Results 91 to 100 of about 86,692 (245)

Resistência do vimeiro, Salix spp. (Salicaceae), à pragas e doenças.

open access: yesCiência Florestal, 2010
Este trabalho teve o objetivo de avaliar a reação de resistência a pragas e doenças de clones locais do vimeiro comum, Salix x rubens, e de espécies introduzidas da Argentina, Chile, Alemanha e França. Três experimentos foram conduzidos em campo no ciclo
Jamille Casa   +3 more
doaj   +1 more source

Salix caprea

open access: yes, 1956
Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp.
openaire   +1 more source

Pattern of extinction of the woolly mammoth in Beringia. [PDF]

open access: yes, 2012
Extinction of the woolly mammoth in Beringia has long been subject to research and speculation. Here we use a new geo-referenced database of radiocarbon-dated evidence to show that mammoths were abundant in the open-habitat of Marine Isotope Stage 3 (∼45-
Beilman, DW   +7 more
core   +1 more source

Digitised herbarium specimen data reveal a climate change‐related trend to an earlier, shorter Canadian Arctic flowering season, and phylogenetic signal in Arctic flowering times

open access: yesNew Phytologist, EarlyView.
Summary The Arctic is experiencing some of the world's most rapid changes in climate. Arctic plant flowering time responses to climate change are understudied. Globally, conflicting evidence exists on whether flowering time responses to temperature are evolutionarily conserved.
Zoe A. Panchen   +3 more
wiley   +1 more source

Increasing sub/tropical eucalypt timber plantation profitability by value adding to thinnings [PDF]

open access: yes, 2012
New processing options and end-uses are being developed to create larger, more stable and higher-value markets for plantation-sourced wood. To justify continued expansion of Australia's current hardwood plantation estate it is becoming necessary to ...
Baillères, Henri   +3 more
core  

Molecular cytogenetic characterisation of Salix viminalis L. using repetitive DNA sequences [PDF]

open access: yes, 2013
Salix viminalis L. (2n=38) is a diploid dicot species belonging to the Salix genus of the Salicaceae family. This short-rotation woody crop is one of the most important renewable bioenergy resources worldwide.
Dudits, Dénes   +3 more
core   +1 more source

Improved Longan Genome Assembly Reveals Insights Into Flowering Mechanisms

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Longan is an exotic tropical fruit crop and exhibits off‐season flowering induced by potassium chlorate (KClO3), though the molecular mechanisms remain unclear. We assembled a high‐quality, 441.5 Mb genome of variety ‘Shixia’, with a contig N50 at 28.1 Mb, 29, 325 protein‐coding genes, 26 telomeres and 15 centromeres.
Guochun Zhao   +14 more
wiley   +1 more source

Quantitative characterization of pore structure of several biochars with 3D imaging

open access: yes, 2017
Pore space characteristics of biochars may vary depending on the used raw material and processing technology. Pore structure has significant effects on the water retention properties of biochar amended soils.
Hannula, Markus   +5 more
core   +1 more source

Tree regeneration responds more to shade casting by the overstorey and competition in the understorey than to abundance per se [PDF]

open access: yes, 2019
Manipulating the overstorey is the key tool for forest managers to steer natural regeneration. Opening up the canopy does not only create favourable light conditions for tree seedling growth, but also for (competitive) understorey species.
Baeten, Lander   +3 more
core   +1 more source

Macronutrient composition in pollen affects development and survival in wild bees

open access: yesPhysiological Entomology, EarlyView.
Small carpenter bees (Ceratina calcarata) were reared on diets formulated with black poplar and dandelion pollen, while closely monitoring developmental metrics, lipid content and survival. Macronutrient analyses on both pollen types revealed dandelion pollen contained lower levels of protein, essential amino acids and several fatty acids, which ...
Khara W. Stephen, Sandra M. Rehan
wiley   +1 more source

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