安徽农学通报2026，Vol.32Issue(5)：1-4,4.DOI:10.16377/j.cnki.issn1007-7731.2026.05.001
高产优质两系杂交稻瑞两优56占的选育、栽培及制种技术
Breeding,cultivation and seed production techniques of two-line hybrid rice variety Ruiliangyou 56 Zhan with high yield and high quality
摘要
Abstract
The breeding process,characteristics,cultivation techniques,and seed production technology of Ruiliangyou 56 Zhan were summarized.This variety is a high yield,high quality two-line hybrid indica rice developed by crossing the high-quality indica photoperiod-thermo-sensitive genic male sterile line Rui 18S with the indica restorer line 56 Zhan.It was approved by the Anhui Provincial Crop Variety Approval Committee in 2023(Wanshendao 2023L021).In terms of characteristics,this variety has a total growth period of approximately 133.7 days,strong tillering ability,moderate plant height,and lodging resistance.It demonstrates good yield performance,with an average yield of 647.78 kg/667 m² in regional trials conducted from 2020 to 2021.The rice has excellent quality and is moderately to moderately susceptible to diseases such as rice blast and rice blast.Key cultivation techniques include sowing at the appropriate time(early to mid-May),seed treatment with prochloraz for soaking and germination promotion,and transplanting 25–28 days after sowing.Sufficient base fertilizer should be applied,and water management should follow the principles of"shallow water for transplanting,alternating wet and dry conditions,timely field drying,deep water for temperature regulation,and drainage at yellow maturity".Disease and pest control should prioritize prevention,focusing on pest control during the seedling stage and integrated management of diseases such as sheath blight,rice blast,and false smut,as well as pests such as planthoppers and leaf rollers during the mid-to-late stages.Seed production techniques involve precise coordination of the flowering periods of the parental lines,standardized field layout,and strict removal of off-types.Specifically,the female parent is sown in mid-May,while the male parent is sown in two batches.When planting,the ratio of parents to their own line is 2∶11.When 5%-10%of the female panicles have headed,gibberellin("920")is sprayed to regulate the plant height of the parental lines.Artificial or drone-assisted pollination is conducted during the peak flowering period of the male parent.Strictly remove impurities during the seed production process.When seed maturity reaches 80%-90%,the seeds are harvested and dried separately on sunny days.After pollination,the male parent rows are promptly cut,and biological and mechanical mixing must be strictly prevented throughout the process.This paper provides a reference for the promotion and cultivation of this variety.关键词
杂交稻/瑞两优56占/品种选育/栽培技术Key words
hybrid rice/Ruiliangyou 56 Zhan/breeding of varieties/cultivation techniques分类
农业科技引用本文复制引用
张彩娟,周坤能,云鹏,郝栖贤,夏加发,李泽福..高产优质两系杂交稻瑞两优56占的选育、栽培及制种技术[J].安徽农学通报,2026,32(5):1-4,4.基金项目
安徽省农作物良种联合攻关(水稻) （水稻）
安徽省科技重大专项(2021d06050002,202103a06020008) （2021d06050002,202103a06020008）
国家重点研发计划(2021YFD1200500) （2021YFD1200500）
国家水稻产业技术体系(CARS-01-94) （CARS-01-94）
两系杂交水稻种质创新与分子育种安徽省联合共建学科重点实验室开放课题项目(HAXM-2024-01). （HAXM-2024-01）
