Journal articles: 'Eucalyptus deglupta'

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Salim, Mohammad Agus Salim, Luluk Setyaningsih, Imam Wahyudi, and Sri Wilarso Budi. "Response of Eucalyptus pellita and Eucalyptus deglupta seedling growth to aluminum exposure." Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) 12, no. 2 (June 21, 2022): 246–58. http://dx.doi.org/10.29244/jpsl.12.2.246-258.

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Aluminum (Al) is one of the problems and is a factor inhibiting plant growth on soils with acidic pH. This study aims to examine the growth response of Eucalyptus pellita and Eucalypus Deglupta seedlings to Al exposure. This study used a completely randomized design (CRD) with one factor, where the Al concentration consisted of 5 levels, namely: 0 mM (control), 2 mM, 4 mM, 6 mM, and 8 mM with 3 repetitions each and each repetition consisted of 3 units of the plant. The results showed that Al treatment had a significant effect on the growth parameters of both plant types, except for the root dry weight parameter for E. deglupta. Increasing the Al concentration can reduce almost all growth parameters. The 4 mM Al concentration was able to increase the height growth, plant dry weight (roots and shoots), and tolerance index for the E. pellita species, while the Al 2 mM concentration was able to increase the root growth of E. deglupta plants. Almost all growth parameters for E. pellita species were higher than that of E. deglupta, except for the SPAD chlorophyll index. The concentrations of 6 mM and 8 mM were toxic to E. pellita and E. deglupta.

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Fensham, Roderick. "Rumphius and." Historical Records of Australian Science 33, no. 1 (January 21, 2022): 23–27. http://dx.doi.org/10.1071/hr21009.

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In 1743, Georg Rumphius described a tree from the island of Seram in Herbarium Amboinense as Arbor Versicolor (now known as Eucalyptus deglupta Blume). Thus, the first European name for a species in the iconic Australian genus of Eucalyptus was coined decades before the British collected specimens in Australia, and before it was given its current name by a French botanist in 1789. The English translation of Rumphius’ description (see Supplementary Material) also includes vernacular names for Eucalyptus deglupta—some of many names applied to this species as it occurs from New Britain to Mindanao in the Philippines. While neither Rumphius’ name nor vernacular names for E. deglupta are recognised in current Western botanical nomenclature, the naming of Eucalyptus and other genera now recognised as Acacia, Casuarina and Melaleuca confirm the role of the eminent naturalist Rumphius in the history of Australian botany.

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Chey, V. K., J. D. Holloway, C. Hambler, and M. R. Speight. "Canopy knockdown of arthropods in exotic plantations and natural forest in Sabah, north-east Borneo, using insecticidal mist-blowing." Bulletin of Entomological Research 88, no. 1 (February 1998): 15–24. http://dx.doi.org/10.1017/s0007485300041511.

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AbstractCanopy knockdown of arthropods using mist-blowing was carried out in Brumas, Sabah (north-east Borneo), in plantations of exotic (non-indigenous) tree species (Acacia mangium, Eucalyptus deglupta, Gmelina arborea, Paraserianthes [=Albizia] falcataria, and Pinus caribaea), plus secondary natural forest and dense understorey within E. deglupta stands. Each habitat had three 1 m2 samples taken four times in one year. The average arthropod species richness within the stands of the exotic tree species ranged from 27 in E. deglupta, to 68 in natural, secondary forest. The total number of individuals caught ranged from 137 in G. arborea to 1628 in secondary forest. The dense and plant-species rich understorey within E. deglupta stands yielded both higher numbers of species and individuals than the eucalypt trees themselves, indicating the importance of allowing the development of a luxuriant understorey for the enhancement of conservation and biodiversity. Though arthropod biodiversity is reduced by the conversion of tropical forests to plantations, abundance and richness are still substantial in the latter habitats.

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Chey, V. K., J. D. Holloway, and M. R. Speight. "Diversity of moths in forest plantations and natural forests in Sabah." Bulletin of Entomological Research 87, no. 4 (August 1997): 371–85. http://dx.doi.org/10.1017/s000748530003738x.

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AbstractThe diversity of macromoths in the various fast-growing exotic tree plantations and natural secondary forest in Brumas, Sabah, Malaysia was assessed by means of an annual cycle of light-trap samples. The moth diversity in the forest plantations, viz. Acacia mangium, Gmelina arborea, Paraserianthes (=Albizia) falcataria, Pinus caribaea, and in particular Eucalyptus deglupta, was unexpectedly high. Eucalyptus deglupta showed moth diversity as high as that in the natural secondary forest, a finding attributed to the fact that the E. deglupta plantation had a very diverse understorey both in terms of plant species (secondary regrowth species) and architecture, and thus supported a more diverse moth fauna. Subsidiary samples showed that primary natural forest in the neighbouring Danum Valley does not show higher moth diversity compared to the disturbed forest habitats in Brumas, though moth diversity at Danum is lower than that recorded in other Bornean primary forests. The value of plantation forests for conservation of invertebrate diversity is discussed, together with the implications for plantation management strategy.

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Frazão, Francisco Juvenal Lima. "Características da madeira e da polpa kraft não branqueada de Eucalyptus deglupta Blume introduzido na região de Manaus - AM." Acta Amazonica 18, no. 1-2 (June 1988): 109–16. http://dx.doi.org/10.1590/1809-43921988182117.

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O objetivo deste trabalho foi comparar as características da madeira e das propriedades da polpa de E. deglupta Bl., tendo como referência o E. saligna. As características dimensionais das fibras e dos elementos de vasos da madeira em estudo apresentaram valores superiores aos da madeira de comparação. A constituição química da madeira de E. deglupta demonstrou menores valores para as solubilidades e elementos fundamentais. O E. deglupta se caracterizou por apresentar menor densidade básica e maior consumo de madeira por unidade de peso de celulose produzida. Foram obtidas polpas kraft das duas espécies e os melhores valores pana resistência à tração, alongamento, arrebentamento e rasgo foram mostrados, inicialmente, pela polpa de E. deglupta. Entretanto, para dobras duplas, resistência à passagem de ar e densidade aparente, o E.degluptaapresentou resultados sempre inferiores aos do E. saligna.

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Frazão, Francisco Juvenal Lima. "Características da madeira e da polpa kraft não branqueada de Eucalyptus deglupta Blume introduzido na região de Manaus - AM." Acta Amazonica 17 (1987): 563–80. http://dx.doi.org/10.1590/1809-43921987171570.

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O objetivo deste trabalho foi comparar as características da madeira e das, propriedades da polpa de E. deglupta Bl., tendo como referência o E. saligna. As características dimensionais das fibras e dos elementos de vasos da madeira em estudo apresentaram valores superiores aos da madeira de comparação. A constituição química da madeira de E. deglupta demonstrou menores valores para as solubilidades e elementos fundamen tais. O E. deglupta se caracterizou por apresentar menor densidade básica e maior consumo de madeira por unidade de peso de celulose produzida. Foram obtidas polpas kraft das duas espécies e os melhores valores para resistência à tração, alongamento, arreben tamento e rasgo foram mostrados, Inicialmente, pela polpa de E. deglupta. Entretanto, para dobras duplas, resistência à passagem de ar e densidade aparente,o E.deglupta apre sentou resultados sempre inferiores aos do E. saligna.

