Abstract: In this study，we investigated the effects of different dilutions of Laminaria japonica and Enteromorpha prolifera fermentation solutions on seed germination and seedling growth of cabbage to provide theoretical basis for the development and application of seaweed resources in crop production.Using cabbage seeds‘Sundance 103’as test material，three different mass fraction groups（1%，5% and 20% groups） of two kinds of seaweed fermentation solution were used to carry out cabbage seed germination test and seedling foliar spraying test.The physiological regulation effects of fermentation solution on cabbage crop was analyzed by measuring the germination indexes of the seeds as well as the growth and physiological indexes of the seedlings.The results showed that the germination indexes of cabbage seeds were significantly different between the two seaweed fermentation solutions in different mass fraction groups：5% Enteromorpha prolifera fermentation solution had the highest germination potential，which increased by 9.32% compared to CK.20% Enteromorpha prolifera fermentation solution had the highest seed germination rate of 94.67%，which increased by 10. 94% compared to CK. 20% Laminaria japonica fermentation solution had the best effect in promoting embryo development.The embryo radicle length and germ length were significantly increased by 22.03% and 28.10%，respectively，compared to CK. The different mass fraction group treatments of the two seaweed fermentation solutions had significant differences in the growth indexes of cabbage seedlings：1% Laminaria japonica fermentation solution had the greatest growth promotion effect on seedlings，with the stem length increased by 17.46% compared to CK，and the fresh weight increased significantly by 34.85% compared to CK. The different mass fraction treatments of two kinds of seaweed fermentation solutions had significant differences in the physiological resistance indexes of cabbage seedlings：as the mass fraction of seaweed fermentation solution increased，the MDA content showed a rising trend，and the 1% treatment group was the lowest，which was smaller than CK.The SOD and CAT content showed a decreasing trend，and the 1% treatment group was the highest，which was significantly higher than CK.In summary，the two seaweed fermentation solutions could not only promote the seed germination and seedling growth，but also reduce the accumulation of MDA，increase the SOD and CAT content，and effectively enhance the level of plant resistance，with the best overall effect from 1% mass fraction Laminaria japonica fermentation solution.

Key words: Laminaria japonica, Enteromorpha prolifera, Fermentation solution, Cabbage, Seed germination, Seedling growth

摘要： 研究不同质量分数海带、浒苔发酵液对甘蓝种子萌发及幼苗生长的影响，为海藻资源在农作物生产中的开发应用提供理论依据。以圣地斯103甘蓝种子为试验材料，分别采用2种海藻发酵液的3个不同质量分数（1%、5%和20%）进行甘蓝种子萌发试验和幼苗叶面喷施试验，通过测定甘蓝种子的发芽指标以及甘蓝幼苗的生长、生理指标，分析发酵液对甘蓝作物的生理调控效应。结果表明，2种海藻发酵液的不同质量分数处理甘蓝种子萌发指标有着显著差异：5%浒苔发酵液组的甘蓝种子发芽势最高，较空白对照组提高9.32%；20% 浒苔发酵液组的甘蓝种子发芽率最高，为94.67%，较空白对照组提高10.94%；20% 海带发酵液促进胚发育效果最佳，胚根长度、胚芽长度分别较空白对照组显著增加22.03%、28.10%。2种海藻发酵液的不同质量分数处理甘蓝幼苗生长指标有着显著差异：1%海带发酵液对甘蓝幼苗的生长促进作用最大，茎长较空白对照组增加17.46%，鲜质量较空白对照组显著增加34.85%。2种海藻发酵液的不同质量分数处理甘蓝幼苗生理抗逆性指标有着显著差异。随着海藻发酵液质量分数的增加，丙二醛（MDA）含量呈升高趋势，1%处理组最低，小于空白对照组。超氧化物歧化酶（SOD）以及过氧化氢酶（CAT）含量呈下降趋势，1%处理组最高，显著高于空白对照组。综上，适宜浓度的2种海藻发酵液既能促进种子的萌发和幼苗的生长，也可降低MDA的积累，提高SOD、CAT含量，有效增强植物的抗逆水平，以1%质量分数海带发酵液综合效果最佳。

关键词: 海带, 浒苔, 发酵液, 甘蓝, 种子萌发, 幼苗生长