## 3 Results and Discussion
### Physical Characteristics  
After the statistical analysis of the results using the Tukey test for fresh mass of the aerial part in relation to the control treatment T1 it was observed that, with the exception of the treatments T4, T5, the other two treatments presented a statistical difference, (\(p<0.05\)), and the T2 treatment showed greater numerical difference (Table 3). These results suggested that the lowest doses of Reabilit(r) Algas influence heavier production of fresh mass of the aerial part (FMAP) than the higher doses. The agronomic efficiency index (AEI, %) was higher with the increase of, the number of leaves, dry mass of aerial part and root, length of aerial part and root, in relation to the control (T1). The T2 treatment (Reabilit(r) Algas 0.5%) presented, in general, highest values of AE in number of leaves (LN, \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Treatment** & **NP** & **mmol m\({}^{-2}\) s\({}^{-1}\)** & **AE (\%) in Relation to T1** \\ \hline T1-Control & 3 & 321.4 & 00 \\ T2-Reabilit® Algas 0.5\% & 3 & 408.0 & 27 \\ T3-Reabilit® Algas 1.0\% & 3 & 361.2 & 12 \\ T4-Reabilit® Algas 1.5\% & 3 & 332.9 & 04 \\ T5-Reabilit® Algas 2.0\% & 3 & 385.0 & 20 \\ \hline \hline \end{tabular} Values of SC varied from 408 (T2) to 321.4 (T1). The highest AE value was observed in plants treated with T2, with AE 27% higher than Control.  
\end{table} 
Table 2: Values for number of plants (NP), stomatal conductance (SC) and agronomic efficiency (AE), in relation to control T1, performed in phenological stage: physiological maturation of pepper plants, at 12 h.  
148%), fresh mass of the aerial part (FMAP, 127%), dry mass of the aerial part (DMAP,113%) and root dry mass (RDM, 167%) in relation to the control (Table 3). Higher fresh mass production in the pepper plants treated with T2 and T3 can probably be a result of the greater plant capacity to synthesize photo-assimilates. These plants showed higher performance of length of the aerial part (LAP), root length (RL), root fresh mass (RFM) and RDM. This can be an indicator that plants which had received lower biostimulant concentrations can be better adapted to water stress conditions [27; 28]. Therefore, regarding the results of the physical characteristics evaluated in the pepper plants, the use of the Reabilit(r) Algas, in pepper culture (_Capsicum annuum_ L.) can be highly viable. The increase in agronomic efficiency in root length, fresh mass and dry root mass, is highlighted by the application of the product Reabilit(r) Algas versus its absence, which were in the order of 123% to 230% for RL, and 94% to 165% for RFM, and 25% to 167% for RDM. It was observed that the root dry mass in Treatment T2 reached 167% more in the agronomic efficiency index compared to the Control, which can be inferred that this volume of roots contributed to greater nutrient absorption, reflecting in the total fruit weight, significant after <0.05 (Table 4). As general requirements for commercial production, peppers must have well-defined varietal characteristics, be physiologically developed, well-formed, clean, uniform in colour, free from mechanical and physiological damage, free from pests and diseases and free from substances harmful to health. As their mean longitudinal diameter (LD) was between 82.4 and 96.7 mm and mean transverse diameter (TD) was between 63, 22 and 51.1 mm with the L/T ratio between 1.4 and 1.76 (Table 4). These LD and TD values demonstrate that more than 90% of the fruits had a tradable size, belonging to Class 8 (www.hortibrasil.org.br accessed in March 2020). Total fruit weight in plants treated with T2 was the highest, 314 kg.1000 plants\({}^{-1}\).collection\({}^{-1}\), followed by the production in T3 and T5 plants (Table 4). The values of total fruit mass-TFRM, were significantly different (\(p<0.05\)) in treatments T2, T3 and T5, representing an increase in the agronomic efficiency index (69%, 59% and 44%, respectively) with applications of Reabilit(r) Algas, compared to the control.