in Florida runs from March to June. Worldwide, Valencia oranges are prized as the only variety of orange in season during summer. Furthermore, Valencia oranges bring benefits because of the vitamin C and flavonoids contained. In 2012, the genome of the orange was sequenced, and was found to have 29,445 protein-coding genes. It was also found that the sweet orange originated from a backcross hybrid between pummelo and mandarin orange. The Valencia orange undergoes nucellar embryony in both fertilized and unfertilized conditions of the ovule. See also California Citrus State Historic Park Eliza Tibbets Laraha Mother Orange Tree Midknight Valencia Orange References External links HOME FRUIT PRODUCTION-ORANGES at Texas Cooperative Extension Texas A&M Horticulture program Sweet Oranges (including Valencia Oranges: Campbell Valencia orange, Cutter Valencia orange, Delta Valencia orange, Midknight Valencia orange, Olinda Valencia orange at University of California Riverside Citrus Variety Collection Budget Plants: Valencia Orange Tree Information History of agriculture in the United States History of Irvine, California History of Orange County, California History of the American West Orange cultivars