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Ivan Michurin (biologist)
Ivan Vladimirovich Michurin (russian: Иван Владимирович Мичурин; – June 7, 1935) was a Russian practitioner of selection to produce new types of crop plants, Honorable Member of the Soviet Academy of Sciences, and academician of the Lenin All-Union Academy of Agriculture. Throughout all his life, Michurin worked to create new sorts of fruit plants. He introduced over 300 new varieties. He was awarded the Order of Lenin and Order of the Red Banner of Labour for his achievements. The town of Michurinsk is named in his honor, as was the Bulgarian town of Tsarevo between 1950 and 1991. Life and work In 1875, Michurin leased a strip of land of about 500 square metres not far from Tambov, began collecting plants, and started his research in pomology and selection. In 1899, he acquired a much bigger strip of land of about 130,000 square metres and moved all of his plants there. In 1920, right after the end of the Russian Civil War, Vladimir Lenin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pronsky Uyezd
Pronsky Uyezd (''Пронский уезд'') was one of the subdivisions of the Ryazan Governorate of the Russian Empire. It was situated in the central part of the governorate. Its administrative centre was Pronsk. Demographics At the time of the Russian Empire Census The first general census of the population of the Russian Empire in 1897 ( pre-reform Russian: ) was the first and only nation-wide census performed in the Russian Empire (the Grand Duchy of Finland was excluded). It recorded demographic data as ... of 1897, Pronsky Uyezd had a population of 109,755. Of these, 99.9% spoke Russian as their native language. Демоскоп Weekly - Приложение. Справочник статистических показателей References [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant
Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclude the fungi and some algae, as well as the prokaryotes (the archaea and bacteria). By one definition, plants form the clade Viridiplantae (Latin name for "green plants") which is sister of the Glaucophyta, and consists of the green algae and Embryophyta (land plants). The latter includes the flowering plants, conifers and other gymnosperms, ferns and their allies, hornworts, liverworts, and mosses. Most plants are multicellular organisms. Green plants obtain most of their energy from sunlight via photosynthesis by primary chloroplasts that are derived from endosymbiosis with cyanobacteria. Their chloroplasts contain chlorophylls a and b, which gives them their green color. Some plants are parasitic or mycotrophic and have lost the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cytogenetics
Cytogenetics is essentially a branch of genetics, but is also a part of cell biology/cytology (a subdivision of human anatomy), that is concerned with how the chromosomes relate to cell behaviour, particularly to their behaviour during mitosis and meiosis. Techniques used include karyotyping, analysis of G-banded chromosomes, other cytogenetic banding techniques, as well as molecular cytogenetics such as fluorescent ''in situ'' hybridization (FISH) and comparative genomic hybridization (CGH). History Beginnings Chromosomes were first observed in plant cells by Carl Nägeli in 1842. Their behavior in animal (salamander) cells was described by Walther Flemming, the discoverer of mitosis, in 1882. The name was coined by another German anatomist, von Waldeyer in 1888. The next stage took place after the development of genetics in the early 20th century, when it was appreciated that the set of chromosomes (the karyotype) was the carrier of the genes. Levitsky seems to have been t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michurin Barry Kent (1948), a Soviet film about the plant breeder
{{Disambig, surname ...
Michurin (masculine) or Michurina (feminine) may refer to: ;People *Ivan Fyodorovich Michurin (1700–1763), Russian architect *Ivan Vladimirovich Michurin (1855–1935), Soviet plant breeder *Olga Michurina, Russian runner who set a world record at the 10,000 meter women indoor event ;Places *Michurina (rural locality), name of several rural localities in Russia ;Other *Michurin (film) ''Michurin'' (russian: link=no, Мичурин) is a 1948 Soviet film directed by Oleksandr Dovzhenko about the life of Russian practitioner of selection Ivan Vladimirovich Michurin (1855–1935). The film is based on Dovzhenko's play ''Life in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michurin Central Genetic Laboratory (1948), a Soviet film about the plant breeder
{{Disambig, surname ...
