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Research on the Effect of Electrical Signals on Growth of Sansevieria under Light-Emitting Diode (LED) Lighting Environment.

Tian L, Meng Q, Wang L, Dong J, Wu H - PLoS ONE (2015)

Bottom Line: The changes in the plant electrical signal reflected the changes in the intensity of photosynthesis.In this study, we proposed a new method to express plant photosynthetic intensity as a function of the electrical signal.That is, the plant electrical signal can be used to describe the state of plant growth.

View Article: PubMed Central - PubMed

Affiliation: School of Electrical Engineering and Automation, Tianjin University, Tianjin, China; Tianjin Key laboratory of Information Sensing & Intelligent Control, Tianjin University of Technology and Education, Tianjin, China.

ABSTRACT
The plant electrical signal has some features, e.g. weak, low-frequency and time-varying. To detect changes in plant electrical signals, LED light source was used to create a controllable light environment in this study. The electrical signal data were collected from Sansevieria leaves under the different illumination conditions, and the data was analyzed in time domain, frequency domain and time-frequency domain, respectively. These analyses are helpful to explore the relationship between changes in the light environment and electrical signals in Sansevieria leaves. The changes in the plant electrical signal reflected the changes in the intensity of photosynthesis. In this study, we proposed a new method to express plant photosynthetic intensity as a function of the electrical signal. That is, the plant electrical signal can be used to describe the state of plant growth.

No MeSH data available.


Related in: MedlinePlus

The value of peak to peak, mean, variance and mean square with illumination variation in Sansevieria diagram.
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pone.0131838.g003: The value of peak to peak, mean, variance and mean square with illumination variation in Sansevieria diagram.

Mentions: The relationships between the time-domain values and illumination are shown in Figs 3 and 4. As shown in Fig 3a, the peak-to-peak value represents the difference between the maximum peak point and the minimum signal waveform sample point. This value characterizes the changes in the amplitude of the electrical signal in response to changing light intensity. At light intensities ranging from 5% to 40% of full light intensity (3615–21446 Lux), the electrical signals peaked around the same level, approximately 100 μV. There was very little variation in peak amplitude within this range of light intensities, indicating that the intensity of photosynthesis in Sansevieria plants was not affected by changes in the light environment. As the light intensity increased, the peak-to-peak value showed greater variations. It indicated that the electrical signal became more active as photosynthesis increased. At 60% of full light intensity (26803 Lux), the peak-to-peak value started to decrease, it indicated a decrease in photosynthesis intensity. It can be inferred that the most suitable illumination for Sansevieria is around 25000–27000 Lux according to the data.


Research on the Effect of Electrical Signals on Growth of Sansevieria under Light-Emitting Diode (LED) Lighting Environment.

Tian L, Meng Q, Wang L, Dong J, Wu H - PLoS ONE (2015)

The value of peak to peak, mean, variance and mean square with illumination variation in Sansevieria diagram.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4487690&req=5

pone.0131838.g003: The value of peak to peak, mean, variance and mean square with illumination variation in Sansevieria diagram.
Mentions: The relationships between the time-domain values and illumination are shown in Figs 3 and 4. As shown in Fig 3a, the peak-to-peak value represents the difference between the maximum peak point and the minimum signal waveform sample point. This value characterizes the changes in the amplitude of the electrical signal in response to changing light intensity. At light intensities ranging from 5% to 40% of full light intensity (3615–21446 Lux), the electrical signals peaked around the same level, approximately 100 μV. There was very little variation in peak amplitude within this range of light intensities, indicating that the intensity of photosynthesis in Sansevieria plants was not affected by changes in the light environment. As the light intensity increased, the peak-to-peak value showed greater variations. It indicated that the electrical signal became more active as photosynthesis increased. At 60% of full light intensity (26803 Lux), the peak-to-peak value started to decrease, it indicated a decrease in photosynthesis intensity. It can be inferred that the most suitable illumination for Sansevieria is around 25000–27000 Lux according to the data.

Bottom Line: The changes in the plant electrical signal reflected the changes in the intensity of photosynthesis.In this study, we proposed a new method to express plant photosynthetic intensity as a function of the electrical signal.That is, the plant electrical signal can be used to describe the state of plant growth.

View Article: PubMed Central - PubMed

Affiliation: School of Electrical Engineering and Automation, Tianjin University, Tianjin, China; Tianjin Key laboratory of Information Sensing & Intelligent Control, Tianjin University of Technology and Education, Tianjin, China.

ABSTRACT
The plant electrical signal has some features, e.g. weak, low-frequency and time-varying. To detect changes in plant electrical signals, LED light source was used to create a controllable light environment in this study. The electrical signal data were collected from Sansevieria leaves under the different illumination conditions, and the data was analyzed in time domain, frequency domain and time-frequency domain, respectively. These analyses are helpful to explore the relationship between changes in the light environment and electrical signals in Sansevieria leaves. The changes in the plant electrical signal reflected the changes in the intensity of photosynthesis. In this study, we proposed a new method to express plant photosynthetic intensity as a function of the electrical signal. That is, the plant electrical signal can be used to describe the state of plant growth.

No MeSH data available.


Related in: MedlinePlus