Vegetation indices―21 February imagery acquisition^a

NDVI

RVI

GNDVI

GRVI

GVI

AVI

Italian ryegrass

0.5398bb

3.3809b

0.5857a

3.8360b

−0.0655ab

104.78b

Hairy vetch

0.4816c

2.8898c

0.5367b

3.3439c

−0.0738b

103.26b

Italian ryegrass + hairy vetch

0.5658a

3.6513a

0.5977a

3.9843a

−0.0464a

113.94a

F _(2,15)

26.61

28.10

49.84

54.28

2.54

5.00

PF

<0.0001

<0.0001

<0.0001

<0.0001

0.112

0.022

LSD (P ≤ 0.05)

0.025

0.220

0.014

0.137

0.026

7.78

Vegetation indices―2 April imagery acquisition

NDVI

RVI

GNDVI

GRVI

GVI

AVI

Italian ryegrass

0.4001b

2.3413b

0.3535b

2.0993b

0.0543a

107.10b

Hairy vetch

0.3216c

1.9879c

0.3362c

2.0290b

−0.0149b

89.02c

Italian ryegrass + hairy vetch

0.4346a

2.5503a

0.3794a

2.2282a

0.0666a

123.13a

F_(2,15)

27.06

23.53

14.40

13.31

36.74

22.19

PF

<0.0001

<0.0001

<0.0003

<0.0005

<0.0001

<0.0001

LSD (P ≤ 0.05)

0.034

0.177

0.017

0.084

0.022

10.92