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Mango Tree
''Mangifera indica'', commonly known as mango, is a species of flowering plant in the family Anacardiaceae. It is a large fruit tree, capable of growing to a height of . There are two distinct genetic populations in modern mangoesthe "Indian type" and the "Southeast Asian type". Description It is a large green tree, valued mainly for its fruits, both green and ripe. Approximately 500 varieties have been reported in India. It can grow up to tall with a similar crown width and a trunk circumference of more than . The leaves are simple, shiny and dark green. Red-yellow flowers appear at the end of winter, and also at the beginning of spring. Both male and female flowers are borne on same tree. Climatic conditions have a significant influence on the time of flowering. In South Asia, flowering starts in December in the south, in January in Bihar and Bengal, in February in eastern Uttar Pradesh, and in February–March in northern India. The duration of flowering is 20–25 days for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Linnaeus
Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, the modern system of naming organisms. He is known as the "father of modern taxonomy". Many of his writings were in Latin; his name is rendered in Latin as and, after his 1761 ennoblement, as . Linnaeus was born in Råshult, the countryside of Småland, in southern Sweden. He received most of his higher education at Uppsala University and began giving lectures in botany there in 1730. He lived abroad between 1735 and 1738, where he studied and also published the first edition of his ' in the Netherlands. He then returned to Sweden where he became professor of medicine and botany at Uppsala. In the 1740s, he was sent on several journeys through Sweden to find and classify plants and animals. In the 1750s and 1760s, he continued to collect an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern India
North India is a loosely defined region consisting of the northern part of India. The dominant geographical features of North India are the Indo-Gangetic Plain and the Himalayas, which demarcate the region from the Tibetan Plateau and Central Asia. The term North India has varying definitions. The Ministry of Home Affairs in its Northern Zonal Council Administrative division included the states of Haryana, Himachal Pradesh, Punjab and Rajasthan and Union Territories of Chandigarh, Delhi, Jammu and Kashmir and Ladakh. The Ministry of Culture in its ''North Culture Zone'' includes the state of Uttarakhand but excludes Delhi whereas the Geological Survey of India includes Uttar Pradesh and Delhi but excludes Rajasthan and Chandigarh. Other states sometimes included are Bihar, Gujarat, Jharkhand, Madhya Pradesh and West Bengal. North India has been the historical centre of the Mughal Empire, the Delhi Sultanate and the British Indian Empire. It has a diverse culture, and includ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poison Oak '' or Atlantic poison oak, found in the southeastern United States
{{plant common name ...
Poison oak refers to two plant species in the genus ''Toxicodendron,'' both of which can cause skin irritation: *''Toxicodendron diversilobum'' or Western poison oak, found in western North America *''Toxicodendron pubescens ''Toxicodendron pubescens'' (syn. ''Rhus pubescens''), commonly known as Atlantic poison oak, is an upright shrub that can grow to 1 metre (3 feet) tall. Its leaves are 15 centimetres (6 inches) long, alternate, with three le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Contact Dermatitis
Contact dermatitis is a type of acute or chronic inflammation of the skin caused by exposure to chemical or physical agents. Symptoms of contact dermatitis can include itchy or dry skin, a red rash, bumps, blisters, or swelling. These rashes are not contagious or life-threatening, but can be very uncomfortable. Contact dermatitis results from either exposure to allergens (allergic contact dermatitis), or irritants (irritant contact dermatitis). Allergic contact dermatitis involves a delayed type of hypersensitivity and previous exposure to an allergen to produce a reaction. Irritant contact dermatitis is the most common type and represents 80% of all cases. It is caused by prolonged exposure to irritants, leading to direct injury of the epidermal cells of the skin, which activates an immune response, resulting in an inflammatory cutaneous reaction. Phototoxic dermatitis occurs when the allergen or irritant is activated by sunlight. Diagnosis of allergic contact dermatitis can o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soil PH
Soil pH is a measure of the acidity or basicity (alkalinity) of a soil. Soil pH is a key characteristic that can be used to make informative analysis both qualitative and quantitatively regarding soil characteristics. pH is defined as the negative logarithm (base 10) of the activity of hydronium ions ( or, more precisely, ) in a solution. In soils, it is measured in a slurry of soil mixed with water (or a salt solution, such as ), and normally falls between 3 and 10, with 7 being neutral. Acid soils have a pH below 7 and alkaline soils have a pH above 7. Ultra-acidic soils (pH 9) are rare. Soil pH is considered a master variable in soils as it affects many chemical processes. It specifically affects plant nutrient Plant nutrition is the study of the chemical elements and compounds necessary for plant growth and reproduction, plant metabolism and their external supply. In its absence the plant is unable to complete a normal life cycle, or that the element i ... ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bangladesh
