Oryza glutinosa Lour.
Oryza sativa var. affinis Korn.
Oryza sativa var. erythroceros Korn.
Oryza sativa subsp. indica Kato
Oryza sativa cv. italica Alef.
Oryza sativa L. var. fatua Prain
Family: Poaceae - Grass family
Growth Habit: Graminoid
Bangla/Vernacular Name: Dhan.
Tribal Name: Cho (Khumi), Mi (Murang), Dhan (Rakhaing).
English Name: Rice.
An annual crop, 60 cm to 120 cm tall. Leaf blade linear, 30-70 cm long, 6-20 mm wide, flat, striate, scaberulous; ligule pointed, often prominently exerted. Panicle partially included in upper leaf sheath or more usually exerted, erect in flower, nodding in fruit.
The husked rice contains carbohydrates (78.1%), some protein, minerals (sodium, potassium, magnesium, calcium, iron, sulphur and chlorine) and fat. It also contains vitamins- thiamine and nicotinic acid and a number of trace elements including zinc, aluminium, nickel, iodine, floride. The rice bran contains up to 25% fatty oil (Anon, 1966). Glucotricin have been isolated from leaves. Plant also contains two diterpene lactone growth inhibitors - momilactone A and momilactone-B (Rastogi and Mehrotra, 1993).
Oryza sativa L.
Cultivated widely throughout the country.
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