Rapeseed

Rapeseed (Brassica napus), also known as rape, oilseed rape, and canola, is a bright-yellow flowering member of the family Brassicaceae (mustard or cabbage family), cultivated mainly for its oil-rich seed. It is the third-largest source of vegetable oil in the world, after soybean and palm oil.

History

Rapeseed has been cultivated since ancient times, with evidence of its use dating back to 2000 BC. It was initially grown for its oil, which was used in lamps and as a lubricant. The plant's cultivation spread from the Mediterranean region to Asia and Europe.

Botany

Rapeseed is an annual plant that grows to a height of 1 to 2 meters. It has a deep taproot and a rosette of leaves at the base. The flowers are yellow and form in clusters. The seeds are small, round, and black or brown.

Cultivation

Rapeseed is grown in temperate climates and requires well-drained soil. It is typically planted in the spring or fall and harvested in the summer. The plant is susceptible to pests and diseases, such as the cabbage stem flea beetle and clubroot.

Uses

Oil Production

Rapeseed oil is extracted from the seeds and is used in cooking, as a salad oil, and in the production of margarine. It is also used as a biofuel and in the production of biodiesel.

Animal Feed

The meal that remains after oil extraction is used as a high-protein animal feed for livestock, particularly for cattle, pigs, and poultry.

Industrial Uses

Rapeseed oil is used in the production of lubricants, hydraulic fluids, and plastics. It is also used in the manufacture of cosmetics and soaps.

Health Benefits

Rapeseed oil is low in saturated fat and high in monounsaturated fat, making it a healthy choice for cooking. It is also a good source of omega-3 fatty acids and vitamin E.

Environmental Impact

Rapeseed cultivation can have both positive and negative environmental impacts. It can improve soil health and reduce the need for synthetic fertilizers. However, it can also lead to soil erosion and water pollution if not managed properly.

See Also

• Canola
• Vegetable oil
• Biodiesel
• Brassicaceae

External Links

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  Rapeseed

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  Rapeseed Fields

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  Brassica napus - Habit

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  Brassica napus

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  Brassica napus fruit

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  Rapeseed Seed

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  The Yellow Cloud

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  Champ de colza Côte-d'Or Bourgogne

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  Field in Kärkölä

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  Rapeseed, roasted