Evaluation of susceptibility of different pear hybrid populations to fire blight (Erwinia amylovora)
Makaleler > Tam Makale · 2011
Yazarlar: Yasemin Evrenosoğlu, Adalet MISIRLI, Hikmet Saygılı, Emre Bilen, Özlem Boztepe, Nihal ACARSOY BİLGİN
NOTULAE BOTANICAE HORTI AGROBOTANICI CLUJ-NAPOCA, SCI Expanded İndekslerine Giren Dergi, Uluslararası, 2011, cilt 39, ss 226-226
DOI: 10.15835/nbha3915619
Özet
<div style="padding: 0px; margin: 0px; position: absolute; cursor: text; transform-origin: 0% 0%; left: 113.386px; top: 476.029px; transform: scaleX(0.867529);">Fire blight disease caused by pathogenic bacterium </div><div style="padding: 0px; margin: 0px; position: absolute; cursor: text; transform-origin: 0% 0%; left: 436.11px; top: 475.745px; transform: scaleX(0.867899);">Erwinia amylovora</div><div style="padding: 0px; margin: 0px; position: absolute; cursor: text; transform-origin: 0% 0%; left: 550.938px; top: 476.029px; transform: scaleX(0.837212);">, is the serious disease of pear, and there is not a certain </div><div style="padding: 0px; margin: 0px; position: absolute; cursor: text; transform-origin: 0% 0%; left: 89.7637px; top: 496.029px; transform: scaleX(0.901929);">chemical management against this disease except antibiotic-type compounds such as streptomycin. It is very important to improve new </div><div style="padding: 0px; margin: 0px; position: absolute; cursor: text; transform-origin: 0% 0%; left: 89.7637px; top: 516.029px; transform: scaleX(0.87877);">fire blight resistant cultivars in case of integrated disease management. With this purpose, different crosses have been made between </div><div style="padding: 0px; margin: 0px; position: absolute; cursor: text; transform-origin: 0% 0%; left: 869.063px; top: 515.745px; transform: scaleX(0.865349);">Pyrus </div><div style="padding: 0px; margin: 0px; position: absolute; cursor: text; transform-origin: 0% 0%; left: 89.7637px; top: 535.745px; transform: scaleX(0.835568);">communis</div><div style="padding: 0px; margin: 0px; position: absolute; cursor: text; transform-origin: 0% 0%; left: 152.053px; top: 536.029px; transform: scaleX(0.912357);">varieties that have good fruit characteristics and resistant cultigens. Besides, self and open pollination treatments have been </div><div style="padding: 0px; margin: 0px; position: absolute; cursor: text; transform-origin: 0% 0%; left: 89.7637px; top: 556.029px; transform: scaleX(0.896469);">carried out in maternal plants. The disease resistance level of the hybrids obtained from these combinations was determined by artificial </div><div style="padding: 0px; margin: 0px; position: absolute; cursor: text; transform-origin: 0% 0%; left: 89.7637px; top: 576.029px; transform: scaleX(0.907978);">inoculations by </div><div style="padding: 0px; margin: 0px; position: absolute; cursor: text; transform-origin: 0% 0%; left: 186.963px; top: 575.745px; transform: scaleX(0.884402);">Erwinia amylovora</div><div style="padding: 0px; margin: 0px; position: absolute; cursor: text; transform-origin: 0% 0%; left: 300.295px; top: 576.029px; transform: scaleX(0.91155);"> in greenhouse conditions. A total of 3284 hybrids were inoculated, and 2631 of them survived and </div><div style="padding: 0px; margin: 0px; position: absolute; cursor: text; transform-origin: 0% 0%; left: 89.7637px; top: 596.029px; transform: scaleX(0.890267);">were distributed to different susceptibility classes. 19.88% of the inoculated hybrids was killed by </div><div style="padding: 0px; margin: 0px; position: absolute; cursor: text; transform-origin: 0% 0%; left: 674.487px; top: 595.745px; transform: scaleX(0.880891);">Erwinia amylovora</div><div style="padding: 0px; margin: 0px; position: absolute; cursor: text; transform-origin: 0% 0%; left: 787.367px; top: 596.029px; transform: scaleX(0.926814);">. Total distribution </div><div style="padding: 0px; margin: 0px; position: absolute; cursor: text; transform-origin: 0% 0%; left: 89.7637px; top: 616.029px; transform: scaleX(0.800236);">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 </div><div style="padding: 0px; margin: 0px; position: absolute; cursor: text; transform-origin: 0% 0%; left: 89.7637px; top: 636.029px; transform: scaleX(0.857216);">“C- mid-susceptible”, 20.28% in class “D- susceptible”, and 61.54% in class “E- very susceptible”. Majority of class “A- slightly susceptible” </div><div style="padding: 0px; margin: 0px; position: absolute; cursor: text; transform-origin: 0% 0%; left: 89.7637px; top: 656.029px; transform: scaleX(0.814692);">hybrids were obtained from ‘Magness’ x ‘Ankara’ combination. ‘Kieffer’ x ‘Santa Maria’, ‘Kieffer’ open pollination, ‘Magness’ x ‘Akça’, </div><div style="padding: 0px; margin: 0px; position: absolute; cursor: text; transform-origin: 0% 0%; left: 89.7637px; top: 676.029px; transform: scaleX(0.853226);">‘Magness’ x ‘Kieffer’, ‘Magness’ x ‘Santa Maria’, ‘Mustafa Bey’ x ‘Moonglow’ treatments displayed good results with respect to “A- slightly </div><div style="padding: 0px; margin: 0px; position: absolute; cursor: text; transform-origin: 0% 0%; left: 89.7637px; top: 696.029px; transform: scaleX(0.918741);">susceptible” character. It is very important to evaluate these hybrid pear populations through different fruit and tree characteristics in </div><div style="padding: 0px; margin: 0px; position: absolute; cursor: text; transform-origin: 0% 0%; left: 89.7637px; top: 716.029px; transform: scaleX(0.918026);">the future<span style="color: transparent; font-family: serif; font-size: 16.6667px; white-space: pre; background-color: rgb(0, 0, 0);">.</span></div>