Common wheat: Difference between revisions

From WikiMD's Wellness Encyclopedia

CSV import
CSV import
 
Line 1: Line 1:
{{taxobox
{{Short description|A major cereal grain grown worldwide}}
|name = Common wheat
{{Use dmy dates|date=October 2023}}
|image = Tarweaar.jpg
|image_caption = Ears of common wheat
|regnum = [[Plantae]]
|unranked_divisio = [[Angiosperms]]
|unranked_classis = [[Monocots]]
|unranked_ordo = [[Commelinids]]
|ordo = [[Poales]]
|familia = [[Poaceae]]
|subfamilia = [[Pooideae]]
|tribus = [[Triticeae]]
|genus = ''[[Triticum]]''
|binomial = ''Triticum aestivum''
|binomial_authority = [[Carl Linnaeus|L.]]}}


'''Common wheat''' (''Triticum aestivum''), also known as '''bread wheat''', is a cultivated [[wheat]] species.<ref>{{Cite book | author=Bonjean, Alain P. and William J. Angus (eds) | year= 2001 | title=The world wheat book : a history of wheat breeding | location=Andover  | publisher=Intercept | isbn=1-898298-72-6 | page= 1131}} Excellent resource for 20th century plant breeding.</ref><ref>{{Cite book | author=Caligari, P.D.S. and P.E. Brandham (eds) | year=2001 | title=Wheat taxonomy : the legacy of John Percival | location=London | publisher=Linnean Society, Linnean Special Issue 3 | page=190}}</ref><ref>{{Cite book | author=Heyne E.G. (ed.) | year= 1987 | title=Wheat and wheat improvement | location=Madison, Wis. | publisher=American Society of Agronomy | isbn=0-89118-091-5 | page= 765}}</ref><ref name=Zohary>{{Cite book | author=Zohary, Daniel and Maria Hopf | year=2000 | title=Domestication of Old World plants: the origin and spread of cultivated plants in West Asia | location=Oxford | publisher=Oxford University Press | isbn=0-19-850356-3 | page=316}} Standard reference for evolution and early history.</ref> About 95% of the wheat produced is common wheat.
==Common wheat==
[[File:Wheat close-up.JPG|thumb|Close-up of common wheat]]
[[File:Wheat field.jpg|thumb|A field of common wheat]]


Common wheat has been got by many generations of [[artificial selection]] by farmers choosing the most productive plants which occurred in their [[crops]].<ref name=Zohary/>
'''Common wheat''' (''Triticum aestivum''), also known as bread wheat, is a cultivated wheat species that is the most widely grown of all wheat varieties. It accounts for about 95% of the wheat produced globally and is a staple food in many countries.  


==Evolution==
==Description==
Bread wheat is an [[polyploidy|allohexaploid]], instead of the original two sets ([[diploid]]). There are six sets of chromosomes, two sets from each of three different species.<ref>Brenchley ''et al'' 2012. Analysis of the bread wheat genome using whole-genome shotgun sequencing. [[Nature]] '''491''' (7426): 705–10. [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3510651/]</ref><ref name=Mayer>Mayer K.F.X. 2014. A chromosome-based draft sequence of the hexaploid bread wheat (Triticum aestivum) genome. ''Science'' '''345''' (6194): [http://www.sciencemag.org/content/345/6194/1251788]</ref>. Free-threshing [[wheat]] is closely related to [[spelt]] wheat. As with spelt, genes from goatgrass (''Aegilops tauschii'') give bread wheat greater cold hardiness than most wheats. It is cultivated throughout the world's [[temperate zone]]s.
Common wheat is an annual grass that grows to a height of 0.7 to 1.2 meters. The plant has a hollow stem, long leaves, and produces a head of grain at the top. The grains are small, hard, and vary in color from white to red. The plant is adapted to a wide range of climates and soil types, which contributes to its widespread cultivation.


Of the six sets of chromosomes, two come from [[einkorn wheat]] and two from ''Aegilops speltoides''. This hybridisation created the species ''Triticum turgidum'', 580{{ndash}}820 thousand years ago. The last two sets of chromosomes came from ''Aegilops tauschii'', 230–430 thousand years ago.<ref>Marcussen T. ''et al'' 2014. Ancient hybridizations among the ancestral genomes of bread wheat. ''Science'' '''345''' (6194): [http://www.sciencemag.org/content/345/6194/1250092].</ref>
==Cultivation==
Common wheat is grown in temperate regions around the world. It is typically planted in the fall or spring, depending on the climate, and harvested in the summer. The crop requires well-drained soil and adequate rainfall or irrigation. Modern agricultural practices, including the use of fertilizers and pesticides, have significantly increased wheat yields.


