Phenological and Fruit Characteristics of the F1 Hybrid Pear Population Tested Against the Disease in Breeding for Fire Blight Resistance


MERTOĞLU K. , EVRENOSOĞLU Y.

JOURNAL OF TEKIRDAG AGRICULTURE FACULTY-TEKIRDAG ZIRAAT FAKULTESI DERGISI, vol.14, no.3, pp.104-115, 2017 (Journal Indexed in ESCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 14 Issue: 3
  • Publication Date: 2017
  • Title of Journal : JOURNAL OF TEKIRDAG AGRICULTURE FACULTY-TEKIRDAG ZIRAAT FAKULTESI DERGISI
  • Page Numbers: pp.104-115

Abstract

The principles of sustainability in agriculture should be employed, while fighting against diseases and pests in plants, which cause losses in quantity and quality, and environment, human and animal health sensitive farming methods should be followed. In parallel with the development of new agriculture policies that reduce or prohibit the use of pesticides in agricultural production, breeding has become significant among pest and disease management methods. Thus, in this research susceptibility levels against fire blight pre-tested 42 genotypes and 4 cultivars were examined in terms of phenological, pomological and chemical characteristics for two-years. Susceptibility to fire blight, edible quality, attractiveness, fruit thickness, length/diameter, soluble solids content, fruit flesh stone cell amount, fruit flesh hardness and rustiness of genotypes and parental cultivars were evaluated to determine superior ones by weighed ranked method. Full blooming dates, harvest dates and day from full blooming to harvest of analysed genotypes were varied between 25th March - 25th April, 3rd August - 6th October and 109 -174 days, respectively. Average fruit length was varied from 29.85 mm to 104.61 mm, fruit diameter ranged from 27.76 mm to 76.48 mm, fruit weight was between 12.4 - 292.62 g, and fruit flesh hardness was varied between 5.0 - 10.8 kg/cm(2). Average soluble solids content varied from 12.3 % to 17.7 % and titratable acidity from 0.18 % to 0.96 %, respectively. According to results, 7 genotypes were considered as potentially superior for further observations.