Welcome to visit Scientia Silvae Sinicae,Today is

Scientia Silvae Sinicae ›› 2023, Vol. 59 ›› Issue (5): 53-60.doi: 10.11707/j.1001-7488.LYKX20210977

Previous Articles     Next Articles

Effects of Exogenous Methyl Jasmonate on Volatile Components and Content of Paeonia suffruticosa ‘Luoyanghong’ in Greenhouse

Tongfei Niu1(),Xian Xue1,Lili Guo1,Min Yu2,Chenjie Zhang1,Xinao Xu1,Ruiya Li1,Xiaogai Hou1,*()   

  1. 1. College of Agriculture, Henan University of Science and Technology  Luoyang 471023
    2. Luoyang Polytechnic Luoyang 471000
  • Received:2021-12-30 Online:2023-05-25 Published:2023-08-02
  • Contact: Xiaogai Hou E-mail:ntf960614@163.com;hxg382@126.com

Abstract:

Objective: Paeonia suffruticosa ‘Luoyanghong’ is one of common varieties with flower forcing, however the flower fragrance is too strong, and can make people feel uncomfortable when it is placed indoors. The aim of this study is to explore effects of exogenous methyl jasmonate on the volatile components and content and to obtain a method to improve the aroma components of P. suffruticosa ‘Luoyanghong’ in greenhouse, so as to provide a reference for improving the economic benefits of peony. Method: The whole plant of P. suffruticosa ‘Luoyanghong’ grown in greenhouse was sprayed with methyl jasmonate solutions (50, 100, 200, 300, 400 μmol?L?1). The dynamic headspace adsorption method in combination with gas chromatography-mass spectrometry technology was adopted to detect the volatile components and content of flowers at different flowering stages. Result: 1) A total of 26 volatile compounds were detected in P. suffruticosa ‘Luoyanghong’ in greenhouse at different flowering stages. There were 23 compounds in the plants without methyl jasmonate treatment and 25 compounds in the plants sprayed with methyl jasmonate solution. These volatile compounds could be divided into six categories: alcohols, esters, aldehydes, terpenes, benzene rings and hydrocarbons, among them the total release amount of hydrocarbons and benzene rings was relatively high. After being sprayed with methyl jasmonate, the content of the six compounds showed different trends at different flowering stages. 2) The analysis of aroma compounds found that the three compounds, 1,4-dimethoxybenzene, 2,4-di-tert-butylphenol and methyl jasmonate, showed relatively high levels in most samples, which could be regarded as the main aroma component of P. suffruticosa ‘Luoyanghong’ in greenhouse. 3) After being sprayed with methyl jasmonate solution, the content of 1,4-dimethoxybenzene decreased, while the content of 2,4-di-tert-butylphenol and methyl jasmonate increased. The best concentration for methyl jasmonate solution was 100 μmol?L?1. Conclusion: Application of 100 μmol?L?1 methyl jasmonate solution can change the aroma components and content of the P. suffruticosa ‘Luoyanghong’ in greenhouse, so as to solve the uncomfortable feel problem of P. suffruticosa ‘Luoyanghong’ because of its strong fragrance when it is placed indoors.

Key words: exogenous methyl jasmonate, Paeonia suffruticosa ‘Luoyanghong’ in greenhouse, volatile components

CLC Number: