Biology:Sorghum
| Sorghum | |
|---|---|
| |
| S. bicolor | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Poaceae |
| Subfamily: | Panicoideae |
| Supertribe: | Andropogonodae |
| Tribe: | Andropogoneae |
| Subtribe: | Saccharinae |
| Genus: | Sorghum Moench 1794, conserved name not Sorgum Adanson 1763 |
| Type species | |
| S. bicolor | |
| Synonyms[1] | |
| |
Sorghum (/ˈsɔːrɡəm/) or broomcorn is a genus of about 25 species of flowering plants in the grass family (Poaceae). Some of these species are grown as cereals for human consumption, in pastures for animals as fodder, and as bristles for brooms.[2] Sorghum grain is a nutritious food rich in protein, dietary fiber, B vitamins, and minerals.
Sorghum is either cultivated in warm climates worldwide or naturalized in open plains.[3] In 2021, world production of sorghum was 61 million tonnes, with the United States as the leading grower.
History
Sorghum was domesticated from its wild ancestor more than 5,000 years ago in what is today Sudan. The newest evidence comes from an archaeological site near Kassala in eastern Sudan, dating from 3500 to 3000 BC, and is associated with the neolithic Butana Group culture.[4] It was the staple food of the kingdom of Alodia.[5]
Taxonomy
Sorghum is in the grass family, Poaceae, in the subfamily Panicoideae, in the tribe Andropogoneae – the same as maize (Zea mays), big bluestem (Andropogon gerardi), and sugarcane (Saccharum spp.).
Species
Accepted species recorded include:[6]
| Sorghum production – 2021 | |
|---|---|
| Country | (Millions of tonnes) |
 United States |
11.4 |
 India |
4.8 |
 Ethiopia |
4.4 |
 Mexico |
4.4 |
 Argentina |
3.3 |
 China |
3.0 |
| World | 61.4 |
| Source: FAOSTAT of the United Nations[7] | |
Genetics and genomics
Agrobacterium transformation can be used on this genus,[8] as shown in a 2018 report of such a transformation system.[8] A 2013 study developed and validated an SNP array for molecular breeding.[9][10]
Distribution and habitat
Seventeen of the 25 species are native to Australia ,[11][12][13][14] with the range of some extending to Africa, Asia, Mesoamerica, and certain islands in the Indian and Pacific Oceans.[15][16]
Production
In 2021, world production of sorghum was 61 million tonnes, led by the United States with 19% of the total (table). India, Ethiopia, and Mexico were secondary producers.
| Nutritional value per 100 g (3.5 oz) | |
|---|---|
| Energy | 329 kJ (79 kcal) |
72.1 g | |
| Sugars | 2.53 g |
| Dietary fiber | 6.7 g |
3.46 g | |
| Saturated | 0.61 g |
| Monounsaturated | 1.13 g |
| Polyunsaturated | 1.56 g |
10.6 g | |
| Vitamins | Quantity %DV† |
| Vitamin A equiv. | 0% 0 μg |
| Thiamine (B1) | 29% 0.332 mg |
| Riboflavin (B2) | 8% 0.096 mg |
| Niacin (B3) | 25% 3.69 mg |
| Pantothenic acid (B5) | 7% 0.367 mg |
| Vitamin B6 | 34% 0.443 mg |
| Folate (B9) | 5% 20 μg |
| Vitamin C | 0% 0 mg |
| Vitamin E | 3% 0.5 mg |
| Minerals | Quantity %DV† |
| Calcium | 1% 13 mg |
| Copper | 14% 0.284 mg |
| Iron | 26% 3.36 mg |
| Magnesium | 46% 165 mg |
| Manganese | 76% 1.6 mg |
| Phosphorus | 41% 289 mg |
| Potassium | 8% 363 mg |
| Selenium | 17% 12.2 μg |
| Sodium | 0% 2 mg |
| Zinc | 18% 1.67 mg |
| Other constituents | Quantity |
| Water | 12.4 g |
| |
| †Percentages are roughly approximated using US recommendations for adults. Source: USDA Nutrient Database | |
Toxicity
In the early stages of plant growth, some sorghum species may contain levels of hydrogen cyanide, hordenine, and nitrates lethal to grazing animals.[17] Plants stressed by drought or heat can also contain toxic levels of cyanide and nitrates at later stages in growth.[18]
Nutrition
The grain is edible and nutritious. It can be eaten raw when young and milky, but has to be boiled or ground into flour when mature.[19]
Sorghum grain is 72% carbohydrates including 7% dietary fiber, 11% protein, 3% fat, and 12% water (table). In a reference amount of 100 grams (3.5 oz), sorghum grain supplies 79 calories and rich contents (20% or more of the Daily Value, DV) of several B vitamins and dietary minerals (table).
Use
Sorghum cultivation has been linked by archeological research to ancient Sudan around 6,000 to 7,000 BP.[20] One species, S. bicolor,[21] native to Africa with many cultivated forms,[22] is a common crop worldwide, used for food (in the form of grain or sorghum syrup), animal fodder, the production of alcoholic beverages, and biofuels.
