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Echinochloa Oryzoides
''Echinochloa oryzoides'' is a species of grass known by the common name early barnyard grass. Its origin is not certain but it may be Eurasia. The grass is a major weed A weed is a plant considered undesirable in a particular situation, growing where it conflicts with human preferences, needs, or goals.Harlan, J. R., & deWet, J. M. (1965). Some thoughts about weeds. ''Economic botany'', ''19''(1), 16-24. Pla ... of rice paddies; it is a serious problem as it is an effective Vavilovian mimic of rice, very difficult to separate from the crop. References External links Jepson Manual Treatment [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pietro Arduino
Pietro Arduino (18 July 1728, in Caprino Veronese – 13 April 1805, in Padua) was an Italian botanist. The geologist Giovanni Arduino (geologist), Giovanni Arduino (1714–1795) was his brother, and the agriculturalist s:Author:Luigi Arduino, Luigi Arduino (1750–1833) was his son. Selected works * ** * ''Memorie di osservazioni e di sperienze sopra la cultura e gli usi di varie plante'', 1766. File:Arduino, Pietro – Animadversionum botanicarum specimen, 1759 – BEIC 6933345.jpg, ''Animadversionum botanicarum specimen'', 1759 Sources * Fritz Encke, Günther Buchheim, Siegmund Seybold, eds. ''Zander Handwörterbuch der Pflanzennamen''; 13th ed. Ulmer Verlag, Stuttgart, 1984 {{DEFAULTSORT:Arduino, Pietro 18th-century Italian botanists Republic of Venice scientists 1728 births 1805 deaths ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karl Fritsch (botanist)
Karl Fritsch (24 February 1864 – 17 January 1934) was an Austrian botanist. He was a specialist on the Gesneriaceae and the taxonomy of monocots. Biography Fritsch was born in Vienna, the son of meteorologist Karl Fritsch, and educated mainly at the University of Vienna, obtaining his PhD degree in 1886 and his Habilitation in 1890. In 1900 he moved to the University of Graz as professor of Systematic Botany, where he built up the botanical institute. In 1910 he was appointed as director of the university's botanical garden, and in 1916 the new institute acquired its own building. He continued at Graz for the rest of his career, and died there. Fritsch's extensive research focussed especially on the flora of Austria. He had a particular interest in the family Gesneriaceae and in the taxonomy of the monocots. Between 1898 and 1902 Fritsch edited and distributed several fascicles (specimens no. 2801-3600) of the famous exsiccata work ''Flora exsiccata Austro Hungari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poaceae
Poaceae ( ), also called Gramineae ( ), is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos, the grasses of natural grassland and species cultivated in lawns and pasture. The latter are commonly referred to collectively as grass. With around 780 genera and around 12,000 species, the Poaceae is the fifth-largest plant family, following the Asteraceae, Orchidaceae, Fabaceae and Rubiaceae. The Poaceae are the most economically important plant family, including staple foods from domesticated cereal crops such as maize, wheat, rice, oats, barley, and millet for people and as feed for meat-producing animals. They provide, through direct human consumption, just over one-half (51%) of all dietary energy; rice provides 20%, wheat supplies 20%, maize (corn) 5.5%, and other grains 6%. Some members of the Poaceae are used as building materials ( bamboo, thatch, and straw); oth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weed
A weed is a plant considered undesirable in a particular situation, growing where it conflicts with human preferences, needs, or goals.Harlan, J. R., & deWet, J. M. (1965). Some thoughts about weeds. ''Economic botany'', ''19''(1), 16-24. Plants with characteristics that make them hazardous, aesthetically unappealing, difficult to control in managed environments, or otherwise unwanted in agriculture, farm land, Orchard, orchards, gardens, lawns, Park, parks, recreational spaces, residential and industrial areas, may all be considered weeds.Holzner, W., & Numata, M. (Eds.). (2013). ''Biology and ecology of weeds'' (Vol. 2). Springer Science & Business Media. The concept of weeds is particularly significant in agriculture, where the presence of weeds in fields used to grow crops may cause major losses in yields. Invasive species, plants introduced to an environment where their presence negatively impacts the overall functioning and biodiversity of the ecosystem, may also sometime ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vavilovian Mimicry
In plant biology and agriculture, Vavilovian mimicry (also crop mimicry or weed mimicry) is a form of mimicry in plants where a weed evolves to share characteristics with a crop plant through generations of involuntary artificial selection. It is named after the Russian plant geneticist Nikolai Vavilov. Selection against the weed may occur by killing a young or adult weed, by separating its seeds from those of the crop by winnowing, or both. The process has operated since Neolithic times, creating secondary crops such as rye and oats through mimicry of cereals such as wheat. Definition Vavilovian mimicry is a form of mimicry in plants where a weed of cultivation evolves to share characteristics with a crop through generations of artificial selection. It is sometimes described as crop mimicry or weed mimicry. It is named after Nikolai Vavilov, a prominent Russian plant geneticist of the early 20th century. In addition, Vavilov described as 'secondary crops' cereals such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientific American
''Scientific American'', informally abbreviated ''SciAm'' or sometimes ''SA'', is an American popular science magazine. Many scientists, including Albert Einstein and Nikola Tesla, have contributed articles to it, with more than 150 Nobel Prize-winners being featured since its inception. In print since 1845, it is the oldest continuously published magazine in the United States. ''Scientific American'' is owned by Springer Nature, which is a subsidiary of Holtzbrinck Publishing Group. History ''Scientific American'' was founded by inventor and publisher Rufus Porter (painter), Rufus Porter in 1845 as a four-page weekly newspaper. The first issue of the large-format New York City newspaper was released on August 28, 1845. Throughout its early years, much emphasis was placed on reports of what was going on at the United States Patent and Trademark Office, U.S. Patent Office. It also reported on a broad range of inventions including perpetual motion machines, an 1860 devi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinochloa
''Echinochloa'' is a very widespread genus of plants in the grass family and tribe Paniceae. Some of the species are known by the common names barnyard grass or cockspur grass. Some of the species within this genus are millets that are grown as cereal or fodder crops. The most notable of these are Japanese millet (''E. esculenta'') in East Asia, Indian barnyard millet (''E. frumentacea'') in South Asia, and burgu millet (''E. stagnina'') in West Africa. Collectively, the members of this genus are called barnyard grasses (though this may also refer to '' E. crus-galli'' specifically), and are also known as barnyard millets or billion-dollar grasses. When not grown on purpose, these grasses may become a nuisance to farmers. In particular, common barnyard grass (''E. crus-galli'') is notorious as a weed. It is not easily suppressed with living mulches such as velvet bean (''Mucuna pruriens'' var. ''utilis''). Early barnyard grass (''E. oryzoides'') is a well-known example ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cereals
A cereal is a grass cultivated for its edible grain. Cereals are the world's largest crops, and are therefore staple foods. They include rice, wheat, rye, oats, barley, millet, and maize (Corn). Edible grains from other plant families, such as amaranth, buckwheat and quinoa, are pseudocereals. Most cereals are annuals, producing one crop from each planting, though rice is sometimes grown as a perennial. Winter varieties are hardy enough to be planted in the autumn, becoming dormant in the winter, and harvested in spring or early summer; spring varieties are planted in spring and harvested in late summer. The term cereal is derived from the name of the Roman goddess of grain crops and fertility, Ceres. Cereals were domesticated in the Neolithic around 8,000 years ago. Wheat and barley were domesticated in the Fertile Crescent; rice and some millets were domesticated in East Asia, while sorghum and other millets were domesticated in West Africa. Maize was domesticated by In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