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Wang, Wei, Ziling Mao, Chunyin Wu, Hamza Shahid, Shengkun Wang, and Tijiang Shan. "Diversity and Antibacterial and Antioxidant Activities of Fungal Endophytes from the Roots of Eucalyptus deglupta." Sains Malaysiana 51, no. 6 (June 30, 2022): 1687–96. http://dx.doi.org/10.17576/jsm-2022-5106-07.

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In this study, 45 endophytic fungal strains were isolated from the roots of Eucalyptus deglupta. Among them, 16 distinct strains were identified and classified into 14 different genera (Celoporthe, Aspergillus, Castanediella, Chaetomium, Biscogniauxia, Sordariales, Pestalotiopsis, Clitopilus, Cylindrocladiella, Calonectria, Trichoderma, Xylaria, Neofusicoccum and Pleosporales) according to their morphological characteristics and molecular information. The genera Aspergillus and Calonectria were the dominant endophytic fungi in the roots of E. deglupta. In addition, the antibacterial and antioxidant activities of the 16 endophytic fungi isolated from the roots of E. deglupta were evaluated. All the strains displayed inhibitory activities against Agrobacterium tumefaciens, Bacillus subtilis, Escherichia coli, and Xanthomonas vesicatoria. Strains Edf-1 to Edf-4, Edf-11 and Edf-12 demonstrated strong inhibitory activity against R. solanacearum with plaque diameters between 5 and 10 mm. The crude extract of Edf-14 had inhibitory activity against all tested bacteria. Five strains, Edf-1 to Edf-5, demonstrated a strong scavenging capacity for 2,2-diphenyl-1-picrylhydrazyl (DPPH), with IC50 values of 0.26 ± 0.04, 0.11 ± 0.03, 0.20 ± 0.05, 0.10 ± 0.04 and 0.14 ± 0.02 mg/mL, respectively. Hence, endophytic fungi isolated from the roots of E. deglupta showed antibacterial and antioxidant activities, providing a theoretical foundation for further isolation and identification of specific active components.

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Sale, MM, BM Potts, AK West, and JB Reid. "Relationships within Eucalyptus using chloroplast DNA." Australian Systematic Botany 6, no. 2 (1993): 127. http://dx.doi.org/10.1071/sb9930127.

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The potential use of restriction fragment length polymorphisms (RFLPs) of chloroplast DNA to determine relationships at higher taxonomic levels in the genus Eucalptus was examined. Chloroplast DNA from 24 species, encompassing representatives of all the subgenera of Eucalyptus as well as one representative of the genus Angophora, was analysed using four 6-base restriction endonucleases. Eighty-four polymorphisms were obtained (twenty-eight autopomorphic) and the data matrix analysed using both cladistic and phenetic approaches. Results provided relatively good congruence with taxonomic perceptions based on morphological traits. Eucalyptus subgenera Blakella and Corymbia appear to be genetically similar to each other and to Angophora, although their phylogenetic relationships are not resolved in this study. Using Angophora alone, or together with the bloodwoods Blakella and Corynthia, as the outgroup for cladistic analysis, the two representatives of Eudesmia examined form a distinctly separate monophyletic group, which appears to be the sister taxon to Idiogenes, Gaubaen, Monocalyptus and Symphyomyrtus. The results provide some support for the close association of Idiogenes, Gauhaea and Monocalyptus and the hypothesis that they are the sister group of Symphyomyrtus. Taxonomically problematic species Eucalyptus guilfoylei, E. microcorys and E. deglupta were included in the study and it was found that E. guilfoylei appeared to diverge prior to the rest of the Symphyomyrtus, E. microcorys near the root of this clade, while the Telocalyptus representative E. deglupta fell within Symplgvontyrtus. The results obtained from the chloroplast DNA data provided independent support for previous morphological studies while generating new hypotheses and highlighting areas requiring closer examination.

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Arguedas-Gamboa, Marcela, and Jaume Cots-Ibiza. "La “antracnosis” (Colletotrichum spp.) en viveros forestales." Revista Forestal Mesoamericana Kurú 9, no. 22 (September 9, 2012): 60. http://dx.doi.org/10.18845/rfmk.v9i22.364.

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Se describen las características de la enfermedad denominada “antracnosis” (Colletotrichum spp.), como hospederos, síntomas, ciclo de vida y manejo, con énfasis en viveros forestales. En Costa Rica se ha reportado en plántulas de las especies Acacia mangium, Araucaria sp., Astronium graveolens, Dypterix panamensis, Ceiba pentandra, Dalbergia retusa, Eryobotria japonica, Erythrina poeppigiana, Eucalyptus cinerea, Eucalyptus deglupta, Gliricidia sepium, Hymenaea courbaril, Inga edulis, Samanea saman, Terminalia catappa, Trichilia havanensis y Vochysia guatemalensis.

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Sukumaran, R., B. L. Chua, and N. Ismail. "Hybrid drying of ultrasound assisted osmotic dehydration (UOAD) and hot air drying of Eucalyptus deglupta." Journal of Physics: Conference Series 2120, no. 1 (December 1, 2021): 012003. http://dx.doi.org/10.1088/1742-6596/2120/1/012003.

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Abstract Eucalyptus deglupta is one of the promising medicinal plants from Mytracea family consisting of bioactive compounds that are to be used in medications. The bioactive compounds present in Eucalyptus deglupta were extracted at the best yield using a hybrid drying method consisting of ultrasound assisted osmotic dehydration (UOAD) and hot air drying in this study. The drying conditions of UAOD were optimised with response surface methodology (RSM) to attain the highest antioxidant activity via of DPPH radical scavenging assay. Four parameters were optimised with response surface methodology, namely concentration of sucrose (v/w), temperature (°C), duration of drying and intensity of ultrasound (%) ranged from 30% to 50%, 20°C to 60°C, 40 min to 100 min and 60% to 100%, respectively. A series of 27 combinations of the UAOD drying conditions were performed and followed by hot air drying performed at 60°C until a constant weight was achieved. A moderate scavenging activity of DPPH assay (56.12%) was achieved at a concentration of sucrose, temperature, duration of drying and intensity of ultrasound of 50%, 40°C, 100 min and 264 W, respectively.

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Naharuddin, Naharuddin. "Tingkat Erosi pada Plot Model Arsitektur Pohon Attims (Eucalyptus deglupta), Corner (Arenga pinnata), dan Rauh (Arthocarpus teysmanii)." Jurnal Ilmu Kehutanan 15, no. 1 (March 31, 2021): 28–41. http://dx.doi.org/10.22146/jik.v15i1.1510.