Bangladesh (}, ), officially the People's Republic of Bangladesh, is a country in South Asia. It is the eighth-most populous country in the world, with a population exceeding 165 million people in an area of . Bangladesh is among the most densely populated countries in the world, and shares land borders with India to the west, north, and east, and Myanmar to the southeast; to the south it has a coastline along the Bay of Bengal. It is narrowly separated from Bhutan and Nepal by the Siliguri Corridor; and from China by the Indian state of Sikkim in the north. Dhaka, the capital and largest city, is the nation's political, financial and cultural centre. Chittagong, the second-largest city, is the busiest port on the Bay of Bengal. The official language is Bengali, one of the easternmost branches of the Indo-European language family. Bangladesh forms the sovereign part of the historic and ethnolinguistic region of Bengal, which was divided during the Partition of India in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myanmar
Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John C. Wells, John Wells explains, the English spellings of both Myanmar and Burma assume a non-rhotic variety of English, in which the letter r before a consonant or finally serves merely to indicate a long vowel: [ˈmjænmɑː, ˈbɜːmə]. So the pronunciation of the last syllable of Myanmar as [mɑːr] or of Burma as [bɜːrmə] by some speakers in the UK and most speakers in North America is in fact a spelling pronunciation based on a misunderstanding of non-rhotic spelling conventions. The final ''r'' in ''Myanmar'' was not intended for pronunciation and is there to ensure that the final a is pronounced with the broad a, broad ''ah'' () in "father". If the Burmese name my, မြန်မာ, label=none were spelled "Myanma" in English, this would b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urushiol
Urushiol is an oily mixture of organic compounds with allergenic properties found in plants of the family Anacardiaceae, especially ''Toxicodendron'' ''spp.'' (e.g., poison oak, Chinese lacquer tree, poison ivy, poison sumac), ''Comocladia spp.'' (maidenplums), ''Metopium spp''. (poisonwood), and also in parts of the mango tree as well as the fruit of the cashew tree. In most individuals, urushiol causes an allergic skin rash on contact, known as urushiol-induced contact dermatitis. The name urushiol is derived from the Japanese word for the lacquer tree, . The oxidation and polymerization of urushiol in the tree's sap in the presence of moisture allows it to form a hard lacquer, which is used to produce traditional Chinese, Korean and Japanese lacquerware. History Although urushiol-containing lacquers and their skin-irritating properties were well known in East Asia for several millennia, its first recorded Western texts were in 1624 by John Smith and he initially likene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xanthone
Xanthone is an organic compound with the molecular formula O[C6H4]2CO. It is a white solid. In 1939, xanthone was introduced as an insecticide and it currently finds uses as Insecticide, ovicide for codling moth eggs and as a larvicide. Xanthone is also used in the preparation of xanthydrol, which is used in the determination of urea levels in the blood. It can also be used as a photocatalyst. Synthesis Xanthone can be prepared by the heating of phenyl salicylate: Six methods have been reported for synthesizing xanthone derivatives: *The Michael-Kostanecki method uses an equimolar mix of a polyphenol and an ''O''-hydroxybenzoic acid, which are heated with a dehydration reaction, dehydrating agent. *The Friedel–Crafts reaction, Friedel-Crafts method has a benzophenone intermediate. *The Robinson-Nishikawa method is a variant of the Hoesch reaction, Hoesch synthesis but with low yields. *The Asahina-Tanase method synthesizes some methoxylated xanthones, and xanthones with a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mangiferin
Mangiferin is a glucosylxanthone (xanthonoid). This molecule is a glucoside of norathyriol. Natural occurrences Mangiferin was first isolated from the leaves and bark of ''Mangifera indica'' (the mango tree). It can also be extracted from mango peels and kernels, ''Iris unguicularis'', ''Anemarrhena asphodeloides'' rhizomes and ''Bombax ceiba'' leaves. It is also found in the genera '' Salacia'' and ''Cyclopia'', as well as in coffee leaves and some species of ''Crocus''. Among the group of '' Asplenium hybrids'' known as the "Appalachian ''Asplenium'' complex", mangiferin and isomangiferin are produced only by ''Asplenium montanum'' and its hybrid descendants. The distinctive gold-orange fluorescence of these compounds under ultraviolet light has been used to aid in the chromatographic identification of hybrid ''Asplenium''s. Research Preliminary research is conducted on the potential biological properties of mangiferin, although there are no confirmed anti-disease eff ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chutneys
A chutney is a spread in the cuisines of the Indian subcontinent. Chutneys are made in a wide variety of forms, such as a tomato relish, a ground peanut garnish, yogurt or curd, cucumber, spicy coconut, spicy onion or mint dipping sauce. A common variant in Anglo-Indian cuisine uses a tart fruit such as sharp apples, rhubarb or damson pickle made milder by an equal weight of sugar (usually demerara, turbinado or brown sugar to replace jaggery in some Indian sweet chutneys). Vinegar was added to the recipe for English-style chutney that traditionally aims to give a long shelf life so that autumn fruit can be preserved for use throughout the year (as are jams, jellies and pickles) or to be sold as a commercial product. Indian pickles use mustard oil as a pickling agent, but Anglo-Indian style chutney uses malt or cider vinegar which produces a milder product. In western cuisine, chutney is often eaten with hard cheese or with cold meats and fowl, typically in cold pub lu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
