Determination of the effects of <i>Apple stem grooving virus</i> on some commercial apple cultivars

Autor/innen

  • N. Birişik
  • S. Baloğlu

Abstract

Studies to determine the effects of Apple stem grooving Capillovirus (ASGV) on external and physical characteristic of some commercial apple (Malus dometsica Borkh.) cultivars were carried out in the Adana Plant Protection Research Institute’s screen house facility in Turkey during 2006-2008. The selected cultivars for this aim were 'Jersey Mac', 'Fuji', 'Golden Delicious', 'Summer Red', 'Granny Smith', 'Vista Bella', 'Galaxy Gala' and 'Starking'. The selection of the cultivars was based on their common use by growers in the country. All cultivars were grafted on M9 rootstock and potted in the screen house. Turkish io-50 ASGV isolate, which had been obtained from previous works from an 'Anna' apple tree, was used for inoculation by chip budding, and the success of inoculation was confirmed by DAS-ELISA. The trial was evaluated two years after inoculation, based on six external and two physical parameters of the inoculated trees. The results demonstrated that ASGV has no statistically important effects on tree length, number of the branches, average and total length of the branches, and leaf dry matter. However, ASGV decreased the trunk diameter by about 18%, and the woody dry matter in a statistically significant rate, whereas the angle of the branches from the trunk increased on average about 41% by ASGV infection. The cultivars reacted differently to virus inoculation and stem grooving symptoms were observed on some tested cultivars.

Keywords: ASGV, apple, cultivar, effectivness

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Veröffentlicht

2010-09-29

Ausgabe

Nr. 427 (2010): Proceedings of the 21st International Conference on Virus and other Graft Transmissible Diseases of Fruit Crops

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Artikel

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