## 3 Results and Discussion
### Elements Concentrations in Leaves of Pumpkin
\begin{table}
\begin{tabular}{c c c c c c} \hline
**Chlorophyll Fluorescence** & **Stage of** & **C** & **L** & **\(p\)** & **AgNC** \\
**Parameters** & **Development** & & & & \\ \hline \multirow{4}{*}{F} & SI & 785 \(\pm\) 70.45 (\({}^{1}\)) a & 867 \(\pm\) 98.30 a & 803 \(\pm\) 89.18 a & 465 \(\pm\) 77.69 b \\  & SII & 392 \(\pm\) 109.97 b & 412 \(\pm\) 57.10 ad & 432 \(\pm\) 63.59 ad & 593 \(\pm\) 104.20 ac \\  & SIII & 565 \(\pm\) 68.82 a & 573 \(\pm\) 91.16 a & 517 \(\pm\) 121.87 ac & 624 \(\pm\) 101.60 ab \\  & SIV & 632 \(\pm\) 78.62 b & 732 \(\pm\) 14.20 ac & 657 \(\pm\) 111.42 bc & 300 \(\pm\) 74.63 ad \\ \hline \multirow{4}{*}{F\({}_{\text{m}}\)} & SI & 2465 \(\pm\) 458.68 a & 2317 \(\pm\) 573.89 a & 2694 \(\pm\) 447.17 a & 1622 \(\pm\) 213.46 b \\  & SII & 1006 \(\pm\) 386.54 b & 1241 \(\pm\) 251.49 b & 1143 \(\pm\) 217.55 b & 2180 \(\pm\) 239.68 a \\  & SIII & 1813 \(\pm\) 257.01 a & 1993 \(\pm\) 255.61 ab & 1616 \(\pm\) 441.41 ac & 1901 \(\pm\) 239.71 ab \\  & SIV & 2149 \(\pm\) 445.82 a & 2195 \(\pm\) 423.10 a & 2143 \(\pm\) 403.29 a & 902 \(\pm\) 209.19 b \\ \hline \multirow{4}{*}{PAR} & SI & 158 \(\pm\) 39.59 b & 259 \(\pm\) 33.88 ac & 193 \(\pm\) 93.20 b & 131 \(\pm\) 28.22 bd \\  & SII & 107 \(\pm\) 17.04 a & 106 \(\pm\) 30.54 a & 99 \(\pm\) 30.13 a & 65 \(\pm\) 22.58 b \\  & SIII & 70 \(\pm\) 7.53 b & 57 \(\pm\) 14.92 b & 70 \(\pm\) 16.47 b & 141 \(\pm\) 40.69 a \\  & SIV & 74 \(\pm\) 24.52 b & 112 \(\pm\) 36.62 b & 100 \(\pm\) 66.12 b & 302 \(\pm\) 58.66 a \\ \hline \multirow{4}{*}{Y(II)} & SI & 0.677 \(\pm\) 0.071 a & 0.591 \(\pm\) 0.20 ac & 0.693 \(\pm\) 0.07 ab & 0.712 \(\pm\) 0.03 ab \\  & SII & 0.578 \(\pm\) 0.11 b & 0.659 \(\pm\) 0.06 ad & 0.611 \(\pm\) 0.09 bd & 0.728 \(\pm\) 0.73 ac \\  & SIII & 0.685 \(\pm\) 0.04 a & 0.713 \(\pm\) 0.03 ab & 0.675 \(\pm\) 0.04 a & 0.667 \(\pm\) 0.07 ac \\  & SIV & 0.693 \(\pm\) 0.08 a & 0.662 \(\pm\) 0.05 a & 0.683 \(\pm\) 0.07 a & 0.646 \(\pm\) 0.09 a \\ \hline \multirow{4}{*}{ETR} & SI & 44.49 \(\pm\) 11.65 b & 65.87 \(\pm\) 40.53 a & 55.78 \(\pm\) 12.26 b & 39.34 \(\pm\) 8.79 b \\  & SII & 26.18 \(\pm\) 7.70 a & 29.73 \(\pm\) 9.61 ab & 25.00 \(\pm\) 7.54 a & 19.88 \(\pm\) 7.13 ac \\  & SIII & 20.16 \(\pm\) 2.99 b & 17.06 \(\pm\) 4.42 bd & 19.81 \(\pm\) 5.24 bd & 39.41 \(\pm\) 11.57 ac \\  & SIV & 21.01 \(\pm\) 6.43 b & 30.61 \(\pm\) 8.41 bd & 27.54 \(\pm\) 7.51 bd & 81.62 \(\pm\) 17.05 ac \\ \cline{2-6}  & SI & 28.53 \(\pm\) 3.58 b & 29.73 \(\pm\) 3.45 bd & 32.46 \(\pm\) 2.48 ad & 32.87 \(\pm\) 3.61 ac \\  & SII & 18.6 \(\pm\) 2.14 a & 20.13 \(\pm\) 1.85 a & 19.97 \(\pm\) 3.87 a & 20.61 \(\pm\) 3.49 a \\  & SIII & 15.58 \(\pm\) 4.35 b & 18.24 \(\pm\) 5.37 b & 16.02 \(\pm\) 2.99 b & 20.47 \(\pm\) 3.49 a \\  & SIV & 17.90 \(\pm\) 5.28 a & 16.72 \(\pm\) 3.84 a & 17.53 \(\pm\) 5.82 a & 19.40 \(\pm\) 1.69 a \\ \hline \end{tabular}  
* SD; C—control; L—laser light; \(p\)—magnetic field; AgNC—silver nanocolloid; SI—budding, SII—onset of flowering, SIII—flowering, SIV—fruticification. Different letters a –a—significant differences (\(p\leq 0.05\)), the same letters—no difference between the control and study groups.  
\end{table} 
Table 4: Chlorophyll fluorescence parameters in the leaves of pumpkin grown from seeds subjected to the respective pre-sowing treatments.