Published in Scientific Papers. Series B, Horticulture, Vol. LXVI, Issue 1
Written by Gheorghița HOZA, Maria DINU, Alexandra BECHERESCU, Rodica SOARE, Tobias GRĂDINARU
The research was made with a tomato spring culture, in solarium, in 2016 and 2017, in Fierbintii de Jos village, Ialomita county, on an area of 2000 m2. Four new tomato hybrids were used respectively Zadurella F1, Matissimo F1, Yigido F1 and SV 4224 TH F1. The tips of the main stems were removed at four inflorescences and the layout of the experiment was made in randomized blocks with three repetitions. The tomatoes were cultivated on a soil with neutral pH, with an optimal content of ammonium nitrate and average content of nitric nitrogen, phosphorus, organic matter, calcium, sodium and soluble salts, with very low content of potassium and very high of magnesium. The main fertilization was made through applying 30t/ha of organic fertilizers while preparing the soil. During the vegetation period the fertilization was phasial with products from the Tecamin brand, appropriate for each phenophase in part. The results obtained proved that all hybrids used were highly productive, the commercial production per each plant being between 2.48 kg and 3.62 kg. The commercial production per m2 varied between 9.42 kg and 13.76 kg. The average fruit weight was between 167 and 214 g. All hybrids produced large, firm fruits, with a content of dry soluble substance of roughly 5%, the titratable acidity between 0.22% for Yigido F1 and 0.43 % for Zadurella F1. The fruits had a C vitamin content between 14.42 mg/100 g at Yigido F1 and 23.00 mg/100 g at Zadurella F1.
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