Results 21 to 30 of about 3,861 (180)

Responses of Seeds of Pinus taeda & P. strobus to Light [PDF]

open access: yesPlant Physiology, 1962
Seeds of loblolly pine, Pinus taeda L., and of white pine, P. strobtus L., which require a long moist treatment at a low temperature (stratification) for complete germination, were chosen for this study. Seeds of the former species require 30 to 90 days at 2 to 3 C and those of the latter 30 days at 10 C or 60 days at 4 C (27).
Vivian K. Toole   +3 more
openaire   +2 more sources

Produção de compensados de Pinus taeda L. E Pinus oocarpa Schiede com diferentes formulações de adesivo uréia formaldeído Plywood manufacturing from Pinus elliottii L. and Pinus oocarpa Schiede with different formulations of the urea-formaldheyde resin

open access: yesRevista Árvore, 2002
Este trabalho teve como objetivo avaliar a qualidade de painéis compensados de Pinus taeda e de Pinus oocarpa, com 20 e 24 anos de idade, respectivamente, utilizando três diferentes formulações de adesivo uréia-formaldeído.
Setsuo Iwakiri   +4 more
doaj   +1 more source

Effect of service temperature on shear strength of Pinus wood for roof structures

open access: yesActa Scientiarum: Technology, 2018
Temperature in timber roof trusses structures can reach 60°C and significantly affect wood strength, compromising the structural mechanical performance.
Tiago Hendrigo de Almeida   +5 more
doaj   +1 more source

Evaluation of the Pinus taeda quality using ultrasound [PDF]

open access: yes2013 IEEE International Ultrasonics Symposium (IUS), 2013
The pinus is a type of wood that is widely used as feedstock for the production of softwood pulp and higher quality paper, boards, MDF (Medium Density Fiberboard), OSB (Oriented Standard Board), plywood, furniture and others. The main problem for the pinus is the attack by the wood wasps (Sirex noctilio F., 1793) (Hymenoptera; Siricidae) that damages ...
Ozana Maria de Andrade Maia   +7 more
openaire   +1 more source

Avaliação da Dispersão de Sementes de Pinus taeda L. pela Análise dos Anéis de Crescimento de Árvores de Regeneração Natural

open access: yesFloresta e Ambiente
RESUMO As árvores de Pinus taeda – introduzidas no Brasil em 1880 e em ensaios experimentais em 1936 – têm sido relacionadas na literatura especializada ao processo de invasão biológica de algumas áreas de campos gerais e de altitude dos estados do ...
Mario Tomazello Filho   +9 more
doaj   +1 more source

Wild Pigs (Sus scrofa) Stand Their Ground: Investigating Flight Response, or Lack Thereof, to Perceived Predation Risk 野猪坚守原地:探究其面对感知捕食风险时的逃逸反应 (或无逃逸行为)

open access: yesWildlife Letters, EarlyView.
We used automated behavioral response systems (ABRs) to assess invasive wild pig (Sus scrofa) behavioral response to four auditory playbacks: humans, coyote vocalizations (Canis latrans), pigs in distress, and barred owl (Strix varia) calls. Wild pigs had a significant flight response to human playbacks, but 68% of pigs did not flee.
Justine L. Smith   +2 more
wiley   +1 more source

Detection of pine woodwasp in Pinus taeda in São Paulo State, Brazil

open access: yesCiência Rural, 2018
: The woodwasp Sirex noctilio (Fabricius) (Hymenoptera: Siricidae) is one of the main pests of Pinus plantations in South America. The aim of this study is to report the occurrence of S. noctilio in Pinus taeda in Botucatu, São Paulo, Brazil. The surveys
Carlos Frederico Wilcken   +3 more
doaj   +1 more source

Wild pigs (Sus scrofa) prefer inoculated peanuts over whole‐kernel corn in cafeteria‐style study

open access: yesWildlife Society Bulletin, EarlyView.
In this study, we explored bait preference of wild pigs (Sus scrofa), a highly invasive species where primary removal efforts include the use of bait and corral‐style trapping. In addition, we investigated preferences of a common nontarget to identify a bait that is preferred by wild pigs and not by white‐tailed deer (Odocoileus virginianus).
Justine L. Smith   +5 more
wiley   +1 more source

From glacial echoes to timber pathways: Climatic–historical drivers and timber‐trade influence on the phylogeography of Ips sexdentatus in the Basque Country

open access: yesAgricultural and Forest Entomology, EarlyView.
Ips sexdentatus is expanding across southern Europe, attacking multiple Pinus species and showing the ability to colonize trees at early stages of decline. Genetic analysis of 668 individuals revealed 106 haplotypes, with Iberian populations as diversity hotspots, reflecting long‐term refugial persistence alongside more recent demographic expansion ...
Dimitrios N. Avtzis   +4 more
wiley   +1 more source

Weed Control Increases the Growth and Above-Ground Biomass Production of Pinus taeda Plantations in Southern Brazil

open access: yesAgrochemicals
Pinus taeda plantations have been facing declining productivity in South America, especially due to competition for natural resources such as light, water, and nutrients.
Matheus Severo de Souza Kulmann   +3 more
doaj   +1 more source

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