Results 21 to 30 of about 9,987 (223)

Aspectos da anatomia ecológica de folhas de Hevea brasiliensis Müell. Arg. () [PDF]

open access: yesActa Amazonica, 1980
Resumo A anatomia e morfologia comparada de folhas de Hevea brasiliensis Müell. Arg. em diferentes microclimas e habitats foram estudadas. Folhas em diferentes estratos foram comparadas e comparações também foram feitas entre folhas de estratos ...
Moacyr Eurípedes Medri, Eduardo Lleras
doaj   +1 more source

Wood quality of 10 clonal progenies of rubber tree as raw material for bioenergy

open access: yesMaderas: Ciencia y Tecnología, 2023
The use of wood as a bioenergetic source requires knowledge of its technical properties. The rubber tree Hevea brasiliensis has an economic life cycle of 25 to 30 years in Brazil.
Erick Phelipe Amorim   +8 more
doaj   +1 more source

Rubber tree (Hevea brasiliensis)

open access: yes, 2003
Ce chapitre fait le point des connaissances actuelles sur l'organisation de la diversité de l'hévéa. Il se fonde sur les acquis d'études antérieures et présente des résultats complémentaires issus d'analyses isoenzymatiques sur un plus grand nombre de génotypes.
Seguin, Marc   +3 more
openaire   +4 more sources

Genetic diversity of cultivated accessions and wild species of rubber tree using EST‑SSR markers

open access: yesPesquisa Agropecuária Brasileira, 2012
The objective of this work was to evaluate the efficiency of EST‑SSR markers in the assessment of the genetic diversity of rubber tree genotypes (Hevea brasiliensis) and to verify the transferability of these markers for wild species of Hevea. Forty‑five
Juliana Morini Küpper Cardoso Perseguini   +5 more
doaj   +1 more source

The phosphatides of Hevea Brasiliensis [PDF]

open access: yesBiochemical Journal, 1942
Abstract The presence of phosphatide in Hevea latex had long been suspected, but it was not until 1931 that Rhodes and Bishop isolated phosphatidic material containing 0.59 per cent nitrogen and 1.72 per cent phosphorus from the serum of latex which had been coagulated with ethanol.
openaire   +2 more sources

Nutrient content and redistribution in leaves of Hevea brasiliensis and Pinus oocarpa /
Concentração e redistribuição de nutrientes em folhas de Hevea brasiliensis e Pinus oocarpa

open access: yesSemina: Ciências Agrárias, 2000
The content of macronutrients (N, P, K, Ca, Mg, and S) and nutrient redistribution were evaluated in leaves of two species, an 8 years old angiosperm (Hevea brasiliensis) and a 25 years old a gymnosperm (Pinus oocarpa), both cultivated on an eutrophic ...
Ary Vieira de Paiva   +5 more
doaj   +1 more source

PEMBUATAN ARANG AKTIF DARI TEMPURUNG BIJI-BIJIAN ASAL TANAMAN HUTAN DAN PERKEBUNAN

open access: yesJurnal Penelitian Hasil Hutan (Journal of Forest Products Research), 2017
Research on µtilization of several seed shells of  Aleurites moluccana, Hevea brasiliensis, Canarium communne L and Cocos nucifera for activated carbon by  means of steam or ZnCl2 solution activat.ionwas conducted at the Forest• Product• Beaearch and ...
Nurmala Hudaya, Hartoyo Hartoyo
doaj   +1 more source

Spatio-temporal development of cuticular ridges on leaf surfaces of Hevea brasiliensis alters insect attachment [PDF]

open access: yesRoyal Society Open Science, 2020
Cuticular ridges on plant surfaces can control insect adhesion and wetting behaviour and might also offer stability to underlying cells during growth. The growth of the plant cuticle and its underlying cells possibly results in changes in the morphology ...
Venkata A. Surapaneni   +3 more
doaj   +1 more source

A review of the Mycrocylus ulei Ascomycetes fungus, causative agent of South American rubber-leaf blight Revisión sobre el hongo Microcyclus ulei, agente causal del mal suramericano de la hoja del caucho

open access: yesRevista Colombiana de Biotecnología, 2006
The Microcyclus ulei Ascomycetes fungus is the causal agent of south-American leaf blight (SALB), this being one of the most important diseases affecting the natural rubber tree (Hevea brasiliensis) in Latina-America and has been responsible for numerous
Ancízar Aristizábar Fabio   +2 more
doaj   +2 more sources

Investigations on the nutritional status of Hevea brasiliensis plantations in the humid forest zone of CameroonPart 2: Establishment of macro nutrient norms

open access: yesJournal für Kulturpflanzen, 2013
Standard nutrient values are needed for the assessment of optimum nutrient concentrations for improved and sustained yields. The aim of this study was to establish optimum soil and plant nutrient values for Hevea brasiliensis in the humid forest region ...
Jetro Nkengafac Njukeng   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy