湖南农业科学Issue(6)：16-20,25,6.DOI:10.16498/j.cnki.hnnykx.2025.006.003
不同移栽密度和栽插苗数对早稻稻米品质的影响
Effects of Transplanting Density and Number of Transplanted Seedlings per Hill on Rice Quality of Early-Season Rice
摘要
Abstract
This study aims to explore the effects of transplanting density and number of transplanted seedlings per hill on the rice quality of early-season rice.The rice variety'Xiangzaoxian 32'was planted,and a split-plot design was adopted.The number of transplanted seedlings per hill was taken as the main plot,with three levels of R1(1 seedling per hill),R2(4 seedlings per hill),and R3(7 seedlings per hill).The transplanting density was taken as the split-plot,with three levels of M1(25 cm×10 cm),M2(25 cm×15 cm),and M3(25 cm×20 cm).The results showed that transplanting density and number of transplanted seedlings per hill had significant effects on rice quality.The R2M2 treatment showed the brown rice rate 1.41%higher than the R1M3 treatment,the milled rice rate 1.89%and 2.85%higher than the R1M1 and R1M3 treatments,the head rice rate 6.97%and 7.34%higher than the R2M1 and R3M1 treatments,and the aspect ratio 1.01%and 1.52%lower than R1M1 and R1M3 treatments,respectively,all with significant differences.In addition,the amylose content of the R2M2 treatment significantly increased by 17.24%compared with that of the R2M1 treatment.In summary,the R2M2 treatment can increase the amylose content while improving the processing quality(brown rice rate,milled rice rate,and head rice rate)and appearance quality(chalkiness,chalky grain percentage,and aspect ratio).关键词
水稻/移栽密度/栽插苗数/稻米品质Key words
rice/transplanting density/number of transplanted seedlings per hill/rice quality分类
农业科技引用本文复制引用
易石武,熊艺,刘奕晗,唐金萍,杨庆飞,吴建军,陈浩,王悦..不同移栽密度和栽插苗数对早稻稻米品质的影响[J].湖南农业科学,2025,(6):16-20,25,6.基金项目
国家重点研发计划(2023YFD2301305) （2023YFD2301305）
中国烟草总公司湖南省公司科技重点项目(HN2023KJ03) （HN2023KJ03）
