Table 7 Scenario W0.7 – Pearson correlation and linear regression analysis between DInorm and spectral features at DAS 80 (non-fungicide treatment block) (results for Scenario X are presented in Supplementary Data S Table 1).

From: The potential of UAV and very high-resolution satellite imagery for yellow and stem rust detection and phenotyping in Ethiopia

 

UAV

SkySat

Pleiades

r

R2adj

RMSE

r

R2adj

RMSE

r

R2adj

RMSE

G

0.51

  

0.59

  

0.44

  

R

0.77

  

0.82*

0.59*

0.17

0.73

  

NIR

− 0.61

  

− 0.27

  

− 0.19

  

NGRDI

− 0.84*

0.63*

0.16

− 0.79

  

− 0.96**

0.90**

0.08

NDVI

− 0.93**

0.83**

0.11

− 0.98***

0.95***

0.06

− 0.99***

0.97***

0.05

GNDVI

− 0.86*

0.68*

0.15

− 0.85*

0.66*

0.16

− 0.92**

0.81**

0.12

TVI

− 0.89*

0.75*

0.13

− 0.92**

0.81**

0.12

− 0.83*

0.62*

0.16

CVI

− 0.43

  

− 0.36

  

0.08

  

CIG

− 0.86*

0.68*

0.15

− 0.83*

0.61*

0.17

− 0.93**

0.82**

0.11

RGR

0.85*

0.65*

0.16

0.79

  

0.96**

0.90**

0.09

RDVI

− 0.92**

0.81**

0.12

− 0.98***

0.96***

0.05

− 0.91*

0.79*

0.12

VARIg

− 0.84*

0.63*

0.16

− 0.79

  

− 0.96**

0.90**

0.08

OSAVI

− 0.93**

0.83**

0.11

− 0.98***

0.95***

0.06

− 0.99***

0.97***

0.05

MSR

− 0.92**

0.81**

0.12

− 0.97**

0.93**

0.07

− 0.99***

0.97***

0.05

MSAVI2

− 0.90*

0.77*

0.13

− 0.99***

0.96***

0.05

− 0.99***

0.97***

0.05

RVI

0.93**

0.84**

0.11

0.99***

0.96***

0.05

0.99***

0.97***

0.05

SAVI

− 0.91*

0.79*

0.12

− 0.98***

0.95***

0.06

− 0.99***

0.97***

0.05

SR

− 0.91*

0.79*

0.12

− 0.96**

0.91**

0.08

− 0.99***

0.97***

0.05

  1. *p-value < 0.05; **p-value < 0.01; and ***p-value < 0.001.
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