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CO2 Uptake Behavior and Vegetative Growth of Doritaenopsis Mantefon Orchids as Influenced by Light/Dark Cycle Manipulation
DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | 김기선 | - |
dc.contributor.author | 김효진 | - |
dc.date.accessioned | 2017-10-31T07:53:58Z | - |
dc.date.available | 2017-10-31T07:53:58Z | - |
dc.date.issued | 2017-08 | - |
dc.identifier.other | 000000146310 | - |
dc.identifier.uri | https://hdl.handle.net/10371/137611 | - |
dc.description | 학위논문 (석사)-- 서울대학교 대학원 농업생명과학대학 식물생산과학부, 2017. 8. 김기선. | - |
dc.description.abstract | This study was performed to investigate how changing the period of light and dark influences the vegetation growth and the photosynthesis of Doritaenopsis. Clones of Doritaenopsis Queen Beer Mantefon at 4-month-old stage were grown in a closed-plant factory system with four different light/dark cycles | - |
dc.description.abstract | 06/06 h, 08/08 h, 10/10 h, and 12/12 h. Temperature and relative humidity were set at 28oC and 80%, respectively, with a photosynthetic photon flux density of 160 ± 10 µmol·m-2·s-1. Repetitive measurements showed that the leaf length and the leaf width were the longest under 12/12 h closely followed by 10/10 h. The fresh weight and the dry weight of leaves and roots were the heaviest at 10/10 h treated samples. Different CO2 uptake patterns were observed from different light/dark cycles. Under 10/10 h and 12/12 h treatments, the CO2 uptake started at early dark period. When the light/dark cycles were shortened to 06/06 h and 08/08 h, the CO2 uptake started at the middle of dark period. Total CO2 uptake amounts were the highest under 12/12 h treatment followed by 10/10 h, 06/06 h, and 08/08 h treatments. Quantitative measurements showed that the vegetative growths under 10/10 h treatment were comparable with that of 12/12 h treatment. These studies indicated that manipulating light/dark can modify the photosynthesis patterns and vegetative growth of Doritaenopsis Mantefon, resulting in the reduction of the production period. | - |
dc.description.tableofcontents | INTRODUCTION 1
LITERATURE REVIEW 5 MATERIALS AND METHODS 8 Plant and Growth Conditions 8 Photoperiod and Temperature Treatments 8 Data Collection and Analysis 10 RESULTS AND DISCUSSION 12 Effects of Light/Dark Cycle Manipulation on CO2 Uptake Patterns 12 Effects of Light/Dark Cycle Manipulation on Vegetative Growth 20 LITERATURE CITED 27 ABSTRACT IN KOREAN 32 | - |
dc.format | application/pdf | - |
dc.format.extent | 1206398 bytes | - |
dc.format.medium | application/pdf | - |
dc.language.iso | en | - |
dc.publisher | 서울대학교 대학원 | - |
dc.subject | CAM plants | - |
dc.subject | Circadian rhythms | - |
dc.subject | Orchid | - |
dc.subject | vegetative growth | - |
dc.subject.ddc | 633 | - |
dc.title | CO2 Uptake Behavior and Vegetative Growth of Doritaenopsis Mantefon Orchids as Influenced by Light/Dark Cycle Manipulation | - |
dc.type | Thesis | - |
dc.contributor.AlternativeAuthor | KIM HYO JIN | - |
dc.description.degree | Master | - |
dc.contributor.affiliation | 농업생명과학대학 식물생산과학부 | - |
dc.date.awarded | 2017-08 | - |
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