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
Dacia
Amelia
Agatha
Rivera
Sante
Cristian
Figure 2: The influence of the nutritive clay treatment on the attack degree
One positive reaction was recorded when whey treatment was applied in Roclas variety
(figure 3). 10% decrease was obtained compared to control. Neutral reaction was
obtained in Tentant variety.
AD%
5
4,5
4
3,5
3
2,5
2
1,5
1
0,5
0
Tentant
Frumoasa
Robusta
Rozal
Redsec
Roclas
Dacia
Amelia
Agatha
Rivera
Sante
Cristian
Figure 3: The evolution of the blight attack when whey was used
After treatment with copper sulfate in association with lime, the Roclas variety recorded
a positive reaction, with 20% decrease of blight attack degree compared to control. In
Tentant, Agatha and Rivera varieties a neutral reaction was recorded (figure 4).
The bentonite treatment determined positive reaction in two varieties, meaning
Roclas, where the attack degree decreased by 20% compared to control and Agatha
where the attack degree decreased by 10% compared to control. In Tentant, Dacia and
Rivera varieties a neutral reaction was recorded (figure 5).
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