concentration plant

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• Plant hormone — Plant hormones (also known as phytohormones) are chemicals that regulate plant growth. Plant hormones are signal molecules produced within the plant, and occur in extremely low concentrations. Hormones regulate cellular processes in targeted… …   Wikipedia

• Concentration 20 — Studio album by Namie Amuro Released July 24, 1997 …   Wikipedia

• Plant nutrition — is the study of the chemical elements that are necessary for plant growth. There are several principles that apply to plant nutrition.Some elements are essential, meaning that the absence of a given mineral element will cause the plant to fail to …   Wikipedia

• Concentration 20 — Album par Namie Amuro Sortie 24 juillet 1997 Enregistrement Complex Studio, Larrabee West, Record Plant Studios, Sony Music Studio, tk sequence 1105st Durée 56:17 Genre …   Wikipédia en Français

• Plant defense against herbivory — Poison ivy produces urushiol to protect the plant from herbivores. In humans this chemical produces an allergic skin rash, known as urushiol induced contact dermatitis …   Wikipedia

• plant — plantable, adj. plantless, adj. plantlike, adj. /plant, plahnt/, n. 1. any member of the kingdom Plantae, comprising multicellular organisms that typically produce their own food from inorganic matter by the process of photosynthesis and that… …   Universalium

• plant development — Introduction       a multiphasic process in which two distinct forms succeed each other in alternating generations. One form, created by the union of sexual cells (gametes (gamete)), contains two sets of similar chromosomes (diploid). At sexual… …   Universalium

• Plant sexuality — Close up of an Echinopsis spachiana flower, showing both carpels (only the styles and stigmas are visible) and stamens, making it a perfect flower. Plant sexuality covers the wide variety of sexual reproduction systems found across the plant… …   Wikipedia

• Plant tissue test — The nutrient content of a plant can be assessed by testing a sample of tissue from that plant. These tests are important in agriculture since fertilizer application can be fine tuned if the plants nutrient status is known. Nitrogen most commonly… …   Wikipedia

• plant growth substances — Substances that, at low concentration, influence plant growth and differentiation. Formerly referred to as plant hormones or phytohormones, these terms are now suspect because some aspects of the hormone concept , notably action at a distance… …   Dictionary of molecular biology

• Free-air concentration enrichment — FACE facility in the Nevada desert. Free Air Carbon dioxide Enrichment (FACE) is a method used by ecologists and plant biologists that raises the concentration of CO2 in a specified area and allows the response of plant growth to be measured.… …   Wikipedia