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Tree architecture models and the composition of vegetation types affected surface runoff and erosion rates due to vegetation density and various other morphological and ecological characteristic components. This research purpose was to measure and compare the level of erosion in 3 tree architectural models. The research used the path plots method. The sample pathway was made by cut off contour lines. To measure the erosion rate that occured at the tree architecture model, erosion measuring plots were used in three tree architecture models, namely Attims (Eucalyptus deglupta), Corner (Arenga pinnata), and Rauh (Arthocarpus teysmanii). The results showed that the dominant tree architecture model was the Rauh, Attims, and Corner models. The erosion level which occurred in the three tree architectural models showed that the Attims Eucalyptus deglupta model and Corner Arenga pinnata models were more effective in controlling erosion by 233.55 g/ha/year and 293.10 g/ha/year with rainfall of 493.55 mm compared to Rauh Arthocarpus teysmanii type. The correlation analysis between rainfall and the erosion rate at the three tree architecture models were 80% (very strong) for Attims model, 89% (very strong) for Corner model and 90% (very strong) for Rauh model. To control the erosion the Attims and Corner models are highly recommended as alternatives for rehabilitating the critical land.

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Molino, Ralph John Emerson J., Klidel Fae B. Rellin, Ricky B. Nellas, and Hiyas A. Junio. "Sustainable Hues: Exploring the Molecular Palette of Biowaste Dyes through LC-MS Metabolomics." Molecules 26, no. 21 (November 2, 2021): 6645. http://dx.doi.org/10.3390/molecules26216645.

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Underutilized biowaste materials are investigated for their potential as sustainable textile colorants through an approach based on mass spectrometry, bioinformatics, and chemometrics. In this study, colorful decoctions were prepared from the outer bark of Eucalyptus deglupta and fruit peels of Syzygium samarangense, Syzygium malaccense, Diospyros discolor, and Dillenia philippinensis. Textile dyeing was performed along with liquid chromatography–mass spectrometry (LC–MS)-based untargeted metabolomics to determine the small molecules responsible for the observed colors. Global Natural Products Social Molecular Networking (GNPS) guided the annotation of black-producing proanthocyanidins in D. philippinensis and E. deglupta through complexation with FeSO4 mordant. Flavonoids from the yellow-colored D. philippinensis extracts were found to be similar to those in Terminalia catappa, a known traditional dye source. A higher intensity of epicatechin in E. deglupta produced a red-brown color in the presence of Cu2+. Furthermore, Syzygium fruit peels have poor wash-fastness in cotton fibers, but bioactive chalcone unique to S. samarangense samples may be a potential nutritional food colorant. Unsupervised PCA and supervised OPLS-DA chemometrics distinguished chemical features that affect dyeing properties beyond the observed color. These findings, along with growing data on natural dyes, could guide future research on sustainable colorants.

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Millang, Alwi. "EKSPLORASI Actinomycetes SEBAGAI KANDIDAT ANTIBAKTERI PATOGEN YANG RESISTEN DARI RHIZOSFER TUMBUHAN LEDA (Eucalyptus deglupta Blume.) DI TAMAN NASIONAL LORE LINDU, INDONESIA." Biocelebes 14, no. 3 (December 31, 2020): 253–67. http://dx.doi.org/10.22487/bioceb.v14i3.15310.

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Actinomycetes that live in the rhizosphere of the Leda plant (Eucalyptus deglupta Blume.) Have the potential to produce pathogenic antibacterial compounds in humans. The ecosystems thought to be inhabited by Actinomycetes that produce pathogenic antibacterial compounds in humans is the rhizosphere of Leda endemic plant in the Lore Lindu National Park, Central Sulawesi. The purpose of this study was to isolate various isolates of Leda plant rhizosphere Actinomycetes in TNLL as a producer of pathogenic antibacterial compounds in humans. This research is divided into several stages. The first stage was sampling, isolation, and screening of Actinomycetes producing human pathogenic antibacterial compounds. Rhizosphere soil samples were taken by purposive sampling method combined with the quadrant method by measuring various environmental factors. The second stage is a selection to analyze the potential and efficacy of Actinomycetes isolates as producing antibacterial compounds against pathogenic bacteria in humans. The results showed that the condition of Leda plant vegetation in the Anaso-Rorekatimbu area was generally the same for each spot and supported the presence of Actinomycetes. The density of Actinomycetes is relatively the same for each spot. As many as 15 isolates were isolated from the Leda rhizosphere of Actinomycetes. Based on spore morphological and biochemical characterization, the 15 isolates were included in the Genus Streptomyces. Actinomycetes isolates L213, L433, and L411 were the most potent isolates and had broad-spectrum inhibition, because they were able to inhibit the four test bacteria S. aureus, MRSA, V. cholera, and EPEC. Keywords: Actinomycetes, Eucalyptus deglupta Blume., and pathogenic antibacterial

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Boland, DJ, and M. Sedgley. "Stigma and Style Morphology in Relation to Taxonomy and Breeding Systems in Eucalyptus and Angophora (Myrtaceae)." Australian Journal of Botany 34, no. 5 (1986): 569. http://dx.doi.org/10.1071/bt9860569.

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The stigma and style of 94 species of Eucalyptus and two species of Angophora were studied by scanning electron microscopy and/or light microscopy. All species had papillate stigmas and a stylar canal of varying length. Angophora species had mop-like stigmas with long papillae that were very similar in appearance to those of the red bloodwood group of the Corymbia, e.g. E. gummifera. The spotted gum group of the Corymbia had mop-like stigmas with short papillae and the yellow bloodwoods had tapered stigmas. The latter group was also charaderised by an extremely thick cuticle on the outer surface of the style, over 100 �m in thickness in E. watsoniana. All species in Blakella had tapered stigmas with a lobed surface and relatively few short papillae. The stylar canal had no cuticle in E. papuana. Eudesmia is a variable subgenus with E. erythrocorys unusual in having long multicellular papillae. Most Symphyomyrtus species had blunt or pinhead-shaped lobed stigmas with a heavily cutinised stylar canal. E. deglupta and E. microcorys did not conform to this pattern and had mop-shaped stigmas with long papillae. Monocalyptus species had blunt stigmas with few papillae and hollow styles and appeared to form a cohesive group. On the basis of stigma and style morphology Angophora is more similar to Corymbia than to Blakella. E. deglupta and E. microcorys are distinct from other Symphyomyrtus species studied. E. trachyphloia and E. jacobsiana are more similar to E. gummifera than to E. watsoniana or other yellow bloodwoods.

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Schaller, Michaela, Götz Schroth, John Beer, and Francisco Jiménez. "Root interactions between young Eucalyptus deglupta trees and competitive grass species in contour strips." Forest Ecology and Management 179, no. 1-3 (July 2003): 429–40. http://dx.doi.org/10.1016/s0378-1127(02)00534-0.

