01 April 1997.
Laos
Locality: Savannakhet Atsaphangthong Atsapha Tong Phosay
Coordinates: Savannakhet Atsaphangthong Atsapha Tong Phosay16.6564, 105.5642
(Map it)
Elevation: 270m.
District: Atsaphangthong;
Drainage: Moderate;
Fund: Irri (Sdc);
Herb: No;
Prov: Savannakhet;
Samp_Method: Random;
Seed_File: Yes;
Site: Level;
Soil_Text: Loam;
Topo: Flood Plain;
Awn_Strength: Hard;
Breedsys: Inbreeding;
Deg_Graze: No Grazing;
Deg_Introg: 6-10% Gene Flow From O. Sativa To Wild Pop.;
Dist_To_Sat: 0 (In Cultivated Field);
Floating: ;
Flower: Same As O. Sativa;
Growth_Stage: Mature;
Pop_Comp: Heterogeneous;
Pop_Fert: Few Sterile Spikelets (60-80% Fertile);
Pop_Size: 50;
Ratoon: Few;
Seed_Prod: High;
Shade: Open;
Spp_Diver: Abundant Spp.(>20 Spp.) (Climax Community)