Results 21 to 30 of about 6,223,975 (248)

Light-related variation in sapling architecture of three shade-tolerant tree species of the Mexican rain forest [PDF]

, 2008
The crown architecture of three shade-tolerant tree species (two subcanopy and one mid-canopy) was analyzed in relation to the light regime of the forest understorey.
Bongers, F, Meave, J., Bongers, F., Martinez-Sanchez, J.L., Martínez-Sánchez, JL, Meave del Castillo, Jorge Arturo   +5 more
core   +1 more source

Drought Deteriorates the N Stoichiometry of Biomass Production in European Beech Saplings Under Global Change [PDF]

Frontiers in Forests and Global Change, 2021
Continuous nitrogen (N) deposition has raised concerns that temperate forest ecosystems shift from N limitation to progressing phosphorus (P) limitation under global change. According to the multiple resource limitation theory, this will not only influence P economy, but also reduce N uptake and use efficiencies of trees such that growth is equally ...
Köhler, Julia, Yang, Nan, Pena, Rodica, Polle, Andrea, Meier, Ina C., Köhler, Julia; 1Plant Ecology, Albrecht-von-Haller Institute for Plant Sciences, University of Göttingen, Göttingen, Germany, Yang, Nan; 2Forest Botany and Tree Physiology, University of Göttingen, Göttingen, Germany, Pena, Rodica; 2Forest Botany and Tree Physiology, University of Göttingen, Göttingen, Germany, Polle, Andrea; 2Forest Botany and Tree Physiology, University of Göttingen, Göttingen, Germany, Meier, Ina C.; 1Plant Ecology, Albrecht-von-Haller Institute for Plant Sciences, University of Göttingen, Göttingen, Germany   +9 more
openaire   +3 more sources

Multiple environmental control of leaf area and its significance for productivity in beech saplings [PDF]

Trees, 2011
Climatic change exposes temperate trees to the simultaneous alteration of various growth-relevant factors, among them increased temperatures, extended growing season length and rising atmospheric [CO2], often in combination with more severe droughts and reduced air humidities in summer, and elevated atmospheric N deposition.
Fender, Ann-Catrin, Mantilla-Contreras, Jasmin, Leuschner, Christoph   +2 more
openaire   +2 more sources

Growth and quality of australian cedar saplings originated from different multiclonal minigarden systems

Semina: Ciências Agrárias, 2016
Forestry researchers often evaluate minicutting vegetative propagation of Australian cedar (Toona ciliata) as a viable technique for this species. However, the adoption of minigarden systems for commercial propagation still requires viability and quality
Mírian Peixoto Soares da Silva, Deborah Guerra Barroso, Juliana Sobreira de Souza, Daniele de Alvarenga Ferreira, Taiane Pires de Freitas de Oliveira, Kelly Ribeiro Lamônica, Cláudia Sales Marinho   +6 more
doaj   +1 more source

Collection and investigation of native and non-native poplar in northern Khorasan- Bojnord [PDF]

تحقیقات جنگل و صنوبر ایران, 2002
Limitation Natural Forest in the world and incressing of needs to wood production , result have had most attention to poplars. With attention to species various of poplars, it is disterbuted in different climatic condition of Iran.in the north Кhorasan ...
Ali Bozorgmehr, Ali Reza Modir Rahmati, Rafatollah Ghasemi, Khodadad Abedi   +3 more
doaj   +1 more source

Morphophysiological changes of Acca sellowiana (Myrtaceae: Myrtoideae) saplings under shade gradient [PDF]

Brazilian Journal of Biology, 2022
Understanding morphological and physiological changes under different light conditions in native fruit species in juveniles’ stage is important, as it indicate the appropriate environment to achieve vigorous saplings.
L. R. Silva, A. P. C. Moura, B. V. Gil, A. Rohr, S. M. Z. Almeida, J. Donazzolo, A. T. Perboni, F. L. R. Oliveira, B. F. Sant’Anna-Santos, L. Galon, M. A. Danner   +10 more
doaj   +1 more source

NUTRITIONAL COMPOSITION OF Arceuthobium vaginatum subsp. vaginatum AND A. globosum subsp. grandicaule AND THEIR EFFECT ON IN VITRO RUMINAL FERMENTATION KINETICS

Tropical and Subtropical Agroecosystems, 2023
Background: Arceuthobium vaginatum subsp. vaginatum (BM; black mistletoe) and Arceuthobium globosum subsp. grandicaule (YM; yellow mistletoe), are two parasitic plant species abundant in the forests of northern and central Mexico and Central America ...
Maria Mitsi Nalleli Becerril-Gil, Agustín Olmedo-Juárez, Angel Rolando Endara-Agramont, Julieta Gertrudis Estrada-Flores   +3 more
doaj   +1 more source

Comparison of methods for harvesting in sapling stand

Silva Fennica, 1978
A theoretical nomogram was made for estimating the costs of fully mechanized thinning and the driving speed of the machine. Based on this nomogram and the previous studies three harvesting methods were compared; systematic fully mechanized harvesting ...
Harstela, Pertti, Tervo, Leo
doaj   +1 more source

Long term impacts of crop cultivation and tree shading on Piliostigma thonningii (Schumach) Milne-Redhead population, growth and biomass production after charcoal production in central Zambia

Global Ecology and Conservation, 2018
Charcoal production in Sub-Saharan Africa is often perceived to have serious ecological and environmental effects even although it does not necessarily result in forest conversion to other land uses.
Emmanuel Ngulube Chidumayo
doaj   +1 more source

Comparison of growth characteristics and seed production in jojoba (Simmondsia chinensis) seedlings and cuttings [PDF]

تحقیقات جنگل و صنوبر ایران, 2013
Jojoba (Simmondsia chinensis (Link) C. K. Schneid) is a very tolerant shrub to drought condition. Its seeds contain about 50 % oil or liquid wax and have a high potential for cosmetic, pharmaceutical, food, etc.
Seyyed Mahdi Mortazavi Jahromi, Ali Asghar Pahlavanpur Fard   +1 more
doaj   +1 more source