Paddy Cultivation

There is a great deal of disagreement as to when and where the paddy plant originated. Some scientists believe that the first origin of the rice plant was in China, but some scientists believe that it occurred in India. However, by now it is assumed that the origin of paddy originated in Southeast Asia. However, it is thought that the origin of paddy could be attributed to those countries as there are many varieties of paddy cultivated in India and China. The Oryza genus includes 22 species, but only two of which are cultivated

1.Oryza sativa L. (Asian Rice group)
2.Oryza glaberrima steud. (African Paddy Group)

Scientists believe that the species Oryza sativa originated from the Asian wild type Oryza rufipogon, and the Oryza glaberrima species Oryza breviligulata, which is native to Africa. Oryza rufipogon is present in three perennial, annual and continuum, and Oryza breviligulate perennial varieties, under normal environmental conditions.

Paddy has become a widespread crop in the tropical, subtropical and temperate countries of the world. It has been reported that paddy has been cultivated as an agricultural crop in other countries. In Mesopotamia Poe Also in the 3rd century AD, Japan and Korea. Poe Spread over 2-3 centuries.

In Egypt 2nd century AD Madagascar and East Africa Ex. 6th century AD Spain Ex. Spread over the 9th century. AD in Portugal Ex. The 15th century islands of the West Indies. Ex. 15th century AD to Brazil 15th Century Australia 19th century AD Ex. The African rice scene is a native of Africa, mainly in the savannah grasslands of the Sahara Desert.

Paddy (Oryza sativa .L)

Kingdom: Plantae
Category: Tracheophyta (vascular plants)
Subdivision (S.Division): Pteropsida (seed plant)
Class: Angiospermae (dead seed plants)
Subclass (S.Class): Monocotyledoneae (monocotyledonous plants)
Tribe: (Order): Graminales
Family: Gramineae
Genus: Oryza
Species: Sativa

There are 2 species of subspecies (S.Species).

Hesien - Eco Group - Indica - (Indica)

A man (Moonsoon rice) - Prabha sensitive
Boro (winter rice) - Prabha stages are not sensitive
Aus (spring rice) - Prabha stages are not sensitive

Keng - Eco group

Japonica - (Japonica)
Communis (Common Kong varieties)
Nuda - (Paddy varieties grown in smooth highlands)
Invanaca (Bulu and Gundil)