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|Hybrid parentage||'Caloro' × 'Calady'|
|Subspecies||O. s. subsp. japonica|
|Cultivar group||temperate japonica|
|Origin||United States 1948|
Calrose is a medium grain rice variety, notable for being the founding variety of the Californian rice industry.
Calrose (USDA # C.I. 8988) originated and was developed at the Rice Experiment Station near Biggs, California and released to California growers in 1948. It grew in popularity with growers, marketers, and consumers to become the prominent rice variety in California until the late 1970s. Specific processing and cooking properties were associated with Calrose. Over the years improved new varieties with Calrose grain cooking and processing characteristics were released. These medium-size grains were commingled with Calrose in storage and later replaced the variety in commercial production due to their superior performance at many levels. Although that variety of Calrose is no longer grown, Calrose has become a name recognized in trade and the market place for the California type medium grain rice. The name "rose" indicates medium-grain shape (Blue Rose is an earlier medium grain developed in Louisiana) and "Cal" to indicate California origin and production. Eighty percent of the California rice crop is Calrose rice.
Calrose rice is the most recognized variety of California rice in the United States and abroad, especially in the Pacific. In Hawaii, Guam and other islands, Calrose rice accounts for more than 90% of the rice consumed. The variety is grown in other areas of the world where growing conditions are suitable, such as Australia.
After cooking, Calrose rice grains hold flavor well, and are soft and stick together, making it good for use in sushi.
The following are the top suppliers of Calrose Rice:
- California Family Foods
- American Commodity Company
- Farmers' Rice Cooperative
- Pacific International Rice Mills
- Doguet's Rice Milling Company
- Far West Rice
- Hinode Rice
- Sun Valley Rice
- California Cooperative Rice Research Foundation, Inc., Rice Experiment Station (RES, 955 Butte City Highway [Hwy 99], Biggs, CA 95917) http://www.plantsciences.ucdavis.edu/ricestation/ Archived 2012-08-28 at the Wayback Machine
- Johnson, T.H. (1958). "Registration of Rice Varieties". Agronomy Journal. 50: 694–700. doi:10.2134/agronj1958.00021962005000110021x.
- "Calrose Rice, A California Legacy". California Rice. Retrieved 2019-11-06.
- "Imported U.S. Rice Loses Its Luster". The Chosun Ilbo. Retrieved 2 February 2014.
- "Global Calrose Rice Market Survey Report 2020 Along With Statistics Forecasts Till 2029". The State News. 2019-10-23. Retrieved 2019-11-06.