Cultivar screening: assessment of plant growth, morphology, tipburn occurrence, and quality characteristics of six lettuce cultivars grown in a plant factory

2020 ◽  
pp. 935-942
Author(s):  
N. Lu ◽  
D.T.P. Nguyen ◽  
X. Ren ◽  
M. Takagaki
2013 ◽  
Vol 46 (4) ◽  
pp. 323-327 ◽  
Author(s):  
Wei-Tai Chen ◽  
Yu-Hui Flora Yeh ◽  
Ting-Yu Liu ◽  
Ta-Te Lin

2013 ◽  
pp. 493-498
Author(s):  
M. Akakabe ◽  
T. Nishikawa ◽  
R. Masuishi ◽  
H. Narimo ◽  
H. Fukuda ◽  
...  

2013 ◽  
Vol 47 (6) ◽  
pp. 23-32 ◽  
Author(s):  
Chang Sun Choi ◽  
◽  
Jun Gu Lee ◽  
Yoon Ah Jang ◽  
Sang Gyu Lee ◽  
...  

Electronics ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 1661
Author(s):  
Bong-Hyun Kim ◽  
Joon-Ho Cho

This paper is a study on a modular smart plant factory integrating intelligent solar module, LED module with high efficiency for plant growth, IoT module control system and image processing technology. The intelligent sun and modules have a corrugated structure, and the angle of the module can be adjusted to obtain a large amount of power generation. It is fully foldable for wider angles during the day and module protection at night. The LED module is designed and manufactured to distribute energy evenly over the entire wavelength range so that high efficiency can be obtained. The control system with IoT convergence technology enables control of all parts related to plant growth such as angle control of solar modules, LED lighting control, temperature/humidity control, and fan control. In particular, the control method is programmed to be controlled by a computer monitoring system and a smartphone app, so there are few places. In addition, this paper developed an image processing algorithm to extract the growth information of lettuce grown in the plant factory. The acquired images were separated into R, G, and B images using Matlab software. The applied algorithms are k-mean and improved morphological image processing. By applying this method, we can determine the area calculation and shipping of lettuce seedlings. As a result of the fusion and application of solar modules, LED modules, and IoT modules, information on plant growth and status was confirmed.


2017 ◽  
Vol 23 (3) ◽  
pp. 307 ◽  
Author(s):  
Christiane de Fátima Martins França ◽  
Lucas Cavalcante Da Costa ◽  
Wellington Souto Ribeiro ◽  
Teresa Drummond Correia Mendes ◽  
Mirelle Nayana De Sousa Santos ◽  
...  

The effects of three paclobutrazol (PBZ) application methods on ornamental characteristics of two pepper cultivars (‘Biquinho Vermelha’ and ‘Bode Amarela’) were evaluated. Plant growth regulator at 10 μM PBZ was added at transplanting by drenching 250 mL PBZ solution on the pot substrate, foliar spray of 10 mL PBZ solution or by submerging seedlings root + substrate for 10 seconds in the PBZ solution. Control plants were treated with tap water applied directly on the substrate. Plant height, canopy compactness, fruits and leaves number, and leaf chlorophyll content were evaluated when 50% of the plants had approximately 30% of mature fruits (commercial maturity). PBZ applied by drenching influenced positively the ornamental characteristics of ‘Bode Amarela’. Otherwise, the best PBZ application method for ‘Biquinho Vermelha’ was not established. The results suggest that search for suitable PBZ application method that no affects the pepper ornamental characteristics must be done specifically for each pepper cultivar.


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