## 3 Results and Discussion
### Experimental Data
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline  & **Control** & **Cold Hardening** & **Bunker 0.5** & **Bunker 1.5** & **Bunker 0.5** & **Bunker 1.5** & **Bunker 1.5** \\  & & & & & **16 kHz/1.5 kV** & **5 kV/cm 1 min** & **16 kHz/1.5 + 5 kV** \\ \hline \multicolumn{7}{c}{3 rd day of Germination} \\ \hline Shoot length \(\pm\)495\% (mm) & \(10.1\pm 0.4\) & \(14.4\pm 0.8\) & \(10.6\pm 0.4\) & \(9.5\pm 0.4\) & \(12\pm 0.8\) & \(9.8\pm 0.8\) & \(11.9\pm 0.8\) \\ Root length \(\pm\)495\% (mm) & \(18.6\pm 0.3\) & \(24.3\pm 0.7\) & \(16.5\pm 0.4\) & \(18.0\pm 0.4\) & \(18.6\pm 0.7\) & \(15.6\pm 0.8\) & \(18.3\pm 0.7\) \\ Total root length \(\pm\)495\% (mm) & \(53.3\pm 1.5\) & \(70.7\pm 3.2\) & \(49.4\pm 1.8\) & \(53.7\pm 1.4\) & \(54\pm 3.1\) & \(43.4\pm 3.6\) & \(53.4\pm 3.4\) \\ Raw mass of shoots & & & & & & \\ per plant \(\pm\)495\% (mg/pcs) & \(8.1\pm 1.4\) & \(12.5\pm 2.1\) & \(8.4\pm 2.2\) & \(6.8\pm 1.1\) & \(8.4\pm 2.6\) & \(6.9\pm 2.3\) & \(8.6\pm 1.7\) \\ Dry mass of shoots & & & & & & \\ per plant \(\pm\)495\% (mg/pcs) & \(1.5\pm 0.2\) & \(2.0\pm 0.4\) & \(1.4\pm 0.3\) & \(1.5\pm 0.2\) & \(1.4\pm 0.3\) & \(1.3\pm 0.3\) & \(1.6\pm 0.3\) \\ Raw mass of roots & & & & & & \\ per plant \(\pm\)495\% (mg/pcs) & \(9.6\pm 2.3\) & \(15.5\pm 2.4\) & \(5.8\pm 1.1\) & \(4.2\pm 0.8\) & \(6.1\pm 0.8\) & \(5.2\pm 0.4\) & \(6.5\pm 1.4\) \\ Dry mass of roots & & & & & & \\ per plant \(\pm\)495\% (mg/pcs) & \(1.7\pm 0.3\) & \(2.3\pm 0.3\) & \(1.5\pm 0.2\) & \(1.6\pm 0.1\) & \(1.3\pm 0.2\) & \(1.2\pm 0.07\) & \(1.3\pm 0.2\) \\ Optimization \(\pm\)495\% & \(0.73\pm 0.07\) & \(0.75\pm 0.18\) & \(0.80\pm 0.10\) & \(0.91\pm 0.04\) & \(0.75\pm 0.10\) & \(0.70\pm 0.19\) & \(0.81\pm 0.10\) \\ Number of sets, ps & 16 & 6 & 5 & 4 & 4 & 2 & 4 \\ Total number of plants, ps & 767 & 233 & 347 & 366 & 135 & 80 & 130 \\ \hline \multicolumn{7}{c}{7 th day of Germination} \\ \hline Shoot length \(\pm\)495\% (mm) & \(94.5\pm 3.1\) & \(103\pm 7.6\) & \(83\pm 3.1\) & \(80\pm 2.6\) & \(91.5\pm 4.8\) & \(73.4\pm 5.3\) & \(89\pm 4.6\) \\ Root length \(\pm\)495\% (mm) & \(64.1\pm 1.6\) & \(55.5\pm 3.0\) & \(49\pm 1.7\) & \(48\pm 1.7\) & \(42.2\pm 2.4\) & \(26.6\pm 1.2\) & \(47.6\pm 2.6\) \\ Total root length \(\pm\)495\% (mm) & \(261.2\pm 9.2\) & \(222\pm 16.4\) & \(217\pm 10.5\) & \(220\pm 10.2\) & \(197\pm 17.0\) & \(131\pm 7.9\) & \(203\pm 15.8\) \\ \multicolumn{7}{c}{Raw mass of shoots} \\ \hline \multicolumn{7}{c}{Raw mass of shoots} \\ \hline per plant \(\pm\)495\% (mg/pcs) & \(67.0\pm 4.3\) & \(70.5\pm 5.3\) & \(60\pm 7.0\) & \(54\pm 9.7\) & \(62.6\pm 5.3\) & \(52.1\pm 10.4\) & \(60.8\pm 4.2\) \\ Dry mass of shoots & & & & & & \\ per plant \(\pm\)495\% (mg/pcs) & \(7.2\pm 0.8\) & \(7.2\pm 0.7\) & \(6.9\pm 0.8\) & \(6.6\pm 0.6\) &  
