Results 1 to 10 of about 511 (113)

The role of nutritional impairment in carbon-water balance of silver fir drought-induced dieback. [PDF]

open access: yesGlob Chang Biol, 2022
Declining silver fir trees show lower foliar concentrations of essential nutrients such as P, K, Cu and Ni than non‐declining trees. This nutritional impairment exacerbates and amplifies the negative effects of drought on tree functioning and growth, considering the relationship of tree nutritional status with water‐use efficiency and growth resilience
González de Andrés E   +7 more
europepmc   +2 more sources

Communities of endophytic fungi in a Puerto Rican rainforest vary along a gradient of disturbance due to Hurricane Maria. [PDF]

open access: yesEcol Evol, 2022
Even more than a year after the catastrophic passage of Hurricane Maria, communities of endophytic symbionts in a Puerto Rican rainforest bear a signature of forest disturbance. Abstract Increases in the frequency and intensity of hurricanes influence the structure, function, and resilience of Caribbean forests.
Colón Carrión N, Troche CL, Arnold AE.
europepmc   +2 more sources

Patterns of leaf trait variation underlie ecological differences among sympatric tree species of Damburneya in a tropical rainforest. [PDF]

open access: yesAm J Bot, 2022
Abstract Premise Although ecological differentiation driven by altitude and soil is hypothesized to promote coexistence of sympatric tree species of Damburneya (Lauraceae), the mechanistic role of leaf functional variation on ecological differentiation among co‐occurring species remains unexplored.
Giraldo-Kalil LJ   +3 more
europepmc   +2 more sources

Foliar spectral signatures reveal adaptive divergence in live oaks (Quercus section Virentes) across species and environmental niches. [PDF]

open access: yesNew Phytol
Summary Genomic tools have advanced our understanding of species and population structure, but distinguishing neutral from adaptive evolution remains challenging due to limited methods for measuring a broad spectrum of phenotypic traits. We used spectroscopic data from preserved leaves to test for adaptive divergence among populations of live oaks ...
Hernández-Leal MS   +3 more
europepmc   +2 more sources

Pest categorisation of <i>Neoscytalidium dimidiatum</i>. [PDF]

open access: yesEFSA J, 2023
Abstract The EFSA Plant Health Panel performed a pest categorisation of Neoscytalidium dimidiatum, a clearly defined plant pathogenic fungus of the family Botryosphaeriaceae. The pathogen affects a wide range of woody perennial crops and ornamental plants causing symptoms such as leaf spot, shoot blight, branch dieback, canker, pre‐ and post‐harvest ...
EFSA Panel on Plant Health (PLH)   +24 more
europepmc   +2 more sources

Histologic, metabolomic, and transcriptomic differences in fir trees from a peri-urban forest under chronic ozone exposure. [PDF]

open access: yesEcol Evol
Urbanization alters ecosystems and evolutionary processes. Processes like air pollution by tropospheric ozone contribute to the decline of urban and peri‐urban ecosystems, such as Abies religiosa forests in the peripheral mountains southwest of Mexico City.
Reyes-Galindo V   +10 more
europepmc   +2 more sources

Intervalo crítico de nitrógeno y época de muestreo en Coffea canephora en suelos Cambisoles

open access: yesAgronomía Mesoamericana, 2023
Introducción. La introducción comercial de Coffea canephora en Cuba ocurrió en 1930. Se han realizado investigaciones sobre los requerimientos de fertilizante nitrogenado, pero no han incluido el análisis foliar como criterio para el diagnóstico del ...
Alberto Pérez-Díaz   +3 more
doaj   +1 more source

Dinámica del crecimiento en los cultivares de caña de azúcar C97-366 y C99- 374, con fines forrajeros

open access: yesAgrisost, 2021
Contexto: El análisis de crecimiento vegetal, es una herramienta de gran valor para conocer la formación y acumulación de biomasa. La determinación de índices de crecimiento posibilita identificar las adaptaciones en las plantas a diferentes condiciones ...
Yoslén Fernández Gálvez   +5 more
doaj   +3 more sources

Respuesta del café a la fertilización con zinc en suelos de la zona cafetera colombiana

open access: yesEntramado, 2021
Aunque el zinc (Zn) es un microelemento esencial para la nutrición del café por su efecto directo sobre el crecimiento y porque sus deficiencias en las etapas vegetativas son cada vez más comunes, son pocas las investigaciones relacionadas con este ...
Alveiro Salamanca-Jimenez   +2 more
doaj   +1 more source

Efecto nutricional foliar de silicio para el cultivo de banano (Musa spp.) en Ecuador

open access: yesAgronomía Costarricense, 2023
Introducción. El silicio en banano (Musa spp.) y su nivel crítico al ser aplicado de forma foliar es poco conocido. Por ello, en la presente investigación se propuso como hipótesis que la aplicación foliar de dosis frecuente de ácido monosilicico (SiOH4)
Jean Sanmartín-Galván   +4 more
doaj   +1 more source

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