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Biostimulators and foliar fertilization influence on the growth and chemical composition of softwood cuttings

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Author(s): Mihail Iancu | Mihai Nita | Claudia Nicola

Journal: Scientific Papers of the Research Institute for Fruit Growing Pitesti, Romania
ISSN 1584-2231

Volume: XXV;
Start page: 174;
Date: 2009;
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Keywords: Aronia | hip rose | thorn blackberry | honeysuckle | Folimax | Plantfert

ABSTRACT
The accomplishment of adequate amounts of small fruits planting stock according to theInternational regulations demands new working methods and techniques which has to be more efficiently. As a consequence, at the Research Institute for Fruit Growing Pitesti some studies were done between 2008-2009. The following experimental scheme was organized. A Factor – The species involved, with the graduations: a1= chokeberry; a2 = hip rose (Rosa canina); a3 = thornless blackberry; a4 = honeysuckle; B Factors – biostimulators for rooting with the graduations: b1 = without biostimulators (control); b2 = Radistim (powder); b3 = indole acetic acid. C factors – foliar fertilization, with the graduations: c1 = unfertilized; c2 = fertilized with Folimax 2%; c3 = fertilized with Plantfert (14-5-4) 2%. For of rooting the softwood cuttings a substratum consisting in 60% pest, 20% manure and 20% sand was employed. This rooting substratum of 8-10 cm thick was placed in plastic boxes put on high beds in a solarium where artificial mist may be intermittently applied. On average, for the graduations of B, C experimental factors, significant differences between the 4 species with regard to the values of the 4 growth characteristics were noticed. In case of control treatment (without biostimulators) versus the 2 foliar fertilization treatments, the mean shoot length was significantly higher by 14-17% for all 4 species and 3 foliar fertilization levels. On average for all 4 species and 3 rooting biostimulator treatments, the mean length of shoots was significantly higher by 10% in the unfertilized treatment versus the 2 foliar fertilized treatments. The foliar fertilization versus the unfertilized treatment induced a rice of N and P contents in rise leaves by 8-13% and 4-5% respectively, of dry weight by 8% and a decrease of K content.
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