Investigation of the fertilization biology of some sweet cherry cultivars grown in the Central Northern Anatolian Region of Turkey

  • Beyhan N
  • Karakaş B
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The experiments were carried out between 2003 and 2005 in the Province of Amasya. The first objective of the study was to determine the best pollinizer for the cultivar '0900 Ziraat' which is the most popular sweet cherry cultivar (Prunus avium L.) in Turkey. The '0900 Ziraat' was used as a female parent and 'Türkoǧlu', 'Köroǧlu', 'Kargayüreǧi', 'Haci{dotless} Ali', 'Starks Gold' and 'Geçkiraz' were used as pollinizer cultivars. In 2003, for the hand cross pollination combinations, fruit set was between 31.25% and 42.80%. In 2004, fruit set was reduced by spring frost and was between 9.69% and 15.24%. Additionally, the blooming periods of the experimental cultivars, fruit set of open pollination and hand self pollination were examined. The fruit set ratios of all tested cultivars under open pollination conditions varied between 26.73% and 53.49% in 2003 and 4.38% and 38.35% in 2004. 'Geçkiraz' had the highest fruit set owing to its late flowering date. For open pollination, fruit set values of '0900 Ziraat' were lower than hand cross pollination with other cultivars in 2003 when the results of both treatments are compared. On the contrary, fruit set was higher than hand cross pollination in 2004. In the present study, pollen germination values varied greatly among year, cultivar and sucrose concentration. Viability percentages were generally high, not less than 66%. According to phenological observations, partial or complete overlapping of the flowering period of '0900 Ziraat' and its possible pollinizer cultivars were observed in 2003 and 2005. But in 2004, the flowering period overlapped for only '0900 Ziraat' and 'Geçkiraz' cultivars. When blooming times are taken into consideration, 'Geçkiraz' was found to be the best pollinizer cultivar. © 2009 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • '0900 Ziraat'
  • Fruit set
  • Pollination
  • Prunus avium L.

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