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Brune, Arno. "Eucalypts for Tropical Rainforest (Af) climate." Silvae Genetica 70, no. 1 (January 1, 2021): 170–83. http://dx.doi.org/10.2478/sg-2021-0014.

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Abstract The equatorial region of the world includes areas of Tropical Rainforest (Af) and Tropical Monsoon (Am) climate zones, which are distinguished by high temperatures and high rainfall, but soils which are often deficient. Potential productivity of plantation forestry in this area is high, and so are the pest and disease dangers which threaten it. This paper describes the Eucalyptus and Corymbia species which are adapted to this situation and also resistant to the main diseases like leaf blights. Based on the highly adapted E. biterranea and E. deglupta and several more, hybridization combined with vegetative propagation is discussed as an excellent alternative to obtain quick gains in short rotations while maintaining wide genetic diversity in such plantations. Management remedies are given for the possible backlash of quick soil depletion.

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Setianingsih, Sari, Rudi Kartika, and Partomuan Simanjuntak. "Isolasi Senyawa Kimia Stigmastan-3,5-Diena Yang Mempunyai Daya Toksik Dari Daun Ekaliptus (Eucalyptus Deglupta Blume.)." JURNAL KIMIA MULAWARMAN 15, no. 1 (November 29, 2017): 1. http://dx.doi.org/10.30872/jkm.v15i1.491.

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This study was started by extraction of Eucalyptus deglupta Blume. Using organic solvent (n-hexane, ethyl acetate, ethanol and water) followed by phytochemical screening and toxicity test using Brine Shrimp Lethality Test (BSLT) method. Isolation and identification of chemical compounds contained in the fraction were done by column chromatography and Gas Chromatography-Mass Spectrometry (GC-MS) analysis. Phytochemical screening revealed the presence of alkaloids, flavonoids, steroids and phenolics in the extract. Toxicity test results showed that the ethyl acetate extract was potentially active with LC50 value of 617.95 ppm. The extract was continued to isolation stage and gave fraction EKEA-3.1 with LC50 value of 2759.93 ppm. Identification of chemical compounds in EKEA-3.1 with KG-MS analysis showed that EKEA-3.1 was suspected to be Stigmastan-3,5-diene.

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Rosita, Ida, Sri Wilarso B., and Arum Sekar Wulandari. "EFEKTIVITAS FUNGI MIKORIZA ARBUSKULA DAN PUPUK P TERHADAP PERTUMBUHAN BIBIT LEDA (Eucalyptus deglupta Blume) DI MEDIA TANAH PASCA TAMBANG Effectiveness of Arbuscular Mycorrhizal Fungi and P Fertilizer on Seedling Growth of Leda (Eucalyptus deglupta Blume)." Journal of Tropical Silviculture 8, no. 2 (October 24, 2017): 96–102. http://dx.doi.org/10.29244/j-siltrop.8.2.96-102.

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Leda (Eucalyptus deglupta) is one of fast growing species that prospecting for revegetation in post mined area. Leda is able to grow in poorly soil nutrient. The aim of this research is to analyze the effectiveness of AMF and P fertilizer on growth and P uptake of leda seedling. This research was conducted in split plot in Completely Randomize Design (CRD). The application AMF as a main plot consisted of 5 levels, namely M0 (control), M1(AMF from rubber plantation), M2 (AMF from primary forest), M3 (AMF from oil palm plantation), and M4 (AMF from natural rubber). The rock phosphate as subplot, consisted of three levels, such as 0 g P (P0), 2 g P (P1), and 5 g P (P2). The result showed that interaction between AMF from rubber plantation and 2 g of rock phosphate significantly gave the best effect for height and diameter of Leda while interaction between AMF-primary forest (M2) and P1 (2 g of rock phosphate) reach the best of the total dry weight. Both AMF from primary forest and oil palm plantation that combined with 2 g of rock phosphate give the best effect but was not significantly different for P uptake and P uptake efficiency.Key words: amf, growth, miychorrhiza, leda, p uptake, p efficiency

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Sudrajat, Dede J., Nurhasybi Nurhasybi, and Muhammad Zanzibar. "HUBUNGAN UMUR POHON DENGAN PRODUKSI DAN MUTU BENIH Acacia mangium Willd., Gmelina arborea Linn., DAN Eucalyptus deglupta Blume." Jurnal Penelitian Hutan Tanaman 8, no. 5 (December 2011): 267–77. http://dx.doi.org/10.20886/jpht.2011.8.5.267-277.

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Bigger, M. "The effect of attack by Amblypelta cocophaga China (Hemiptera:Coreidae) on growth of Eucalyptus deglupta in the Solomon Islands." Bulletin of Entomological Research 75, no. 4 (December 1985): 595–608. http://dx.doi.org/10.1017/s0007485300015856.

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AbstractReduction in growth of saplings of Eucalyptus deglupta resulting from die-back caused by Amblypelta cocophaga China was studied in forestry plantations in the Solomon Islands. At a standard spacing of 10 × 3 m, a comparison was made of tree growth and incidence of A. cocophaga attack on saplings planted in strips 2 m wide cut through secondary forest, with those from which all inter-row vegetation was cut back prior to planting. Initially, a greater proportion of trees was infested on the cleared than the uncleared plots, but at the end of the first year, at which time the attack was at its peak, no differences could be detected. From the fifth to the thirteenth month after planting out, uninfested trees on the cleared plots increased in height at an average rate of 60 cm per month. For every week that at least one A. cocophaga was recorded on a tree, this rate was depressed by 1·3 cm. On the uncleared plots, the average rate of increase of uninfested trees was only 42 cm per month and this was reduced by 1·0 cm for every week that an insect was recorded. By the end of the first year, an estimated 37% (in cleared plots) and 41% (in uncleared plots) of the potential stand was rendered useless for future timber production due to A. cocophaga damage. In terms of total stem volume (not log production), about 1 m3/h out of a potential 3 m3/h was lost in the uncleared plots and 0·2 m3/h out of a potential 0·6 m3/h in the uncleared ones. Whilst clearing did not reduce the incidence of A. cocophaga attack, the advantage of clearing in terms of increased tree growth was considerable.

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Harmand, Jean-Michel, Hector Ávila, Etienne Dambrine, Ute Skiba, Sergio de Miguel, Reina Vanessa Renderos, Robert Oliver, Francisco Jiménez, and John Beer. "Nitrogen dynamics and soil nitrate retention in a Coffea arabica—Eucalyptus deglupta agroforestry system in Southern Costa Rica." Biogeochemistry 85, no. 2 (July 12, 2007): 125–39. http://dx.doi.org/10.1007/s10533-007-9120-4.

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Marquez, Conrado, Rustum Aguilos, Renato Bacsal, Henry Adornado, and Maricar Aguilos. "Early Growth of 11 Native and Three Alien Tree Species in Northeastern Mindanao, Philippines." Forests 12, no. 7 (July 13, 2021): 909. http://dx.doi.org/10.3390/f12070909.

