Results 61 to 70 of about 56,650 (181)

Desarrollo vegetativo y fenología del Mamón (Carica papaya L.) bajo dos condiciones de cultivo [PDF]

open access: yes, 2016
La región NEA cuenta con zonas aptas para el cultivo de mamón, sin embargo las condiciones durante el invierno hacen que estos cultivos sean destinados principalmente a la industria.
Alayón Luaces, Paula   +3 more
core   +2 more sources

Contrast in Mycorrhizal Associations Leads to Divergent Rhizosphere Metabolomes and Plant–Soil Feedback Among Grassland Species

open access: yesEcology Letters, Volume 29, Issue 2, February 2026.
Most terrestrial plants are colonised by arbuscular mycorrhizal fungi but vary in the degree to which they benefit from and depend on these fungi. Here we show that plants can make the interaction with mycorrhizal fungi more beneficial to themselves by regulating the chemical composition of organic compounds released by plant roots into the soil ...
Marina Semchenko   +8 more
wiley   +1 more source

The frequency and importance of polyploidy in tropical rainforest tree radiations

open access: yesNew Phytologist, Volume 249, Issue 4, Page 2103-2114, February 2026.
Summary The presence of more than two copies of the genome in an organism, termed ‘polyploidy’, is a crucial force in plant evolution, generating genetic, phenotypic and ecological diversity. [Correction added on 22 January 2026, after first online publication: the preceding sentence has been corrected.] The Amazonian tree flora is the most species ...
Rowan J. Schley   +9 more
wiley   +1 more source

Caracterización morfológica de 144 accesiones de Tadehagi triquetrum

open access: yesActa Agronómica, 2010
Se realizó la caracterización morfológica de 114 accesiones de Tadehagi triquetrum provenientes de Tailandia, Vietnam, China, Indonesia y Papúa Nueva Guinea.
Carlos Augusto Martínez Mamián   +2 more
doaj   +2 more sources

New records and additions to the hepatic flora of Uganda 2 [PDF]

open access: yes, 1999
82 liverwort taxa are recorded from Uganda, of which 24 are new to the flora of the country. Colura hedbergiana, Colura kilimanjarica and Harpalejeunea fischeri found on Mt. Elgon, were previously known only from their type locality on Mt. Kilimanjaro or
Arnstein Lye, Kåre, Pócs, Tamás
core  

Does the abiotic environment influence the distribution of flower and fruit colors?

open access: yesAmerican Journal of Botany, Volume 113, Issue 1, January 2026.
Abstract Premise Color in flowers and fruits carries multiple functions, from attracting animal partners (pollinators, dispersers) to mitigating environmental stress (cold, drought, UV‐B). With research historically focusing on biotic interactions as selective agents, however, it remains unclear whether abiotic stressors impact flower and fruit colors ...
Agnes S. Dellinger   +3 more
wiley   +1 more source

A mosaic of colors: The influence of biotic and abiotic factors shaping flower color diversity across a tropical mountain ecosystem

open access: yesAmerican Journal of Botany, Volume 113, Issue 1, January 2026.
Abstract Premise Flower color diversity within communities is shaped by biotic and abiotic factors. Pollinators often prefer specific colors, and floral pigments also help protect against abiotic factors such as ultraviolet (UV) radiation, precipitation, and temperature.
Maria Gabriela Gutierrez Camargo   +4 more
wiley   +1 more source

Vertical Stratification Drives Divergent Spatial Trade‐Offs Among Xylem Cell Types in Angiosperm Trees of a Mountain Forest in Eastern China

open access: yesEcology and Evolution, Volume 16, Issue 1, January 2026.
To understand how vertical forest stratification influences xylem functional balance, we measured vessel, fiber, and parenchyma fractions across 39 tree species in eastern China. Key trade‐offs exist between vessel‐fiber and parenchyma‐fiber fractions.
Qihang Yang   +6 more
wiley   +1 more source

The National Criteria for Evacuation Decision-Making in Nursing Homes [PDF]

open access: yes, 2008
Explains the key factors nursing home administrators and healthcare workers must consider in deciding whether to evacuate patients or to shelter them in place during natural disasters.

core  

Movement Strategies of Neotropical Nectarivorous Birds: Insights From High‐Andean Hummingbirds and Flowerpiercers

open access: yesBiotropica, Volume 58, Issue 1, January 2026.
Nectar is a highly variable, mostly unpredictable resource in tropical mountains. How do nectarivorous birds such as this male Great Sapphirewing cope? Fine‐scaled tracking of hummingbirds and flowerpiercers shows flexibility in daily movement strategies in the high Andes, possibly in response to fluctuating local conditions such as weather and ...
Cristina Rueda‐Uribe   +9 more
wiley   +1 more source

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