Skip to main content

Table 4 Effect of silicon and potassium, sodium and calcium silicates, and a fungicide on enzyme activities of strawberry plants under field conditions

From: Management of strawberry leaf blight disease caused by Phomopsis obscurans using silicate salts under field conditions

Treatment

Application

Enzyme activities

Peroxidase

Polyphenol oxidase

Chitinase

Activity

Increase %

Activity

Increase %

Activity

Increase %

Silicon

Soil

1.5

87.5

1.4

133.0

4.5

125.0

Soil+ foliar

1.8

125.0

1.4

133.0

4.5

125.0

Potassium silicate

Soil

2.0

150.0

1.8

200.0

5.0

150.0

Soil+ foliar

2.4

200.0

2.1

250.0

6.5

225.0

Sodium silicate

Soil

1.5

87.5

1.5

150.0

4.5

125.0

Soil+ foliar

1.8

125.0

1.7

183.3

5.5

175.0

Calcium silicate

Soil

2.0

150.0

1.5

150.0

5.5

175.0

Soil+ foliar

2.2

175.0

2.0

233.3

6.0

200.0

Amstar (fungicide) 1 ml/l

Foliar

1.5

87.5

1.4

133.0

4.5

125.0

Control

Untreated

0.8

 

0.6

0.0

2.0

0.0