安徽农学通报2026，Vol.32Issue(13)：7-12,6.DOI:10.16377/j.cnki.issn1007-7731.2026.13.002
优质籼型水稻品种Y两优4299的综合评价
Comprehensive evaluation of the high-quality indica rice variety Y Liangyou 4299
葛小平 1王东 2吴跃敏 3李凤丹 3徐博 3许竞好3
作者信息
- 1. 芜湖市种子管理站,安徽 芜湖 241011
- 2. 芜湖市弋江区农业农村水务局,安徽 芜湖 241000
- 3. 安徽禾之韵农业科技有限公司,安徽 芜湖 241000
- 折叠
摘要
Abstract
In this study,Y Liangyou 4299 was used as the test variety.A completely randomized block design was adopted,and regional trials were conducted at 17 experimental sites in the middle and lower reaches of the Yangtze River from 2021 to 2022.Indicators such as yield,agronomic traits,disease and pest resistance,and rice quality were measured.Comprehensive evaluation was performed using t-test,coefficient of variation,principal component analysis,partial least squares discriminant analysis,and correlation analysis.The results showed that Y Liangyou 4299 was superior to the control variety Fengliangyou No.4 in most agronomic traits,including average effective panicle number.The average yields of Y Liangyou 4299 in 2021 and 2022 were 655.39 and 674.91 kg/667 m²,respectively,representing yield increases of 5.58%and 8.18%compared with the control.The coefficients of variation for yield and agronomic traits ranged from 4.43%to 11.51%and from 3.85%to 12.87%,respectively.Disease and pest resistance identification indicated that the variety was resistant to rice blast,moderately susceptible to bacterial blight,and highly susceptible to brown planthopper.Rice quality analysis showed that the quality grades of Y Liangyou 4299 reached Grade 3 high-quality rice in 2021 and Grade 2 in 2022.Correlation analysis indicated that thousand-grain weight was negatively correlated with yield,and this trait was identified as a key factor causing the difference between Y Liangyou 4299 and Fengliangyou No.4.In summary,Y Liangyou 4299 exhibits excellent performance in high-yield potential,yield stability,and blast resistance,with strong adaptability and certain promotion potential.关键词
水稻/主成分分析/农艺性状/综合评价Key words
rice/principal component analysis/agronomic traits/comprehensive evaluation分类
农业科技引用本文复制引用
葛小平,王东,吴跃敏,李凤丹,徐博,许竞好..优质籼型水稻品种Y两优4299的综合评价[J].安徽农学通报,2026,32(13):7-12,6.
