中国农学通报2025，Vol.41Issue(36)：1-11,11.
基于移栽行距和播期配置优化的晚粳稻生长特性、产量与品质调控研究
Study on Growth,Yield,and Quality Regulation of Late Japonica Rice Based on Transplanting Row Spacing and Sowing Date Optimization
摘要
Abstract
This study aimed to clarify the regulatory effects of transplanting row spacing and sowing date combinations on the growth,yield,and quality of late japonica rice.Using two cultivars of'Suxiangjing 100'(conventional late japonica rice)and'Yongyou 1526'(hybrid late japonica rice)as materials,a three-factor randomized block design was adopted to systematically measure parameters including tiller dynamics,leaf area index,SPAD value,dry matter accumulation,yield,and quality traits.Results showed that the combination of alternate wide-narrow row transplanting and sowing on May 23 performed best.Under this combination,'Suxiangjing 100'and'Yongyou 1526'achieved spike formation rates of 82.96%and 79.80%,SPAD values of 46.02 and 50.08,leaf area indices of 5.68 and 7.64 during the booting stage,dry matter accumulation of 23.34 and 26.37 t/hm2,and yields of 11.9 and 13.9 t/hm2,respectively,which were all significantly higher than other treatments(P<0.01).In terms of quality,chalkiness degree decreased to 4.1%,amylose content remained moderate,gel consistency reached 90.1 mm,and head rice rate increased to 76.1%,indicating coordinated improvement in overall quality(P<0.05).The study concluded that the optimized combination of wide-narrow row transplanting and appropriate sowing date can synergistically enhance canopy structure and material conversion efficiency,contributing to stable and high-quality production.This approach is suitable for application in the Taihu Lake region and surrounding late japonica rice production areas.关键词
晚粳稻/移栽行距/播期优化/宽窄行栽培/光合特性/成穗率/干物质积累/稻米品质Key words
late japonica rice/transplanting row spacing/sowing date optimization/alternate wide-narrow row planting/photosynthetic characteristics/spike formation rate/dry matter accumulation/rice quality分类
农业科技引用本文复制引用
何丽华,宋云生,董明辉,江贻,吴正贵..基于移栽行距和播期配置优化的晚粳稻生长特性、产量与品质调控研究[J].中国农学通报,2025,41(36):1-11,11.基金项目
江苏省亚夫科技服务项目"苏南(吴江区)稻油轮作控量提能增汇综合示范基地"(KF(25)2004) （吴江区）
江苏省农业重大技术协同推广计划项目"优良食味粳稻新品种产质提升技术协同推广计划"(2025-ZYXT-SZ02) （2025-ZYXT-SZ02）
苏州市科技强农创新项目"稻麦两熟农田提产增汇与控量增效协同技术体系研发与应用"(SNG2025018). （SNG2025018）
