TABLE 4.
Mean genotypic values of the 20 genotypes selected under RESIM, KN1 RSI, and KN2 RSI, for traits female flowering (FFL), ear height (EHT), and 100-kernel weight (HKF) during five selection cycles for simulated data using phenotypic and genotypic variance–covariance matrices
| RESIM
|
KN1 RSI
|
KN2 RSI
|
|||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MFL | FFL | PHT | EHT | HKF | MFL | FFL | PHT | EHT | HKF | MFL | FFL | PHT | EHT | HKF | |
| Selection cycles | (−) | (−) | (−) | (−) | (+) | (−1) | (−1) | (−1) | (−1) | (+1) | (−0.51) | (−0.46) | (−0.38) | (−0.52) | (0.27) |
| 0 | 98.5 | 98.9 | 139.6 | 88.4 | 20.4 | 98.5 | 98.9 | 139.6 | 88.4 | 20.4 | 98.5 | 98.9 | 139.6 | 88.4 | 20.4 |
| 1 | 97.4 | 96.5 | 141.3 | 84.1 | 20.2 | 97.4 | 96.3 | 141.2 | 84.2 | 20.2 | 97.7 | 96.33 | 140.4 | 82.8 | 20.0 |
| 2 | 97.7 | 94.8 | 143.6 | 80.2 | 20.6 | 99.4 | 95.6 | 143.5 | 80.3 | 20.5 | 98.8 | 95.2 | 145.1 | 81.6 | 20.5 |
| 3 | 97.2 | 94.0 | 141.2 | 76.4 | 21.7 | 98.2 | 94.7 | 139.8 | 74.4 | 21.1 | 97.6 | 94.0 | 143.1 | 75.9 | 20.1 |
| 4 | 98.4 | 94.5 | 140.7 | 76.7 | 22.4 | 97.4 | 93.9 | 137.7 | 70.5 | 21.4 | 97.7 | 93.7 | 145.2 | 75.5 | 21.1 |
| 5 | 99.2 | 93.9 | 139.9 | 71.1 | 22.1 | 98.9 | 93.3 | 135.2 | 67.8 | 21.4 | 98.7 | 93.1 | 141.9 | 71.58 | 21.1 |
| Gain per selection cycle | 0.19 | −0.92 | −0.18 | −3.45 | 0.48 | 0.05 | −1.05 | −1.15 | −4.53 | 0.27 | 0.02 | −1.10 | 0.58 | −3.44 | 0.19 |
The gain per cycle is the regression coefficient of the mean genotypic values regressed on the selection cycles. The signs and economic weights of the SIs for each trait are shown in parentheses. The restrictive traits are male flowering (MFL) and plant height (PHT).