Results 21 to 30 of about 111,464 (290)

Terpenoid variations within and among half-sibling avocado trees, Persea americana Mill. (Lauraceae). [PDF]

PLoS ONE, 2013
Chemical analyses were conducted to determine the qualitative and quantitative differences in monoterpenes and sesquiterpenes in plant material from avocado trees, Persea americana Mill. (Lauraceae). The initial study analyzed plant material sampled from
Jerome Niogret, Nancy D Epsky, Raymond J Schnell, Edward J Boza, Paul E Kendra, Robert R Heath   +5 more
doaj   +1 more source

Generation, Ranking and Unranking of Ordered Trees with Degree Bounds [PDF]

Electronic Proceedings in Theoretical Computer Science, 2016
We study the problem of generating, ranking and unranking of unlabeled ordered trees whose nodes have maximum degree of Δ. This class of trees represents a generalization of chemical trees. A chemical tree is an unlabeled tree in which no node has degree
Mahdi Amani, Abbas Nowzari-Dalini
doaj   +1 more source

Branch-Localized Induction Promotes Efficacy of Volatile Defences and Herbivore Predation in Trees [PDF]

, 2022
Induction of plant defences can show various levels of localization, which can optimize their efficiency. Locally induced responses may be particularly important in large plants, such as trees, that show high variability in traits and herbivory rates ...
Seifert Carlo L., Weinhold Alexander, van Dam Nicole M., Holicová Tereza, Volf Martin, Wirth Christian, Alander Erika, Salminen Juha-Pekka, Uthe Henriette, Richter Ronny   +9 more
core   +1 more source

Height-diameter allometry of tropical forest trees [PDF]

, 2010
Tropical tree height-diameter (H:D) relationships may vary by forest type and region making large-scale estimates of above-ground biomass subject to bias if they ignore these differences in stem allometry.
Banin, Lindsay, L. White, F. Schrodt, Feldpausch, T.R., Iida, Y, Affum-Baffoe, K., K. S.-H. Peh, Wöll, H., B. H. Marimon-Junior, Patino, S, Fyllas, N M, King, D.A., O. L. Phillips, De Camargo, P, Lopez-Gonzalez, G, Woll, H, B. S. Marimon, Taedoumg, H E, de Camargo, P., Metcalfe, D.J., Sonke, B, Reitsma, J. M., Marimon-Junior, B H, Baker, Timothy R, S. Tan, Kassim, A R, Feldpausch, T. R., Salim, K A, Marshall, A. R., Peh, Kelvin S.-H., Drescher, M, Brondizio, E.S., Nilus, R., Taedoumg, H.E., E. F. Moran, Lopez-Gonzalez, G., D. J. Metcalfe, Phillips, O L, Keller, M, Nogueira, E. M., Keller, M., M. Palace, Nogueira, E.M., Higuchi, N., Quesada, Carlos A, Phillips, O.L., Baker, T R, Djagbletey, G., Franca, M. B., Phillips, Oliver L, Raventos, M. T., Berry, Nicholas J, Quesada, CA, White, L, Y. Iida, E. M. Nogueira, Domingues, T.F., K. A. Salim, Taedoumg, H. E., Quesada, C A, Hunter, M.O., Marshall, Andrew R, Camargo, P., de, Lenza, E., Hunter, M. O., E. T. A. Mitchard, Lovett, J C, G. Lopez-Gonzalez, E. S. Brondizio, Berry, N J, Arets, E.J.M.M., Baker, T.R., Lewis, S L, Tan, S., Hunter, M O, K. Abu Silam, Marshall, A.R., A. Hladik, Marimon-Junior, B.H., Woell, H., Brondizio, E. S., King, D A, P. M. Fearnside, Moran, E.F., Arets, E J M M, Phillips, OL, Abu Salim, K., S. Patiño, K. Affum-Baffoe, Higuchi, N, Marimon, B S, Affum-Baffoe, Kofi, Peh, K.S-H., N. M. Fyllas, Fyllas, N. M., Lovett, J. C., Lewis, SL, S. L. Lewis, Fyllas, N.M., Phillips, O. L., Lloyd, J, White, Lee, Lovett, Jonathan Cranidge, Schrodt, F, Djagbletey, Gloria, Salim, K.A., M. Drescher, Berry, N.J., Bird, M., P. de Camargo, Peh, K S H, Arets, Eric J M M, King, D. A., França, M.B., J. Chave, Fearnside, P M, Tan, S, Chave, J, Salim, K. A., Metcalfe, D. J., Peh, K.S.H., J. Kemp, Saiz, G., Baker, TR, D. A. King, Mitchard, E. T. A., Saiz, G, Marimon, B.S., Peh, K. S. -H., Nelson, B.W., Brondizio, E S, Kassim, A.R., B. Sonké, Iida, Y., H. Wöll, Sonke, B., Banin, L., Bird, M, Hladik, A, Raventos, M.T., Djagbletey, G, N. J. Berry, T. R. Baker, Lewis, Simon L, G. Djagbletey, A. R. Kassim, Franc, M.B., França, M B, Hladik, A., Moran, E F, Metcalfe, D J, Raventos, M T, Feldpausch, T R, N. Higuchi, Nilus, R, Fearnside, P.M., Nelson, B. W., Berry, NJ, C. A. Quesada, J. Lloyd, Chave, Jerome, Domingues, T. F., Feldpausch, TR, Banin, L, Bird, Michael, Feldpausch, Ted R, Lloyd, J., Marimon, B. S., A. R. Marshall, E. Lenza, Lewis, S.L., Quesada, C.A., Quesada, C. A., Kemp, J, Brondizio, Eduardo S, Nelson, B W, G. Saiz, White, L., T. R. Feldpausch, T. F. Domingues, J. M. Reitsma, Reitsma, J M, Drescher, M., Palace, M., Schrodt, F., Lenza, E, L. Banin, M. B. França, M. Keller, Fearnside, P. M., Kemp, J., M. Bird, Domingues, T F, Baker, T. R., Arets, E. J. M. M., E. J. M. M. Arets, J. C. Lovett, Philips, O.L., Affum-Baffoe, K, Berry, N. J., Palace, M, Mitchard, E.T.A., M. O. Hunter, Reitsma, J.M., Kassim, A. R., Marimon-Junior, B. H., Patiño, S., H. E. Taedoumg, Chave, J., R. Nilus, Arets, EJMM, Lovett, J.C., Lewis, S. L., Moran, E. F., Mitchard, E T A, M. T. Raventos, Nogueira, E M, de Camargo, Plinio, B. W. Nelson   +218 more
core   +1 more source

