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Club Wheat
''Triticum compactum'' or club wheat is a species of wheat adapted to low-humidity growing conditions. ''T. compactum'' is similar enough to common wheat (''T. aestivum'') that it is often considered a subspecies, ''T. aestivum compactum''. It can be distinguished by its more compact ear due to shorter rachis segments, giving it its common name. In the United States of America, nearly all ''T. compactum'' is grown in dry areas of the Pacific Northwest. ''T. compactum'' is a hexaploid with 21 chromosomes. ''T. compactum'', like other club wheats, has been selectively bred for its lower protein content. Due to the process of selective breeding ''T. compactum'' has fewer HMW-glutenin genes than other species of wheat. Flour made from ''T. compactum'' is thus better suited for the production of cookies. ''T. compactum'' like other bread wheats have never been observed to grow in the wild.Harold J. E. Peake. March 1939. ''36. The First Cultivation of Wheat''. Man. Vol.39. p. 36. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triticum Compactum Humboldtii
''Triticum compactum'' or club wheat is a species of wheat adapted to low-humidity growing conditions. ''T. compactum'' is similar enough to common wheat (''T. aestivum'') that it is often considered a subspecies, ''T. aestivum compactum''. It can be distinguished by its more compact ear due to shorter rachis segments, giving it its common name. In the United States of America, nearly all ''T. compactum'' is grown in dry areas of the Pacific Northwest. ''T. compactum'' is a hexaploid with 21 chromosomes. ''T. compactum'', like other club wheats, has been selectively bred for its lower protein content. Due to the process of selective breeding ''T. compactum'' has fewer HMW-glutenin genes than other species of wheat. Flour made from ''T. compactum'' is thus better suited for the production of cookies. ''T. compactum'' like other bread wheats have never been observed to grow in the wild.Harold J. E. Peake. March 1939. ''36. The First Cultivation of Wheat''. Man. Vol.39. p. 36. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triticum Compactum Erinaceum
Triticum compactum erinaceum, also called California Club Wheat or Mayview wheat, is an extinct subspecies of the hexaploid club wheat Triticum compactum. ''T. compactum erinaceum'' was a bearded, hairy rachis, red-chaffed wheat named for its appearance similar to that of a hedgehog. ''T. compactum erinaceum'' was thought to have disappeared before 1822.Davis, Horace. 1894California Breadstuffs (Chicago. The University of Chicago Press.) However data from the United States Department of Agriculture indicates two additional specimen that were discovered and identified as ''T. compactum erinaceum'' more than a hundred years after their presumed disappearance.J. Allen Clark and B. B. Bayles. 1935. Classification of Wheat Varieties Grown In The United States'. United States Department of Agriculture. The new specimen indicate that ''T. compactum erinaceum'' was grown in the United States until the Dust Bowl era, at which point it presumably disappeared. There have only been four reco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triticum Compactum Wernerianum
''Triticum compactum'' or club wheat is a species of wheat adapted to low-humidity growing conditions. ''T. compactum'' is similar enough to common wheat (''T. aestivum'') that it is often considered a subspecies, ''T. aestivum compactum''. It can be distinguished by its more compact ear due to shorter rachis segments, giving it its common name. In the United States of America, nearly all ''T. compactum'' is grown in dry areas of the Pacific Northwest. ''T. compactum'' is a hexaploid with 21 chromosomes. ''T. compactum'', like other club wheats, has been selectively bred for its lower protein content. Due to the process of selective breeding ''T. compactum'' has fewer HMW-glutenin genes than other species of wheat. Flour made from ''T. compactum'' is thus better suited for the production of cookies. ''T. compactum'' like other bread wheats have never been observed to grow in the wild.Harold J. E. Peake. March 1939. ''36. The First Cultivation of Wheat''. Man. Vol.39. p. 36. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triticum Compactum Rufulum
''Triticum compactum'' or club wheat is a species of wheat adapted to low-humidity growing conditions. ''T. compactum'' is similar enough to common wheat (''T. aestivum'') that it is often considered a subspecies, ''T. aestivum compactum''. It can be distinguished by its more compact ear due to shorter rachis segments, giving it its common name. In the United States of America, nearly all ''T. compactum'' is grown in dry areas of the Pacific Northwest. ''T. compactum'' is a hexaploid with 21 chromosomes. ''T. compactum'', like other club wheats, has been selectively bred for its lower protein content. Due to the process of selective breeding ''T. compactum'' has fewer HMW-glutenin genes than other species of wheat. Flour made from ''T. compactum'' is thus better suited for the production of cookies. ''T. compactum'' like other bread wheats have never been observed to grow in the wild.Harold J. E. Peake. March 1939. ''36. The First Cultivation of Wheat''. Man. Vol.39. p. 36. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triticum Compactum Wittmaddanum
''Triticum compactum'' or club wheat is a species of wheat adapted to low-humidity growing conditions. ''T. compactum'' is similar enough to common wheat (''T. aestivum'') that it is often considered a subspecies, ''T. aestivum compactum''. It can be distinguished by its more compact ear due to shorter rachis segments, giving it its common name. In the United States of America, nearly all ''T. compactum'' is grown in dry areas of the Pacific Northwest. ''T. compactum'' is a hexaploid with 21 chromosomes. ''T. compactum'', like other club wheats, has been selectively bred for its lower protein content. Due to the process of selective breeding ''T. compactum'' has fewer HMW-glutenin genes than other species of wheat. Flour made from ''T. compactum'' is thus better suited for the production of cookies. ''T. compactum'' like other bread wheats have never been observed to grow in the wild.Harold J. E. Peake. March 1939. ''36. The First Cultivation of Wheat''. Man. Vol.39. p. 36. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Wheat
