The aim of the study performed in 2007–2010 was to evaluate the yielding
of indeterminate tomato in the field at the stakes in the region of Sandomierz.
The study was conducted on moderate alluvial soils in the Vistula river valley.
The studied object consisted of tomato 'Faustine F1' and 'Brooklyn F1' cultivars.
Potted seedlings were planted after 15 May and the plants were carried out for
a single shoot by varying the harvest frequency every 2, 4, and 6 days. Fruits
were harvested at the stage of full coloring. Based on the tests, a significant
dependence between the frequency of harvest vs. total and marketable yields of
tomato fruits, was recorded. Significantly the highest total yield (95.0 t·ha^-1)
was obtained by harvesting the fruits every 4 days, while the lowest – every
2 days (92.8 t·ha^-1). The largest marketable yield was achieved by harvesting
the fruits every two and four days, although no significant difference were observed
between these combinations. Harvesting the fruits every 2 days, the largest share
of marketable in total yield was recorded. Analysis of the results also showed
a remarkable correlation between the frequency of harvests and average weight
of a single fruit, which was the highest at harvests made every 4 and 6 days;
there were no significant differences here, either.