Table 1.
Characteristics of ten rice cultivars used to assess the bacterial community associated with roots.
| Cultivars | O. sativa subspecies | Observations | Sampled | Origina | |
|---|---|---|---|---|---|
| Improved | APO | indica | Good performance under aerobic conditions and responsiveness to nutrients | Wetland | PI |
| IR 36 | indica | High yield crop, resistance to many insect pets and plant diseases | Wetland | PI | |
| IR 64 | indica | Replace cultivar IR 36 as the largest planted cultivar in the 1980s | Wetland | PI | |
| IR 65600 | indica | An elite breeding line of New Plant Type (NPT) developed by crossing subspecies indica with tropical japonica | Wetland | PI | |
| IR 72 | indica | Replace cultivar IR 64 in the 1990s | Wetland | PI | |
|
| |||||
| Traditional | DEE | indica | Parent donor of modern cultivars. Spontaneous mutant, with dwarfing gene | Wetland | TW |
| Peta | indica | Parent donor of modern cultivars, photoperiod insensitivity. Resistance to tungro virus | Wetland | ID | |
|
| |||||
| Basmati | aromatica | Superfine grain qualities, distinct aroma. Tolerant to aluminium | Wetland | IN | |
|
| |||||
| Azucena | tropical | Aromatic. | Wetland | PI | |
| japonica | Tolerant to aluminium | ||||
| Morobere kan | tropical | Resistance to rice blast and tolerant to | Upland | GN | |
| japonica | drought and aluminium | ||||
Countries of origin: PI- Philippines; IN- India; ID- Indonesia; TW- Taiwan; GN- Guinea