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• Rheological evaluation of industrial tomato

  137-140

  Anna Rita Tóth

  Mária Takácsné Hájos

  Views:

  326

  Today, tomato has the second largest harvesting area globally, and the fourth largest in Hungary. The importance of industrial tomato is growing year by year, and one of the most important tasks is to satisfy the needs of the industry. To meet these needs, the producer has to find the proper genotype, which can achieve up to 100 t ha^-1 crop yield. This quality has high importance to be researched.

  The experiment was carried out in the Botanical and Exhibition Garden of the University of Debrecen, with 3 examined genotypes. The planting date was 3 of May 2018. The harvesting was two-threaded. On 27 of July the physical parameters – fruit shape index (length/diameter), firmness (kg cm^-2), water-soluble dry matter content (Brix%) and weight of the berries (g) – were evaluated. On 15 of August the rheological parameters were examined – the force needed to tear the skin – bioyield point (g) and flesh firmness (g).

  The fruit shape index was oval (between 1.19 and 1.24) for all the examined genotypes. The firmness was between 0.92 (UG1122713 F₁) and 1.05(Prestomech F₁) kg cm^-2, which compliance the needs of the industry. The water-soluble dry matter content was suitable, with a value between 4.49 (Prestomech F₁) and 4.65 (UG1122713 F₁) Brix%. The weight of the berries was between 45.94 (UG989 F₁) and 49.37 (Prestomech F₁) g per piece.

  The bioyield point was between 76.00 (UG1122713 F₁) and 85.16 (UG989 F₁) g. The flesh firmness was between 33.68 (UG1122713 F₁) and 42.81 (UG989 F₁) g.

  Finally, we can conclude based on the obtained data that the UG989 F₁ hybrid was the most proper for the applied cultivation conditions. This genotype can be recommended for the farmers even in extreme weather conditions.

• The effect of crop year on fruit weight and internal quality characteristics of selected plum cultivars in the Újfehértó Fruit Gene Bank

  77-85

  Enikő Somogyi

  Anita Bodó Lászlóné Jakab

  Tamás Rátonyi

  Views:

  3

   The competitiveness of the plum sector in Hungary has gradually declined over the past decade, and the area under cultivation has been steadily decreasing. In contrast, plum production has increased at the European Union level. The main causes of the domestic decline include the disappearance of plantations, severe frost damage following mild winters, and extremely dry weather conditions. Plums from the Balkans are gradually displacing Hungarian plums from the European market. In recent years, climate change, labour shortages, and increasing input costs have posed significant challenges to the sector. Therefore, research related to plum cultivation is essential to improve the market position of the plum industry.

  In this study, we examined plum cultivars from the gene bank collection of the Research Institute of the University of Debrecen, AKIT Újfehértó, as follows:

  1. Evaluation of the quality characteristics and fruit traits of the selected plum cultivars,
  2. Investigation of the effects of different years on the quality characteristics of the selected cultivars,
  3. Determination of correlations among the quality traits of the plum cultivars.