Synergistic Effect of PPFD and Mycorrhization for Efficient in vitro Propagation of Dendrobium chrysanthum Wall. ex Lindl.

Hajong, Subarna; Kumaria, Suman; Tandon, Pramod

doi:10.20546/ijcmas.2019.810.152

Cited by 2 publications

(2 citation statements)

References 20 publications

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“…Dutra et al [82] also showed that nitrogen does not play an important role in the seed germination of asymbiotic orchids compared to other nutrients, especially those in a Mitra medium [82]. Hajong et al [83] reported that the low response of orchid seeds to nitrogen in the B5 and Nitsch media could be due to the inhibitory effect of nitrogen in the form of ammonium sulfate on seedling growth in B5 media or vitamin mixtures present in both B5 and Nitsch media.…”

Section: Culture Mediamentioning

confidence: 99%

Medicinal Use, Flower Trade, Preservation and Mass Propagation Techniques of Cymbidium Orchids—An Overview

Balilashaki,

Martinez-Montero,

Vahedi

et al. 2023

Horticulturae

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Cymbidium is an economically important genus in the orchid family (Orchidaceae) that has a pronounced medicinal and ornamental value. Medicinally, the plant is employed as a tonic to treat weakness in chronic diseases, dizziness, eye problems, burns, and wounds, etc. Cymbidiums are highly prized for their graceful flowers and sweet fragrance and are among the top ten most popular cut flowers. They are one of the most important commercial orchid groups and account for 3% of cut flowers in floriculture. Some orchid species in this genus are particularly threatened by excessive harvesting, so conservation measures are needed. Several enthusiastic organizations (e.g., The Cymbidiums Society of America, The Cymbidiums Club in Australia, The Golden Gate Cymbidiums Society, Alameda, CA, etc.) are dedicated to propagating, conserving, promoting, appreciating, and disseminating information about these beautiful and charming orchids. Through organogenesis (direct and indirect) and somatic embryogenesis, extensive propagation techniques for Cymbidiums have been developed to create protocols for synthetic seed production leading to large-scale propagation and long-term ex situ and in vitro conservation. This review highlights the medicinal uses, flower trade, conservation, and massive propagation techniques of Cymbidium orchids.

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Section: Culture Mediamentioning

confidence: 99%

Medicinal Use, Flower Trade, Preservation and Mass Propagation Techniques of Cymbidium Orchids—An Overview

Balilashaki,

Martinez-Montero,

Vahedi

et al. 2023

Horticulturae

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“…TDZ successfully induced the in vitro florigens of soybean, Pennisetum glaucum, and contributed to early flowering by shortening the required time at the vegetative growth stage [10,12]. Normally, TDZ addition to Murashige and Skoog Medium (MS media) can stimulate explant in vitro regeneration, resulting in adventitious shoots, callus production and protocorm-like body (PLB) proliferation [9,[13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Flowering Time and Physiological Reaction of Dendrobium nobile Lindl in Response to TDZ Application

Ren

Hu²,

Qian³

et al. 2023

Horticulturae

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The objective of this work was to analyze the effect of Thidiazuron (TDZ) treatment on floral initiation, flowering time, ornamental characteristics and physiological metabolism of potted Dendrobium nobile. Three TDZ concentrations (200, 500 and 1000 mg L−1) were applied as solution to water the root zone of the plants. Control plants (plants watered with water) showed a good vegetative development but no floral branches. TDZ greatly influenced the flowering process. For all the tested TDZ concentrations, the first flower bud occurred at 55–60 days after the last irrigation (DAI), the highest TDZ concentration showing the major delay in its occurrence. The initial flowering (30% of flowered plants) began 47 days after the first flower bud initiation with no statistical differences among the treatments. Plants treated with TDZ 500–1000 mg L−1 showed the longest period of flowering (about 32 days) and the single flowers delayed the withering of about 2–3 days compared to the lowest TDZ treatment (200 mg L−1). The number of flowers, floral branches and flowering percentage were distinctly influenced by the TDZ concentration. The highest percentage of flowering (40%) was scored when plants were watered with a TDZ solution at 500 mg L−1 and this was a performant treatment providing the best morphological flower features for the ornamental value of this plant. Among the physiological factors affecting the flowering, this study showed that TDZ increased the relative membrane permeability which facilitated the transport of macromolecular flower-forming substances into and out of the membrane. Therefore, the membrane permeability change could be an indicator of shifts in physiologically active substances during the flowering transition process in Dendrobium nobile plants.

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Synergistic Effect of PPFD and Mycorrhization for Efficient in vitro Propagation of Dendrobium chrysanthum Wall. ex Lindl.

Cited by 2 publications

References 20 publications

Medicinal Use, Flower Trade, Preservation and Mass Propagation Techniques of Cymbidium Orchids—An Overview

Medicinal Use, Flower Trade, Preservation and Mass Propagation Techniques of Cymbidium Orchids—An Overview

Flowering Time and Physiological Reaction of Dendrobium nobile Lindl in Response to TDZ Application

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