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Improved feathering by combined application of benzyladenin (ba) and biostimulators

By L. Magyar, Z. Barancsi and K. Hrotkó

Abstract

Fruit growers prefer well feathered trees for planting intensive orchards. Besides nurseryman’s practices (pinching shoot tips or young leaves) plant bioregulators proved to be efficient in secondary shoot formation. Among them, benzyladenin (BA) is the most frequently used compound for lifting the dormancy of summer buds. Based on our trials secondary shoot formation and shoot growth can be achieved by BA and GA application on apple, cherry and plum nursery trees. However, the treatments are efficient, the result, e.g. growth of secondary shoot is variable year by year, which seemed to be in interaction with weather conditions and root potential of trees. In agriculture some biostimulators are used to improve root growth and due to this, the crop. Our intention was to test these biostimulators in combined application with BA. In order to improve the feathering of apple nursery trees in 2007 a trial was carried out on one-year-old ‘Idared’ on M.9 and MM.106 trees. Besides the usual BA application, three times Kelpak and Wuxal Ascofol were carried out on the growing scion shoot from May in two weeks intervals. In autumn before lifting the tree height, caliper, length of secondary shoots was measured and number of feathers was counted. Biostimulator Kelpak and the leaf fertilizer combined with biostimulator Wuxal Ascofol applied alone did not affect the shoot growth, albeit Kelpak improved the root quality and branching. Both biostimulators applied in combination with BA increased the number of feathers and the length of feathers (secondary shoots). Based on our results, the highest number and length of secondary shoots could be achieved by combined application of BA and Kelpak. To improve the results, further trials are needed to find optimal concentration and term of treatments

Topics: M.9, MM.106 rootstocks, LCC:Plant culture, LCC:SB1-1110, LCC:Agriculture, LCC:S, DOAJ:Plant Sciences, DOAJ:Agriculture and Food Sciences
Publisher: Research Institute for Fruit Growing Pitesti
Year: 2008
OAI identifier: oai:doaj.org/article:888954dda61546ce978e5784ee9b3aaf
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