rice

rice

1. KINGDOM: PLANTAE, ANGIOSPERMS, MONOCOTS,COMMELINIDS,

   • ORDER: POALES, FAMILY: POACEAE, GENUS:ORYZAE, SPECIES: SATIVA

2. Oryza sativa L.

   • 3 SUBSPECIES
     • INDICA
       • TROPICAL AND SUBTROPICAL
         • SOUTH ASIA SOUTHEAST ASIA USA SOUTHERN CHINA
     • JAVANICA
       • BULU(AWNED) GUNDIL(AWNLESS) LONG PANNICLES AND BOLD GRAINS
       • INDONESIA
     • JAPONICA
       • SHORT AND ROUNDISH GRAINS
       • GROWN IN CALIFORNIA AND USA DUE TO THEIR TOLERANCE TO LOW NIGHT TEMP
       • TEMPERATE REGIONS:JAPAN,CHINA, KOREA

3. annual grass: Gramineae

   • 20 wild species, 2 cultivated species
     • CULTIVATED SPECIES O.SATIVA (ASIA), O.glaberrima(AFRICA)

4. ORIGIN: 10,000 YEARS AGO IN RIVER VALLEYS OF SOUTH AND SOUTHEAST ASIA N CHINA

5. FLOWER OF RICE CALLED: PANICLE

6. STAGES OF RICE DEVELOPMENT

   • 1. GERMINATION N EMERGENCE
     • 2.SEEDLING
       • 3. TILLERING
         • 4. STEM ELONGATION
           • 5. PANICLE INITIATION
             • 6.PANICLE DEVELOPMENT
               • 7. FLOWERING
                 • 8. MILK GRAIN
                   • 9. DOUGH GRAIN
                     • 10. MATURE GRAIN STAGE

7. GROWN IN 53 DEGREE NORTH N 40 DEGREE S

8. PRODUCTION SYSTEM: UPLAND, IRRIGATED, RAINFED LOWLAND AND DEEPWATER

9. MAJOR PESTS OF RICE