湖北农业科学2026，Vol.65Issue(6)：1-8,97,9.DOI:10.14088/j.cnki.issn0439-8114.2026.06.001
长江中游地区再生稻品种丰产性和稻米品质分析
Analysis of high yield and rice quality of ratooning rice varieties in the middle reaches of the Yangtze River
摘要
Abstract
A field experiment was conducted to evaluate the yield performance and rice quality of 15 two-line hybrid rice varieties and 15 three-line hybrid rice varieties in the main season and ratoon season,in order to clarify the high yield law and screen high yield and high quality varieties suitable for the middle reaches of the Yangtze River.The results showed that the yield of the two-line hybrid rice was 2.2％and 10.1％higher than that of the three-line hybrid rice in the main season and the ratoon season,respectively.The sig-nificant negative correlation between the 1 000-grain weight and the effective panicles of the ratoon season might be an important rea-son for its lower yield.The yield of Yongyou 4949 was the highest(9.75 t/hm2)in the main season,and that of Weiliangyou 6018 was the highest(5.17 t/hm2)in the ratoon season.The varieties with higher annual yield than the control included Weiliangyou 6018,Yaliangyou Meixiangxinzhan,Yongyou 4949,Jingxiangyou 72,E Liangyou 36,and Weiliangyou 8612.Through the cluster analysis of annual yield,the varieties with annual high yield included Weiliangyou 6018,Yaliangyou Meixiangxinzhan and Yongyou 4949.The analysis of rice quality showed that the chalkiness degree and chalkiness grain rate of the main season rice were significantly higher than those of the ratoon season rice,which was an important factor limiting its quality.The chalkiness grain rate and chalkiness degree of the two-line hybrid rice varieties were slightly higher than those of the three-line hybrid rice varieties.Cluster analysis of rice quali-ty showed that high-quality varieties included Chufengyou Yingxiangsimiao,Zhenliangyou Quanjingsimiao,Zhenliangyou Yingxiang-simiao,Quanyou 822,Longjingyou 4013,Shenliangyou Yuehesimiao,Y Liangyou 130,etc.关键词
再生稻/品种筛选/稻米品质/优质/丰产性/长江中游地区Key words
ratoon rice/variety screening/grain quality/superior quality/high yield/the middle reaches of the Yangtze River分类
农业科技引用本文复制引用
李阳,田茂涛,张作林,汪本福,张枝盛,谢艺,程建平..长江中游地区再生稻品种丰产性和稻米品质分析[J].湖北农业科学,2026,65(6):1-8,97,9.基金项目
国家重点研发计划"主要作物丰产增效科技创新工程"重点专项(2022YFD2301000) （2022YFD2301000）
