Scientific Papers Series B Horticulture

good quality fruits. Experience has been carriedout in 2012 in Poiana, Ialomita county in hightunnel of 1000 m 2 .The experiment has been carried out in randomblocks in three repetitions and experimentalvariants consist of three products: two foliarfertilizers and one growth promoter, whichwere compared with the control (Table 1).Table 1. Experimental variants – variety Ghittia /hybridBalkan-2012Variants/treatments SpecificationV1 Control(untreated) -V2Folimax-0.3%V3Agriphyte-0.3%V4 P& R-0.5%Foliar fertilizer with microelements; ensuresteady growth, disease resistance, increasethe number of fruits and production.Foliar fertilizer with 33% phosphorus, and28% potassium; secondary has systemicfungicide properties.Organic product with role of protection andrecovery of the plants from damage causedby extreme temperatures or diseases; help toa better use of the nutrients in different typesof soils; increase the assimilation of somenutrients (Fe, Zn, Mn, B, Cu); may be usedtogether with protective agents for plants(herbicides, insecticides, fungicides).Biological material has been represented byvariety Ghittia and hybrid Balkan F 1 .Ghittia: late tomatoes indefinite, the plants arevigorous, fruits are round flattened with 4-6seeds lodge, uniform, of 250-300g weight and4-5 fruit in a cluster, fruits are resistant tocracking, with good firmness. Recommendedfor cultivation in plastic tunnels and field.Balkan: early tomatoes, semi-determinedgrowth. The fruits are rounded, uniform, of100-120g weight, 6 fruit in a cluster.Recommended for cultivation in plastic tunnelsand field.The technology used in the experiences wasselected from the literature for tomatoes (Ciofuet al., 2004).Under climatic conditions of the year 2012, theculture has been established by planting ofseedling on 25 of the April. The seedling wasby 53 days old, 20-22 cm height, 4-5 mmthickness of stem, 5-6 leaves and it has firstinflorescence. The density used was 36.000plants/ha. Care work consisted in watering,hoeing, weeding, removing of early shootswhenever is necessary, sustaining plants on132strings, wire tapping for stimulation ofpollination, pest and diseases control. It hasbeen applied fertilization with differentfertilizers (Folimax, Agriphyte) and growthpromoter (P& R), depending on experimentalvariants, at two weeks and one month fromplanting.Harvesting was done from the second decade ofthe July, by variants.During the experimentation period has beencarried out observations, measurements anddeterminations, which were used specificworking methods namely:Phenological determinations: sowing date, dateof emerging, date of planting, date of floweringand date of harvest.Production potential was determined byrecording the number of fruits/plant, averagemass of fruits and by calculation of the averageproduction/plant and ha, for each variantstudied. The fruits were harvested by qualityclasses according to the average weight offruits as follows:-extra-greater than 80 g;-I-60-80 g;-II-40-60 g;-understas-less than 40 g.The results were interpreted statistically byanalysis of variance-Student test (Ardelean, etal., 2007).Laboratory analysis at tomato fruits:-biochemical analysis: vitamin C content(mg/100 fresh product), soluble carbohydrates(%), acidity (%), lycopene (ppm). Wereharvested fruit samples for biochemicalanalysis of three different harvests and resultsare average of these samples.RESULTS AND DISCUSSIONSFrom the analysis of the results it can beobserved that, regardless of treatment, theproductions were superior to the untreatedcontrol (Table 2, Figure 1 and 2). Regardless ofthe variety the greatest production was obtainedwhen applying foliar fertilization withAgriphyte (66.957 t/ha for Ghittia variety,respectively Balkan F 1 hybrid 69.626 t/ha). Thelargest share of total production was at qualityI. It can also notice a higher share of qualityextra in the case of Ghittia variety forAgriphyte treatment (40%).