| Beschrijving |
English: Oryza sativa, commonly known as Asian rice, is the plant species most commonly referred to in English as rice. Oryza sativa is the cereal with the smallest genome, consisting of just 430Mb across 12 chromosomes. It is renowned for being easy to genetically modify, and is a model organism for cereal biology.
Oryza sativa contains two major subspecies: the sticky, short grained japonica or sinica variety, and the nonsticky, long-grained indica variety. Japonica varieties are usually cultivated in dry fields, in temperate East Asia, upland areas of Southeast Asia and high elevations in South Asia, while indica varieties are mainly lowland rices, grown mostly submerged, throughout tropical Asia. Rice is known to come in a variety of colors, including: White rice, Brown rice, Black rice, Purple rice, and Red rice.
The rice plant can grow up to 3.3–5.9 ft tall, occasionally more depending on the variety and soil fertility. It has long, slender leaves 50-100 cm long and 2-2.5 cm broad. The small wind-pollinated flowers are produced in a branched arching to pendulous inflorescence 30-50 cm long. The edible seed is a grain 0.5-1.2 cm long and 2-3 mm thick. Rice cultivation is well-suited to countries and regions with low labor costs and high rainfall, as it is labor-intensive to cultivate and requires ample water. Rice can be grown practically anywhere, even on a steep hill or mountain. Although its parent species are native to South Asia and certain parts of Africa, centuries of trade and exportation have made it commonplace in many cultures worldwide. العربية: سنابل أرز معدل جينياً |
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