浙江农业科学 ›› 2026, Vol. 67 ›› Issue (2): 321-325.DOI: 10.16178/j.issn.0528-9017.20250769

• 粮食作物 • 上一篇    下一篇

不同粳稻品种成熟期抗倒伏性和产量性状比较

翁飞(), 汪溢, 许乃霞, 李庆魁   

  1. 苏州农业职业技术学院,江苏 苏州 215008
  • 收稿日期:2025-10-18 出版日期:2026-02-28 发布日期:2026-03-07
  • 作者简介:翁飞,研究方向为作物栽培生理。E-mail:feiweng91@126.com
  • 基金资助:
    江苏省高等学校基础科学(自然科学)研究项目(25KJD210006);江苏高校“青蓝工程”优秀青年骨干教师项目(2023);苏州农业职业技术学院科研创新团队专项(CXTD202410)

Comparison of lodging resistance and yield traits among different japonica rice varieties at the maturity stage

WENG Fei(), WANG Yi, XU Naixia, LI Qingkui   

  1. Suzhou Polytechnic Institute of Agriculture,Suzhou 215008,Jiangsu
  • Received:2025-10-18 Online:2026-02-28 Published:2026-03-07

摘要:

为探究太湖稻区不同粳稻品种的抗倒伏性差异及其与产量构成的关系,本研究选取南粳46、沪软1212、宁香粳9号和扬农粳1218等4个品种,在相同栽培条件下比较其成熟期的茎秆力学特性、节间形态、株高结构及产量构成。结果表明,南粳46和宁香粳9号的折断弯矩和弯曲应力较高,具有更大的抗倒伏潜力;扬农粳1218、宁香粳9号的茎粗和壁厚较大,节间充实度较高;南粳46和宁香粳9号的株高和重心高较低,抗倒伏性较好;扬农粳1218、宁香粳9号的产量较高。尽管扬农粳1218在形态指标上具备一定优势,但其高株型结构增加了倒伏风险。综上,南粳46与宁香粳9号在抗倒伏性与产量之间表现出较好的平衡,适宜作为太湖稻区稳产抗倒伏型粳稻品种推广应用。

关键词: 粳稻, 形态, 抗倒伏, 产量

Abstract:

To investigate the differences in lodging resistance among japonica rice varieties in the Taihu Lake region and their relationship with yield components,four varieties—Nanjing 46,Huruan 1212,Ningxiangjing 9,and Yangnongjing 1218 were selected to compare their stem mechanical characteristics,internode morphology,plant height structure and yield composition at the mature stage under identical cultivation conditions. The results showed that the breaking strength and bending stress of Nanjing 46 and Ningxiangjing 9 were relatively high,indicating greater potential for resisting lodging. The stem diameter and wall thickness of Yangnongjing 1218 and Ningxiangjing 9 were larger,and the internode fullness was higher. The plant height and center of gravity height of Nanjing 46 and Ningxiangjing 9 were relatively low,showing better lodging resistance. Besides,the yield of Yangnongjing 1218 and Ningxiangjing 9 was relatively high. Although Yangnongjing 1218 showed favorable morphological traits,its tall plant architecture increased lodging risk. Overall,Nanjing 46 and Ningxiangjing 9 exhibited a desirable balance between lodging resistance and yield,suggesting their suitability as stable and lodging-resistant japonica rice varieties for cultivation in the Taihu Lake region.

Key words: japonica rice, morphology, lodging resistance, yield

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