== References ==
==Uses==
{{reflist}}
The primary use of common wheat is for human consumption. The grains are milled into [[flour]], which is used to make a variety of products, including [[bread]], [[pasta]], [[noodles]], and [[pastries]]. Wheat is also used in the production of [[beer]] and [[whiskey]]. Additionally, wheat by-products are used as animal feed.


[[Category:Grains]]
==Nutritional Value==
[[Category:Poales]]
Common wheat is a rich source of carbohydrates, providing energy for the human diet. It also contains protein, dietary fiber, and essential vitamins and minerals such as [[iron]], [[magnesium]], and [[vitamin B]]. However, wheat contains [[gluten]], a protein that can cause adverse reactions in individuals with [[celiac disease]] or gluten sensitivity.
{{dictionary-stub1}}
 
<gallery>
==Genetic Diversity==
File:Blé_tendre_(GRAPELLI)_AO-5-cliche_Jean_Weber_(5)_(23975019962).jpg|Common wheat
Common wheat is an allohexaploid, meaning it has six sets of chromosomes. This genetic complexity allows for a high degree of variation and adaptability. Breeding programs have developed numerous varieties of wheat to improve yield, disease resistance, and environmental tolerance.
File:Triticum_aestivum_subsp._aestivum_MHNT.BOT.2015.2.31.jpg|Common wheat
 
File:A_field_of_wheat.JPG|A field of wheat
==Environmental Impact==
File:usdacompactum.jpg|Common wheat
The cultivation of common wheat has significant environmental impacts. It requires large amounts of water and can lead to soil degradation if not managed sustainably. However, advancements in agricultural technology and practices aim to reduce these impacts through more efficient water use and soil conservation techniques.
</gallery>
 
==Related pages==
* [[Durum wheat]]
* [[Emmer wheat]]
* [[Spelt]]
* [[Wheat production]]
* [[Agriculture]]
 
[[Category:Wheat]]
[[Category:Cereals]]
[[Category:Staple foods]]

Latest revision as of 19:04, 22 March 2025

A major cereal grain grown worldwide



Common wheat[edit]

Close-up of common wheat
A field of common wheat

Common wheat (Triticum aestivum), also known as bread wheat, is a cultivated wheat species that is the most widely grown of all wheat varieties. It accounts for about 95% of the wheat produced globally and is a staple food in many countries.

Description[edit]

Common wheat is an annual grass that grows to a height of 0.7 to 1.2 meters. The plant has a hollow stem, long leaves, and produces a head of grain at the top. The grains are small, hard, and vary in color from white to red. The plant is adapted to a wide range of climates and soil types, which contributes to its widespread cultivation.

Cultivation[edit]

Common wheat is grown in temperate regions around the world. It is typically planted in the fall or spring, depending on the climate, and harvested in the summer. The crop requires well-drained soil and adequate rainfall or irrigation. Modern agricultural practices, including the use of fertilizers and pesticides, have significantly increased wheat yields.

Uses[edit]

The primary use of common wheat is for human consumption. The grains are milled into flour, which is used to make a variety of products, including bread, pasta, noodles, and pastries. Wheat is also used in the production of beer and whiskey. Additionally, wheat by-products are used as animal feed.

Nutritional Value[edit]

Common wheat is a rich source of carbohydrates, providing energy for the human diet. It also contains protein, dietary fiber, and essential vitamins and minerals such as iron, magnesium, and vitamin B. However, wheat contains gluten, a protein that can cause adverse reactions in individuals with celiac disease or gluten sensitivity.

Genetic Diversity[edit]

Common wheat is an allohexaploid, meaning it has six sets of chromosomes. This genetic complexity allows for a high degree of variation and adaptability. Breeding programs have developed numerous varieties of wheat to improve yield, disease resistance, and environmental tolerance.

Environmental Impact[edit]

The cultivation of common wheat has significant environmental impacts. It requires large amounts of water and can lead to soil degradation if not managed sustainably. However, advancements in agricultural technology and practices aim to reduce these impacts through more efficient water use and soil conservation techniques.

Related pages[edit]