Results 11 to 20 of about 6,407 (210)

A Machine Learning Approach for the Non-Destructive Estimation of Leaf Area in Medicinal Orchid Dendrobium nobile L.

open access: yesApplied Sciences, 2022
In this study, leaf area prediction models of Dendrobium nobile, were developed through machine learning (ML) techniques including multiple linear regression (MLR), support vector regression (SVR), gradient boosting regression (GBR), and artificial ...
Madhurima Das   +3 more
doaj   +1 more source

Orchid diversity along an altitudinal gradient in the central Balkans

open access: yesFrontiers in Ecology and Evolution, 2022
Understanding patterns of species diversity along an altitudinal gradient is the major topic of much biogeographical and ecological research. The aim of this study was to explore how richness and density of orchid species and subspecies in terms of ...
Vladan Djordjević   +4 more
doaj   +1 more source

Terrestrial and epiphytic orchids exhibit different diversity and distribution patterns along an elevation gradient of Mt. Victoria, Myanmar

open access: yesGlobal Ecology and Conservation, 2023
Orchids have been long fascinating biologists and ecologists because of their remarkable range of life history strategies, floral and vegetative morphology, pollination syndromes, and symbiotic fungi.
Yan-Yu Ai   +8 more
doaj   +1 more source

Geographic Patterns of the Richness and Density of Wild Orchids in Nature Reserves of Jiangxi, China

open access: yesDiversity, 2022
Orchids have attracted much attention from researchers, because of their richness of species and their great ornamental and medicinal value. Jiangxi Province, which is located in southeastern China and ringed on three sides by mountains, contains many ...
Qinghua Zhan   +12 more
doaj   +1 more source

Extracellular Enzyme Activities and Carbon/Nitrogen Utilization in Mycorrhizal Fungi Isolated From Epiphytic and Terrestrial Orchids

open access: yesFrontiers in Microbiology, 2021
Fungi employ extracellular enzymes to initiate the degradation of organic macromolecules into smaller units and to acquire the nutrients for their growth. As such, these enzymes represent important functional components in terrestrial ecosystems.
Zeyu Zhao   +5 more
doaj   +1 more source

Orchid (Orchidaceae) Inventory in Isau-Isau Wildlife Conservation Resort Area IX Lawang Agung Village, South Sumatra

open access: yesJurnal Biodjati, 2022
Orchidaceae is one of the plant families which occupies 7-10% of the total flowering plants in the world. Of the 25,000 species of orchids in the world, 6,000 species are found in various forests in Indonesia, including Sumatra.
Felia Melinda. H   +2 more
doaj   +1 more source

DNA barcoding of medicinal orchids in Asia

open access: yesScientific Reports, 2021
Growing popularity of herbal medicine has increased the demand of medicinal orchids in the global markets leading to their overharvesting from natural habitats for illegal trade.
Bhakta Bahadur Raskoti, Rita Ale
doaj   +1 more source

Orchid Pollination Biology

open access: yesEDIS, 2015
Orchids and their pollinators have developed fascinating co-adaptations that promote orchid pollination. This 6-page fact sheet details the various and often strange ways that orchids attract pollinators.
Haleigh Ray, Wagner Vendrame
doaj   +5 more sources

Monitoring of Cypripedium calceolus (Orchidaceae) in the Adamello-Brenta Natural Park (Italy)

open access: yesNature Conservation Research: Заповедная наука, 2020
The study reports data from a long-term monitoring (2007–2020) of a Cypripedium calceolus population (Orchidaceae) in the Adamello-Brenta Natural Park (Trentino, North Italy).
Giorgio Perazza, Michela Decarli
doaj   +1 more source

Inventarisasi Jenis-Jenis Anggrek di Kawasan Banyak Angkrem dan Kedung Kopong, Kecamatan Salaman, Kabupaten Magelang, Jawa Tengah

open access: yesBiotropic: The Journal of Tropical Biology, 2021
Banyak Angkrem and Kedung Kopong are medium lowland tropical rain forest areas where many types of orchids can be found. This study aims to determine the types and diversity of orchids found in the area of ​​Banyak Angkrem and Kedung Kopong.
Bela Prapitasari   +5 more
doaj   +1 more source

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