Common wheat (''Triticum aestivum''), also known as bread wheat, is a cultivated wheat species. About 95% of wheat produced worldwide is common wheat; it is the most widely grown of all crops and the cereal with the highest monetary yield. Taxonomy Numerous forms of wheat have evolved under human selection. This diversity has led to confusion in the naming of wheats, with names based on both genetic and morphological characteristics. List of common cultivars * Albimonte * Manital Phylogeny Bread wheat is an allohexaploid (an allopolyploid with six sets of chromosomes: two sets from each of three different species). Of the six sets of chromosomes, two come from ''Triticum urartu'' (einkorn wheat) and two from a species related to ''Aegilops speltoides''. This spontaneous hybridisation created the tetraploid species ''Triticum turgidum'' (an ancestor of wild emmer wheat and durum wheat) 580,000–820,000 years ago. The last two sets of chromosomes came from wild goat-gra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rachis
In biology, a rachis (from the grc, ῥάχις [], "backbone, spine") is a main axis or "shaft". In zoology and microbiology In vertebrates, ''rachis'' can refer to the series of articulated vertebrae, which encase the spinal cord. In this case the ''rachis'' usually forms the supporting axis of the body and is then called the spine or vertebral column. ''Rachis'' can also mean the central shaft of pennaceous feathers. In the gonad of the invertebrate nematode '' Caenorhabditis elegans'', a rachis is the central cell-free core or axis of the gonadal arm of both adult males and hermaphrodites where the germ cells have achieved pachytene and are attached to the walls of the gonadal tube. The rachis is filled with cytoplasm. In botany In plants, a rachis is the main axis of a compound structure. It can be the main stem of a compound leaf, such as in ''Acacia'' or ferns, or the main, flower-bearing portion of an inflorescence above a supporting peduncle. Where it subdivides ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hexaploid
Polyploidy is a condition in which the cells of an organism have more than one pair of ( homologous) chromosomes. Most species whose cells have nuclei (eukaryotes) are diploid, meaning they have two sets of chromosomes, where each set contains one or more chromosomes and comes from each of two parents, resulting in pairs of homologous chromosomes between sets. However, some organisms are polyploid. Polyploidy is especially common in plants. Most eukaryotes have diploid somatic cells, but produce haploid gametes (eggs and sperm) by meiosis. A monoploid has only one set of chromosomes, and the term is usually only applied to cells or organisms that are normally diploid. Males of bees and other Hymenoptera, for example, are monoploid. Unlike animals, plants and multicellular algae have life cycles with two alternating multicellular generations. The gametophyte generation is haploid, and produces gametes by mitosis, the sporophyte generation is diploid and produces spores by meios ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bread Wheat
Common wheat (''Triticum aestivum''), also known as bread wheat, is a cultivated wheat species. About 95% of wheat produced worldwide is common wheat; it is the most widely grown of all crops and the cereal with the highest monetary yield. Taxonomy Numerous forms of wheat have evolved under human selection. This diversity has led to confusion in the naming of wheats, with names based on both genetic and morphological characteristics. List of common cultivars * Albimonte * Manital Phylogeny Bread wheat is an allohexaploid (an allopolyploid with six sets of chromosomes: two sets from each of three different species). Of the six sets of chromosomes, two come from ''Triticum urartu'' (einkorn wheat) and two from a species related to ''Aegilops speltoides''. This spontaneous hybridisation created the tetraploid species ''Triticum turgidum'' (an ancestor of wild emmer wheat and durum wheat) 580,000–820,000 years ago. The last two sets of chromosomes came from wild goat-gra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neolithic Era
The Neolithic period, or New Stone Age, is an Old World archaeological period and the final division of the Stone Age. It saw the Neolithic Revolution, a wide-ranging set of developments that appear to have arisen independently in several parts of the world. This "Neolithic package" included the History of agriculture, introduction of farming, domestication of animals, and change from a hunter-gatherer lifestyle to one of sedentism, settlement. It began about 12,000 years ago when farming appeared in the Epipalaeolithic Near East, and later in other parts of the world. The Neolithic lasted in the Near East until the transitional period of the Chalcolithic (Copper Age) from about 6,500 years ago (4500 BC), marked by the development of metallurgy, leading up to the Bronze Age and Iron Age. In other places the Neolithic followed the Mesolithic (Middle Stone Age) and then lasted until later. In Ancient Egypt, the Neolithic lasted until the Protodynastic Period of Egypt, Protodynast ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keel (anatomy)
A keel (or in Latin ''carina''), in anatomy, is a structure whose shape resembles the keel of a boat. The term may refer to: Animal anatomy * Keel (bird anatomy), a perpendicular extension of a bird's breastbone, to which wing muscles anchor * Keel (slug), a morphological feature on the back of some land slugs which resembles the keel of an upturned boat * Keel in a gastropod shell, a sharp ridge or edge at the shoulder or the center of periphery of the whorls of a snail shell * The caudal keel in fish anatomy, a strengthening ridge at the base of the tail * Keeled scales, reptile scales that have a ridge down the center, rather than being smooth Human anatomy * Carina of trachea * Sagittal keel, a feature of the skull Plant anatomy * Keel (petal), the two bottom petals, below the wings, in flowers of the subfamily Faboideae of the flowering plant family Fabaceae; sometimes joined to form a structure whose shape resembles the keel of a boat See also * Keel (disambiguati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
