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Wyświetlanie 1-4 z 4
Tytuł:
Pharmacognostical and antibacterial evaluation of Murraya koenigii (L) Spreng
Autorzy:
Savitha, G.
Balamurugan, S.
Powiązania:
https://bibliotekanauki.pl/articles/11886.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
pharmacognosy
antibacterial evaluation
Murraya koenigii
tropical tree
medicinal plant
Opis:
Our present study was aimed to detect the medicinal uses of the plant Murraya koenigii (L) Spreng belonging to the family Rutaceae by performing various studies such as Pharmacognostical, phytochemical and antibacterial activity, using seven different bacterial strains, which are harmful to human beings. The Murraya koenigii commonly known as “Curry leaf“ has been recognized in different systems of traditional medicines for the treatment of different diseases and ailments of human beings. The leaves of the plant are said to be cooling and stomachache. The study includes macroscopy, microscopy, preliminary phytochemical screening and antibacterial evaluation.
Źródło:
International Letters of Natural Sciences; 2014, 17
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seasonal dynamics in cambial activity and the formation of xylem and phloem in the branches of Cinnamomum camphora
Autorzy:
Dong, M.
Xu, Y.M.
Lin, H.
Li, X.Q.
Xia, Q.Q.
Powiązania:
https://bibliotekanauki.pl/articles/41385.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
seasonal dynamics
cambial activity
formation
xylem
phloem
branch formation
tree
tropical tree
Cinnamomum camphora
wood formation
phenology
Opis:
The cambial activity and periodicity of secondary xylem and phloem formation have been less studied in tropical tree species than in temperate ones. Cambium activity is the only source of timber production. Studies on its activity and xylem formation can provide helpful data for dendrochronology and possible factors that control tree growth, the yield and quality of wood. Cinnamomum camphora is an important fast-growing tree for furniture and sculpture wood in South China. Its dynamics of cambial activity was not reported. During the growth season in 2011, five trees of Cinnamomum camphora plantation were monitored on the campus of Huazhong Agricultural University in central china (located on 113°41’ to 115°05’ E and 29°58’ to 31°22’ N). Sampling time was from 13, February 2011 to 13, February 2012. Some small stems of 15–20 cm length were selected to sample in the middle of 2–3 years old health branches in the central crown of these trees. The observational study found that the cambium of camphor trees was active from March to October and dormant from November to February. Onset of cambial cell division was observed in early March, one week after sprouting of new buds. The morphology of the cells and number of cell layers in the cambium zone varied throughout the year. In early March, cambium reactivated with the rising of temperature, the cell wall was relative thick. The number of cell layers increased from 2–3 in middle Feb. to 3–5. In June, the number of cell layers in cambium reached the maximum of 5–7 in a radial direction. In mid March, phloem cells began to differentiate, followed by xylem three weeks later. The number of cell layers in immature phloem and xylem increased dramatically before mid June and the increment of cell layers in xylem was almost fifth times of phloem in the differentiating process. The phloem cells mainly stopped dividing new cells in end of October, but xylem cells were still in the activity a week later. The annual activities of cambium was in accordance with the air mean temperature change in 2011–2012. The results showed that the cambial activity and formation of xylem and phloem were related to the environmental factors, especially the temperature.
Źródło:
Dendrobiology; 2016, 75
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimating forest biomass by remote sensing RADAR data in Brazil
Autorzy:
Santos, J.R.
Gama, F.F.
da Conceicao Bispo, P.
Powiązania:
https://bibliotekanauki.pl/articles/52438.pdf
Data publikacji:
2014
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Technologii Drewna
Tematy:
forest biomass
biomass modelling
forest inventory
tropical forest
remote sensing
eucalyptus tree
stand
RADAR data
Brazil
Źródło:
Drewno. Prace Naukowe. Doniesienia. Komunikaty; 2014, 57, 192
1644-3985
Pojawia się w:
Drewno. Prace Naukowe. Doniesienia. Komunikaty
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Epidemiology of tree-hole breeding mosquitoes in the tropical rainforest of Imo State, South-East Nigeria
Autorzy:
Anosike, J C
Nwoke, B.E.B.
Okere, A.N.
Oku, E.E.
Asor, J.E.
Emmy-Egbe, I.O.
Adimike, D.A.
Powiązania:
https://bibliotekanauki.pl/articles/50771.pdf
Data publikacji:
2007
Wydawca:
Instytut Medycyny Wsi
Tematy:
ecology
South-East Nigeria
yellow fever
mosquito
epidemiology
tree hole
Nigeria
human disease
Imo State
forest reserve
disease vector
rural area
tropical region
Opis:
The study of tree-hole breeding mosquitoes was carried out in the tropical rainforest of Imo State Nigeria (two rural areas and two forest reserves in some parts of Orlu Senatorial Zone) between May – October 2002. Using standard entomological procedures, two macrohabitats (natural tree-holes and bamboo traps) and two microhabitats (leaf axils of cocoyams/pineapples and leaf axils of plantain/banana) were sampled for various mosquito species. Mosquitoes were recovered from all the various biotypes sampled. Types of mosquitoes species encountered, their relative abundance, as well as genera varied signifi cantly during the study (p<0.05). Four genera of mosquitoes: Aedes, Culex, Anopheles and Toxorhynchites were recovered while 16 species of mosquitoes encountered include: Aedes aegypti, Ae. africanus, Ae. simpsoni, Ae. albopictus, Ae. stokesi, Ae. taylori, Ae. apicoargenteus, Culex quinquefasciatus, Cx. nebulosus, Cx. trigripes, Cx. decens, Anopheles gambiae, An. funiestus, An. coustani and Toxorhynchites viridibasis. Most of the mosquitoes showed oviposition preferences for one or more habitats. The presence of Ae. africanus, Ae. simpsoni and Ae. aegypti indicate that the study areas were at risk of yellow fever epidemic. The presence of Anopheles and Culex species ensured endemicity of malaria and fi lariasis, while the recovery of Ae. albopictus in this region suggests a possible outbreak of dengue fever in future if not properly controlled.
Źródło:
Annals of Agricultural and Environmental Medicine; 2007, 14, 1
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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