Effect of White LED Light on the Growth of Apple Seedlings in Controlled Environment System
Plant growth in a controlled environment system is highly dependent on the availability of light. The light-emitting diode (LED) is capable of providing the needed quality and quantity of light for the plant. The purpose of this study was to determine the effect of white LED light intensity on the g...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-08-01
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| Series: | Horticulturae |
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| Online Access: | https://www.mdpi.com/2311-7524/8/8/692 |
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| author | Ki Young Choi Md. Rayhan Ahmed Shawon Jae Kyung Kim Yeo Joong Yoon Soo Jeong Park Jong Kuk Na |
| author_facet | Ki Young Choi Md. Rayhan Ahmed Shawon Jae Kyung Kim Yeo Joong Yoon Soo Jeong Park Jong Kuk Na |
| author_sort | Ki Young Choi |
| collection | DOAJ |
| description | Plant growth in a controlled environment system is highly dependent on the availability of light. The light-emitting diode (LED) is capable of providing the needed quality and quantity of light for the plant. The purpose of this study was to determine the effect of white LED light intensity on the growth of <i>in vitro</i> propagated apple (M-9) seedlings in a controlled environment system. Seedlings were grown for 30 days under five different white LED light intensities: 100–500 (L1), 250–500 (L2), 500–500 (L3), 250–250 (L4), and 100–100 (L5). Our findings indicate that seedlings treated with L3 grew substantially taller than seedlings treated with L1, L2, or L5. The number of leaves, stem diameter, shoot fresh weight, root fresh weight, and shoot dry weight of L3 treated seedlings were considerably greater than those growing in other treatments. Furthermore, root length, root dry weight, chlorophyll content, and photosynthesis rate were considerably increased in the L3 treatment group compared to the L5 treatment group. However, there was no significant difference in the stomatal conductance or transpiration rate of apple seedlings between the light treatments. Moreover, a positive correlation was seen between stomatal conductance and transpiration rate. These results suggest that light intensity PPFD 500-500 were favorable for the initial growth of <i>in vitro</i> propagated apple seedlings. |
| first_indexed | 2024-03-09T09:56:18Z |
| format | Article |
| id | doaj.art-5ab54b4849ed431abbc573383b86adf0 |
| institution | Directory Open Access Journal |
| issn | 2311-7524 |
| language | English |
| last_indexed | 2024-03-09T09:56:18Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Horticulturae |
| spelling | doaj.art-5ab54b4849ed431abbc573383b86adf02023-12-01T23:45:59ZengMDPI AGHorticulturae2311-75242022-08-018869210.3390/horticulturae8080692Effect of White LED Light on the Growth of Apple Seedlings in Controlled Environment SystemKi Young Choi0Md. Rayhan Ahmed Shawon1Jae Kyung Kim2Yeo Joong Yoon3Soo Jeong Park4Jong Kuk Na5Department of Controlled Agriculture, Division of Future Agriculture Convergence, Kangwon National University, Chuncheon 24341, KoreaDepartment of Controlled Agriculture, Division of Future Agriculture Convergence, Kangwon National University, Chuncheon 24341, KoreaPlan T Farm Co., Ltd., Pyeongtaek 17706, KoreaUNI Plantech Co., Ltd., Kimje 54324, KoreaDepartment of Horticulture, Gyengnam National University of Science and Technology, Jinju 52725, KoreaDepartment of Controlled Agriculture, Division of Future Agriculture Convergence, Kangwon National University, Chuncheon 24341, KoreaPlant growth in a controlled environment system is highly dependent on the availability of light. The light-emitting diode (LED) is capable of providing the needed quality and quantity of light for the plant. The purpose of this study was to determine the effect of white LED light intensity on the growth of <i>in vitro</i> propagated apple (M-9) seedlings in a controlled environment system. Seedlings were grown for 30 days under five different white LED light intensities: 100–500 (L1), 250–500 (L2), 500–500 (L3), 250–250 (L4), and 100–100 (L5). Our findings indicate that seedlings treated with L3 grew substantially taller than seedlings treated with L1, L2, or L5. The number of leaves, stem diameter, shoot fresh weight, root fresh weight, and shoot dry weight of L3 treated seedlings were considerably greater than those growing in other treatments. Furthermore, root length, root dry weight, chlorophyll content, and photosynthesis rate were considerably increased in the L3 treatment group compared to the L5 treatment group. However, there was no significant difference in the stomatal conductance or transpiration rate of apple seedlings between the light treatments. Moreover, a positive correlation was seen between stomatal conductance and transpiration rate. These results suggest that light intensity PPFD 500-500 were favorable for the initial growth of <i>in vitro</i> propagated apple seedlings.https://www.mdpi.com/2311-7524/8/8/692<i>in vitro</i>light intensitynumber of leavesshoot height |
| spellingShingle | Ki Young Choi Md. Rayhan Ahmed Shawon Jae Kyung Kim Yeo Joong Yoon Soo Jeong Park Jong Kuk Na Effect of White LED Light on the Growth of Apple Seedlings in Controlled Environment System Horticulturae <i>in vitro</i> light intensity number of leaves shoot height |
| title | Effect of White LED Light on the Growth of Apple Seedlings in Controlled Environment System |
| title_full | Effect of White LED Light on the Growth of Apple Seedlings in Controlled Environment System |
| title_fullStr | Effect of White LED Light on the Growth of Apple Seedlings in Controlled Environment System |
| title_full_unstemmed | Effect of White LED Light on the Growth of Apple Seedlings in Controlled Environment System |
| title_short | Effect of White LED Light on the Growth of Apple Seedlings in Controlled Environment System |
| title_sort | effect of white led light on the growth of apple seedlings in controlled environment system |
| topic | <i>in vitro</i> light intensity number of leaves shoot height |
| url | https://www.mdpi.com/2311-7524/8/8/692 |
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