Hệ thống mới - Kết hợp công nghệ chiếu sáng LED và truyền điện không dây - trong nghiên cứu sinh trưởng cây dâu tây (Fragaria SP.) nuôi cấy In vitro

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Tác giả: Tấn Nhựt Dương, Bá Nam Nguyễn, Đình Lâm Nguyễn, Phúc Huy Nguyễn, Quốc Luận Vũ

Ngôn ngữ: vie

Ký hiệu phân loại: 571.538 *Tissue culture

Thông tin xuất bản: Công nghệ Sinh học, 2014

Mô tả vật lý: 667-677

Bộ sưu tập: Metadata

ID: 505131

Light emitting diodes (LEOs) have been demonstrated to be an ideal lighting source in tissue culture and growth room. In this study, novel LED system, wireless power transfer combined with LEOs was assembled to apply for the study of the growth of strawberry (Fragaria sp) cultured in vitro. The novel LED system consists of two parts. (l) Transmitter device: This device, including a transformer circuit, a rectIfier circuit, an oscillation circuit, an amplifier circuit, and a LC circuit, connected to a power source and converted the input power to an oscillating electromagnetic fields. The transformer circuit converted the input power from 220V (Alternating current - AC) to 60V (AC) and 24V (AC). Then, the rectifier circuit converted the alternating current to direct current with two sources: a 15V power supply for oscillation circuit and an 80Y power supply at high-voltage for LC circuit. The oscillation circuit created oscillation for the LC circuit. The amplifier circuit was responsible for supplying maximum power to the load, as efficiently as possible. The LC resonant circuit was used for obtaining resonance and signal transfer. (2) Receiver device: This device converted electromagnetic waves back to electric power and utilization. The receiver circuit included LC resonant circuit which resonated the electromagnetic signals and the load was made possible by the LED b~ard. The LED arrangement of this board is 4 rows with 20 red LEOs and 3 rows with 9 blue LEOs so that 'the ratio of red LED to blue LED is close to 7:3. The results showed that fresh weight (1.02 g), dry weight (59.75 mg), plant height (6.67 cm), and SPAO value (48.05) of Strawberry under novel LED system were higher than that of plantlets under fluorescent lamp. With further improvement and experiment to be made, it is reasonable to expect that the novel LED system will be the major light system for in vitro plant culture.
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