浙江农业科学 ›› 2026, Vol. 67 ›› Issue (2): 314-320.DOI: 10.16178/j.issn.0528-9017.20250161

• 粮食作物 • 上一篇    下一篇

浸种时间与出苗温度对水稻秧苗生长的影响

兰天明1(), 李慧1, 陈惠哲1, 章飞杰2, 朱德峰1, 王亚梁1()   

  1. 1.中国水稻研究所,浙江 杭州 310006
    2.杭州市富阳区农业技术推广中心,浙江 杭州 311400
  • 收稿日期:2025-03-05 出版日期:2026-02-28 发布日期:2026-03-07
  • 通讯作者: 王亚梁,E-mail:wangyaliang@caas.cn
  • 作者简介:兰天明,研究方向为水稻高产生理与机械化栽培。E-mail:minglh173@163.com
  • 基金资助:
    国家重点研发计划项目(2023YFD2301304);云南省科技厅科技计划项目(202402AE090007);浙江省农业重大技术协同推广计划(2023ZDXT07-2)

Effects of soaking time and emergence temperature on seedling growth of rice seedlings

LAN Tianming1(), LI Hui1, CHEN Huizhe1, ZHANG Feijie2, ZHU Defeng1, WANG Yaliang1()   

  1. 1.China National Rice Research Institute,Hangzhou 310006,Zhejiang
    2.Agricultural Technology Extension Center of Fuyang District,Hangzhou City,Hangzhou 311400,Zhejiang
  • Received:2025-03-05 Online:2026-02-28 Published:2026-03-07

摘要:

为明确水稻种子浸种时间和出苗温度对秧苗生长的影响,本研究以甬优1540和秀水134为试验材料,设置3个浸种时间:甬优1540(T1,浸种24 h;T2,浸种48 h;T3,浸种48 h、催芽24 h),秀水134(T4:浸种48 h,T5:浸种72 h,T6:浸种72 h、催芽24 h);同时设置3个出苗温度(24 ℃、28 ℃、32 ℃),系统比较了不同处理对胚芽鞘长度、胚芽粗度、苗高、叶龄、茎基宽、根长、地上部干物质量等的影响。结果表明,适当提高出苗温度和延长浸种时间有利于提高出苗率和秧苗素质,而出苗温度和浸种时间对胚芽鞘长度、胚芽粗度以及秧苗充实度的影响较小。本研究结果为水稻种子浸种时间与出苗温度的选择提供了理论支持。

关键词: 叠盘, 水稻, 浸种, 出苗温度, 秧苗素质

Abstract:

In order to determine the effects of seed soaking time and seedling emergence temperature on the growth of rice seedlings,Yongyou 1540 and Xiushui 134 were used as test materials,and three seed soaking time were set for each of the two varieties:Yongyou 1540(T1,soaking 24 h;T2,soaking 48 h;T3,soaking 48 h + pregermination 24 h),Xiushui 134(T4,soaking 48 h;T5,soaking 72 h;T6,soaking 72 h + pregermination 24 h),and three seedling emergence temperatures(24 ℃,28 ℃,32 ℃). The effects of different treatments on coleoptile length,embryo thickness,seedling height,leaf age,stem base width,root length,above-ground dry matter accumulation were systematically compared. The results showed that appropriately increasing the emergence temperature and extending the soaking time of seeds were beneficial to improving the emergence rate and the quality of seedlings. However,the emergence temperature and soaking time had a relatively small impact on the coleoptile length,embryo thickness,and the fullness of the seedlings. The results of this study provides theoretical support for the selection of seed soaking time and emergence temperature of rice seeds.

Key words: seedling tray overlapping, rice, soaking, emergence temperature, seedling quality

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