Results 11 to 20 of about 273,082 (188)

Canalized to heat, plastic to cold: adaptive coordination of leaf and seed strategies in populations spanning an elevational gradient. [PDF]

open access: yesNew Phytol
Summary In tropical mountains, surviving temperature extremes demands finely tuned strategies. We investigated how populations of the bromeliad Pitcairnia flammea across a 2200 m elevational gradient balance genetic canalization and plasticity, and whether thermal strategies are coordinated between seeds and leaves.
Chaves CJN   +17 more
europepmc   +2 more sources

Cones and consequences: the false dichotomy of conifers vs broad-leaves has critical implications for research and modelling. [PDF]

open access: yesNew Phytol
Summary In plant science research and modelling, particularly from the northern hemisphere, the terms ‘needle‐leaved’ and ‘conifer’ along with ‘broad‐leaved’ and ‘angiosperm’ are often used synonymously, creating the false dichotomy that conifers are needle‐leaved and angiosperms are broad‐leaved.
Johnson KM   +3 more
europepmc   +2 more sources

Seasonal and intracanopy shifts in the fates of absorbed photons in central Amazonian forests: implications for leaf fluorescence and photosynthesis. [PDF]

open access: yesNew Phytol
Summary Recent studies have shown a linear relationship between solar‐induced Chl fluorescence (SIF) and gross primary productivity (GPP) at large scales. However, this relationship diverges at finer leaf scales, particularly in tropical forests with complex canopy structures.
Ziccardi LG   +10 more
europepmc   +2 more sources

Development of a Four-Language Questionnaire to Investigate Environmental Risk Factors for the Development of Canine Atopic Dermatitis and to Monitor Disease Course and Progression. [PDF]

open access: yesVet Dermatol
Background: The chronic and multifactorial character of canine atopic dermatitis (cAD) often leads to poor disease control and treatment dissatisfaction. Environmental factors are likely to contribute to the disease development and may play a more important role than assumed previously.
Rhodius PC   +11 more
europepmc   +2 more sources

Biosynthesized Silver Nanoparticles Modulate Inflammation in a Palatine Wound Model. [PDF]

open access: yesClin Exp Dent Res
ABSTRACT Objectives This study aimed to compare the effects of silver nanoparticles (AgNPs) synthesized with Curcumin (Curcuma longa L.) or Açai (Euterpe oleracea) versus a commercial treatment and photobiomodulation in rat palatal wounds. Methods In vitro cell viability tests assessed nanoparticle toxicity. The animals were initially anesthetized, and
Guzzatti MFM   +12 more
europepmc   +2 more sources

Natural parasitism of the Citrus Leafminer (Lepidoptera: Gracillariidae) over eight years in seven citrus regions of São Paulo, Brazil [PDF]

open access: yes, 2015
The citrus leafminer (CLM) Phyllocnists citrella Stainton (Lepidoptera: Gracillariidae) was frst recorded in Brazil in 1996. In 1998, the parasitoid Ageniaspis citricola Logvinovskaya (Hymenoptera: Encyrtdae) was introduced and established in many ...
Diez PA   +12 more
core   +1 more source

Efeito do extrato aquoso de folhas verdes de nim (Azadirachta indica) e do horário de aplicação sobre o dano e o desenvolvimento larval de Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: noctuidae) na cultura do milho. [PDF]

open access: yes, 2017
O extrato aquoso de folhas de nim (Azadirachta indica) apresenta reconhecida atividade inseticida sobre a lagarta-do-cartucho, Spodoptera frugiperda (J.E. Smith, 1797).
RIBEIRO, P. E. de A., VIANA, P. A.
core   +1 more source

Acúmulo de forragem e características morfogênicas e estruturais de Megathyrsus maximus cv. Tamani sob intensidades de desfolhação

open access: yesPubvet, 2020
O efeito da intensidade de desfolhação (10, 20, 30 e 40 cm acima do solo) sobre a produção de forragem e características morfogênicas e estruturais de Megathyrsus maximus cv. Tamani foi avaliado nos cerrados de Roraima.
Newton de Lucena Costa   +7 more
doaj   +1 more source

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