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Development of peach rootstocks minicuting obtained in two times in system growing without soil

The commercial propagation by cuttings of peach seedlings in Brazil has been limited by factors such as lack of appropriate techniques in handling the propagation environment, besides the difficulty in the management of nutrition and survival of post-rooting cuttings. The objective of this study was to evaluate the growth and survival of seedlings from peach rootstocks cloned by minicutting in soilless system, obtained in two seasons. The study was conducted in a greenhouse condition located in the Didactic and Experimental Field, Department of Plant Science, Faculty of Agronomy Eliseu Maciel of Federal University of Pelotas (UFPel / RS), from March to December 2010 and from November 2010 to May in 2011. The plant material used for the clonal rooting of peach tree was obtained from herbaceous rootstocks of peach cultivars Flordaguard and Okinawa. Minicuttings of the rootstock 'Flordaguard' obtained in autumn had higher survival percentage when transplanted into soilless system. Minicuttings of rootstock cultivar Okinawa in the autumn and spring have obtained more quickly diameter suitable for grafting. The foliar concentrations of macronutrients and micronutrients followed a descending order of peach, with N>K>Ca>Mg>P>S and Fe>Mn>B>Zn>Cu.

Prunus persica; propagation; nutrient solution; macronutrients and micronutrients


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