STUDY ON THE EFFECTS OF LED LIGHT ON GROWTH  AND DEVELOPMENT OF Cymbidium sp.

Đỗ Thị Gấm; Phan Thị Lan Anh

doi:10.34238/tnu-jst.12271

STUDY ON THE EFFECTS OF LED LIGHT ON GROWTH AND DEVELOPMENT OF Cymbidium sp.

About this article

Received: 11/03/25 Revised: 17/07/25 Published: 17/07/25

Authors

1. Do Thi Gam , Center for High Technology Research and Development - VAST
2. Phan Thi Lan Anh, Center for High Technology Research and Development - VAST

Abstract

LED (Light Emitting Diode) has been used as an artificial light source in tissue propagation of numerous plants due to its outstanding advantages compared to the fluorescent lamp. This study aimed to evaluate the effects of LED light on the in vitro development of Cymbidium sp. In particular, the study evaluated the effects of LED light on Cymbidium sp.’s PLBs regeneration and propagation. The results showed that LED lights directly improved the efficiency of micro-propagation of Cymbidium sp. through enhancing the development of PLBs and improving the shoot induction from PLBs ratios. Blue light (450 nm) increased the development of PLBs with a growth rate up to 69.03 ± 0.77%. On the other hand, combination blue LED (450 nm) and red LED (660 nm) at the ratio 7:3 reduced the shoot regeneration period to 12 days together with the increasing in number of shoot/PLBs index and enhancing shoot development and in vitro rooting. Our results provided evidence for LED light design applied in in vitro propagation of not only Cymbidium sp. but also other high commercial value orchid species.

Keywords

Cymbidium; Blue LED; Red LED; Multi-wavelength LEDs; in vitro propagation

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DOI: https://doi.org/10.34238/tnu-jst.12271

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