Phenological stage

Treatment

Common rust

Northern leaf blight

R2

1

3.78 A

1.53 A

2

2.86 B

0.73 B

3

4.05 A

0.60 B

p-value 0.0043

p-value 0.0001

R3

1

5.56 A

1.20 A

2

3.92 B

0.60 B

3

3.10 B

0.40 B

p-value 0.0996

p-value 0.0745

R4

1

7.17 B

1.60 A

2

10.96 A

1.40 A

2*

6.98 B

1.60 A

3

6.07 B

0.80 B

3*

4.98 C

0.80 B

p-value < 0.0001

p-value 0.0013