Published June 15, 2014 | Version v1
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INDUCTION OF FEATHERS ON ONE-YEAR-OLD APPLE TREES CULTIVAR GOLDEN DELICIOUS USING BENZYLADENINE AND GIBBERELINS 4+7

Creators

  • 1. University of Novi Sad, Faculty of Agriculture, Trg Dositeja Obradovića 8, Novi Sad, Serbia

Description

In the production of one-year apple trees some cultivars exhibit poor feathering. The Golden Delicious cultivar has a relatively good
tendency to grow feathers but under standard technologies in the production of unbranched trees it forms very few feathers at 62-64 cm above ground. Phytohormones BA and BA+GA4+7 significantly affected the formation of feathers on apple trees. In this research the solutions of BA and BA+GA4+7 in the concentrations from 200 to 450 μl/l of active ingredient BA were applied three times at 7-day intervals during vegetation. At the end of vegetation, the following parameters were measured: the total number of feathers, the total feather length, the mean feather length and tree height. Increasing concentrations of BA and BA+ GA4+7 to a certain limit leads to an increase in the number and total length of feathers. The Golden Delicious cultivar tends to form feathers of different lengths in a nursery. A significant variation was found in the mean feather length with different treatments. The application of BA phytohormone in higher concentrations can negatively affect the tree height.

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2. DORIĆ et al. 2014 Vol. 63, No. 1-2 pp. 13-21.pdf

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