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农学学报

农学学报 ›› 2026, Vol. 16 ›› Issue (4): 1-5.doi: 10.11923/j.issn.2095-4050.cjas2024-0220

• 农艺科学 生理生化 •    下一篇

不同产量水平甬优连作晚稻生产特性

蒋琪1(), 陈少杰1(), 邬晓君2, 何冰清1, 吴降星1, 谌江华3   

  1. 1 宁波市农业技术推广总站， 浙江宁波 315012
    2 奉化区农业技术推广服务总站， 浙江奉化 315500
    3 宁波市农业科学研究院， 浙江宁波 315012
  • 收稿日期:2024-12-10 修回日期:2025-02-15 出版日期:2026-04-15 发布日期:2026-04-15
  • 通讯作者:
    陈少杰，男，1979年出生，宁波人，正高级农艺师，本科，从事粮油生产技术推广工作。通信地址：315012 宁波市海曙区宝善路220号 宁波市农业技术推广总站，Tel：0574-89385579，E-mail：。
  • 作者简介:

    蒋琪，男，1988年出生，农艺师，硕士，主要从事水稻生产技术研究及推广。通信地址：315012 宁波市海曙区宝善路220号 宁波市农业技术推广总站，Tel：0574-89385583，E-mail：。

  • 基金资助:
    宁波市“科技创新2025”重大专项“甬优系列杂交水稻良种良法配套高效栽培技术研究”(2019B10003); 宁波市农业技术推广项目“宁波市水稻化肥减量增效“三新”配套技术集成与示范推广”(2023NT005)

Population Characteristics of ‘Yongyou’ Series of Late Indica-Japonica Hybrid Rice at Different Yield Levels in Double-Cropping Rice Area

JIANG Qi1(), CHEN Shaojie1(), WU Xiaojun2, HE Bingqing1, WU Jiangxing1, CHEN Jianghua3   

  1. 1 Ningbo Agricultural Technology Extension Center, Ningbo, Zhejiang 315012
    2 Fenghua Agricultural Technology Extension Center, Fenghua, Zhejiang 315500
    3 Ningbo Academy of Agricultural Sciences, Ningbo, Zhejiang 315012
  • Received:2024-12-10 Revised:2025-02-15 Online:2026-04-15 Published:2026-04-15

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摘要：

明确甬优籼粳杂交水稻作连作晚稻栽培的高产群体特征，为温光资源相对不足地区机插晚稻高产栽培提供技术参考，本研究依托波市2021—2022 年水稻连片超高产攻关方和高产示范方，以‘甬优1540’和‘甬优538’，构建了超高产和高产两个不同产量水平群体，对其产量构成、群体质量形成特征等进行了调查。结果表明，超高产群体平均产量达10.90 t/hm2，比高产群体高10.32%；产量构成因素中，超高产有效穗数达245.28万/hm2，较高产增加6.25%，是增产的主要因素。结果表明，与高产群体相比，超高产群体分蘖发生快，高峰苗数低，够苗期早，后期茎蘖数缓慢下降，有效穗数多，成穗率高(62.84%)；超高产群体叶面积指数在有效分蘖临界叶龄期、抽穗期和成熟期均高于高产群体，其中抽穗期达显著水平；超高产群体干物质积累优势主要在移栽至有效分蘖临界叶龄期和抽穗至成熟期，分别比高产群体高20.51%和20.99%，且抽穗后干物质积累占比达49.59%。综上，甬优连作晚稻超高产群体通过优化群体结构、强化关键生育期物质积累实现高产，研究结果为宁波及类似生态区连作晚稻机插高产栽培提供了科学依据。

关键词: 连作晚稻, 甬优水稻, 超高产群体, 叶面积指数, 成穗率, 高产示范方

Abstract:

In order to analyze the high-yield characteristics of ‘Yongyou’ series of late indica-japonica hybrid rice, we used ‘Yongyou 1540’ and ‘Yongyou 538’ to construct two populations with different yield levels, namely super-high yield and high yield, for continuous late rice cultivation. Their yield composition and population quality formation characteristics were investigated. The results showed that the average yield of super-high yield population reached 10.9 t/hm2, which was 10.32% higher than that of high-yielding population. Among the yield components, the number of effective panicles of super-high yield reached 2.4528 million/hm2, which was 6.25% higher than that of high yield, which was the main factor for increasing yield. The results also showed that, compared to high-yielding population, super-high yield population exhibited faster tillering initiation, lower peak seedling numbers, earlier timely seedling establishment, a gradual decline in stem-tiller numbers during late growth stages, higher effective panicle counts, and an elevated panicle-forming rate of 62.84%. The leaf area index of super-high yield population surpassed that of high-yielding population at the critical leaf-age stage for effective tillering, heading, and maturity stages, with a significant difference at the heading stage. Super-high yield population demonstrated superior dry matter accumulation primarily from transplanting to the critical leaf-age stage for effective tillering and from heading to maturity, outperforming high-yielding population by 20.51% and 20.99%, respectively. In summary, the super-high yield population of ‘Yongyou’ double-cropping late rice achieved high yield by optimizing population structure and strengthening material accumulation at key growth stages. The research results provided a scientific basis for high-yielding cultivation of double-cropping late rice in Ningbo and similar ecological areas.

Key words: late rice in double-cropping rice area, ‘Yongyou’ series, super-high yield population, leaf area index, panicle-forming rate, high-yield demonstration field