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• The situation of the Hungarian apricot farming and its developmental tendencies

  163-170

  Réka Pleszkó

  Views:

  123

  The EC has declared „gönci magyar kajszi” as a product of specific origin with geographicald enomination. The „pálinka”isregistered Hungarian productin the EU. The micro-region of apricot production, named Gönc, has the privilege to utilize the great potential for rural development by its apricot production. To determine the development potential connected to apricot, needs through investigations on apricot production.This paper investigate apricot production at global, European and national levels. At national level each key aspects of apricot production have been analized. The final conclusions referring to Gönc micro-regionare: Northern Hungary region has got the biggest apricot area(within that Gönc has got outstanding role). The share of apricot cultivars of gönci origin ”has got overwhelming role in the Hungarian Cultivar assortment, the living tradition of production in this micro-region makes it possible, that gönci apricot will contribute to the overall socio-economic development in the region to a remarkable extend.

• SSR based characterization of peach (Prunus persica L.) and apricot (Prunus armeniaca L.) varieties cultivated in Hungary

  17-24

  Janka Bedő

  Eren Baris

  Zsolt Szani

  Dezső Surányi

  Erzsébet Kiss

  Anikó Veres

  Views:

  265

  The SSR (Simple Sequence Repeat) markers allow the discrimination of the cultivars and determination its specific DNA fingerprints. The aim of this research was to evaluate fifteen apricot (Prunus armeniaca L.) and fifty-one peach (Prunus persica L.) genotypes cultivated in Hungary to obtain their DNA fingerprints in 6 SSR (Simple Sequence Repeats) loci by allele numbers and sizes.

  DNAs were extracted from leaves. PCR was carried out with CY-5 fluorescent labeled Prunus microsatellite markers and the products were separated on polyacrylamide gel with ALF (Automated Laser Flourometer)-Express II.

  According to our results, in the case of peach genotypes, all 6 SSRs were able to amplify alleles. UDP 96 005 was the most informative marker and UCDCH 17 was the least due to its monomorphic pattern. Regarding the apricot samples BPPCT 041 did not amplify any allele. In the case of P. armeniaca UDP 96 005 had the highest heterozygosity index as well and the highest number of alleles. The least informative marker was the UCDCH 17. Since the 6 SSR were not enough to discriminate the apricot and peach genotypes, it is suggested to use more SSR primers.

• Comparison of apricot cultivars for suitability for organic growing

  63-65

  Péter Dremák

  Views:

  60

  Nowadays, important task is using more widely the environmentally friendly production technologies. There are considerable differences
  among technologies using reduced spray programs (integrated and organic) in plant protection and plant nutrition.
  In this case integrated production has a better position as roles for organic production more strict and due to this fruits has an obvious
  temporal and permanent reduction in tree conditions. Fitotechnical elements and renewal and regeneration of cultivars are important
  factors for offseting or delaying of condition weakening.
  In this study, 5 apricot cultivars (not pruned for 8 years) were compared in their characteristics (assessment of inactive, semi-active and
  active plant parts).
  Our study showed that there were 50-70% differences among observed characteristics. Our study confirmed those cultivars which are
  suitable for organic production and which one more resistant to condition weakening and which one able to tolerate negative technological
  effects.

• Effect of Storage on Fruitquality of Apricot (Prunus Armeniaca)

  164-169

  Gábor Drén

  József Racskó

  Sándor Thurzó

  Views:

  96

  The quality of a product is determined by numerous characteristics. As quality characteristics are polygenic, they cannot be improved easily. Moreover, there often is a negative correlation between the different parameters in the case of apricot. The firmness of fruits decreases with increasing size. The year effect also has a great influence on the expression of the potential quality of the given cultivar.
  Our examinations were carried out in 2004 at Boldogkőváralja, in the cold storage plant of the Northcot Ltd. We monitored the development of fruits from fructification until harvest, and also the quality changes during storage. 100 fruits were observed from each cultivar directly after harvest. We measured height, width, weight, firmness, dry matter content and seed weight. From each cultivar, 100 fruits were stored, of which 25 fruits were observed each week. The value and the dynamics of the changes in the parameters compared to the values at harvest varied greatly for the different cultivars. Strong correlations between the parameters have not been found within one cultivar either. The heavier fruits did not lose more weight, either in absolute value or relatively, than the lighter fruits. The increase in the firmness of fruits was not accompanied with a desirable decrease in the dry matter content.