Critical Photoperiod and Optimal Quality of Night Interruption Light for Runner Induction in June-Bearing Strawberries
The optimal photoperiod and light quality for runner induction in strawberries ‘Sulhyang’ and ‘Maehyang’ were investigated. Two experiments were carried out in a semi-closed walk-in growth chamber with 25/15 °C day/night temperatures and a light intensity of 250 μmol·m<sup>–2</sup>·s<...
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MDPI AG
2021-10-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/11/10/1996 |
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| author | Yali Li Jie Xiao Jiangtao Hu Byoung Ryong Jeong |
| author_facet | Yali Li Jie Xiao Jiangtao Hu Byoung Ryong Jeong |
| author_sort | Yali Li |
| collection | DOAJ |
| description | The optimal photoperiod and light quality for runner induction in strawberries ‘Sulhyang’ and ‘Maehyang’ were investigated. Two experiments were carried out in a semi-closed walk-in growth chamber with 25/15 °C day/night temperatures and a light intensity of 250 μmol·m<sup>–2</sup>·s<sup>–1</sup>photosynthetic photon flux density (PPFD) provided from white light-emitting diodes (LEDs). In the first experiment, plants were treated with a photoperiod of either 12, 14, 16, 18, 20, or 22 h In the second experiment, a total of 4 h of night interruption (NI) light at an intensity of 70 μmol·m<sup>–2</sup>·s<sup>–1</sup>PPFD provided from either red, blue, green, white, or far-red LED in addition to 11 h short day (SD). The results showed that both ‘Sulhyang’ and ‘Maehyang’ produced runners when a photoperiod was longer than 16 h, and the number of runners induced positively correlated with the length of photoperiod. However, the plant growth, contents of chlorophyll, sugar and starch, and Fv/Fo decreased in a 22 h photoperiod. All qualities of the NI light, especially red light, significantly increased the number of runners and daughter plants induced per plant as compared with those in the SD treatment in both cultivars. In a conclusion, a photoperiod between 16 and 20 h and NI light, especially red NI light, can be used for quality runner induction in both ‘Sulhyang’ and ‘Maehyang’. |
| first_indexed | 2024-03-10T06:47:35Z |
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| id | doaj.art-b3480b6286cd4a0aa0961a8ff6f89b77 |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-10T06:47:35Z |
| publishDate | 2021-10-01 |
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| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-b3480b6286cd4a0aa0961a8ff6f89b772023-11-22T17:06:36ZengMDPI AGAgronomy2073-43952021-10-011110199610.3390/agronomy11101996Critical Photoperiod and Optimal Quality of Night Interruption Light for Runner Induction in June-Bearing StrawberriesYali Li0Jie Xiao1Jiangtao Hu2Byoung Ryong Jeong3Department of Horticulture, Division of Applied Life Science (BK21 Four), Graduate School of Gyeongsang National University, Jinju 52828, KoreaDepartment of Horticulture, Division of Applied Life Science (BK21 Four), Graduate School of Gyeongsang National University, Jinju 52828, KoreaDepartment of Horticulture, Division of Applied Life Science (BK21 Four), Graduate School of Gyeongsang National University, Jinju 52828, KoreaDepartment of Horticulture, Division of Applied Life Science (BK21 Four), Graduate School of Gyeongsang National University, Jinju 52828, KoreaThe optimal photoperiod and light quality for runner induction in strawberries ‘Sulhyang’ and ‘Maehyang’ were investigated. Two experiments were carried out in a semi-closed walk-in growth chamber with 25/15 °C day/night temperatures and a light intensity of 250 μmol·m<sup>–2</sup>·s<sup>–1</sup>photosynthetic photon flux density (PPFD) provided from white light-emitting diodes (LEDs). In the first experiment, plants were treated with a photoperiod of either 12, 14, 16, 18, 20, or 22 h In the second experiment, a total of 4 h of night interruption (NI) light at an intensity of 70 μmol·m<sup>–2</sup>·s<sup>–1</sup>PPFD provided from either red, blue, green, white, or far-red LED in addition to 11 h short day (SD). The results showed that both ‘Sulhyang’ and ‘Maehyang’ produced runners when a photoperiod was longer than 16 h, and the number of runners induced positively correlated with the length of photoperiod. However, the plant growth, contents of chlorophyll, sugar and starch, and Fv/Fo decreased in a 22 h photoperiod. All qualities of the NI light, especially red light, significantly increased the number of runners and daughter plants induced per plant as compared with those in the SD treatment in both cultivars. In a conclusion, a photoperiod between 16 and 20 h and NI light, especially red NI light, can be used for quality runner induction in both ‘Sulhyang’ and ‘Maehyang’.https://www.mdpi.com/2073-4395/11/10/1996day lengthnight interruption lightpropagation |
| spellingShingle | Yali Li Jie Xiao Jiangtao Hu Byoung Ryong Jeong Critical Photoperiod and Optimal Quality of Night Interruption Light for Runner Induction in June-Bearing Strawberries Agronomy day length night interruption light propagation |
| title | Critical Photoperiod and Optimal Quality of Night Interruption Light for Runner Induction in June-Bearing Strawberries |
| title_full | Critical Photoperiod and Optimal Quality of Night Interruption Light for Runner Induction in June-Bearing Strawberries |
| title_fullStr | Critical Photoperiod and Optimal Quality of Night Interruption Light for Runner Induction in June-Bearing Strawberries |
| title_full_unstemmed | Critical Photoperiod and Optimal Quality of Night Interruption Light for Runner Induction in June-Bearing Strawberries |
| title_short | Critical Photoperiod and Optimal Quality of Night Interruption Light for Runner Induction in June-Bearing Strawberries |
| title_sort | critical photoperiod and optimal quality of night interruption light for runner induction in june bearing strawberries |
| topic | day length night interruption light propagation |
| url | https://www.mdpi.com/2073-4395/11/10/1996 |
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