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- بازدید امروز: 459
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شنبه 94 اسفند 1 :: 11:17 عصر :: نویسنده : محسن گروسی
فروشنده فایل
کد کاربری 19093
Oats are annual grasses belonging to the genus Avena, in the family Poaceae and are grown primarily for use as livestock feed. Several species of oats are grown commercially in different regions of the world,
including Avena sativa (common oat), Avena byzantina (Algerian or red oat), Avena nuda (naked oat) and Avena sterilis (the sterile or animated oat). Like wheat, oats generally have been developed into different
varieties that are adapted to planting at different times of the year. Spring oats are planted for a late summer harvest, whereas Winter oats are planted for harvesting in early to mid summer. Overwintering varieties
are more commonly grown in regions with mild winters. Oats generally possess an upright stem and fibrous root system. The inflorescence consists of a number of branches, or racemes, and spikelets (20–150 per
plant) which usually contain three florets or flowers (naked oats produce 3–7 flowers per spikelet). Generally, two seeds (kernels) are produced per spikelet, but sometimes only one develops. Ancestors of the
common oat, Avena sativa and the closely related Avena byzantina originated from the Fertile Crescent of the Near East.
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