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Biostimulant Effects of Seaweed Extract and Amino Acids On Growth, Antioxidants, and Nutrient Content of Yarrow (Achillea millefolium L.) In the Field and Greenhouse Conditions
Communications in Soil Science and Plant Analysis ( IF 1.8 ) Pub Date : 2021-01-18 , DOI: 10.1080/00103624.2021.1872596
Fatemeh Shafie 1 , Hassan Bayat 1 , Mohamad Hossein Aminifard 1 , Saeid Daghighi 1
Affiliation  

ABSTRACT

The aim of this study was to investigate the effect of foliar spray of seaweed extract (SE) and amino acids (AA) on growth characteristics, antioxidant activity, and nutrient elements of yarrow (Achillea millefolium L.) in the field and greenhouse conditions. The experiment was conducted as a randomized complete block design with six replications. Treatments included foliar spray of SE (1, 2, and 3 ml l−1) and AA (1.5 and 3 ml l−1) along with the control. The results showed that the application of different levels of SE and AA had positive effects on the growth indices, chlorophyll content, carotenoids, antioxidants, and nutrient content of yarrow in the field and greenhouse conditions. In the greenhouse, the highest shoot dry weight was obtained by the application of SE and AA at a concentration of 3 ml–l with 54% and 53% increase compared to the control. Foliar spray of SE and AA increased the total phenols, total flavonoids, and antioxidant activity of the leaf and flower of yarrow in the field and greenhouse conditions. Under field conditions, the highest antioxidant activity of flowers was obtained from 3 ml l–l AA treated plants by 17% increase compared to the control. The content of N, P, and K in the leaf was improved by foliar spray of SE and AA. In particular, the application of 2 ml l−1 SE and 3 ml l−1 AA had the most significant effect in improving the growth and yield of yarrow in the field and greenhouse experiments.



中文翻译:

在田间和温室条件下,海藻提取物和氨基酸对arrow草(Achillea millefolium L.)的生长,抗氧化剂和营养成分的生物刺激作用

摘要

这项研究的目的是研究在田间和温室条件下叶面喷洒海藻提取物(SE)和氨基酸(AA)对草(Achillea millefolium L.)的生长特性,抗氧化活性和营养元素的影响。实验是作为一个随机的,完整的实验设计,进行了六次重复实验。处理包括叶面喷洒SE(1、2和3 ml l -1)和AA(1.5和3 ml l -1)以及控件。结果表明,在田间和温室条件下,不同水平的SE和AA的施用对草的生长指数,叶绿素含量,类胡萝卜素,抗氧化剂和养分含量具有积极影响。在温室中,以3 ml –l的浓度施用SE和AA可获得最高的茎干重量,与对照相比分别增加了54%和53%。在田间和温室条件下,叶面喷施SE和AA可以增加欧arrow草的叶和花中的总酚,总类黄酮和抗氧化活性。在田间条件下,从3 ml l –l获得了最高的花抗氧化活性经AA处理的植物与对照相比增加了17%。叶面喷施SE和AA可以提高叶片中N,P和K的含量。特别地,在田间和温室实验中,施用2 ml l -1 SE和3 ml l -1 AA对改善草的生长和产量具有最显着的作用。

更新日期:2021-01-18
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