Results 21 to 30 of about 1,427,945 (167)

Structural and compositional dimensions of phytochemical diversity in the genus Piper reflect distinct ecological modes of action

open access: yesJournal of Ecology, Volume 110, Issue 1, Page 57-67, January 2022., 2022
Crude extract 1H NMR diversity synthesizes the compositional diversity and structural complexity of phytochemical mixtures. Plants can develop chemical diversity through different combinations of structural and compositional biosynthetic mechanisms; thus, methods incorporating both dimensions of phytochemical diversity can provide new theoretical ...
Casey S. Philbin   +4 more
wiley   +1 more source

Variation in biomass allocation and root functional parameters in response to fire history in Brazilian savannas

open access: yesJournal of Ecology, Volume 109, Issue 12, Page 4143-4157, December 2021., 2021
Fire stimulated the increase of absorptive root biomass in the upper soil layer in response to the higher demand for below‐ground resources, but did not promote modification of morphological root parameters. Differences in morphological root parameters reflected variation in soil properties, especially soil P, as well as differences in graminoid ...
Soizig Le Stradic   +4 more
wiley   +1 more source

Physicochemical characteristics of organic honey samples of africanized honeybees from Paraná River islands. [PDF]

open access: yes, 2011
This research was carried out to evaluate the physicochemical composition of organic honey in Paraná River islands, in Porto Brasílio, State of Paraná. Honey was harvested directly from super of the colonies in three apiaries spread in the Floresta and ...
Neves, Carolina Antunes   +21 more
core   +1 more source

Características químicas del suelo de un área rehabilitada y su relación con la vegetación y avifauna presente en una mina de ferroníquel, Montelíbano – Córdoba, Colombia

open access: yes, 2021
La práctica de la minería a cielo abierto es una de las actividades que más genera impactos en el suelo, pues se trata de una actividad que elimina generalmente todos los compartimentos que sustentan la vida en este y ocasiona fuertes cambios en su ...
Mendoza Macea, Heyda Lenis
core   +1 more source

Características morfológicas e químicas de lâminas foliares de Paspalum spp. [PDF]

open access: yes, 2018
O objetivo deste trabalho foi avaliar o potencial de utilização de lâminas foliares da gramí­nea tropical Paspalum spp. para o consumo animal por meio das características morfofisiológicas, da anatomia quantitativa e das características químicas.
Beatriz Lempp   +2 more
core   +1 more source

Assessing contributions of deterministic versus stochastic processes to local species assembly: A field experiment with annual plant‐dominated communities in gypsum systems

open access: yesJournal of Ecology, Volume 114, Issue 3, March 2026.
In this study, we experimentally show that stochasticity can play prominent roles in driving local species assembly in annual plant‐dominated communities of semiarid gypsum ecosystems. Drylands are traditionally viewed as restrictive environments that impose strong deterministic filtering effects, but neutral events can also contribute decisively to ...
Laura Ortiz   +3 more
wiley   +1 more source

Proposta para o mecanismo de expansão do polvilho azedo com base nas características físico químicas [PDF]

open access: yes, 2012
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Programa de Pós-Graduação em Ciência dos Alimentos, Florianópolis, 2009.O amido de mandioca fermentado (polvilho azedo) pode ser considerado um amido modificado ...
Marcon, Maria Janete Angeloni
core  

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

Seleção de progênies de maracujazeiro-amarelo (Passiflora edulis f. flavicarpa) quanto à qualidade de frutos [PDF]

open access: yesRevista Brasileira de Fruticultura, 2003
Para garantir a sustentabilidade da cultura do maracujazeiro, na Amazônia, é imprescindível realizar pesquisas que busquem o desenvolvimento de cultivares tolerantes às principais doenças e que apresentem frutos com boas características agroindustriais ...
Walnice Maria Oliveira do Nascimento   +4 more
doaj   +1 more source

Efeito da composição química básica e ingredientes nas características físico-químicas de mortadela de frango [PDF]

open access: yes, 2015
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Química, Florianópolis, 2015.A indústria de carnes tem buscado exaustivamente produtos de qualidade, característica relacionada ...
Luiz, Andre Henrique Marques
core  

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