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中国农学通报

中国农学通报 ›› 2026, Vol. 42 ›› Issue (11): 9-15.doi: 10.11924/j.issn.1000-6850.casb2025-0907

• 农学·农业基础科学 • 上一篇    下一篇

不同浓度β-罗勒烯对玉米种子萌发的影响

肖亚琴1(), 周子睿1, 阮颖2, 刘春林1()   

  1. 1 湖南农业大学农学院， 长沙 410128
    2 湖南农业大学生命科学院， 长沙 410128
  • 收稿日期:2025-11-05 修回日期:2026-02-11 出版日期:2026-06-12 发布日期:2026-06-12
  • 通讯作者:
    刘春林，男，1963年出生，湖南株洲人，二级教授，博士，研究方向：作物遗传育种。通信地址：410128 湖南省长沙市芙蓉区农大路 1号 湖南农业大学农学院，Tel：0731-84618076，E-mail：。
  • 作者简介:

    肖亚琴，女，1999年出生，湖南衡阳人，硕士研究生，研究方向：作物农艺与种业。通信地址：410128 湖南省长沙市芙蓉区农大路1号 湖南农业大学农学院，Tel：0731-84618076，E-mail：。

  • 基金资助:
    国家重点研发计划项目课题“油菜和花生稳产关键基因位点挖掘”(2022YFD1200400); 校级科学研究项目“特早熟油菜幼荚耐寒研究”(25KJ004)

Effects of Different Concentrations of β-Ocimene on Germination of Maize Seeds

XIAO Yaqin1(), ZHOU Zirui1, RUAN Ying2, LIU Chunlin1()   

  1. 1 College of Agriculture of Hunan Agricultural University, Changsha 410128
    2 College of Life Sciences of Hunan Agricultural University, Changsha 410128
  • Received:2025-11-05 Revised:2026-02-11 Published:2026-06-12 Online:2026-06-12

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摘要：

玉米种子贮藏老化易导致萌发活力下降、出苗不齐，生产上亟需绿色高效种子引发新技术。β‑罗勒烯是重要植物信号挥发性物质，但其作为种子引发剂的效应尚未明确。为探究β-罗勒烯对玉米种子萌发的调控作用，本研究以‘广甜糯1号’玉米种子为试验材料，设β-罗勒烯处理组0、0.5、1、1.5、2 mmol/L 5个浓度与6、12、18 h 3个引发时间，采用完全随机设计，测定发芽率、发芽指数、活力指数及幼苗根长、苗高、生物量等指标，结合隶属函数法与相关性分析筛选最优引发组合。结果表明：β-罗勒烯引发玉米种子萌发明显优于蒸馏水对照引发组，根据隶属函数法分析时间和浓度梯度可知，18 h处理最佳，12 h次之，6 h效果最差。所有处理中，1.5 mmol/L β-罗勒烯引发18 h的组合处理效果最佳，该组合下种子的发芽指数最高(30.38)、活力指数最高(1173.92)、幼苗根长最长(24.08 cm)、苗高最高(15.32 cm)、鲜重最高(1.53 g)、干重最高(0.15 g)。本试验是首次发现β-罗勒烯预浸处理可以显著提高玉米种子发芽率和活力。该研究结果为玉米种子引发提供了新的引发剂，也为其他作物种子引发提供了有益参考。

关键词: 玉米种子, β-罗勒烯, 种子引发, 种子引发剂, 种子萌发, 预浸处理, 种子引发技术, 种子萌发参数

Abstract:

The storage aging of maize seeds can easily lead to the decrease of germination activity and uneven emergence. Therefore, new green and efficient seed priming technologies are urgently needed in production. β-Ocimene is an important plant signal volatile substance, but its effect as a seed initiator is not yet clear. In order to explore the regulatory effect of β-ocimene on maize seed germination, taking maize seeds as the experimental materials, five concentration levels of β-ocimene treatment groups (0, 0.5, 1, 1.5, and 2 mmol/L) and three treatment durations (6, 12, and 18 h) were set. The germination rate, germination index, vigor index, seedling root length, seedling height and biomass were measured by completely random design, and the optimal priming combination was screened by membership function method and correlation analysis. The experimental results showed that β-ocimene priming for maize seed germination was significantly better than that of the distilled water control priming group. According to the analysis of time and concentration gradients by the subordinate function method, the 18 h treatment was the best, followed by 12 h, and the 6 h treatment had the worst effect. Among all treatments, the combined treatment of 1.5 mmol/L β-ocimene priming for 18 h had the best effect. Under this combination, the seed germination index was the highest (30.38), the vigor index was the highest (1173.92), the seedling root length was the longest (24.08 cm), the seedling height was the highest (15.32 cm), the fresh weight was the highest (1.53 g), and the dry weight was the highest (0.15 g). This experiment is the first to find that pre-soaking treatment with β-ocimene can significantly improve the germination rate and vigor of maize seeds. The results of this study provide a new priming agent for maize seed priming, and also provide a useful reference for seed priming of other crops.

Key words: maize seeds, β-ocimene, seed priming, seed priming agent, seed germination, pre-soaking treatment, seed priming technology, seed germination parameters

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