Evaluation of Susceptibility of Different Pear Hybrid Populations to Fire Blight (Erwinia amylovora)

  • Yasemin EVRENOSOĞLU Eskisehir Osmangazi University, Faculty of Agriculture, Department of Horticulture, 26160, Eskisehir
  • Adalet MISIRLI Ege University, Faculty of Agriculture, Department of Horticulture, Bornova, Izmir
  • Hikmet SAYGILI Ege University, Faculty of Agriculture, Department of Plant Protection,
  • Emre BİLEN Ege University, Faculty of Agriculture, Department of Horticulture
  • Özlem BOZTEPE Ege University, Faculty of Agriculture, Department of Horticulture, Bornova, Izmir
  • Nihal ACARSOY Ege University, Faculty of Agriculture, Department of Horticulture

Abstract

Fire blight disease caused by pathogenic bacterium Erwinia amylovora, is the serious disease of pear, and there is not a certain chemical management against this disease except antibiotic-type compounds such as streptomycin. It is very important to improve new fire blight resistant cultivars in case of integrated disease management. With this purpose, different crosses have been made between Pyrus communis varieties that have good fruit characteristics and resistant cultigens. Besides, self and open pollination treatments have been carried out in maternal plants. The disease resistance level of the hybrids obtained from these combinations was determined by artificial inoculations by Erwinia amylovora in greenhouse conditions. A total of 3284 hybrids were inoculated, and 2631 of them survived and were distributed to different susceptibility classes. 19.88% of the inoculated hybrids was killed by Erwinia amylovora. Total distribution of the hybrids to susceptibility classes was as 6.18% in class “A- slightly susceptible”, 3.11% in class “B- less susceptible”, 8.89% in class “C- mid-susceptible”, 20.28% in class “D- susceptible”, and 61.54% in class “E- very susceptible”. Majority of class “A- slightly susceptible” hybrids were obtained from ‘Magness’ x ‘Ankara’ combination. ‘Kieffer’ x ‘Santa Maria’, ‘Kieffer’ open pollination, ‘Magness’ x ‘Akça’, ‘Magness’ x ‘Kieffer’, ‘Magness’ x ‘Santa Maria’, ‘Mustafa Bey’ x ‘Moonglow’ treatments displayed good results with respect to “A- slightly susceptible” character. It is very important to evaluate these hybrid pear populations through different fruit and tree characteristics in the future.

Metrics

Metrics Loading ...

Author Biographies

Yasemin EVRENOSOĞLU, Eskisehir Osmangazi University, Faculty of Agriculture, Department of Horticulture, 26160, Eskisehir
Horticulture Breeding and resistance
Adalet MISIRLI, Ege University, Faculty of Agriculture, Department of Horticulture, Bornova, Izmir
Horticulture Breeding and resistance
Hikmet SAYGILI, Ege University, Faculty of Agriculture, Department of Plant Protection,
Plant protection Phytopathology
Emre BİLEN, Ege University, Faculty of Agriculture, Department of Horticulture
Horticulture
Özlem BOZTEPE, Ege University, Faculty of Agriculture, Department of Horticulture, Bornova, Izmir
Horticulture
Nihal ACARSOY, Ege University, Faculty of Agriculture, Department of Horticulture
Horticulture
Published
2011-05-30
How to Cite
EVRENOSOĞLU, Y., MISIRLI, A., SAYGILI, H., BİLEN, E., BOZTEPE, Özlem, & ACARSOY, N. (2011). Evaluation of Susceptibility of Different Pear Hybrid Populations to Fire Blight (Erwinia amylovora). Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 39(1), 226-236. https://doi.org/10.15835/nbha3915619
Section
Research Articles

Most read articles by the same author(s)