The influence of NANO-GRO^® organic stimulator on the yielding and fruit quality of field tomato (Lycopersicon esculentum Mill.)

The effect of different methods of NANO-GRO^® application on tomato plant growth and yield and its quality was determined. Four treatments were used: soaking seeds with NANO-GRO^®, plants spraying, double application: soaking seeds + plants spraying and a control without NANO-GRO^®. The cultivar Mieszko F₁ was used for the study. A significant influence of NANO-GRO^® application method on tomato plant growth, yield and quality was observed. Pre-sowing application positively influenced plant height and the thickness of the stems. The highest total and marketable yield was observed in plants whose seeds were soaked with NANO-GRO^® (respectively 87.02 and 53.13 t ha⁻¹) and in those with double application (respectively 73.48 and 45.67 t ha⁻¹). The lowest marketable yield was found in the plants from the control (37.01 t ha⁻¹). The highest lycopene content compared to the control was measured in fruits from plants sprayed with NANO-GRO^®.