Joint International Conference on Long-term Experiments ...

AD%
4
3,5
3
2,5
2
1,5
1
0,5
0
Tentant
Frumoasa
Robusta
Rozal
Redsec
Roclas
Figure 6: The effect of the treatment with copper oxychloride on the attack degree
The degreased milk treatment determined a positive reaction in Roclas variety where the
blight attack degree decreased by 20% compared to control. In Tentant, Agatha and
Rivera varieties, a neutral reaction was determined. In Robusta, Rozal, Redsec and
Cristian varieties, de attack degree increased by 20% compared to control (figure 7).
AD%
4
3,5
3
2,5
2
1,5
1
0,5
0
Tentant
Frumoasa
Robusta
Rozal
Redsec
Roclas
Figure 7: The influence of the treatment wioth degreased milk on the attack degree
When copper hydroxide treatment was applied, a positive reaction was recorded in
Tentant and Roclas varieties, with a 10% decrease of the attack compared to control in
each variety. In Rivera variety a neutral reaction was recorded (figure 8).
A positive reaction was recorded in Roclas and Tentant varieties when cosmetic
clay treatment was applied. The blight attack degree decreased by 40% compared to
control in Roclas variety and by 10% in Tentant variety (figure 9).
338
Dacia
Dacia
Amelia
Amelia
Agatha
Rivera
Agatha
Rivera
Sante
Cristian
Sante
Cristian