当前位置: X-MOL 学术Funct. Plant Biol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Greenhouse evaluation of branching, leaf yield and biochemical compositions of Stevia rebaudiana Bertoni to decapitation and foliar application of abscisic acid and fluridone.
Functional Plant Biology ( IF 3 ) Pub Date : 2020-07-31 , DOI: 10.1071/fp20045
Nasibeh Tavakoli Hasanaklou 1 , Mohammad Sedghi 1 , Foad Moradi 2 , Ali Ebadi Khazineh Ghadim 1 , Sodabeh Jahanbakhsh Ghodehkahriz 1
Affiliation  

Stevia is a herbaceous plant containing non-sugar sweeteners that could be regarded as a successor to sugar for diabetics. However, there are some problems with the cultivation of stevia, especially in the greenhouse, including unbranching and low sweetening agents. To overcome this issue, an experiment was designed to increase not only the branching and leaf production but also the sweetness. Therefore, a novel strategy using abscisic acid (0, 50, 100, 150 μM), its inhibitor, i.e. fluridone (0, 50, 100, 150 μM) and decapitation of plant apical meristems was applied. Results showed that when stevia was decapitated, dormant buds responded to the application of abscisic acid and fluridone. Under these conditions, axillary buds were developed to branches. As well leaf, total dry weight, soluble sugars and steviol glycosides (SGs) were significantly increased. In addition, the interaction of abscisic acid (50 and 100 μM) and fluridone (50 μM) had the highest positive effects on plant growth and steviol glycosides production rather than their sole applications. Results also indicated that decapitation removed a terminal dominance over a limited period of time and the terminal dominance was re-established with the growth of the terminal branches, whereas the influence of 50 µM fluridone on stevia was long term and the number of shoots was greater. Since stevia is a costly sweetener, the results of this study could be used in greenhouses, where the cultivation of stevia seems to be reasonable in terms of economic aspects.



中文翻译:

温室评估甜叶菊的分支,叶产量和生化成分对脱落酸和氟啶酮的断头和叶面施用的影响。

甜叶菊是一种含有非糖甜味剂的草本植物,可以被认为是糖尿病患者糖的继承者。但是,甜菊的栽培存在一些问题,特别是在温室中,包括无分支和低甜味剂。为了克服这个问题,设计了一个实验,不仅增加了分支和叶片的产量,而且增加了甜度。因此,应用了使用脱落酸(0、50、100、150μM),其抑制剂氟啶酮(0、50、100、150μM)和斩首植物顶生分生组织的新策略。结果表明,将甜叶菊断头后,休眠芽对脱落酸和氟啶酮的施用有反应。在这些条件下,腋芽发育成分支。以及叶子,总干重,可溶性糖和甜菊醇糖苷(SGs)显着增加。此外,脱落酸(50和100μM)和氟啶酮(50μM)的相互作用对植物生长和甜菊糖苷的生产具有最高的积极作用,而不是其单独的应用。结果还表明,断头在有限的时间内消除了末端优势,并且随着末端分支的增长而重新建立了末端优势,而50 µM氟啶酮对甜叶菊的影响是长期的,并且芽的数量更大。由于甜菊糖是一种昂贵的甜味剂,因此本研究的结果可用于温室中,从经济角度来看,甜菊的种植似乎是合理的。脱落酸(50和100μM)和氟啶酮(50μM)的相互作用对植物的生长和甜菊糖苷的生产具有最高的积极作用,而不是单独使用。结果还表明,断头在有限的时间内消除了末端优势,并且随着末端分支的增长而重新建立了末端优势,而50 µM氟啶酮对甜叶菊的影响是长期的,并且芽的数量更大。由于甜菊糖是一种昂贵的甜味剂,因此本研究的结果可用于温室中,从经济角度来看,甜菊的种植似乎是合理的。脱落酸(50和100μM)和氟啶酮(50μM)的相互作用对植物的生长和甜菊糖苷的生产具有最高的积极作用,而不是单独使用。结果还表明,断头在有限的时间内消除了末端优势,并且随着末端分支的增长而重新建立了末端优势,而50 µM氟啶酮对甜叶菊的影响是长期的,并且芽的数量更大。由于甜菊糖是一种昂贵的甜味剂,因此本研究的结果可用于温室中,从经济角度来看,甜菊的种植似乎是合理的。结果还表明,断头在有限的时间内消除了末端优势,并且随着末端分支的增长而重新建立了末端优势,而50 µM氟啶酮对甜叶菊的影响是长期的,并且芽的数量更大。由于甜菊糖是一种昂贵的甜味剂,因此本研究的结果可用于温室中,从经济角度来看,甜菊的种植似乎是合理的。结果还表明,断头在有限的时间内消除了末端优势,并且随着末端分支的增长而重新建立了末端优势,而50 µM氟啶酮对甜叶菊的影响是长期的,芽的数量更大。由于甜菊糖是一种昂贵的甜味剂,因此本研究的结果可用于温室中,从经济角度来看,甜菊的种植似乎是合理的。

更新日期:2020-08-20
down
wechat
bug