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Sulfentrazone
Sulfentrazone is the ISO common name for an organic compound used as a broad-spectrum herbicide. It acts by inhibiting the enzyme protoporphyrinogen oxidase. It was first marketed in the US in 1997 by FMC Corporation with the brand name Authority. History In 1985, scientists at FMC Corporation filed patents on a new class of herbicides containing a triazolinone ring. Sulfentrazone was subsequently developed for market under the code number F6285, with first sales in 1991 and achieving registration in the US in 1997, branded Authority. Other compounds now in the triazolinone class include amicarbazone and carfentrazone. Mechanism of action The effects visible on whole plants are chlorosis and desiccation caused by the inhibition of the enzyme protoporphyrinogen oxidase, which leads to an accumulation of protoporphyrin IX in the plant cells. This is a potent photosensitizer which activates oxygen, leading to lipid peroxidation. Both light and oxygen are required for this p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Organization For Standardization
The International Organization for Standardization (ISO ; ; ) is an independent, non-governmental, international standard development organization composed of representatives from the national standards organizations of member countries. Membership requirements are given in Article 3 of the ISO Statutes. ISO was founded on 23 February 1947, and () it has published over 25,000 international standards covering almost all aspects of technology and manufacturing. It has over 800 technical committees (TCs) and subcommittees (SCs) to take care of standards development. The organization develops and publishes international standards in technical and nontechnical fields, including everything from manufactured products and technology to food safety, transport, IT, agriculture, and healthcare. More specialized topics like electrical and electronic engineering are instead handled by the International Electrotechnical Commission.Editors of Encyclopedia Britannica. 3 June 2021.Inte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Environmental Protection Agency
The Environmental Protection Agency (EPA) is an independent agency of the United States government tasked with environmental protection matters. President Richard Nixon proposed the establishment of EPA on July 9, 1970; it began operation on December 2, 1970, after Nixon signed an executive order. The order establishing the EPA was ratified by committee hearings in the House and Senate. The agency is led by its administrator, who is appointed by the president and approved by the Senate. The current administrator is Lee Zeldin. The EPA is not a Cabinet department, but the administrator is normally given cabinet rank. The EPA has its headquarters in Washington, D.C. There are regional offices for each of the agency's ten regions, as well as 27 laboratories around the country. The agency conducts environmental assessment, research, and education. It has the responsibility of maintaining and enforcing national standards under a variety of environmental laws, in consultat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wild Onion
Wild onion can refer to * any uncultivated species in the genus ''Allium'', especially: **'' Allium bisceptrum'' ** ''Allium canadense'' ** ''Allium tricoccum'' ** '' Allium validum'' ** '' Allium vineale'' ** ''Allium ochotense'' * '' Asphodelus tenuifolius'' * '' Cyperus bulbosus'' * '' Bulbine semibarbata'' {{Plant common name See also *Wild garlic Plant species in the genus ''Allium ''Allium'' is a large genus of monocotyledonous flowering plants with around 1000 accepted species, making ''Allium'' the largest genus in the family Amaryllidaceae and among the largest plant genera in the wo ... Allium ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rumex Crispus
''Rumex crispus'', the curly dock, curled dock or yellow dock, is a perennial plant, perennial flowering plant in the family Polygonaceae, native to Europe and Western Asia. Description The plant produces an inflorescence or flower stalk that grows to high. It has smooth leaves shooting off from a large basal rosette, with distinctive waved or curled edges; these can grow to . On the stalk, flowers and seeds are produced in clusters on branched stems, with the largest cluster being found at the apex. The seeds are shiny, brown and encased in the sepal, calyx of the flower that produced them. This casing enables the seeds to float on water and get caught in wool and animal fur, and this helps the seeds spread to new locations. The root structure is a large, yellow, forking taproot. ''Rumex crispus'' has a number of subspecies with distinctive habitat preferences. ''R. crispus'' ssp. ''crispus'' occurs on waste and cultivated ground. ''R. crispus'' ssp. ''littoreus'' h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