\begin{table}
\begin{tabular}{c c c c c c c c c}  & **Control** & **4.4 kHz/1.5 kV** & **4.4 kHz/2.4 kV** & **16 kHz/1.5 kV** & **16 kHz/2.4 kV** & **5 kV/cm 1 min** & **5 kV/cm 10 min** & **16 kHz/ 1.5 \(\pm\) 5 kV** \\ \hline \multicolumn{1}{c}{3 rd day of Germination} & & & & & & & & \\ \hline \multicolumn{1}{c}{ Shoot length \(\pm\)\(\pm\)95\% (mm)} & \(10.6\pm 0.4\) & \(9.6\pm 0.7\) & \(8.8\pm 0.6\) & \(12\pm 0.4\) & \(9.8\pm 0.7\) & \(9.9\pm 0.7\) & \(10.8\pm 0.5\) & \(10.6\pm 0.5\) \\ \multicolumn{1}{c}{Root length \(\pm\)\(\pm\)95\% (mm)} & \(19.3\pm 0.4\) & \(18.3\pm 0.7\) & \(17\pm 0.5\) & \(21\pm 0.4\) & \(18.7\pm 0.7\) & \(19.6\pm 0.73\) & \(18.4\pm 0.5\) & \(20.0\pm 0.5\) \\ \multicolumn{1}{c}{Total root length \(\pm\)\(\pm\)95\% (mm)} & \(55.5\pm 1.6\) & \(51.7\pm 3.3\) & \(48\pm 2.4\) & \(61\pm 1.8\) & \(52.7\pm 3.2\) & \(57.1\pm 3.3\) & \(52.7\pm 2.2\) & \(57.1\pm 2.3\) \\ \multicolumn{1}{c}{Raw mass of shoots} & & & & & & & & \\ \multicolumn{1}{c}{Dry mass of shoots} & & & & & & & & \\ \multicolumn{1}{c}{Per plant \(\pm\)\(\pm\)95\% (mg/pc)} & \(1.4\pm 0.2\) & \(1.4\pm 0.5\) & \(1.2\pm 0.1\) & \(1.4\pm 0.2\) & \(1.5\pm 0.3\) & \(1.3\pm 0.4\) & \(1.3\pm 0.3\) & \(1.5\pm 0.4\) \\ \multicolumn{1}{c}{Raw mass of roots} & & & & & & & & \\ \multicolumn{1}{c}{Per plant \(\pm\)\(\pm\)95\% (mg/pc)} & \(8.0\pm 2.1\) & \(5.2\pm 3.1\) & \(6\pm 3.0\) & \(8.3\pm 2.6\) & \(5.1\pm 3.4\) & \(5.0\pm 3.6\) & \(7.4\pm 2.5\) & \(7.0\pm 1.9\) \\ \multicolumn{1}{c}{Dry mass of roots} & & & & & & & & \\ \multicolumn{1}{c}{Dry mass of roots} & & & & & & & & \\ \multicolumn{1}{c}{Per plant \(\pm\)\(\pm\)95\% (mg/pc)} & \(1.5\pm 0.2\) & \(1.1\pm 0.4\) & \(1.1\pm 0.3\) & \(1.4\pm 0.3\) & \(1.3\pm 0.2\) & \(1.2\pm 0.3\) & \(1.3\pm 0.4\) & \(1.4\pm 0.3\) \\ \multicolumn{1}{c}{Germination \(\pm\)95\% (mm)} & \(0.75\pm 0.06\) & \(0.72\pm 0.18\) & \(0.70\pm 0.11\) & \(0.80\pm 0.07\) & \(0.77\pm 0.11\) & \(0.79\pm 0.13\) & \(0.70\pm 0.12\) & \(0.69\pm 0.10\) \\ \multicolumn{1}{c}{Number of sets, pcs} & & & & & & & & \\ \multicolumn{1}{c}{Total number of plants, pcs} & & & & & & & & \\ \multicolumn{1}{c}{\(\phantom{\text{\text{\text{\text{\text{\text{\text{\text{\text{\texttext{\texttexttexttext{\texttexttexttexttexttext  \text