SOIL CHEMICAL ATTRIBUTES RELATIONSHIPS AROUND THE Araucaria angustifolia TREES IN AGROFORESTRY SYSTEMS [PDF]

, 2023
This work aimed to understand the relationships between araucaria trees and some abiotic factors (soil type, soil organic C and soil nutrient supply) in agroforestry systems (AFS).
João Bosco Vasconcellos Gomes, BOTOSSO, P. C., Tomaz Longhi-Santos, GOMES, J. B. V., LONGHI-SANTOS, T., Paulo Cesar Botosso   +5 more
core   +3 more sources

Energy and Chemicals from Trees [PDF]

Science, 1982
A brief overview of the potential of forest biomass to produce energy and chemicals is presented. Recent developments in tree improvement, delignification and enzymatic hydrolysis are discussed in the context of increased potential and utilization of wood.
openaire   +2 more sources

Trees as Bioindicators of Environmental Pollution and Its Impact on Wood Chemical Composition

BioResources, 2021
Trees provide one of the most versatile biomass resources for many applications, namely wood. The chemical composition of wood determines its properties, being of real significance for its further capitalization, and depending on many factors. In nature,
Carmen-Alice Teacă
doaj   +1 more source

Inducing decision trees with an ant colony optimization algorithm [PDF]

, 2012
Decision trees have been widely used in data mining and machine learning as a comprehensible knowledge representation. While ant colony optimization (ACO) algorithms have been successfully applied to extract classification rules, decision tree induction ...
Otero, Fernando E.B., Johnson, Colin G., Freitas, Alex A.   +2 more
core   +1 more source

On the Extremal Trees for Some Bond Incident Degree Indices with a Fixed Number of Segments

Journal of Chemistry, 2022
The Gourava indices and hyper-Gourava indices are introduced by Kulli in 2017. These graph invariants are related to the degree of vertices of a graph G. Let Tn,r be the class of all n−vertex chemical trees with r segments. In this paper, we characterize
Muzamil Hanif, Akhlaq Ahmad Bhatti, Muhammad Javaid, Ebenezer Bonyah   +3 more
doaj   +1 more source

Leaf nutrients inProsopis pallidaare determined by soil chemical attributes under eutric conditions in a dryland forest

, 2020
Key message Soil pH, EC, and salinity explain the leaf nutrient concentrations ofProsopis pallidadespite the high amount of soil nutrients near the trees.
Navarro-Cerrillo, Rafael M., Villar, Rafael, Salazar, Pablo C., Cruz, Gaston, Barron, Vidal, Grados, Nora   +5 more
core   +2 more sources