Results 81 to 90 of about 43,753 (227)

Avaliação técnica e econômica da produção de duas cultivares de alface tipo crespa em função de lâminas de irrigação Technical and economical evaluation of the production of two crisped type lettuce cultivars as a function of irrigation depths

open access: yesCiência e Agrotecnologia, 2008
Objetivou-se, com o presente trabalho, a avaliação técnica e econômica da produção de duas cultivares de alface tipo crespa em função de lâminas de irrigação, cultivadas sob ambiente protegido, na região de Lavras, MG. O experimento foi instalado em casa
Renato Carvalho Vilas Boas   +5 more
doaj   +1 more source

New Method for Simultaneous Determination of Microcystins and Cylindrospermopsin in Vegetable Matrices by SPE-UPLC-MS/MS [PDF]

open access: yes, 2018
Cyanotoxins are a large group of noxious metabolites with different chemical structure and mechanisms of action, with a worldwide distribution, producing effects in animals, humans, and crop plants.
Cameán Fernández, Ana María   +7 more
core   +1 more source

Mars Regolith Simulant Ameliorated by Compost as In Situ Cultivation Substrate Improves Lettuce Growth and Nutritional Aspects [PDF]

open access: yes, 2020
Heavy payloads in future shuttle journeys to Mars present limiting factors, making self-sustenance essential for future colonies. Therefore, in situ resources utilization (ISRU) is the path to successful and feasible space voyages.
Adamo, P.   +11 more
core   +1 more source

Revisiting the relationship between stomatal size and speed across species – a meta‐analysis

open access: yesNew Phytologist, Volume 249, Issue 5, Page 2338-2354, March 2026.
Summary The rate of stomatal opening and closure in response to changes in light affects leaf photosynthesis and water use. However, it is unclear how strongly stomatal size (SS) and density (SD) influence stomatal conductance (gs) kinetics, and whether variation arises from methodological differences, guard cell type or degree of amphistomaty.
Nik Woning   +31 more
wiley   +1 more source

Pruebas de ecotoxicidad para establecer el potencial genotóxico del hipoclorito de sodio, mediante bulbos de cebolla Allium cepa L y semillas de lechuga Lactuca Sativa L como bioindicadores

open access: yesIteckne, 2011
Se realizan pruebas de toxicidad mediante bulbos de cebolla (Allium cepa) y se confrontan los resultados con la prueba en semillas de lechuga (Lactuca sativa), bioindicador reconocido internacionalmente según la OECD.
Ricardo Restrepo Manrique   +2 more
doaj   +1 more source

Germplasm identification of bean ( Phaseolus vulgaris L.) and lettuce ( Lactuca sativa L.) resistant to avirulent populations of Meloidogyne spp. to Mi gene [PDF]

open access: yes, 2017
Phytoparasitic nematodes of the genus Meloidogyne spp. are the cause of important losses in horticulture. In recent years, plant resistance has been used to reduce this damage in a sustainable way.
Sanz Prieto, Anna
core  

Virtual Screening of Phytochemicals From Medicinal Plants as Promising PDE5 Inhibitors Against Erectile Dysfunction

open access: yesFood Science &Nutrition, Volume 14, Issue 2, February 2026.
Phytochemicals from Algerian medicinal plants were virtually screened as potential phosphodiesterase‐5 (PDE5) inhibitors for erectile dysfunction therapy. Drug‐likeness and toxicity analyses identified catechin, ellagic acid, and rosmarinic acid as safe, bioavailable candidates.
Farouk Boudou   +7 more
wiley   +1 more source

Effects of Phytoplasma Infection on Aster Leafhopper (Macrosteles quadrilineatus) Settling Behavior and Development on Brassica napus

open access: yesEntomologia Experimentalis et Applicata, Volume 174, Issue 2, Page 132-141, February 2026.
Aster yellows phytoplasma (AYp) infection alters host plant preference in aster leafhoppers (Macrosteles quadrilineatus), with infected vectors showing a significant preference for AYp‐infected canola (Brassica napus) early in the infection period. However, this preference fades as infection progresses. Despite early attraction, B.
Jeremy R. Irvine   +2 more
wiley   +1 more source

Concentração de urânio em plantas desenvolvidas em solos agrícolas e de escombreira da área mineira da Cunha Baixa (Mangualde) Uranium concentration in plants developed on agricultural soils and waste dumps in Cunha Baixa mine site (Mangualde)

open access: yesRevista de Ciências Agrárias, 2010
Neste trabalho avalia-se e comparara-se a concentração e capacidade de bioconcentra­ção (CB) do urânio em diversas espécies vegetais (parte aérea) que se desenvolveram em solos de escombreira (Pinus pinaster, Cytisus striatus, Cytisus multiflorus) e ...
O. Neves, M.M. Abreu
doaj  

Effect of the anode material, applied current and reactor configuration on the atenolol toxicity during an electrooxidation process

open access: yesHeliyon
Atenolol (ATL) is a beta-blocker pharmaceutical product which is excreted mainly unchanged and may represent a long-term risk for organisms present in the sea and in fresh water.
M.T. Montañés   +4 more
doaj   +1 more source

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