不同旱直播方式对水稻根系形态特征及产量的影响
CSTR:
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

S511.042

基金项目:

宁夏回族自治区重点研发计划项目(2018BBF02018)


Effects of Different Dry Direct Seeding Methods on Root Morphological Characteristics and Yield of Rice
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    为明确不同旱直播方式对水稻根系形态及产量的影响,本试验以宁粳47号和宁粳43号水稻品种为材料,采用保墒旱条播、保墒旱穴播以及播后上水3种旱直播方式,研究不同旱直播方式对水稻根系形态及产量的影响。结果表明,2个水稻品种在不同旱直播方式下根系形态变化具有一致性。苗期与灌浆期,保墒旱条播方式根长、根表面积、根体积以及根干重均大于保墒旱穴播与播后上水方式;孕穗期,保墒旱穴播方式根长、根表面积、根体积以及根干重均大于保墒旱条播与播后上水方式;播后上水方式在不同生育时期根长、根表面积、根体积均为最小。保墒旱条播与保墒旱穴播方式根直径在不同生育时期表现出下降趋势,播后上水方式表现出先上升后下降的趋势;生育中后期,播后上水方式根直径均大于保墒旱条播与保墒旱穴播方式。不同处理间宁粳47号保墒旱穴播方式产量最高;宁粳43号播后上水方式产量最高。相关性分析表明,孕穗期宁粳47号根长、根体积及根干重与产量间呈极显著正相关,灌浆期呈正相关;孕穗期宁粳43号根长、根表面积及根体积与产量间呈显著负相关,灌浆期呈正相关。

    Abstract:

    In order to clarify the effects of different dry direct seeding methods on the root morphology and yield of rice, this study used Ningjing 47 and Ningjing 43 varieties to compare the differences of rice root morphology and yield under different dry direct seeding methods, which were drill sowing with moisture conservation, hole sowing with moisture conservation and water supply after sowing. The results showed that the root morphological changes of the two cultivars were consistent under different dry direct seeding methods. The root length, root surface area, root volume and root dry weight of drill sowing were all higher than those of hole sowing and water supply after sowing at seedling and filling stage. At booting stage, the root length, root surface area, root volume and root dry weight of hole sowing were all higher than those of drill sowing and water supply after sowing, and the water supply after sowing was the least at different growth stages. The root diameter of drill and hill-drop sowing showed a decreasing trend at different growth stages, while the root diameter of water supply after sowing showed a rising trend at first and then decreasing trend after sowing. In the middle and later stages of growth, the root diameter of the water supply after sowing after sowing was larger than that of the drill and hole sowing methods. In conclusion, under the same sowing amount, the root morphology of drill sowing was better than that of hole sowing and water supply after sowing at seedling stage and tillering stage, which was more conducive to the growth and development of plants, and the root senescence was slow in the late growth stage, which was more conducive to the enrichment of seeds of plants, so as to increase the yield. Correlation analysis showed that the root length, root volume and root dry weight of Ningjing 47 at booting stage had extremely significant positive correlation with yield, and had positive correlation at filling stage.The root length, root surface area and root volume of Ningjing 43 at booting stage had significant negative correlation with yield, and had positive correlation at filling stage.

    参考文献
    相似文献
    引证文献
引用本文

叶旭波,冶会锋,马童杰,代晓华.不同旱直播方式对水稻根系形态特征及产量的影响[J].东北农业科学,2024,49(3):5-12.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2023-10-21
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2024-10-11
  • 出版日期:
文章二维码