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Early growth performances of 11 native tree species were investigated in three different sites in Mindanao, Philippines, to evaluate their adaptability and potential for plantation development. Three alien species were added to assess how native species could potentially compete with these alien species based on survival rate, diameter growth rate (DGR), and height growth rate (HGR). A year after planting, the native species common to all sites that obtained >80% survival rate were Casuarina equisetifolia L. Alstonia macrophylla Wall. ex. G.Don., Alstonia scholaris (L.) R.Br., and Parkia javanica (Lam.) Merr. and were comparable to an alien species Acacia mangium Willd. The species with the lowest survival rate (30%) across all sites was Duabanga moluccana Blume. Native species P. javanica, Eucalyptus deglupta Blume, and A. macrophylla all had a DGR of 34 mm year−1 and were comparable with the alien species Schizolobium parahyba (Vell.) S.F.Blake with 38 mm year−1. However, the HGR of native species E. deglupta (245 cm year−1) and Melia dubia Cav. (230 cm year−1) were higher than an alien species S. parahyba (222 cm year−1). No native species can compete with the DGR (52 mm year−1) and HGR (384 cm year−1) of A. mangium. Rainfall significantly explained 13%–97% of DGR, HGR and survival rate of >70% of the species while air temperature explained about 17%–96% of the variations of similar variables. This early assessment provides a strong basis to better predict the early performances of native species in the Philippines. Through this, appropriate silvicultural intervention can be recommended towards improving the growth and survival of the native seedlings as alternative industrial tree plantation species in the country.

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Widodo, W. "STUDI PENDAHULUAN DAERAH PENYEBARAN, POPULASI, DAN HABITAT BETET JAWA." Berkala Penelitian Hayati 12, no. 2 (June 30, 2007): 121–28. http://dx.doi.org/10.23869/bphjbr.12.2.20075.

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On April and September 2006, preliminary study to know the distribution, population status and habitat of the Javan moustached parakeets (Psittacula alexandri alexandri Linnaeus 1758) were conducted in the Baluran and Alas Purwo National Parks (East Java) and in the Tilu Geder Mountain Forests and in the Darmaga IPB Campus Parks (West Java). Direct and indirect observations were used in this research. The results are found only 2 individuals of birds in the Darmaga IPB Campus Parks. However, 45 species of plants were recorded as the natural food resources for the Javan moustached parakeets in the fields. Almost 60 percent parts of plants i.e., fruits were food by birds, even if those birds are more frugivorous. Some species of plants were known as the nesting trees for the species, namely: Tectona grandis, Acacia lecophloea, Azadirachta indica, Tetrameles nudiflora and Eucalyptus deglupta. The Javan moustached parakeets have needed mangrove forests, beach forests, evergreen forests and old teak forests for their activities. The population and their habitat of javan parakeets are threatened by forest fragmentation effects and over hunting.

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Nawawi, Deded, Adesna Fatrawana, and Wasrin Syafii. "Kelarutan Lignin Kayu Cepat Tumbuh dalam Ekstraksi Alkali." Jurnal Ilmu Kehutanan 15, no. 1 (March 31, 2021): 82–88. http://dx.doi.org/10.22146/jik.v15i1.1512.

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The dissolution of wood lignin in the alkali solution were analyzed for two fast growing species, sengon (Paraserianthes falcataria) dan leda (Eucalyptus deglupta). Wood samples were extracted in 1% sodium hydroxide solution in cold and hot temperatures for 24 and 1 h, respectively. Extractable substances content, permanganate consumption (expressed as assumed lignin content) were analyzed from the filtrates, lignin content and diastereomeric of β-O-4 structure were analyzed from the wood residue after alkali extraction. The extracted substances from both of wood in hot alkali was higher than in cold alkali solution, although the time of cold alkali extraction was much longer that hot alkali extraction. Assumed lignin content in the extract was quite high in both samples which were 34.4-42.9% and 35.5-39.8% including 2,15-2,29% dan 1,04-1,32% of lignin for cold and hot alkali extraction, respectively. The changes in stereo isomeric form, erythro and threo, of β-O-4 structure of lignin in wood residue indicated that partial depolimerization of lignin was takec place during alkali treatment.

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Magalhães, Luís M. S., Winfried E. H. Blum, and Noeli Paulo Fernandes. "Características edáfico-nutricionais de plantios florestais na região de Manaus. I.Crescimento de Eucalyptus deglupta Blume em solos de diferentes texturas." Acta Amazonica 16 (1986): 509–22. http://dx.doi.org/10.1590/1809-43921986161522.

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Foi Investigada a Influência de fatores edáfico-nutricionais no crescimento radicular e aéreo de Eucalyptus deglupta, plantado em solos de diferentes texturas, com idade de 3 anos e espaçamento de 3 x 3 m. Foram analisadas características físicas e químicas destes solos, como granulometria, porosidade, retenção de água, pH, bases trocáveis Corg e Ntotal. Foram realizadas também análises foliares. 0 crescimento radicular foi determinado a partir da avaliação do peso seco de raízes coletadas em trincheiras de 3,00 m de comprimento x 0,40 m de profundidade x 0,40 m de largura. Os resultados indicam que esta espécie teve um crescimento em altura 5 vezes maior no solo mais argiloso. Algumas características do solo estão significativamente correlacionadas com o crescimento aéreo, como o teor de Catroc, a percentagem de saturação de Al, a soma de bases trocáveis, Caorg, e os teores totais de Zn e Mn. 0 peso de raízes mostrou correlação significativa com Altroc, Ctroc, soma de bases trocáveis, percentagem de saturação de Al, Caorg, ZNtotal. Com excessão de Altroce percentagem de saturação de Al, todas estas correlações foram positivas.O peso seco de raízes foi maior na profundidade de 0-20cm no solo mais arenoso, mas nos solos mais argilosos este peso foi praticamente igual nas duas profundidades estudadas. 0 maior crescimento em altura, observado no solo mais argiloso, foi acompanhado de uma relação crescimento aéreo/crescimento radicular maior e portanto mais adequada.

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Ramadhania, Zelika Mega, Muhamad Insanu, Neni Sri Gunarti, Komar Ruslan Wirasutisna, Sukrasno Sukrasno, and Rika Hartati. "ANTIOXIDANT ACTIVITY FROM TEN SPECIES OF MYRTACEAE." Asian Journal of Pharmaceutical and Clinical Research 10, no. 14 (May 1, 2017): 5. http://dx.doi.org/10.22159/ajpcr.2017.v10s2.19470.

