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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] |
Stellaria Media
''Stellaria media'', chickweed, is an annual flowering plant in the family Caryophyllaceae. It is native to Eurasia and naturalized throughout the world, where it is a weed of waste ground, farmland and gardens. It is sometimes grown as a salad crop or for poultry consumption. Description Chickweed is a hardy annual which flowers throughout the year in northern Europe, in mild weather. The stems are terete and glabrous with a lax and sprawling growth habit, up to long and in diameter, with a line (very occasionally 2 lines) of hairs running straight down its length, alternating sides at the nodes. The petioles are 5 to 8 mm long with hairy margins. The leaves are green, hairless, oval and opposite, long by wide with a hydathode at the tip. The flowers are small, less than 1 cm in diameter, with 5 white petals, 1–3 mm long, nestled inside the larger (3–5 mm long) sepals. These sepals have long, wavyvillous hairs on their outer (distal) sides and are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polygonaceae
The Polygonaceae are a Family (biology), family of flowering plants known Common name, informally as the knotweed family or smartweed—buckwheat family in the United States. The Botanical name, name is Basionym, based on the genus ''Polygonum'', and was first used by Antoine Laurent de Jussieu in 1789 in his book, ''Genera Plantarum''.Antoine Laurent de Jussieu. 1789. ''Genera plantarum: secundum ordines naturales disposita, juxta methodum in Horto regio parisiensi exaratam''. page 82. Herrisant and Barrois: Paris, France. (see ''External links'' below) The name may refer to the many swollen Node (botany), nodes the stems of some species have, being Etymology, derived from Greek language, Greek ( meaning and meaning or ). Alternatively, it may have a different origin, meaning 'many seeds'. The Polygonaceae comprise about 1200 speciesDavid J. Mabberley. 2008. ''Mabberley's Plant-Book'' third edition (2008). Cambridge University Press: UK. distributed into about 48 genera. The l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxalis
''Oxalis'' ( (British English) or (American English)) is a large genus of flowering plants in the wood-sorrel family, Oxalidaceae, comprising over 550 species. The genus occurs throughout most of the world, except for the polar areas; species diversity is particularly rich in tropical Brazil, Mexico, and South Africa. Many of the species are known as wood-sorrels (also as wood sorrels or woodsorrels) as they have an acidic taste reminiscent of the sorrel proper (''Rumex acetosa''), which is not closely related. Some species are called yellow sorrels or pink sorrels after the colour of their flowers instead. Other species are colloquially known as false shamrocks, and some called sourgrasses. For the genus as a whole, the term oxalises is also used. Description The plants are annual or perennial. The leaves are divided into three to ten or more obovate and top-notched leaflets, arranged palmately with all the leaflets of roughly equal size. The majority of species have three ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euphorbia
''Euphorbia'' is a large and diverse genus of flowering plants, commonly called spurge, in the family (biology), family Euphorbiaceae. Euphorbias range from tiny annual plants to large and long-lived trees, with perhaps the tallest being ''Euphorbia ampliphylla'' at or more. The genus has roughly 2,000 members, making it one of the List of the largest genera of flowering plants, largest genera of flowering plants. It also has one of the largest ranges of ploidy, chromosome counts, along with ''Rumex'' and ''Senecio''. ''Euphorbia antiquorum'' is the type species for the genus ''Euphorbia''. It was first described by Carl Linnaeus in 1753 in ''Species Plantarum''. Some euphorbias are widely available commercially, such as poinsettias at Christmas. Some are commonly cultivated as ornamentals, or collected and highly valued for the aesthetic appearance of their unique floral structures, such as the crown of thorns plant (''Euphorbia milii''). Succulent plant, Succulent euphorbi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clover
Clovers, also called trefoils, are plants of the genus ''Trifolium'' (), consisting of about 300 species of flowering plants in the legume family Fabaceae originating in Europe. The genus has a cosmopolitan distribution with the highest diversity in the temperate Northern Hemisphere, but many species also occur in South America and Africa, including at high altitudes on mountains in the tropics. They are small annual, biennial, or short-lived perennial herbaceous plants, typically growing up to tall. The leaves are trifoliate (rarely, they have more or fewer than three leaflets; the more (or fewer) leaflets the leaf has, the rarer it is; see four-leaf clover), with stipules adnate to the leaf-stalk, and heads or dense spikes of small red, purple, white, or yellow flowers; the small, few-seeded pods are enclosed in the calyx. Other closely related genera often called clovers include '' Melilotus'' (sweet clover) and '' Medicago'' (alfalfa or Calvary clover). As legume ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plantago
''Plantago'' is a genus of about 200 species of flowering plants in the family Plantaginaceae, commonly called plantains or fleaworts. The common name plantain is shared with the unrelated cooking plantain. Most are herbaceous plants, though a few are subshrubs growing to tall. Description The leaves are sessile or have a poorly defined petiole. They have three or five parallel veins that diverge in the wider part of the leaf. Leaves are broad or narrow, depending on the species. The inflorescences are borne on stalks typically tall, and can be a short cone or a long spike, with numerous tiny wind-pollinated flowers. Species The boundaries of the genus ''Plantago'' have been fairly stable, with the main question being whether to include '' Bougueria'' (one species from the Andes) and '' Littorella'' (2–3 species of aquatic plants).Albach, D. C., Meudt, H. M. & Oxelman, B. 2005Piecing together the "new" Plantaginaceae ''American Journal of Botany'' 92: 297–315. There a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kyllinga
''Kyllinga'' is genus of flowering plants in the sedge family known commonly as spikesedges. They are native to tropical and warm temperate areas of the world, especially tropical Africa. These sedges vary in morphology, growing to heights from 2.5 centimeters to a meter and sometimes lacking rhizomes. They are closely related to ''Cyperus'' speciesGovaerts, R. & Simpson, D.A. (2007). World Checklist of Cyperaceae. Sedges: 1-765. The Board of Trustees of the Royal Botanic Gardens, Kew. and sometimes treated as part of a more broadly circumscribed ''Cyperus''. The genus was named for the 17th century Danish botanist Peder Lauridsen Kylling. Species include: *'' Kyllinga brevifolia'' *''Kyllinga coriacea'' *'' Kyllinga erecta'' *'' Kyllinga exigua'' *'' Kyllinga gracillima'' *'' Kyllinga melanosperma'' *''Kyllinga nemoralis ''Kyllinga nemoralis'', the white water sedge or whitehead spikesedge, is a plant species in the sedge family, Cyperaceae. It is found in shaded meadows, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyperus
''Cyperus'' is a large genus of about 700 species of sedges, distributed throughout all continents in both tropical and temperate regions. Description They are annual or perennial plants, mostly aquatic and growing in still or slow-moving water up to deep. The species vary greatly in size, with small species only tall, while others can reach in height. Common names include ''papyrus sedges'', ''flatsedges'', ''nutsedges'', ''umbrella-sedges'', ''galingales'', and ''zozoro'' (from Malagasy). The stems are circular in cross-section in some, triangular in others, usually leafless for most of their length, with the slender grass-like leaves at the base of the plant, and in a whorl at the apex of the flowering stems. The flowers are greenish and wind-pollinated; they are produced in clusters among the apical leaves. The seed is a small nutlet. Ecology ''Cyperus'' species are eaten by the larvae of some Lepidoptera species, including ''Chedra microstigma''. They also provide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