Michurin (masculine) or Michurina (feminine) may refer to: ;People *Ivan Fyodorovich Michurin (1700–1763), Russian architect *Ivan Vladimirovich Michurin (1855–1935), Soviet plant breeder *Olga Michurina, Russian runner who set a world record at the 10,000 meter women indoor event ;Places *Michurina (rural locality), name of several rural localities in Russia ;Other *Michurin (film) ''Michurin'' (russian: link=no, Мичурин) is a 1948 Soviet film directed by Oleksandr Dovzhenko about the life of Russian practitioner of selection Ivan Vladimirovich Michurin (1855–1935). The film is based on Dovzhenko's play ''Life in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetics
Genetics is the study of genes, genetic variation, and heredity in organisms.Hartl D, Jones E (2005) It is an important branch in biology because heredity is vital to organisms' evolution. Gregor Mendel, a Moravian Augustinian friar working in the 19th century in Brno, was the first to study genetics scientifically. Mendel studied "trait inheritance", patterns in the way traits are handed down from parents to offspring over time. He observed that organisms (pea plants) inherit traits by way of discrete "units of inheritance". This term, still used today, is a somewhat ambiguous definition of what is referred to as a gene. Trait inheritance and molecular inheritance mechanisms of genes are still primary principles of genetics in the 21st century, but modern genetics has expanded to study the function and behavior of genes. Gene structure and function, variation, and distribution are studied within the context of the cell, the organism (e.g. dominance), and within the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Council Of People's Commissars
The Councils of People's Commissars (SNK; russian: Совет народных комиссаров (СНК), ''Sovet narodnykh kommissarov''), commonly known as the ''Sovnarkom'' (Совнарком), were the highest executive authorities of the Russian Soviet Federative Socialist Republic (RSFSR), the Soviet Union (USSR), and the Soviet republics from 1917 to 1946. The Sovnarkom of the RSFSR was founded in the Russian Republic soon after the October Revolution in 1917 and its role was formalized in the 1918 Constitution of the RSFSR to be responsible to the Congress of Soviets of the RSFSR for the "general administration of the affairs of the state". Unlike its predecessor the Russian Provisional Government which had representatives of various political parties, the Sovnarkom was a government of a single party, the Bolsheviks. The Sovnarkom of the USSR and Congress of Soviets of the USSR founded in 1922 were modelled on the RSFSR system, and identical Sovnarkom bodies we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mikhail Kalinin
Mikhail Ivanovich Kalinin (russian: link=no, Михаи́л Ива́нович Кали́нин ; 3 June 1946), known familiarly by Soviet citizens as "Kalinych", was a Soviet politician and Old Bolshevik revolutionary. He served as head of state of the Russian Soviet Federative Socialist Republic and later of the Soviet Union from 1919 to 1946. From 1926, he was a member of the Politburo of the Communist Party of the Soviet Union. Born to a peasant family, Kalinin worked as a metal worker in Saint Petersburg and took part in the 1905 Russian Revolution as an early member of the Bolsheviks. During and after the October Revolution, he served as mayor of Petrograd (St. Petersburg). After the revolution, Kalinin became the head of the new Soviet state, as well as a member of the Central Committee of the Communist Party and the Politburo. Kalinin remained the titular head of state of the Soviet Union after the rise of Joseph Stalin, but held little real power or influence. He ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semyon Sereda
Semyon Pafnutyevich Sereda (russian: Семён Пафнутьевич Середа; 1 February 1871 – 21 May 1933) was a Russian Bolshevik revolutionary and Soviet politician. He was the son of a railway employee. From 1896 to 1917 he worked as a statistician. Sereda joined the Bolshevik wing of the Russian Social Democratic Labor Party in 1903. In 1917, he became a member of the Ryazan ''gubkom'', and from 1 March 1918 until 1 December 1921 served as the Peoples's Commissar for Agriculture. In this capacity he led the grain requisition and punitive operations against peasants in Yeletsky Uyezd of Oryol Governorate in 1918. Sereda was one of the main initiators of the creation of state farms and industrial communities. From January 1920 he was a member of the Presidium of Supreme Soviet of the National Economy and Gosplan The State Planning Committee, commonly known as Gosplan ( rus, Госплан, , ɡosˈpɫan), was the agency responsible for central economic planning ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agriculture
Agriculture or farming is the practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to live in cities. The history of agriculture began thousands of years ago. After gathering wild grains beginning at least 105,000 years ago, nascent farmers began to plant them around 11,500 years ago. Sheep, goats, pigs and cattle were domesticated over 10,000 years ago. Plants were independently cultivated in at least 11 regions of the world. Industrial agriculture based on large-scale monoculture in the twentieth century came to dominate agricultural output, though about 2 billion people still depended on subsistence agriculture. The major agricultural products can be broadly grouped into foods, fibers, fuels, and raw materials (such as rubber). Food classes include cereals (grains), vegetables, fruits, cooking oils, meat, milk, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
People's Commissar
Commissar (or sometimes ''Kommissar'') is an English transliteration of the Russian (''komissar''), which means 'commissary'. In English, the transliteration ''commissar'' often refers specifically to the political commissars of Soviet and Eastern-bloc armies or to the people's commissars (effectively government ministers), while administrative officers are called ''commissaries''. The Russian word комисса́р, from French ''commissaire'', was used in Russia for both political and administrative officials. The title has been used in the Soviet Union and in Russia since the time of the emperor Peter the Great (). History In the 18th and 19th centuries in the Russian army ''kommissars'', then ''krigs-komissars'' (from german: Krieg 'war') were officials in charge of supply for the armed forces (see Rus. Генерал-кригскомиссар). Commissaries were used during the Provisional Government (March–July 1917) for regional heads of administration, but the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
