Results 61 to 70 of about 1,982 (192)

Risk assessment of Phlyctinus callosus for the EU

open access: yesEFSA Journal, Volume 22, Issue 7, July 2024.
Abstract Following a request from the European Commission, the EFSA Panel on Plant Health performed a quantitative risk assessment for the EU of Phlyctinus callosus (Coleoptera: Curculionidae), a polyphagous pest occurring in Australia, New Zealand and South Africa.
EFSA Panel on Plant Health (PLH)   +27 more
wiley   +1 more source

New insights into diffusion in 3D crowded media by Monte Carlo simulations: Effect of size, mobility and spatial distribution of obstacles [PDF]

open access: yes, 2017
Particle diffusion in crowded media was studied through Monte Carlo simulations in 3D obstructed lattices. Three particular aspects affecting the diffusion, not extensively treated in three-dimensional geometry, were analysed: the relative particle ...
Garcés, Josep Lluís   +5 more
core   +1 more source

Revisiting an ecophysiological oddity: Hydathode‐mediated foliar water uptake in Crassula species from southern Africa

open access: yesPlant, Cell &Environment, Volume 47, Issue 2, Page 460-481, February 2024.
Abstract Hydathodes are usually associated with water exudation in plants. However, foliar water uptake (FWU) through the hydathodes has long been suspected in the leaf‐succulent genus Crassula (Crassulaceae), a highly diverse group in southern Africa, and, to our knowledge, no empirical observations exist in the literature that unequivocally link FWU ...
Marc Fradera‐Soler   +5 more
wiley   +1 more source

Plantas silvestres ornamentales comercializadas en los mercados de la flor de Tenancingo y Jamaica, México [PDF]

open access: yes, 2010
En nuestro país se han adoptado todas aquellas especies ornamentales que son famosas en el mundo, incluyendo algunas representantes de México; sin embargo, todavía se tiene material genético ornamental con grandes posibilidades de insertase en el ...
LOPEZ SANDOVAL, JOSE ANTONIO   +5 more
core  

Physical Processes in Naked Singularity Formation [PDF]

open access: yes, 2002
Gravitational collapse is one of the most fruitful subjects in gravitational physics. It is well known that singularity formation is inevitable in complete gravitational collapse. It was conjectured that such a singularity should be hidden by horizons if
Chandrasekhar   +7 more
core   +3 more sources

Echeveria cerrograndensis A. Vazquez, sp. nov.

open access: yes, 2014
Echeveria cerrograndensis A.Vázquez & G. Nieves sp. nov. (Figures 1–4). Type:— MEXICO. Colima: Municipio Minatitlán, Lagunitas-El Terrero, 19°25’8.79’’N, 103°55’7.07’’W, 2200 m, 19 February 2005 (fl, fr), G . Nieves Hernández, Miguel Cházaro, Julia Etter, Raúl López, Ignacio Contreras s.n. (holotype IBUG).
Nieves-Hernández, Gregorio   +3 more
openaire   +1 more source

Identificación de plantas de crecimiento espontáneo encontradas en techos de las localidades de Bosa y La Candelaria (Bogotá, Colombia) y su posible uso en diseño de techos verdes [PDF]

open access: yes, 2014
El objetivo de esta investigación fue reconocer la riqueza y abundancia de especies de plantas de crecimiento espontáneo en los techos de viviendas de las localidades de La Candelaria y Bosa, ciudad de Bogotá, igualmente reconocer su posible uso en el ...
Cortes Clavijo, Ana Maria
core  

Una especie nueva de Echeveria (Crassulaceae) del estado de Guanajuato (México)

open access: yesActa Botanica Mexicana, 1997
Se describe Echeveria calderoniae como especie nueva para la ciencia, a partir de plantas rocedentes de la región noroccidental del estado de Guanajuato, México.
Emmanuel P\u00E9rez C\u00E1lix
doaj  

Abnormal flowers and pattern formation in floral [PDF]

open access: yes, 1989
“From our acquaintance with this abnormal enabled to unveil the secrets that normal us, and to see distinctly what, from the regular we can only infer.” - J. W.
Bowman, John L.   +2 more
core  

Echeveria marianae I. Garcia & Costea 2014, sp. nov.

open access: yesPhytotaxa, 2014
Echeveria marianae I. García & Costea, sp. nov., Figs. 1–2. Type:— MÉXICO. Jalisco: Municipio de Valle de Juárez, Barranca del Ojo de Agua al este de Mazamitla, 2460 m, bosque de encino-pino con elementos de bosque mesófilo de montaña; 29 Augusto 2013, I. García & M. Costea 8732 (holotype CIMI! isotypes; DAO!, ENCB!, IEB!, MEXU!, MICH!).
García-Ruiz, Ignacio, Costea, Mihai
openaire   +3 more sources

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