要
Abstract
To evaluate the effects of water-saving irrigation and variety type on grain yield and quality in ratoon rice,field ex-periments were conducted in Qichun and Xishui,Hubei province,in 2023.Three water-saving and drought-resistant rice(WDR)varieties(Hanyou 8200,Hanyou 116,and Hanyou 73)and three superior-quality rice(SQR)varieties(Zhenliangyouyingxiang-simiao,Quanyouyuenongsimiao,and Quanyou 607)were tested,with Liangyou 6326—commonly grown in large-scale ratoon rice production in Hubei—serving as the check variety for ordinary paddy rice(OPR).Two irrigation regimes,continuous flood-ing and water-saving,were compared to assess varietal responses in yield and grain quality within the ratoon rice system.Results showed that,compared to continuous flooding,water-saving irrigation reduced water input by an average of 76%in the main crop and 85%in the ratoon crop,without significant differences in grain yield or in milling,appearance,and cooking/eating quality traits.These results were consistent across both experimental sites.WDR varieties maintained stable yield and grain quality under water-saving conditions.In SQR varieties,yields averaged 8.54 t hm-2 in the main crop and 5.88 t hm-2 in the ratoon crop,com-parable to OPR.However,head rice rate significantly increased by 13.5 and 20.6 percentage points,while chalky grain rate and chalkiness degree decreased significantly by 22.6 and 6.4,and 10.8 and 1.8 percentage points,respectively,in the main and ratoon crops.For WDR varieties,yield and grain quality in the main crop were similar to OPR,but ratoon crop yield decreased signifi-cantly by 17%;nonetheless,head rice rate increased by 17.0 percentage points,and chalky grain rate and chalkiness degree de-creased by 5.5 and 1.0 percentage points,respectively.Significant varietal differences were observed within each variety type for both yield and grain quality.Correlation analysis revealed positive associations between grain quality traits in the main and ratoon crops.Overall,in regions with favorable rainfall,combining superior rice varieties with a water-saving irrigation strategy that emphasizes rainfed cultivation supplemented by timely irrigation at critical growth stages can effectively reduce water use,im-prove water use efficiency,and achieve the dual goals of high yield and premium grain quality in ratoon rice systems.关键词
稻米品质/节水灌溉/节水抗旱稻/优质稻/再生稻Key words
rice quality/water-saving irrigation/water-saving and drought-resistance rice/superior-quality rice/ratoon rice引用本文复制引用
朱金娟,崔克辉,黄见良,彭少兵,袁珅,王慧萍,杨国栋,王宇诚,杨晨,王斌,Agustiani Nurwulan,涂军明,毕俊国..水分管理和品种类型对再生稻产量和稻米品质的影响[J].作物学报,2026,52(1):295-315,21.基金项目
本研究由国家重点研发计划项目(2022YFD2301003),湖北省科技厅国际科技合作项目(2024EHA059),中国科协青年人才托举工程项目(2022QNRC001)和财政部和农业农村部国家现代农业产业技术体系建设专项(CARS-01)资助. This study was supported by the National Key Research and Development Program of China(2022YFD2301003),the Hubei International Science and Technology Cooperation Project(2024EHA059),the Young Elite Scientists Sponsorship Program by CAST(2022QNRC001),and the China Agriculture Research System of MOF and MARA(CARS-01). （2022YFD2301003）
