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Association Between Resistance to Fire Blight Disease and Leaf Characteristics in Quince Progenies

Şahin, Müge

Erwerbsobstbau, 2023-08, Vol.65 (4), p.751-759

Berlin/Heidelberg: Springer Berlin Heidelberg

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  • Título:
    Association Between Resistance to Fire Blight Disease and Leaf Characteristics in Quince Progenies
  • Autor: Şahin, Müge
  • Assuntos: Agriculture ; Biomedical and Life Sciences ; Blight ; Coefficient of variation ; Criteria ; Disease ; Disease control ; Disease resistance ; Genotypes ; High resistance ; Hybrids ; Inoculation ; Leaf characters ; Leaves ; Life Sciences ; Morphology ; Original Article ; Originalbeitrag ; Physical characteristics ; Plant Sciences ; Pollination ; Polygenic inheritance
  • É parte de: Erwerbsobstbau, 2023-08, Vol.65 (4), p.751-759
  • Descrição: Determining the resistance of genotypes against polygenic controlled diseases for which molecular markers cannot be used requires intensive labor and funds. For this purpose, the development of early selection criterion using morphological markers related to resistance to such diseases plays a key role. In this study, therefore, the aim was to determine usage possibilities of morphological markers against polygenic fire blight disease. Interaction of leaf morphological characteristics and fire blight resistance components for quince hybrids were observed on 394 progenies derived from open pollination of 19 quince genotypes. Seven leaf morphological traits based on the International Union for the Protection of New Varieties of Plants (UPOV) descriptors were determined before fire blight inoculation, and evaluation of fire blight resistance was carried out greenhouse conditions over a 2-year artificial inoculation. As expected, considerable diversity was obtained for the frequency of some studied leaf characters and coefficient of variation. When correlations between the fire blight resistance and leaf morphological traits were examined, fire blight resistance was positively and significantly correlated with leaf blade: undulation of margin (r = 0.494, p  < 0.001) and leaf blade: length of tip (r = 0.113, p  < 0.0247). Considering these traits, especially leaf blade: undulation of margin, it seems likely that they could be used as both an early selection criterion and morphological markers for fire blight resistance on Cydonia oblonga . In this way, hybrids with high resistance could be selected via high leaf blade undulation characteristics before disease tests and may allow studies to continue with a small number of hybrids.
  • Editor: Berlin/Heidelberg: Springer Berlin Heidelberg
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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