Abstract
In the present study, selected almond genotypes in Keciborlu/Isparta region by Yıldırım (2007) based on late blooming and superior nut chacteristics were used to evaluate seedling growth performances and the reaction to root knot nematodes. Seeds were planted on perlite medium and stored 60 days at +4 °C in order to break seed dormancy. After germinating, seedlings were transferred to plastic pots to evaluate seedling growth characteristics and remaining seedlings were inoculated with Meloidogyne javanica and Meloidogyne incognita in order to asses resistance status of the selected seedlings. The highest germination percentage was obtained from Genotype 54 (96.1 %), the highest plant was observed from Genotype 9 (62.18 cm), the longest primary root was found from Genotype 54 (30.28 cm), the average secondary root lenght was highest in Genotype 9 (31.04 cm) and the widest root collar was observed in Genotype 33 (8.38 mm). Seedling stem diameter changed between 4.76 mm (Genoype 40) to 7.67 mm (Genotype 33). The lowest variation for stem widht was observed in Genotype 55 (0.58 %) while the lowest variation for seedling hight was found in Genotype 33 (0.50 %). Evaluated almond genotypes showed different reactions to studied nematode species, M. javanica and M. incognita. Resistant reactions of almond genotypes to nematode species were classified as susceptible, tolerant and resistant based on gal index values. Genotype 9 and 31 classified as tolerant to M. javanica while Genotype 54 classified as resistant to M. incognita.
Zusammenfassung
In der vorliegenden Studie wurden an den Genotypen der Mandel, die von Yıldırım (2007) aufgrund der späten Blüte und der hervorragenden Fruchtqualitäten in der Region Keciborlu/Isparta selektiert wurden, die Wachstumsentwicklung und die Reaktion auf Wurzelgallennematoden untersucht. Die Samen wurden auf ein Perlite-Medium ausgebracht und 60 Tage bei 4 °C gelagert, um die Keimruhe zu brechen. Nach der Keimung wurden die Sämlinge in Plastiktöpfen ausgepflanzt, um die Wuchseigenschaften der Sämlinge zu untersuchen. Die restlichen Sämlinge wurden mit Meloidogyne javanica und Meloidogyne incognita beimpft, um den Resistenzstatus der ausgewählten Sämlinge zu bewerten. Die höchste Keimrate (96,1 %) wurde bei Genotyp 54, die größte Pflanze (62,18 cm) bei Genotyp 9 und die längste Keimwurzel (30,28 cm) bei Genotyp 54 gefunden. Die mittlere Länge der Seitenwurzeln war bei Genotyp 9 am größten (31,04 cm) und der größte Wurzelhalsdurchmesser (8,38 mm) wurde bei Genotyp 33 erzielt. Der Triebdurchmesser des Sämlings schwankte zwischen 4,76 mm (Genotyp 40) und 7,67 mm (Genotyp 33). Die geringste Schwankung beim Triebdurchmesser zeigte Genotyp 55 (0,58 %), während die geringste Schwankung der Sämlingshöhe bei Genotyp 33 (0,50 %) beobachtet wurde. Die geprüften Mandel-Genotypen zeigten unterschiedliche Reaktionen auf die untersuchten Spezies der Nematoden-Arten M. javanica and M. incognita. Die Resistenzreaktion der Mandel-Genotypen wurde gemäß des Indexwertes für Wurzelgallen in empfindlich, tolerant und resistent eingeteilt. Die Genotypen 9 und 31 zeigten sich tolerant gegenüber M. javanica, während Genotyp 54 als resistent gegenüber M. incognita klassifiziert wurde.
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Kızıltan, M.F., Yıldırım, A.N. & Söğüt, M.A. The Determination of Nematode Tolerance and Seedling Performance of The Selected Almond (Prunus amygdalus L.) Genotypes in Isparta Province. Erwerbs-Obstbau 58, 233–239 (2016). https://doi.org/10.1007/s10341-016-0282-x
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DOI: https://doi.org/10.1007/s10341-016-0282-x
Keywords
- Almond
- Prunus amygdalus L
- Genotypes
- Seedling growth
- Root knot nematodes
- Meloidogyne javanica
- Meloidogyne incognita
- Resistant reaction