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Table 4 The algorithms for estimating rapeseed yield using the product of vegetation index and short-stalk-leaf abundance

From: Remote estimation of rapeseed yield with unmanned aerial vehicle (UAV) imaging and spectral mixture analysis

VI × AbdSS_LF

Best fit function

R2

RMSE (kg/ha)

SAVI × AbdSS_LF

Yield = 9252.9 × SAVI × AbdSS_LF +519.28

0.84

299.91

NDVI × AbdSS_LF

Yield = 8059.7 × NDVI × AbdSS_LF +204.22

0.83

294.11

CIrededge × AbdSS_LF

Yield = 7011.2 × CIrededge × AbdSS_LF +735.09

0.82

302.27

TVI × AbdSS_LF

Yield = 181.15 × TVI × AbdSS_LF +755.43

0.82

299.88

  1. The best fit functions, determination coefficients (R2) and root mean square errors (RMSE) are given for four indices
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Plant Methods

ISSN: 1746-4811