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9 Topic Pages Found in Agriculture, Aquaculture & Food Sciences and starting with the letter O
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Open Oak
Oak

any tree or shrub of the genus Quercus of the family Fagaceae ( beech family). This complex genus includes as many as 600, found chiefly in north

Open Oats
Oats

cereal plants of the genus Avena of the family Gramineae ( grass family). Most species are annuals of moist temperate regions. The early history of

Open Oktoberfest
Oktoberfest

Type of Holiday: Calendar /Seasonal, Historic Date of Observation: Second to last Saturday in September until the First Sunday in October Where

Open Olive
Olive

common name for the Oleaceae, a family of trees and shrubs (including climbing forms) of warm temperate climates and of the Old World tropics,

Open onion
onion

plant of the family Liliaceae ( lily family), of the same genus (Allium) as the chive (A. schoenoprasum), garlic (A. sativum), leek (A. porrum), and

Open opium
opium

substance derived by collecting and drying the milky juice in the unripe seed pods of the opium poppy , Papaver somniferum. Opium varies in color from

Open Organic farming
Organic farming

Farming without the use of synthetic fertilizers (such as nitrates and phosphates) or pesticides (herbicides, insecticides, and fungicides) or other

Open Organic food
Organic food

There is no one simple definition of organic foods. In the United States, 1 of 90 countries with organic food standards, regulations detailing organic

Open oyster
oyster

bivalve mollusk found in beds in shallow, warm waters of all oceans. The shell is made up of two valves, the upper one flat and the lower convex, with