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Enhancing Propagation of Orostachys spp. Offsets through Exogenous GA3 Application

Authors :
Jae Hwan Lee
Eun Ji Shin
Sang Yong Nam
Source :
Horticulturae, Vol 9, Iss 12, p 1280 (2023)
Publication Year :
2023
Publisher :
MDPI AG, 2023.

Abstract

Orostachys spp., considered economically important succulent plants for both the medicinal and ornamental plant industries, are known to exhibit slow growth in their offsets during the long, cold winter months. Due to the slow growth, this study investigated the application of gibberellic acid (GA3) and determined the optimal GA3 concentration (control, 200 mg·L−1, 400 mg·L−1, and 600 mg·L−1) for promoting the propagation of three Orostachys species (i.e., O. fimbriata, O. japonica, and O. minuta), as well as its impact on their growth and development. According to our study findings, O. fimbrata and O. minuta influenced by GA3 exhibited higher survival rates (7–38%) and offset growth rates (3–87%) compared to the control. Similarly, its application resulted in significant shoot and root development, along with increased moisture content for the majority of the species. The results of this research demonstrate the potential and practical applications of using GA3 to increase the propagation and growth of Orostachys spp. during cold conditions for year-round propagation of these succulent plants, which could have ecological and horticultural significance for related species as well as other vegetatively propagated crops.

Details

Language :
English
ISSN :
23117524
Volume :
9
Issue :
12
Database :
Directory of Open Access Journals
Journal :
Horticulturae
Publication Type :
Academic Journal
Accession number :
edsdoj.65dc5fe87124e8e8bb84fe04e82292f
Document Type :
article
Full Text :
https://doi.org/10.3390/horticulturae9121280