Floral Initiation, Organogenesis, and Flowering of Mature Paphiopedilum Clair de Lune ‘Edgard Van Belle’ Award of Merit/American Orchid Society Plants Derived from Divisions

Paphiopedilum Clair de Lune ‘Edgard Van Belle’, an excellent Maudiae-type hybrid that has been propagated by artificial division for a long time. We studied its flower bud initiation, development of floral organs, and flowering habits with a view to providing information for flowering control and ef...

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Main Authors: Jia-Qi Zhang, Yu-Ju Liao, Ying-Chun Chen, Yung-I Lee, Chen Chang
Format: Article
Language:English
Published: American Society for Horticultural Science (ASHS) 2024-03-01
Series:HortScience
Subjects:
Online Access:https://journals.ashs.org/hortsci/view/journals/hortsci/59/4/article-p505.xml
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author Jia-Qi Zhang
Yu-Ju Liao
Ying-Chun Chen
Yung-I Lee
Chen Chang
author_facet Jia-Qi Zhang
Yu-Ju Liao
Ying-Chun Chen
Yung-I Lee
Chen Chang
author_sort Jia-Qi Zhang
collection DOAJ
description Paphiopedilum Clair de Lune ‘Edgard Van Belle’, an excellent Maudiae-type hybrid that has been propagated by artificial division for a long time. We studied its flower bud initiation, development of floral organs, and flowering habits with a view to providing information for flowering control and efficient commercial production. According to our research, the flower bud initiation phase of this cultivar begins in February every year, and 80% of the plants completed sepal primordium differentiation in March, The flower bud differentiation lasts for 6 to 7 months, until flowering in August. Within 1 to 3 months after flower bud differentiation, all tested plants differentiated lateral buds. After 5 to 6 months, the new, aboveground vegetative shoots reached their maximum growth, with an average plant height of 20 cm, five leaves, and a shoot dry weight of more than 3 g. From February to April of the following year, a new cycle of flower development and vegetative growth began. In addition, this cultivar was notably sensitivity to high ambient temperature during the late phase of flower development, with a flower bud drop rate as high as 33.3% under average day/night temperatures of 29.0/26.5 °C.
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spelling doaj.art-29f0f02581694b9bb62e0a70ba88e6862024-03-15T16:03:38ZengAmerican Society for Horticultural Science (ASHS)HortScience2327-98342024-03-01594https://doi.org/10.21273/HORTSCI17622-23Floral Initiation, Organogenesis, and Flowering of Mature Paphiopedilum Clair de Lune ‘Edgard Van Belle’ Award of Merit/American Orchid Society Plants Derived from DivisionsJia-Qi Zhang0Yu-Ju Liao1Ying-Chun Chen2Yung-I Lee3Chen Chang4Department of Horticulture, National Chung Hsing UniversityTaiwan Seed Improvement and Propagation Station, Ministry of AgricultureDepartment of Biology, National Museum of Natural Science, TaiwanDepartment of Life Science, National Taiwan UniversityDepartment of Horticulture, National Chung Hsing UniversityPaphiopedilum Clair de Lune ‘Edgard Van Belle’, an excellent Maudiae-type hybrid that has been propagated by artificial division for a long time. We studied its flower bud initiation, development of floral organs, and flowering habits with a view to providing information for flowering control and efficient commercial production. According to our research, the flower bud initiation phase of this cultivar begins in February every year, and 80% of the plants completed sepal primordium differentiation in March, The flower bud differentiation lasts for 6 to 7 months, until flowering in August. Within 1 to 3 months after flower bud differentiation, all tested plants differentiated lateral buds. After 5 to 6 months, the new, aboveground vegetative shoots reached their maximum growth, with an average plant height of 20 cm, five leaves, and a shoot dry weight of more than 3 g. From February to April of the following year, a new cycle of flower development and vegetative growth began. In addition, this cultivar was notably sensitivity to high ambient temperature during the late phase of flower development, with a flower bud drop rate as high as 33.3% under average day/night temperatures of 29.0/26.5 °C.https://journals.ashs.org/hortsci/view/journals/hortsci/59/4/article-p505.xmlflower bud developmentmorphologyorchid growthpaphiopedilum maudiaetemperaturevenus slipper orchid
spellingShingle Jia-Qi Zhang
Yu-Ju Liao
Ying-Chun Chen
Yung-I Lee
Chen Chang
Floral Initiation, Organogenesis, and Flowering of Mature Paphiopedilum Clair de Lune ‘Edgard Van Belle’ Award of Merit/American Orchid Society Plants Derived from Divisions
HortScience
flower bud development
morphology
orchid growth
paphiopedilum maudiae
temperature
venus slipper orchid
title Floral Initiation, Organogenesis, and Flowering of Mature Paphiopedilum Clair de Lune ‘Edgard Van Belle’ Award of Merit/American Orchid Society Plants Derived from Divisions
title_full Floral Initiation, Organogenesis, and Flowering of Mature Paphiopedilum Clair de Lune ‘Edgard Van Belle’ Award of Merit/American Orchid Society Plants Derived from Divisions
title_fullStr Floral Initiation, Organogenesis, and Flowering of Mature Paphiopedilum Clair de Lune ‘Edgard Van Belle’ Award of Merit/American Orchid Society Plants Derived from Divisions
title_full_unstemmed Floral Initiation, Organogenesis, and Flowering of Mature Paphiopedilum Clair de Lune ‘Edgard Van Belle’ Award of Merit/American Orchid Society Plants Derived from Divisions
title_short Floral Initiation, Organogenesis, and Flowering of Mature Paphiopedilum Clair de Lune ‘Edgard Van Belle’ Award of Merit/American Orchid Society Plants Derived from Divisions
title_sort floral initiation organogenesis and flowering of mature paphiopedilum clair de lune edgard van belle award of merit american orchid society plants derived from divisions
topic flower bud development
morphology
orchid growth
paphiopedilum maudiae
temperature
venus slipper orchid
url https://journals.ashs.org/hortsci/view/journals/hortsci/59/4/article-p505.xml
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