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Objective:Antioxidants are compounds that can inhibit free radical reactivity. They become very interesting to be observed because they can prevent some diseases like goat arthritis, cancer, cardiovascular disease, Alzheimer’s disease, macular degeneration etc. Since Indonesia is rich for its biodiversity, there are a lot of plants that have potential to be developed as new alternative antioxidants. The aim of this research was to evaluate antioxidant activity from ten species of myrtaceae (Syzygium cumini, S. samarangense, S. aqueum, S. aromaticum, S. polyantum, S. jambos, S. malaccense, Psidium guajava, Eucalyptus deglupta and Melaleuca leucadendra).Methods:Continuous extraction with Soxhlet apparatus was selected as extraction method. Three solvents (n-hexane, ethyl acetate and methanol) with different polarity were used in this process. DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging activity were used to evaluate antioxidant activity with ascorbic acid as a standard drug.Results:Based on the experiments, methanol extracts showed higher activity than other extracts with their IC50was below than 25 µg/ml.The lowest IC50 was exhibited by methanol extract of S. jambos, which was 7.8 µg/ml.Conclusion:It can be concluded that S. jambos is potential to be developed as a new alternative antioxidant.

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Stuebing, Robert B., and Joseph Gasis. "A survey of small mammals within a Sabah tree plantation in Malaysia." Journal of Tropical Ecology 5, no. 2 (May 1989): 203–14. http://dx.doi.org/10.1017/s0266467400003485.

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ABSTRACTA survey of small mammals was made in a tree plantation in Sabah, East Malaysia. Transects within pure plantings of Eucalyptus deglupta, Gmelina arborea, Albizia falcataria, and A. falcataria/Theobroma cacao were compared with a similar transect laid through seven-year-old logged forest near the plantation. A total of 16 small mammal species were trapped, with 11 found in the logged forest area, and 15 in the plantation. Values for the Shannon-Wiener Diversity Index (H') and for biomass were highest in logged forest, which also showed a low (<45%) Percent Similarity when compared with any of the plantation areas. Highest diversity and biomass values within the plantation were found in Albizia falcataria plantings, while the lowest were found in A. falcataria underplanted with Theobroma cacao. All plantation areas were dominated by Maxomys whiteheads, whereas A. falcataria plantings had the highest numbers of Tupaia glis and Tupaia tana.The study shows that although tropical plantations of exotic tree species can support a large number of species of scansorial small mammals, overall diversity and species biomass per hectare is much lower than that found in logged forest.

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Darmianti, Sri, Asmawati Munir, and Lili Darlian. "JENIS-JENIS EPIFIT DAN POHON INANGNYA DI KAWASAN HUTAN CAGAR ALAM NAPABALANO KABUPATEN MUNA." AMPIBI: Jurnal Alumni Pendidikan Biologi 5, no. 4 (October 28, 2022): 151. http://dx.doi.org/10.36709/ampibi.v5i4.28322.

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Penelitian ini bertujuan mengetahui jenis-jenis tumbuhan epifit dan pohon inang di kawasan Hutan Cagar Alam Napabalano Kabupaten Muna Provinsi Sulawesi Tenggara. Metode yang digunakan adalah metode eksplorasi dengan teknik jelajah. Teknik analisis data secara deskriptif. Hasil penelitian ditemukan 16 spesies epifit, 9 spesies dari familia Orchidaceae dan 7 spesies dari familia Polypodiaceae dan 10 spesies pohon inang dari 10 familia. Pohon inang yang banyak berasosiasi dengan epifit adalah Tectona grandis, kemudian Elmerillia celebica Dandy sedangkan pohon inang yang sedikit berasosiasi epifit yaitu Shorea koordesii Bl, Ficus benjamina L., Eucalyptus deglupta Bl., Pterocarpus indicus Willd., Anthocephalus cadamba Miq., Schleichera oleosa Lour., dan Pterospermum javanicum Jungh., rata-rata ditempati 1 spesies epifit. Epifit yang banyak berasosisi dengan pohon inang yaitu dari genus Cymbidium dengan 5 spesies pohon dan genus Drynaria dengan 4 spesies pohon, sedangkan epifit yang sedikit berasosiasi dengan pohon inang yaitu Acriopsis javanica Reinw., Aerides odorata Lour., Davallia denticulate (Brum.) Mett., Drymoglossum piloselloides (Linn.) Pr., Elaphoglossum rimbachii J., Nepholepis falcata (Cap.) C. Chr. Pomatocalpa kunstleri (Hk.f) J.J.S., Phalaeonepsis denevei J.J.S., Phymatodes scolopendria (Burm. F.) Ching., Schoenorchis juncifolia Bl., Thrixspermum formolnum (Bl.) Rehbf., dan Vanda limbata Bl., yang masing-masing berasosiasi dengan 1 spesies pohon.

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Chua, BL, YC Khor, A. Ali, and H. Ravikumar. "INFLUENCE OF ULTRASOUND-ASSISTED OSMOTIC DEHYDRATION PRE-TREATMENT ON TOTAL PHENOLIC CONTENT, ANTIOXIDANT CAPACITY AND P-CYMENE CONTENT OF EUCALYPTUS DEGLUPTA." JOURNAL OF TROPICAL FOREST SCIENCE 33, no. 2 (April 30, 2021): 149–59. http://dx.doi.org/10.26525/jtfs2021.33.2.149.

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Cornelius, J. P., E. A. Corea, and J. F. Mesén. "Genetic variation in height growth and leaf colour of Eucalyptus deglupta Blume at ages up to 16 months in Costa Rica." Forest Ecology and Management 75, no. 1-3 (July 1995): 49–59. http://dx.doi.org/10.1016/0378-1127(95)03539-m.

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Bonilla-Chaves, Róger, and Róger Moya-Roque. "Determinación de los extractivos y su correlación con el peso específico básico de diez especies utilizadas como sombra en cafetales de Costa Rica." Revista Forestal Mesoamericana Kurú 11, no. 27 (June 24, 2014): 34. http://dx.doi.org/10.18845/rfmk.v11i27.1776.

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En América Central, los cafetales cuentan con árboles frutales y maderables con el fin de diversificar el cultivo y la producción. No obstante, éstas especies poseen poca información de las propiedades que determinan su potencial de uso. El objetivo del presente estudio es cuantificar el porcentaje de extractivos solubles en diferentes solventes, hidróxido de sodio, diclorometano,etanol-tolueno, agua caliente, agua fría. Se determinó la correlación entre los extractivos solubles con el peso específico de la albura y el duramen de 10 especies utilizadas como sombra en cafetales de Costa Rica. Se tomaron dos árboles de cada una de las especies de árboles de sombra en plantaciones de café y se extrajo material de la madera a 1,3 metros de altura. La madera fue molida y determinó la cantidad de extraíbles con los diferentes solventes, según las normas de la Asociación de estándares y materiales de América (ASTM). En el análisis químico, los porcentajes de extraíbles encontrados variaron de acuerdo al solvente utilizado; en hidróxido de sodio de 8,5 a 23,21%, en diclorometano de 1,71% a 8,57%, en etanol-tolueno de 0,15% a 8,79%, en agua caliente de 0,99 a 7,01% y en agua fría de 1,07% a 7,98%. En la especie Croton niveus el porcentaje de extractivos fue mayor en la albura, en comparación con el duramen. En Cupressus lusitanica, Eucalyptus deglupta, Eucalyptus saligna, Pinus caribaea y Trichilia havanensis el duramen presentó mayor porcentaje de extractivos. En el resto de especies, no se presentaron diferencias entre los dos tipos de madera. En forma general se observó que las 10 especies presentan extractivos en la madera entre 1y 10%. En cuanto a la relación de los extractivos con el peso específico básico se determinó que un aumento del peso específico de la especies incrementa el contenido de extraíbles en agua fría en la albura y los extractos en agua caliente en el duramen, pero disminuye los extraíbles en diclorometano en el duramen.