In Nigeria, the pulverized red leaf-sheaths of sorghum have been used to dye leather, and in Algeria, sorghum has been used to dye wool.[23]
Polyphenols
All sorghums contain mixed polyphenols, such as phenolic acids and flavonoids.[24] Sorghum grains are one of the highest food sources of proanthocyanidins.[25]
Cultivation
Most varieties of sorghum are drought- and heat-tolerant, nitrogen-efficient,[26] and are grown particularly in arid and semi-arid regions where the grain is one of the staples for poor and rural people. These varieties are forage in many tropical regions. S. bicolor is a food crop in Africa, Central America, and South Asia, and is the fifth most common cereal crop grown in the world.[27][28]
Chinese demand
In 2013, China began purchasing US sorghum as a complementary livestock feed to domestically grown maize. It imported around $1 billion worth per year until April 2018, when it imposed retaliatory tariffs as part of the trade war.[29]
References
- ↑ "World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew". http://apps.kew.org/wcsp/synonomy.do?name_id=443224.
- ↑ Hariprasanna, K.; Patil, J. V. (2015), Madhusudhana, R.; Rajendrakumar, P.; Patil, J.V., eds., "Sorghum: Origin, Classification, Biology and Improvement" (in en), Sorghum Molecular Breeding (New Delhi: Springer India): pp. 3–20, doi:10.1007/978-81-322-2422-8_1, ISBN 978-81-322-2421-1, https://link.springer.com/10.1007/978-81-322-2422-8_1, retrieved 2023-06-01
- ↑ "Sorghum", County-level distribution maps from the North American Plant Atlas (NAPA) (Biota of North America Program (BONAP)), 2014, http://bonap.net/NAPA/TaxonMaps/Genus/County/Sorghum, retrieved 4 September 2016
- ↑ "Earliest Evidence of Domesticated Sorghum Discovered" (in en). September 28, 2017. https://www.sci.news/archaeology/earliest-evidence-domesticated-sorghum-05271.html.
- ↑ Welsby, Derek (2002). The Medieval Kingdoms of Nubia. Pagans, Christians and Muslims Along the Middle Nile. British Museum. ISBN:978-0-7141-1947-2.
- ↑ "The Plant List: Sorghum". Royal Botanic Gardens Kew and Missouri Botanic Garden. 2013. http://www.theplantlist.org/tpl1.1/search?q=sorghum.
- ↑ "Production of sorghum in 2021, Crops/Regions/World list/Production Quantity/Year (pick lists)". UN Food and Agriculture Organization, Corporate Statistical Database (FAOSTAT). 2023. http://www.fao.org/faostat/en/#data/QC.
- ↑ 8.0 8.1 Guo, Minliang; Ye, Jingyang; Gao, Dawei; Xu, Nan; Yang, Jing (2019). "Agrobacterium-mediated horizontal gene transfer: Mechanism, biotechnological application, potential risk and forestalling strategy" (in en). Biotechnology Advances 37 (1): 259–270. doi:10.1016/j.biotechadv.2018.12.008. ISSN 0734-9750. PMID 30579929.
- ↑ Varshney, Rajeev; Bohra, Abhishek; Yu, Jianming; Graner, Andreas; Zhang, Qifa; Sorrells, Mark (2021). "Designing Future Crops: Genomics-Assisted Breeding Comes of Age" (in en). Trends in Plant Science 26 (6): 631–649. doi:10.1016/j.tplants.2021.03.010. ISSN 1360-1385. PMID 33893045.
- ↑ Bekele, Wubishet; Wieckhorst, Silke; Friedt, Wolfgang; Snowdon, Rod (2013). "High-throughput genomics in sorghum: from whole-genome resequencing to a SNP screening array". Plant Biotechnology Journal 11 (9): 1112–1125. doi:10.1111/pbi.12106. ISSN 1467-7644. PMID 23919585.
- ↑ Henry, Robert; Furtado, Agnelo; Brozynska, Marta (2016). "Genomics of crop wild relatives: expanding the gene pool for crop improvement" (in en). Plant Biotechnology Journal 14 (4): 1070–85. doi:10.1111/pbi.12454. ISSN 1467-7644. PMID 26311018.
- ↑ Dillon, Sally L.; Lawrence, Peter K.; Henry, Robert J.; Ross, Larry; Price, H. James; Johnston, J. Spencer (2004). "Sorghum laxiflorum and S. macrospermum, the Australian native species most closely related to the cultivated S. bicolor based on ITS1 and ndhF sequence analysis of 28 Sorghum species". Plant Systematics and Evolution 249 (3–4): 233–246. doi:10.1007/s00606-004-0210-7. ISSN 0378-2697.
