SUN Yan,ZHANG Hongji,LIU Wenlin,et al.Effects of Different Fertilization Levels on Growth,Development and Yield Components of Potted Longfumai 196[J].HEILONGJIANG AGRICULTURAL SCIENCES,2026,(07):1-5.[doi:10.11942/j.issn1002-2767.2026.07.0001]
不同施肥水平对盆栽龙辐麦196生长发育及产量构成的影响
- Title:
- Effects of Different Fertilization Levels on Growth,Development and Yield Components of Potted Longfumai 196
- 文章编号:
- 1
- 文献标志码:
- A
- 摘要:
- 为高效快速探究优质强筋小麦新品种龙辐麦196的肥料响应特性,优化其栽培管理措施,采用盆栽模拟试验,在可控条件下设置对照(CK,原土)、低肥、中肥和高肥4个施肥处理,系统测定分析了龙辐麦196苗期、抽穗期和乳熟期的根长、株高、根干重和植株干重等生长指标和动态响应,并于成熟后考种分析穗长、小穗数、单株粒数等产量构成因素。结果表明,施肥能够显著影响龙辐麦196的生长发育动态。对照处理因养分缺乏促使根系向下延伸,抽穗期龙辐麦196根长达39.80 cm,显著高于施肥处理;中肥处理在关键产量性状上表现最优,穗长12.17 cm、有效小穗数20.00个、单株粒数41.20粒,且不育小穗数与无效分蘖较少,表明该施肥水平有利于协调营养与生殖生长;高肥处理虽前期促进株高增长,但后期因白粉病严重,植株干质量下降23.93%,穗部发育受阻,单株粒数降至33.97粒;低肥处理在乳熟期仍维持根干质量(2.70 g)与植株干质量(6.77 g)增长,表现出较强适应性,但整体产量潜力低于中肥。
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备注/Memo
收稿日期:2026-01-26 基金项目:“十四五”国家重点研发计划项目(2022YFD1200701);黑龙江省农业科学院创新工程资助项目(CX23GG03)。 第一作者: 孙岩(1972—),女,硕士,副研究员,从事小麦辐射诱变与生物技术育种研究。E-mail:sunyan720722@sohu.com。 通信作者: 张宏纪(1969—),男,博士,研究员,从事小麦诱变与生物技术育种研究。E-mail:fumai@163.com。
