DENG Hongmei,CAI Xiaoyang,LI Wenjing,et al.Effects of Foliar Spraying Fulvic Acid on Growth and Quality of Ophiopogon japonicus[J].Northern Horticulture,2022,(21):106-114.[doi:10.11937/bfyy.20220832]
叶面喷施黄腐酸对麦冬生长及品质的影响
- Title:
- Effects of Foliar Spraying Fulvic Acid on Growth and Quality of Ophiopogon japonicus
- Keywords:
- Ophiopogon japonicus ; fulvic acid; quality; production; spraying on the leaf
- 文献标志码:
- A
- 摘要:
- 以麦冬为试材，采用田间小区试验，研究了叶面喷施不同浓度黄腐酸对麦冬农艺性状、产量、内在质量、药材商品等级占比、中微量元素吸收及重金属的影响，以期为黄腐酸在麦冬种植过程中的合理施用提供参考依据。结果表明：黄腐酸对麦冬药材产量呈低、中浓度促进而高浓度抑制的规律。1.0~2.0 g·L-1的黄腐酸处理后，促进了钙、铁、铜元素在块根中的吸收，单粒块根质量增长明显，最高增长34.19%；也促进了钙元素在叶片中的累积，促进了麦冬植株地上与地下物质积累量的增加，实现了块根产量的增长，在1.0 g·L-1时药材产量最高，增产23.59%，且药材中一等商品占比增长14.16%。而药材质量方面，在1.0~2.0 g·L-1浓度区间内，浸出物高于对照，而总多糖、总黄酮、总皂苷类药效成分也并未显著降低；指纹图谱的相似度高达0.977，与对照组分的一致性和稳定性较好；重金属及有害元素含量也符合《中国药典》2020年版的要求。综上所述，建议麦冬种植过程中黄腐酸叶面喷施的浓度为1.0~2.0 g·L-1。
- Abstract:
- Taking Ophiopogon japonicus as the test material,the effects of different concentrations of fulvic acid spraying on the Ophiopogon japonicus were studied,the agronomic traits,yield,internal quality,the proportion of commercial grades of medicinal materials,the absorption of medium and trace elements and heavy metals were measured,in order to provide reference for the rational application of fulvic acid in the cultivation of Ophiopogon japonicus .The results showed that the yield of Ophiopogon japonicus by fulvic acid was promoted by low concentration,promoted by medium concentration and inhibited by high concentration.After treatment with 1.0-2.0 g·L-1 fulvic acid,the absorption of calcium,iron and copper elements in tuberous roots was promoted,and the weight of single tuberous root increased significantly,with a maximum increase of 34.19%；it also promoted the accumulation of calcium in leaves.It promoted the increase of the aboveground and underground material accumulation of Ophiopogon japonicus plants,and achieved the growth of root tuber yield.At 1.0 g·L-1,the yield of medicinal materials was the highest,with an increase of 23.59%,and the proportion of first-class commodities in medicinal materials increased by 14.16%.In terms of the quality of medicinal materials,within this concentration range (1.0-2.0 g·L-1),the extracts were higher than the control,while the total polysaccharides,total flavonoids,and total saponins were not significantly reduced；the similarity of the fingerprints was as high as 0.977,and the consistency and stability of the control components were good；the content of heavy metals and harmful elements also meets the requirements of the 2020 edition of the Chinese Pharmacopoeia .In conclusion,it was suggested that the concentration of fulvic acid spraying on leaves of Ophiopogon japonicus was 1.0-2.0 g·L-1.
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备注/Memo
第一作者简介：邓红梅（1998-），女，硕士研究生，研究方向为中药品种、质量及资源开发。E-mail:2890291395@qq.com.责任作者：李敏（1962-），女，本科，教授，现主要从事中药品种、品质与资源开发等研究工作。E-mail:028limin@163.com.基金项目：国家药典委员会标准提高资助项目（2021Z02）；中医药产业发展重大资助项目(51020202109711）；四川省科技计划资助项目（2019YFN0038）；四川省科技成果转移转化示范资助项目（2019ZYZF0011）。收稿日期：2022-03-07