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• The Role and Importance of Variety in Intensive Cherry Production

  81-84

  Katalin Király

  István Gonda

  Views:

  62

  Increasing the intensity of plantations is a basic precondition for the renewal of fruit growing in Hungary.
  The intensification of production of stone-fruit species is difficult for several reasons. In particular, knowledge of dwarfing rootstock is very limited. In this study, we tried to achieve smaller-sized, intensive crown formation by co-ordinating the date and degree of pruning.
  In intensive cherry production, the most important variety-dependent characters determining the formation of the required productive surface are vigour of growth, branching potential and quantity and quality of the buds.
  In this paper we have demonstrated that significant differences exist between varieties in these characters.

• Sunflower in Romanian agriculture

  153-163

  Nicolae Csép

  Views:

  190

  Romania is one of the largest producers of sunflower closely followed by Bulgaria, Hungary, France and Spain. The total sunflower production increased after 1990, due the increase of cultivated surface during the moderate yield average increasing rate. Last year, Romania was ranked first in the European Union (EU) for the area cultivated with sunflower and the total production of sunflower seeds, according to the National Statistics Institute (INS). Romania's position on the map of sunflower producers area is supported by about 1 million hectares sown. In the segment of sunflower productivity, Romania has an unfavourable position, situated in the last places in the classification of the EU's most productive agricultures. In order to increase production per hectare, it is required to perform measures aimed at the elements of sustainable cultivation technology, including the stability of the production level by ensuring phytosanitary protection.

• Correlations Between the Crown Sizes, Pruning Times and Fruit Quality of Sour Cherry Cultivars

  90-94

  Katalin Király

  Views:

  156

  To increase the intensiveness of sour cherry production, i.e. the use of smaller trees, it is necessary to adopt growth-moderating techniques rather than using dwarfing rootstocks. Apart from the traditional technique of using rootstocks that support stronger growth, new or rarely-used techniques and methods must be adopted. Pruning should be carried out in the summer rather than in the winter, the optimal period being 1-3 weeks after harvest.
  A combination of the increase in favourable exposure-time and smaller crown sizes make higher tree densities (tree/ha) and better utilisation of the crown (specific cropload) possible.
  The systematic use of summer pruning leads to better quality fruit.