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Schaller, Michaela, Götz Schroth, John Beer, and Francisco Jiménez. "Species and site characteristics that permit the association of fast-growing trees with crops: the case of Eucalyptus deglupta as coffee shade in Costa Rica." Forest Ecology and Management 175, no. 1-3 (March 2003): 205–15. http://dx.doi.org/10.1016/s0378-1127(02)00079-8.

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Palma, Richmund, and Wilfredo Carandang. "Carbon Sequestration and Climate Change Impact on the Yield of Bagras (Eucalyptus deglupta Blume) in Bagras-Corn Boundary Planting Agroforestry System in Misamis Oriental and Bukidnon, Philippines." Journal of Environmental Science and Management 17, no. 2 (June 30, 2014): 29–37. http://dx.doi.org/10.47125/jesam/2014_2/03.

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Bagras-corn boundary planting agroforestry system for biomass production and climate change mitigation is essential options for smallholder agroforestry farms in Misamis Oriental and Bukidnon, Philippines. In this study, the multiple linear regression analysis was used to develop an appropriate prediction models for yield and biomass expansion factor from soil chemical properties, physiographic characteristics, stand attributes, rainfall and temperature. Results showed strong association of age, site index, temperature and spacing with yield (88.7 %). Based on the model, the predicted biomass accumulation at 52 trees per hectare was 24.44, 73.07 and 78.67 Mg ha-1. The mean annual aboveground biomass accumulation was 24.44, 7.31 and 3.93 Mg ha-1 y-1 at ages 1, 10 and 20 years. The equation developed had shown the predicted positive response of bagras to future changes in seasonal mean temperature. Establishing bagras at a distance of 2 m, site index equal to 19 m, age set at 10 y was predicted to yield 0.1974 m3 per tree in 2020. At 2050, yield was predicted to balloon to approximately 3.1182 m3 per tree. Yield and biomass production in boundary plantings can be highly variable – dependent on environmental and soil characteristics and tree spacing.

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Michel, Ndotar, Joseph Martin Bell, Kosh-Komba Ephrèm, Kamba Mebourou Emmanuel, Stéphane Nazaire Mandiapevo, and Sylla Sembala. "Floristic Diversity of Recruits in Plantations of Eucalyptus Deglupta B., 1863, Pinus Caribeae M., 1851, And Gmelina Arborea R., 1814: Case of Cellucam Plantations Near Edea (Litoral, Republic of Cameroon)." European Journal of Agriculture and Forestry Research 10, no. 2 (February 15, 2022): 1–13. http://dx.doi.org/10.37745/ejafr.2013/vol9n2113.

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Floristic diversity is the set of plant species of an ecosystem or a given environment. Recruits are species regenerated after a disturbance in an environment. In this study it is a natural regeneration different from the artificial regeneration. The main objective of this study is to assess the level of natural regeneration under the artificial plantations. The strip sounding method is used over approximately two (2) hectares per type of plantation. Parameters measured are the abundance of recruits, the specific richness, the abundance of genera and families and the diameters of the stems. The floristic diversity was assessed through five indices. These are the Shannon indices, Simpson indices, Hill indices, regularity indices and generic diversity indices. . The results of the inventory show that the abundance of recruits is significantly different in the plantations and the surrounding forest. Species richness varies by type of plantation. Almost all of the three types of vegetation in the plantations have a Shannon index significantly greater than 1 and testifies to the very high diversity. The 1-Hill difference reached the value 0.97, 0.94 and 0.9 which values very close to 1. The regularity index shows that the taxa of plant communities of the recruits are not regularly distributed and have a low taxonomic richness. The lowest value of the generic diversity indices is 1.07. This shows that generic diversity is low in the three plantations. The floristic affinity between the 3 plantations is greater than 50%. According to Sørensen, these results demonstrate that the three plantations have the same floristic composition and constitute the same biological unit.

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"Eucalyptus deglupta x Eucalyptus urophylla." CABI Compendium CABI Compendium (January 7, 2022). http://dx.doi.org/10.1079/cabicompendium.22492.

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"Eucalyptus deglupta x Eucalyptus pellita." CABI Compendium CABI Compendium (January 7, 2022). http://dx.doi.org/10.1079/cabicompendium.22446.

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"Eucalyptus deglupta (rainbow gum)." CABI Compendium CABI Compendium (January 7, 2022). http://dx.doi.org/10.1079/cabicompendium.22622.

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This datasheet on Eucalyptus deglupta covers Identity, Overview, Associated Diseases, Pests or Pathogens, Distribution, Biology & Ecology, Environmental Requirements, Uses, Management, Genetics and Breeding, Economics, Further Information.

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"Eucalyptus deglupta (rainbow gum)." PlantwisePlus Knowledge Bank Species Pages (January 7, 2022). http://dx.doi.org/10.1079/pwkb.species.22622.

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Andrianova, T. V. "Coniella australiensis. [Descriptions of Fungi and Bacteria]." IMI Descriptions of Fungi and Bacteria, no. 163 (August 1, 2005). http://dx.doi.org/10.1079/dfb/20063057760.

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Abstract A description is provided for Coniella australiensis. Information is included on the disease caused by the organism, its transmission, geographical distribution (South Africa, India, Israel, Russia, Australia, Papua New Guinea, France, Netherlands, Norway, Hawaii), and hosts (Citrus sp. and Elaeocarpus bifidus, Eucalyptus deglupta, Eucalyptus pellita, Geranium album, Geranium multiflorum, Macaranga indica, Pelargonium australe, Pelargonium centrilobum, Tecoma australis [Pandorea pandorana] and Viola tricolor).

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Awaliyan, H. M. Rakhmat, Enih Rosamah, and Edi Sukaton. "KARAKTERISTIK TANIN DARI EKSTRAK KULIT KAYU LEDA (Eucalyptus deglupta Blume.)." ULIN: Jurnal Hutan Tropis 1, no. 1 (December 14, 2017). http://dx.doi.org/10.32522/u-jht.v1i1.859.

