## 3 Results and Discussion
### Effect of Biostimulant Application on Chemical Composition of Snap Bean  
The chemical composition of snap bean pods, including organic nutrients such as crude protein and total sugars, as well as inorganic nutrients (N, P, and K), were significantly enhanced by MLE applications compared to control and other treatments (Table 8). The chlorophyll concentration was significantly enhanced compared with that in the control in all extract treatments (Table 9). Previous results revealed that moringa leaf extract possesses high phytohormone content, particularly zeatin, gibberellins, and ABA [56; 57]. However, the present study revealed that MLE is rich in different phytohormone classes, particularly salicates, including benzoic, cinnamic, and salicylic acids. In addition, the leaves of moringa extract are rich in fundamental amino acids, minerals, vitamins (A, B1, B2, B3, C, and E), and antioxidant compounds such as phenolics [58; 59; 60; 61]. The chemical composition in the different treatments moderately matched both the ash and fat. Remarkably, there was an increase in crude protein and carbohydrates in plants treated with moringa extract and vermicompost compared with other biostimulants and the control. There were statistically significant differences in protein content between accessions. Vermicompost tea and moringa leaf extract treatments enhanced crude protein contents, which ranged from 29.22% to 29.98%, while humic acid, yeast extract, and the control (spraying with water) had protein content ranging from 25.42% to 28.17%, respectively. The fat content of the plants ranged from 0.32% to 0.36%. Plants that received the moringa leaf extract treatment had the highest fat content (0.36%). The increase in total sugars in snap bean pods due to MLE treatment may be attributed to the increased content of photosynthetic pigments. \begin{table}
\begin{tabular}{l c c c c c c} \hline \hline \multirow{2}{*}{**Treatments**} & \multicolumn{2}{c}{**No. of Pods/Plant**} & \multicolumn{2}{c}{**Yield of Pods/Plant (g)**} & \multicolumn{2}{c}{**Total Pods Yield**} \\  & **2018** & **2019** & **2018** & **2019** & **2018** & **2019** \\ \hline Control & 35.89 c & 48.89 b & 158.78 d & 186.33 c & 2.32 c & 4.58 d \\ \hline Yeast & 45.67 b,c & 64.33 a,b & 286.44 c & 299.44 b & 5.39 b,c & 7.17 c \\ \hline Humic & 57.22 a,b & 66.00 a,b & 325.78 b,c & 346.44 a,b & 6.05 a,b & 7.64 b,c \\ \hline Moringa & 68.44 a & 73.33 a & 397.33 a & 422.67 a & 8.22 a & 9.37 a \\ \hline Vermicompost tea & 67.00 a & 68.33 a,b & 338.89 b & 358.67 a,b & 6.94 a,b & 8.99 b \\ \hline \multicolumn{7}{l}{Values with different letters in columns (a–d) differ significantly (\(p<0.05\)) (\(t=6\)).} \\ \end{tabular}
\end{table} 
Table 6: Effect of different biostimulant extracts on the number of pods and green bean yield in growing seasons of 2018 and 2019. \begin{table}
\begin{tabular}{l c c c c c c c} \hline \hline \multirow{2}{*}{**Treatments**} & \multicolumn{2}{c}{**Length of Pod (cm)**} & \multicolumn{2}{c}{**Diameter of Pod (cm)**} & \multicolumn{2}{c}{**Fresh Weight of Pod (g)**} & \multicolumn{2}{c}{**Dry Matter Content of Pod (\%)**} \\ \cline{2-9}  & **2018** & **2019** & **2018** & **2019** & **2018** & **2019** & **2018** & **2019** \\ \hline Control & 14.72 d & 14.72 c & 0.75 c & 0.77 d & 5.00 c & 5.79 c & 9.74 c & 10.06 d \\ \hline Yeast & 15.78 c & 16.06 b & 0.89 b & 0.90 c & 5.87 b & 6.46 b & 10.09 b,c & 10.17 c \\ \hline Humic & 16.00 b,c & 16.28 a,b & 0.92 a,b & 0.92 b,c & 6.58 a,b & 6.96 a,b & 10.32 a,b & 10.59 b,c \\ \hline Moringa & 16.17 a & 16.72 a & 0.98 a & 1.01 a & 7.17 a & 7.78 a & 11.38 a & 11.44 a \\ \hline Vermicompost tea & 16.11 b & 16.44 a,b & 0.97 a & 0.98 a,b & 6.54 a,b & 6.97 a,b & 10.95 b & 11.07 b \\ \hline \hline \end{tabular}
\end{table} 
Table 7: Effect of different biostimulant extracts on pod quality of green bean in growing seasons of 2018 and 2019.