Page 200 - AJWEP-v22i3

Vasylkovska, et al.

F = 0.00, F = 0.00, and F = 1.87 – do not exceed the between 11 and 13 days. In addition, the analysis identified
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tabulated value, confirming the adequacy of all models. the following rational values of the studied factors:
Response surfaces and scatter plots with histograms (i) The ЕМ-5 concentrate for pre-sowing seed
for plant height (Y ), time to reach the baby leaf stage (Y ), treatment ranged from 1.8% to 2.0%,
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fresh weight (Y ), and number of leaves (Y ) are shown (ii) The temperature of air and nutrient solution was
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in Figures 3-6.Based on the response surface analysis for maintained within 24 – 26°C,
the plant height, the optimal value was observed to be (iii) The nutrient solution concentration ranged from 2.3
between 3.8 and 4.4 cm. The analysis also identified the to 2.5 mS/cm.
following rational values of the studied factors: All factors were found to reduce the time required to
(i) The ЕМ-5 concentrate for pre-sowing seed
treatment ranged from 1.8% to 2.0%, reach the baby leaf stage, with the concentration of the
(ii) The temperature of air and nutrient solution was nutrient solution having the greatest influence.Based on
the response surface analysis for the fresh weight, the
maintained within 24 – 26°C,
(iii) The nutrient solution concentration ranged from 2.3 optimal weight was observed to be between 1.1 g and
1.3 g. The analysis also identified the following rational
to 2.5 mS/cm.
values of the studied factors:
Among these, the concentration of the nutrient (i) The EM-5 concentrate for pre-sowing seed
solution had the greatest impact on plant height.Based treatment ranged from 1.9 to 2.1%,
on the response surface analysis for the time to reach the (ii) The temperature of air and nutrient solution was
baby leaf stage, the optimal duration was observed to be maintained within 25 – 26°C,

Figure 7. Scatter plots with histograms illustrating the impact of the studied factors on plant height, time to
reach the baby leaf stage, fresh weight, and number of leaves

Volume 22 Issue 3 (2025) 194 doi: 10.36922/AJWEP025170132