radiación fotosintéticamente activa

radiación fotosintéticamente activa

That portion of the electromagnetic spectrum that is the energy source utilized for photosynthesis and generally coincides with the visible light spectrum (approximately 400-700 nm). PAR is characterized by the greater absorption of the blue light and red light wavelengths by pigments.

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Izboljšaj

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Besedna vrsta: noun
Sinonim(-i):
Blossary:
Industrija/področje: Agriculture
Category: General agriculture
Company: USDA
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radiación

Energy; Nuclear energy

Partículas (alfa, beta, neutrones) o rayos (gama) emitidos del núcleo de un átomo radioactivo inestable como resultado de la descomposición radioactiva.

radiación

Lights & lighting; Lighting products

A general term for the release of energy in a "wave" or "ray" form. All light is radiant energy or radiation, as is heat, UV, microwaves, radio waves, etc.

radiación

Weather; General weather

El proceso por el cual la energía se propaga a través de cualquier medio por virue del movimiento de las ondas de ese medio. La radiación electromagnética que emite calor y la ...

radiación

Chemistry; General chemistry

Energía en forma de fotones.

radiación

Mobile communications; Mobile phones

La emisión y transmisión de energía a través del espacio o a través de un medio material.

antihelmínticos

Agriculture; General agriculture

Agents destructive to parasitic worms. They are used therapeutically in the treatment of infestation with parasitic worms of the helminth class, in humans and animal.

antígenos de superficie

Agriculture; General agriculture

Antigens on surfaces of cells, including infectious or foreign cells or viruses. They are usually protein-containing groups on cell membranes or walls.

antígenos de neoplasias

Agriculture; General agriculture

Proteins, glycoprotein, or lipoprotein moieties on surfaces of tumor cells that are usually identified by monoclonal antibodies. Many of these are of either embryonic or viral ...

antígenos de histocompatibilidad

Agriculture; General agriculture

A group of antigens that includes both the major and minor histocompatibility antigens. The former are genetically determined by the major histocompatibility complex. They ...

antígeno nuclear de célula proliferativa

Agriculture; General agriculture

Nuclear antigen with a role in DNA synthesis, DNA repair, and cell cycle progression. PCNA is required for the coordinated synthesis of both leading and lagging strands at the ...

anticonceptivos

Agriculture; General agriculture

Agents, devices, methods, or procedures which diminish the likelihood of or prevent conception.

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Industrija/področje: Sports Category: Basketball

pelota muerta

(basketball term) any ball that is not live; occurs after each successful field goal or free-throw attempt, after any official's whistle or if the ...