杂交水稻2026，Vol.41Issue(4)：61-69,9.DOI:10.16267/j.cnki.1005-3956.20241210.279
秧龄和播种方式对杂交稻秧苗素质、机插质量及产量的影响
Effects of Seedling Age and Sowing Method on Seedling Quality,Mechanical Transplanting Quality,and Yield of Hybrid Rice
摘要
Abstract
To explore the effects of the seedling age and sowing method on the seedling quality,mechanical transplanting quality,and yield of hybrid rice in southern Guangxi,this study used Changliangyou 8 as the test variety,and set 3 seedling age treatments(30,35,and 40 days)and 2 sowing methods[precision drill sowing(PDS)and conventional broadcast sowing(CBS)].The effects of different treatments on rice seedling emergence rate,seedling uniformity,seedling quality,mechanical transplanting quality,number of population peak tillers,panicle-bearing tiller rate,uniformity of the number of effective panicles,dry matter accumulation,yield and yield components were analyzed.The results showed that moderately extending the seedling age to 35 days was beneficial to improving the seedling emergence rate,seedling uniformity,and seedling quality,reducing the missed transplanting rate,increasing the proportions of hills with 2～3 seedlings and 2～4 seedlings under mechanical transplanting conditions and the uniformity of the number of mechanically transplanted seedlings,maintaining a large number of population peak tillers and high uniformity of the number of effective panicles,and thereby stabilizing the yield.Under the 3 seedling age treatments,compared with CBS,PDS significantly improved the seedling uniformity,root coiling force,uniformity of the number of mechanically transplanted seedlings,proportions of hills with 2～3 seedlings and 2～4 seedlings under mechanical transplanting conditions,and biomass yield,while significantly reducing the missed transplanting rate.By significantly increasing the number of population peak tillers and uniformity of the number of effective panicles,PDS further significantly increased the yield.In conclusion,in the hybrid rice production of southern Guangxi,choosing a 35-day seedling age and adopting PDS is conducive to improving seedling quality,mechanical transplanting quality,and yield of hybrid rice.关键词
精准条播/秧龄/杂交稻/秧苗素质/机插质量/产量Key words
precision drill sowing/seedling age/hybrid rice/seedling quality/mechanical transplanting quality/yield分类
农业科技引用本文复制引用
王众,高国庆,江立庚,梁天锋,钟晓媛,唐茂艳,黄严,朱德峰,王亚梁,覃勇,陈雷,张晓丽..秧龄和播种方式对杂交稻秧苗素质、机插质量及产量的影响[J].杂交水稻,2026,41(4):61-69,9.基金项目
国家重点研发计划(2023YFD1902804) （2023YFD1902804）
广西科技计划项目(农业农村领域)(桂科农AB2509520001) （农业农村领域）
广西农业科学院基本科研业务专项(桂农科2024YP010,2025YP034,2026YT070) （桂农科2024YP010,2025YP034,2026YT070）
广西农业科学院科技发展基金自选项目(桂农科2025ZX23) （桂农科2025ZX23）
