Pistillate Flower Abscission in Turkish Walnut Cultivars and Its Reduction by AVG

Gün, Ayse and Erdoğan, Veli and Akçay, M. Emin and Fidanci, Ayse and Tosun, İsmail (2010) Pistillate Flower Abscission in Turkish Walnut Cultivars and Its Reduction by AVG. In: 2nd International Symposium on Sustainable Development, June 8-9 2010, Sarajevo.

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Abstract

Level of pistillate flower abscission (PFA) in Turkish walnut cultivars was investigated in this study. Emasculated and bagged female flowers were pollinated with 5%, 50% and 100% pollen concentrations at receptivity. Control flowers left for open pollination. In addition, a whole tree was sprayed with 125 ppm ethylene inhibitor AVG (amino ethoxy vinyl glycine) when anthesis reached to 5-30% and a control tree was not treated for each cultivar. Number of aborted flowers at diameter of 3-4cm was counted and percent PFA was calculated. The results showed that Turkish walnut cultivars had medium (65.4%) to high (100%) levels of PFA including the leading cultivars ‘Sebin’ and ‘Bilecik’ (94.8% and 93.4% PFA, respectively). Application of AVG reduced PFA from 82.4% to 43.6% in average and increased fruit set significantly in all cultivars except ‘Sen-1’.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Walnut, PFA, fruit set, amino ethoxy vinyl glycine, AVG
Subjects: Q Science > Q Science (General)
Depositing User: Mr. Ibrahim Kinal
Date Deposited: 03 Feb 2012 09:37
Last Modified: 24 Feb 2012 15:15
URI: http://eprints.ibu.edu.ba/id/eprint/326

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