Table 1. The twenty-one weedy rice populations collected from different geographical locations in Sri Lanka with their GPS readings.
| Population Code | No. of individuals | Locality (District/Village) | Ecological Zone | Location (GPS) | |
| Latitude (N) | Longitude (E) | ||||
| Am-1 | 30 | Ampara/Lahugala | Dry | 06° 52′ 08.30″ | 81° 43′ 01.85″ |
| Am-2 | 17 | Ampara/Pothuvil | Dry | 06° 55′ 09.45″ | 81° 49′ 27.53″ |
| Am-3 | 24 | Ampara/Akkaraipattu | Dry | 07° 12′ 34.80″ | 81° 47′ 11.50″ |
| Am-4 | 27 | Ampara/Malwatta | Dry | 07° 19′ 17.30″ | 81° 43′ 56.19″ |
| Po-1 | 19 | Polonnaruwa/Hingurakgoda | Dry | 08° 02′ 13.30″ | 80° 57′ 03.40″ |
| Po-2 | 27 | Polonnaruwa/Nawanagaraya | Dry | 07° 54′ 43.40″ | 81° 00′ 44.50″ |
| An-1 | 30 | Anuradhapura/Saliyapura | Dry | 08° 23′ 48.70″ | 80° 26′ 39.80″ |
| An-2 | 17 | Anuradhapura/Thalawa | Dry | 08° 12′ 10.70″ | 80° 20′ 17.40″ |
| An-3 | 13 | Anuradhapura/Thambuttegama | Dry | 08° 07′ 51.89″ | 80° 17′ 34.27″ |
| An-4 | 15 | Anuradhapura/Maha-Iluppallama | Dry | 08° 06′ 49.55″ | 80° 28′ 55.24″ |
| An-5 | 30 | Anuradhapura/Madawachchiya | Dry | 08° 33′ 27.50″ | 80° 28′ 55.90″ |
| An-6 | 21 | Anuradhapura/Kekirawa | Dry | 08° 02′ 05.66″ | 80° 36′ 29.70″ |
| Ku-1 | 19 | Kurunegala/Kuliyapitiya | Wet | 07° 27′ 42.90″ | 80° 04′ 48.40″ |
| Ku-2 | 18 | Kurunegala/Mawathagama | Wet | 07° 26′ 43.10″ | 80° 25′ 47.50″ |
| Ku-3 | 22 | Kurunegala/Bingiriya | Dry | 07° 39′ 49.50″ | 80° 11′ 37.20″ |
| Ma-1 | 27 | Matara/Akurugoda | Wet | 06° 02′ 39.30″ | 80° 33′ 48.30″ |
| Ma-2 | 20 | Matara/Mulatiyana | Wet | 06° 09′ 21.00″ | 80° 34′ 30.50″ |
| Ma-3 | 14 | Matara/Pasgoda | Wet | 06° 14′ 36.82″ | 80° 36′ 35.91″ |
| Ma-4 | 22 | Matara/Kotapola | Wet | 06° 15′ 42.00″ | 80° 36′ 16.80″ |
| Pu-1 | 18 | Puttalam/Puttalam | Dry | 08° 02′ 34.80″ | 79° 54′ 55.10″ |
| Pu-2 | 19 | Puttalam/Madampe | Dry | 07° 32′ 03.40″ | 79° 46′ 44.50″ |