Table 3.
Means of 19 grain quality indicators of rice samples, by cluster. Standard deviations are indicated in parentheses
| Variable | Cluster 1 (n = 114) |
Cluster 2 (n = 70) |
Cluster 3 (n = 27) |
|||
|---|---|---|---|---|---|---|
| GT (°C) | 74.81 | (3.98) | 77.10 | (1.22) | 77.94 | (1.38) |
| AC (%) | 25.07 | (1.44) | 25.51 | (1.49) | 21.22 | (1.24) |
| PV (P) | 2.23 | (0.52) | 2.28 | (0.43) | 2.49 | (0.18) |
| BD (P) | 0.67 | (0.20) | 0.78 | (0.14) | 1.10 | (0.14) |
| SB (P) | 0.69 | (0.21) | 0.61 | (0.18) | 0.15 | (0.18) |
| LO (P) | 1.36 | (0.25) | 1.39 | (0.19) | 1.24 | (0.09) |
| PT (min) | 5.96 | (0.30) | 5.84 | (0.18) | 5.89 | (0.13) |
| HRD (kg) | 1.96 | (0.50) | 1.94 | (0.50) | 1.73 | (0.47) |
| ADH (kg·sec)a | 0.02 | (0.01) | 0.02 | (0.01) | 0.04 | (0.02) |
| COH | 0.44 | (0.06) | 0.42 | (0.05) | 0.43 | (0.04) |
| SPR | 0.11 | (0.02) | 0.11 | (0.01) | 0.10 | (0.01) |
| G’max (kPa) | 40.64 | (9.62) | 28.34 | (7.20) | 29.83 | (7.26) |
| tan (δ) at G’max | 0.11 | (0.02) | 0.12 | (0.04) | 0.11 | (0.02) |
| G’trough (kPa) | 15.53 | (4.31) | 11.92 | (2.33) | 11.66 | (1.83) |
| S1 (kPa/min) | 7.45 | (2.66) | 4.66 | (1.88) | 5.93 | (2.49) |
| S2 (kPa/min)a | 1.66 | (0.58) | 1.27 | (0.33) | 1.29 | (0.22) |
| S3 (kPa/min) | 1.77 | (0.70) | 1.19 | (0.58) | 1.38 | (0.63) |
| S4 (kPa/min)a | 1.53 | (0.81) | 1.09 | (0.63) | 1.24 | (0.71) |
| PC (%) | 8.66 | (1.26) | 8.34 | (1.02) | 8.30 | (1.00) |
aAbsolute values are indicated here because for these parameters, the negative (−) sign only indicates direction (i.e., up or down) rather than magnitude less than zero