Table 5.
X-loadings of the first and second PLSR components of environmental covariables and their Pearson’s correlation coefficients sorted in descending order of the first latent factor loadings extracted from the FA3 model.
| Environmental covariables | Partial least squares | Factor analytic model | |||
|---|---|---|---|---|---|
| Component 1 | Component 2 | Factor 1 | Factor 2 | Factor 3 | |
| RH3 | −0.19 | 0.07 | 0.45 | 0.48 | 0.45 |
| SM3 | −0.19 | −0.04 | 0.42 | 0.43 | 0.25 |
| RH2 | −0.19 | 0.03 | 0.41 | 0.28 | 0.35 |
| SM2 | −0.20 | −0.09 | 0.40 | 0.43 | 0.19 |
| SM1 | −0.20 | −0.04 | 0.40 | 0.49 | 0.31 |
| TMIN2 | −0.16 | 0.05 | 0.39 | 0.10 | 0.25 |
| RH4 | −0.18 | −0.17 | 0.37 | 0.40 | 0.17 |
| RH1 | −0.18 | −0.19 | 0.36 | 0.50 | 0.08 |
| SSW3 | −0.20 | 0.05 | 0.36 | 0.41 | 0.36 |
| RZSW1 | −0.20 | −0.06 | 0.36 | 0.47 | 0.29 |
| SM4 | −0.20 | −0.10 | 0.36 | 0.48 | 0.26 |
| RZSW3 | −0.19 | 0.02 | 0.35 | 0.42 | 0.32 |
| SSW1 | −0.20 | −0.09 | 0.35 | 0.51 | 0.24 |
| SSW2 | −0.19 | −0.03 | 0.35 | 0.37 | 0.24 |
| RZSW2 | −0.19 | −0.02 | 0.33 | 0.33 | 0.23 |
| SSW4 | −0.19 | −0.12 | 0.28 | 0.44 | 0.23 |
| RZSW4 | −0.19 | −0.12 | 0.27 | 0.46 | 0.23 |
| TMIN3 | −0.11 | −0.06 | 0.25 | 0.34 | 0.10 |
| PRECIP3 | −0.07 | 0.31 | 0.14 | 0.21 | 0.53 |
| WS1 | 0.01 | −0.43 | 0.10 | 0.09 | −0.40 |
| TMIN1 | −0.08 | 0.05 | 0.08 | −0.05 | 0.05 |
| PRECIP4 | −0.07 | 0.07 | 0.06 | 0.25 | 0.30 |
| PRECIP1 | −0.11 | 0.08 | 0.02 | 0.20 | 0.08 |
| TMIN4 | 0.00 | 0.04 | −0.05 | −0.21 | −0.18 |
| PRECIP2 | −0.10 | 0.13 | −0.05 | 0.04 | 0.11 |
| WS4 | 0.09 | −0.41 | −0.16 | 0.03 | −0.45 |
| SRAD2 | 0.16 | −0.04 | −0.21 | −0.11 | −0.32 |
| WS3 | 0.12 | −0.41 | −0.23 | −0.03 | −0.48 |
| WS2 | 0.10 | −0.39 | −0.24 | −0.12 | −0.41 |
| TMAX2 | 0.17 | −0.03 | −0.24 | −0.34 | −0.29 |
| SRAD3 | 0.18 | −0.13 | −0.27 | −0.38 | −0.40 |
| TRAN4 | 0.18 | 0.14 | −0.31 | −0.35 | −0.13 |
| TMAX4 | 0.17 | 0.15 | −0.31 | −0.42 | −0.20 |
| TRAN1 | 0.18 | 0.22 | −0.31 | −0.36 | −0.01 |
| SRAD4 | 0.16 | 0.06 | −0.32 | −0.52 | −0.25 |
| TMAX1 | 0.17 | 0.28 | −0.32 | −0.44 | 0.01 |
| TMAX3 | 0.18 | −0.15 | −0.32 | −0.43 | −0.51 |
| SRAD1 | 0.17 | 0.07 | −0.33 | −0.24 | −0.08 |
| TRAN2 | 0.18 | −0.05 | −0.36 | −0.23 | −0.30 |
| TRAN3 | 0.18 | −0.07 | −0.37 | −0.49 | −0.40 |
TMAX, mean maximum temperature; TMIN, mean minimum temperature; TRAN, mean temperature range; PRECIP, total precipitation; RH, mean relative humidity; WS, mean wind speed; SRAD, mean solar radiation; SSW, mean surface soil wetness; RZSW, mean root zone soil wetness; SM, mean soil moisture. The suffixes 1, 2, 3, and 4 denote the covariables measured at first, second, third, and fourth developmental phases of cassava crop, respectively.