Joint International Conference on Long-term Experiments ...

The data obtained at the influence of the SA on PA were. The data were statistically
evaluated using the standard deviation (SD) and t-test methods.
The values of the probabilities were determined from tables using the values of the
“t” distribution and the freedom degrees based on which the variance of the empiric
series was calculated.
3./ RESULTS AND DISCUSION
Where germination energy is concerned, the data obtained after counting the germinated
of 300 maize caryopsis, for each concentration of SA, were mathematically processed
obtaining the arithmetical mean of the three values. The obtained results were written
in the diagram in figure. 1.
Germination energy %
100
80
60
40
20
0
90
80.5
Control SA 0.1mg/l SA 1.0mg/l SA 5.0mg/l
SA solution
Figure.1– Percentage differences in the germinative energies of maize caryopsiss
(Zea Mays) after 72 hours of germination
The germination energy (figure.1) of the maize caryopsis was lower when were used
SA solutions of different concentrations, as compared with the control sample, a fact
also emphasized in the reference literature by Cutt and Klessig (1992). When using
1.0mg/l concentration SA solution, the germination energy was 55% from germination
energy of control lot. 5mg/l SA solution inhibit 100% the germination of maize
caryopsis.
Figure 2 shows an overview of the percentage differences in the extinction which
reflect the intensity of the peroxidase activity in roots and in coleoptiles of the maize
plantlets originated from the maize caryopsis germination on SA solutions of 0.1mg/l,
1.0mg/l and 5.0mg/l concentrations, for 72, 96 and 120 hours in comparison with the
same parameter determined in the roots and coleoptiles of the control sample, for which
the extinction was considered to be 100%.
488
55
0