- ↑ Sally L Dillon; Peter K Lawrence; Robert J Henry; Larry Ross; H James Price; J Spencer Johnston (2004). "Sorghum laxiflorum and S. macrospermum, the Australian native species most closely related to the cultivated S. bicolor based on ITS1 and ndhF sequence analysis of 25 Sorghum species" (in en). Plant Systematics and Evolution 249 (3-4): 233-246. doi:10.1007/s00606-004-0210-7. http://epubs.scu.edu.au/cpcg_pubs/244/. Retrieved 4 July 2023.
- ↑ "Sorghum". Atlas of Living Australia. http://bie.ala.org.au/species/urn:lsid:biodiversity.org.au:apni.taxon:420835.
- ↑ "Tropicos, Sorghum Moench". Tropicos. http://www.tropicos.org/Name/40002210.
- ↑ "Flora of China Vol. 22 Page 600 高粱属 gao liang shu Sorghum Moench, Methodus. 207. 1794". Efloras. http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=130722.
- ↑ "Sorghum". Victoria, Australia: Agriculture Victoria. http://agriculture.vic.gov.au/agriculture/livestock/beef/feeding-and-nutrition/sorghum.
- ↑ "Cyanide (prussic acid) and nitrate in sorghum crops". Queensland Government, Primary Industries and Fisheries. 7 November 2018. https://www.business.qld.gov.au/industries/farms-fishing-forestry/agriculture/land-management/health-pests-weeds-diseases/livestock/cyanide-nitrate-sorghum.
- ↑ (in en-US) The Complete Guide to Edible Wild Plants. New York]: Skyhorse Publishing, United States Department of the Army. 2009. pp. 94. ISBN 978-1-60239-692-0. OCLC 277203364. https://www.worldcat.org/oclc/277203364.
- ↑ Carney, Judith (2009). In the Shadow of Slavery. University of California Press. pp. 16. ISBN 9780520269965.
- ↑ Mutegi, Evans; Sagnard, Fabrice; Muraya, Moses et al. (2010-02-01). "Ecogeographical distribution of wild, weedy and cultivated Sorghum bicolor (L.) Moench in Kenya: implications for conservation and crop-to-wild gene flow". Genetic Resources and Crop Evolution 57 (2): 243–253. doi:10.1007/s10722-009-9466-7. http://oar.icrisat.org/2032/1/GRCE57_243-253__2010.pdf.
- ↑ Hauser, Stefan; Wairegi, Lydia; Asadu, Charles L. A.; Asawalam, Damian O.; Jokthan, Grace; Ugbe, Utiang (2015). "Sorghum- and millet-legume cropping systems". Centre for Agriculture and Bioscience International and Africa Soil Health Consortium. http://africasoilhealth.cabi.org/wpcms/wp-content/uploads/2015/03/392-ASHC-English-Sorghum-BW-A4-lowres.pdf.
- ↑ Dalziel, J.M. (1926). "African Leather Dyes" (in en). Bulletin of Miscellaneous Information (Royal Botanic Gardens, Kew) 6 (6): 230. doi:10.2307/4118651.
- ↑ Dykes, Linda; Rooney, Lloyd W. (2006). "Sorghum and millet phenols and antioxidants". Journal of Cereal Science 44 (3): 236–251. doi:10.1016/j.jcs.2006.06.007. http://www.ask-force.org/web/Africa-Harvest-Sorghum-Lit-1/Dykes-Phenols-2006.pdf.
- ↑ Luca, Simon Vlad; Macovei, Irina; Bujor, Alexandra et al. (2020). "Bioactivity of dietary polyphenols: The role of metabolites". Critical Reviews in Food Science and Nutrition 60 (4): 626–659. doi:10.1080/10408398.2018.1546669. PMID 30614249.
- ↑ Mulhollem, Jeff (10 August 2020). "Flavonoids' presence in sorghum roots may lead to frost-resistant crop". Pennsylvania State University. https://news.psu.edu/story/627935/2020/08/10/research/flavonoids-presence-sorghum-roots-may-lead-frost-resistant-crop. "… sorghum is a crop that can respond to climate change because of its high water- and nitrogen-use efficiency …"
- ↑ Tove Danovich (15 December 2015). "Move over, quinoa: sorghum is the new 'wonder grain'". The Guardian. https://www.theguardian.com/lifeandstyle/2015/dec/15/sorghum-wonder-grain-american-food-quinoa.
- ↑ Willy H. Verheye, ed (2010). "Growth and Production of Sorghum and Millets". Soils, Plant Growth and Crop Production. II. EOLSS Publishers. ISBN 978-1-84826-368-0. https://www.eolss.net/ebooklib/bookinfo/soils-plant-growth-crop-production.aspx.
- ↑ "Sorghum, targeted by tariffs, is a U.S. crop China started buying only five years ago". LA Times. Apr 18, 2018. https://www.latimes.com/business/la-fi-sorghum-china-20180418-story.html.
Further reading
- Watson, Andrew M. (1983). Agricultural Innovation in the Early Islamic World: The Diffusion of Crops and Farming Techniques, 700–1100. Cambridge University Press. ISBN 0-521-24711-X.
External links
- "Sorghum and millets in human nutrition" FAO Report (1995)
Wikidata ☰ Q12111 entry
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