浙江农业科学

浙江农业科学 ›› 2025, Vol. 66 ›› Issue (9): 2084-2089.DOI: 10.16178/j.issn.0528-9017.20250392

• 粮食作物 • 上一篇    下一篇

山地丘陵地区新(复)垦耕地节水抗旱稻适应性筛选评价

胡铁军1(), 周飞1, 金树权2, 汪峰2, 陈宇眺3,*()   

  1. 1.余姚市农业技术推广服务总站,浙江 余姚 315400
    2.宁波市农业科学研究院,浙江 宁波 315101
    3.浙江省农业科学院 作物与核技术利用研究所,浙江 杭州 310021
  • 收稿日期:2025-05-29 出版日期:2025-09-11 发布日期:2025-10-14
  • 通讯作者: 陈宇眺,男,主要从事水稻栽培技术研究工作,E-mail:chenyutiao@zaas.ac.cn。
  • 作者简介:胡铁军(1984—),男,宁波余姚人,高级农艺师,从事水稻品种推广和栽培技术研究工作,E-mail:hutiejunyysw@126.com。
  • 基金资助:
    余姚市科技创新项目(2024JH03010040);宁波市公益类项目(2023S127);宁波市公益类项目(2024S105);宁波市科技特派员项目(2024S215);宁波市科技创新2025重大专项(2022Z169);浙江省产业团队项目(“非粮化”中低产复垦稻田地力和产能协同提升技术示范与推广);浙江省“三农九方”农业科技项目(2023NJF001)

Selection and evaluation of water-saving and drought-resistant rice adaptability in newly (reclaimed) cultivated land in mountainous and hilly areas

HU Tiejun1(), ZHOU Fei1, JIN Shuquan2, WANG Feng2, CHEN Yutiao3,*()   

  1. 1. Yuyao Agricultural Technology Extension Service Station, Yuyao 315400, Zhejiang
    2. Ningbo Academy of Agricultural Sciences, Ningbo 315101, Zhejiang
    3. Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang
  • Received:2025-05-29 Online:2025-09-11 Published:2025-10-14

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摘要：

为筛选出适宜在宁波市山地丘陵新(复)垦耕地种植的高产水稻品种,以9个节水抗旱稻品种为试验对象,通过相关性分析、聚类分析和主成分分析,综合评价不同节水抗旱稻品种在产量及其构成因子、稻米品质各指标的相关性和差异。结果表明,产量、整精米率、垩白度和胶稠度变异系数较高,是评价节水抗旱稻综合性能的重要因素。相关性分析表明,结实率与精米率、呈显著正相关,长宽比与垩白度、直链淀粉含量呈极显著负相关,说明提高结实率可提高稻米的加工品质,提高长宽比可提高稻米外观品质和蒸煮品质;通过聚类分析可知,9个品种的节水抗旱稻可分为4类,第Ⅳ类包含3个品种(旱优737、旱优73和旱优786),表现为产量高,碾米品质和外观品质较优,通过主成分分析综合得分,前3名分别为旱优786、旱优737和旱优73,可在宁波丘陵新(复)垦地区推荐种植。

关键词: 节水抗旱稻, 产量, 稻米品质, 聚类分析, 主成分分析

Abstract:

To screen high-yield rice varieties suitable for cultivation in newly (reclaimed) hilly and mountainous farmland in Ningbo, nine water-saving and drought-resistant rice (WDR) varieties were evaluated. Correlation analysis, cluster analysis, and principal component analysis were used to comprehensively assess the correlation and differences in yield components and rice quality indicators among the varieties. The results showed that yield, head rice rate, chalkiness and gel consistency had high coefficients of variation, making them important factors for evaluating the comprehensive performance of WDR. Correlation analysis indicated a significant positive correlation between milled rice rate and seed-setting rate, while a highly significant negative correlation was observed between length-to-width ratio and both chalkiness and amylose content. It was suggested that improving the seed-setting rate enhanced rice processing quality, while increasing the length-to-width ratio improved appearance and cooking quality. Cluster analysis categorized the nine WDR varieties into four groups. Group Ⅳ, comprising three varieties, including Hanyou 737, Hanyou 73, and Hanyou 786, exhibited high yield, superior milling quality, and improved appearance quality. Based on principal component analysis composite scores, the top three varieties were Hanyou 786, Hanyou 737, and Hanyou 73, which were recommended for cultivation in newly (reclaimed) hilly areas of Ningbo.

Key words: water-saving and drought-resistant rice (WDR), yield, rice quality, cluster analysis, principal component analysis

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