## 2 Results and Discussion
### Mineral Element Content  
The enrichment with selenium affected the content of all the minerals, except for Fe in the fruit of the first truss, and for K in fruit of the second truss (Tables 2 and 3). In the first truss, the supply with the higher dose of selenium increased the content of Ca when plants were treated at IG stage, whereas it decreased the content of Cu, Ca, and Zn in the fruit of plants sprayed at FL and of K in plants sprayed at the IG stage. \begin{table}
\begin{tabular}{c c c c} \hline \hline \multirow{2}{*}{**Treatment Time**} & **Se Spray** & \multicolumn{2}{c}{**Blossom\(-\)End Rot Incidence**} \\  & **mg L\({}^{-1}\)** & \multicolumn{2}{c}{**Affected/Total Fruit Ratio**} \\ \cline{3-5}  & 0 & 25.3 a & 40.4 a \\  & 1.0 & 19.4 ab & 33.0 ab \\  & 1.5 & 14.4 ab & 31.2 bc \\ \hline \multirow{2}{*}{Immature green} & 0 & 18.2 ab & 36.8 a \\  & 1.0 & 9.2 b & 31.4 b \\  & 1.5 & 9.6 b & 20.2 c \\ \hline \multicolumn{5}{c}{Variance analysis} \\ \multicolumn{5}{c}{Treatment time (A)} & \multicolumn{2}{c}{*} \\ \multicolumn{5}{c}{Se dosage (B)} & \multicolumn{2}{c}{**} \\ \multicolumn{5}{c}{Interaction A \(\times\) B} & \multicolumn{2}{c}{**} \\ \hline \hline \end{tabular}  
* Significance is as follows: ns, not significant;
* significant at 5%. Different letters in each column correspond to significantly different values for \(p<0.05\) according to the LSD (least significant difference) test.  
\end{table} 
Table 4: Incidence of blossom-end rot on fruits of plants treated with sodium selenate (Na\({}_{2}\)SeO\({}_{4}\)), at different selenium concentrations and distributed at FL and fruit IG stages. \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multirow{2}{*}{**Treatment Time**} & **Se Spray** & **Cu** & **Zn** & **Mn** & **Fe** & **K** & **Ca** & **Mg** \\ \cline{3-8}  & **mg L\({}^{-1}\)** & \multicolumn{5}{c}{**mg L\({}^{-1}\)**} & \multicolumn{5}{c}{**mg kg\({}^{-1}\)**} & \multicolumn{5}{c}{**mg kg\({}^{-1}\)**} \\ \hline \multirow{3}{*}{Flowering} & 0 & 14.4 a & 60.4 a & 79.7 b & 484 a & 1672 a & 429 ab & 978 a \\  & 1.0 & 13.5 a & 65.5 a & 88.6 b & 493 a & 1076 a & 511 a & 1007 a \\  & 1.5 & 7.4 a & 35.5 c & 51.3 c & 363 a & 1540 ab & 375 b & 781 b \\ \hline \multirow{3}{*}{Immature green} & 0 & 14.1 a & 60.2 a & 80.0 b & 479 a & 1668 a & 431 ab & 980 a \\  & 1.0 & 9.9 a & 50.0 b & 77.1 b & 437 a & 1374 b & 458 a & 909 a \\  & 1.5 & 13.4 a & 61.6 a & 106 a & 401 a & 1005 c & 540 a & 1053 a \\ \hline \multicolumn{8}{c}{Variance analysis} \\ \multicolumn{8}{c}{Treatment time (A)} & \multicolumn{2}{c}{**} \\ \multicolumn{8}{c}{Se dosage (B)} & \multicolumn{2}{c}{**} \\ \multicolumn{8}{c}{Interaction A \(\times\) B} & \multicolumn{2}{c}{**} \\ \hline \hline \end{tabular}  
* Significance is as follows: ns, not significant;
* significant at 1%; **
* significant at 0.1%. Different letters in each column correspond to significantly different values for \(p<0.05\) according to the LSD (least significant difference) test.  
\end{table} 
Table 2: Macro- and microelements concentration (mg kg\({}^{-1}\)) in tomato fruit of the first truss treated with sodium selenate (Na\({}_{2}\)SeO\({}_{4}\)) at different concentrations of Se at FL and fruit IG stages.