Skip to main content

Table 2 Potato yield estimation models for single stage

From: Nondestructive estimation of potato yield using relative variables derived from multi-period LAI and hyperspectral data based on weighted growth stage

Growth stage Regression equation Adjusted R2 RMSE Significance test
SS y = 1.9752a1 − 0.1321 0.5912 0.3361 P < 0.001
y = 1.6494b1 + 0.0935 0.4064 0.4043 P < 0.001
TFS y = 0.4626a2 − 0.1644 0.6423 0.3145 P < 0.001
y = 0.4223b2 − 0.0487 0.5661 0.3463 P < 0.001
TES y = 0.4421a3 − 0.1823 0.7415 0.2671 P < 0.001
y = 0.4305b3 − 0.1747 0.7034 0.2864 P < 0.001
SAS y = 0.3436a4 + 0.0572 0.7063 0.2844 P < 0.001
y = 0.3494b4 + 0.0593 0.6835 0.2956 P < 0.001
HS y = 0.3269a5 + 0.0961 0.4692 0.3835 P < 0.001
y = 0.3984b5 − 0.0706 0.5174 0.3654 P < 0.001
  1. a1, a2, a3, a4, a5 are plot-level rVI (CIred edge in this study) at SS, TFS, TES, SAS, and HS, respectively
  2. b1, b2, b3, b4, b5 are plot-level rLAI at SS, TFS, TES, SAS, and HS, respectively
Back to article page

Plant Methods

ISSN: 1746-4811