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Kulit kayu yang mulanya merupakan limbah industri perkayuan mulai menjadi pusat perhatian. Hal ini dikarenakan kulit kayu banyak memiliki potensi yang dapat dimanfaatkan, selain jumlahnya yang kian meningkat juga ketersediaannya berkesinambungan. Ekstraktif merupakan salah satu potensi yang terkandung dalam kulit kayu yang dapat diperoleh dengan cara ekstraksi. Tanin dapat digunakan untuk berbagai keperluan seperti bahan pengawet, bahan penyamak, bahan perekat, bahan pewarna, bahan farmasi atau bahan industri kimia lainnya. Penelitian ini bertujuan untuk mengetahui kandungan ekstrak yang terdapat pada kulit kayu Eucalyptus deglupta Blume dan untuk mengetahui sifat fisik dan kimia serta kereaktifan tanin yang dihasilkan.Penelitian ini menggunakan 4 macam pelarut yang berbeda untuk menghasilkan ekstrak. Serbuk kulit E. deglupta diekstrak dengan menggunakan pelarut air, pelarut Na2CO3 0,5%, pelarut Urea 0,5% dan pelarut lindi hitam dimana perbandingan pelarut dan serbuk kulit 1 : 5. Hasil ekstraksi menghasilkan nilai rataan rendemen bervariasi yang nilainya berturut-turut sebesar 9,650%, 16,543%, 9,675% dan 28,137% dengan nilai rataan kadar padat berturut-turut sebesar 2,975%, 5,642%, 3,399% dan 9,869%.

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Awaliyan, H. M. Rakhmat, Enih Rosamah, and Edi Sukaton. "KARAKTERISTIK TANIN DARI EKSTRAK KULIT KAYU LEDA (Eucalyptus deglupta Blume.)." ULIN: Jurnal Hutan Tropis 1, no. 1 (December 14, 2017). http://dx.doi.org/10.32522/ujht.v1i1.859.

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Kulit kayu yang mulanya merupakan limbah industri perkayuan mulai menjadi pusat perhatian. Hal ini dikarenakan kulit kayu banyak memiliki potensi yang dapat dimanfaatkan, selain jumlahnya yang kian meningkat juga ketersediaannya berkesinambungan. Ekstraktif merupakan salah satu potensi yang terkandung dalam kulit kayu yang dapat diperoleh dengan cara ekstraksi. Tanin dapat digunakan untuk berbagai keperluan seperti bahan pengawet, bahan penyamak, bahan perekat, bahan pewarna, bahan farmasi atau bahan industri kimia lainnya. Penelitian ini bertujuan untuk mengetahui kandungan ekstrak yang terdapat pada kulit kayu Eucalyptus deglupta Blume dan untuk mengetahui sifat fisik dan kimia serta kereaktifan tanin yang dihasilkan.Penelitian ini menggunakan 4 macam pelarut yang berbeda untuk menghasilkan ekstrak. Serbuk kulit E. deglupta diekstrak dengan menggunakan pelarut air, pelarut Na2CO3 0,5%, pelarut Urea 0,5% dan pelarut lindi hitam dimana perbandingan pelarut dan serbuk kulit 1 : 5. Hasil ekstraksi menghasilkan nilai rataan rendemen bervariasi yang nilainya berturut-turut sebesar 9,650%, 16,543%, 9,675% dan 28,137% dengan nilai rataan kadar padat berturut-turut sebesar 2,975%, 5,642%, 3,399% dan 9,869%.

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"Coniella australiensis. [Distribution map]." Distribution Maps of Plant Diseases, No.April (August 1, 2009). http://dx.doi.org/10.1079/dmpd/20093074267.

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Abstract A new distribution map is provided for Coniella australiensis Petr. Ascomycota: Schizoparmaceae. Hosts: Citrus spp., Cornus alba, Elaeocarpus bifidus, Eucalyptus deglupta, Eucalyptus pellita, Geranium album, G. multiflorum, Malvaceae, Macaranga indica, Pelargonium spp., Tecoma australis [Pandorea pandorana] and Viola tricolor. Information is given on the geographical distribution in Europe (France, Netherlands, Norway, Russia (Western Siberia), UK (England and Wales)), Asia (India (Rajasthan), Israel), Africa (South Africa), North America (USA (Hawaii)), Oceania (Australia (New South Wales, Queensland), Papua New Guinea).

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Abas, Esmael L., Onofre Corpuz, and Lumina D. Cabilo. "Light Regime Under Eucalyptus Deglupta As Hedgerows and Its Effect on Intercropped Zea Mays." SSRN Electronic Journal, 2015. http://dx.doi.org/10.2139/ssrn.3530595.

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Insuan, Orapin, Benchaluk Thongchuai, Rujirek Chaiwongsa, Supaporn Khamchun, and Wimonrut Insuan. "Antioxidant and anti-inflammatory properties of essential oils from three Eucalyptus species." Chiang Mai University Journal of Natural Sciences 20, no. 4 (September 2021). http://dx.doi.org/10.12982/cmujns.2021.091.

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Abstract Eucalyptus essential oils are used as traditional medicines in many countries. The objective of this study was to evaluate the antioxidant and anti-inflammatory activities of leaf essential oils extracted from three different Eucalyptus species on HepG2 and RAW264.7 cells. Essential oils were distilled from fresh leaf samples, and the chemical constituents were analyzed using gas chromatography–mass spectrometry. The antioxidant activities of essential oils were determined using ABTS and hydroxyl radical scavenging assays, and hydrogen peroxide (H2O2)-induced oxidative stress in HepG2 cells. Additionally, lipopolysaccharide (LPS)-activated RAW264.7 macrophages were used to evaluate the anti-inflammatory properties. The results revealed that Eucalyptus citriodora and Eucalyptus urophylla leaf essential oils had a high content of oxygenated monoterpenes, whereas Eucalyptus deglupta contained a high amount of monoterpene hydrocarbons. Essential oils extracted from the three Eucalyptus species showed antioxidant and anti-inflammatory activities. E. citriodora and E. urophylla leaf essential oils had strong antioxidant activity against H2O2-induced oxidative stress in human HepG2 cells. Additionally, E. citriodora leaf essential oil, which contains a high amount of citronellal, exhibited the most potent anti-inflammatory activity in LPS-activated RAW264.7 macrophages. The antioxidant and anti-inflammatory effects of essential oils depended on their chemical composition. A principal component analysis explained 100% of the variance was performed to construct three groups based on the chemical components and antioxidant and anti-inflammatory activities. This study suggests that E. citriodora leaf essential oil, which represents a good source of oxygenated monoterpenes, could be considered a potential phytochemical agent for the prevention of oxidative stress and inflammation. Keywords: Antioxidant, Anti-inflammatory effect, Eucalyptus essential oils, Gas chromatography–mass spectrometry, Principal component analysis

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Rojas, Marilyn. "Carbono almacenado en plantaciones forestales de Pinus caribaea, Cupressus lusitanica y Eucalyptus deglupta en el Proyecto Hidroeléctrico Cachí." Revista de Ciencias Ambientales, no. 47 (June 1, 2014). http://dx.doi.org/10.15359/rca.47-1.1.

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Journal articles on the topic 'Eucalyptus deglupta'

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