Rapid multiplication of potato minitubers using hydroponic
Krystyna Rykaczewska
k.rykaczewska@ihar.edu.plZakład Agronomii Ziemniaka, Instytut Hodowli i Aklimatyzacji Roślin, Oddział w Jadwisinie (Poland)
Abstract
The aim of the study, carried out in the years 2008–2009, was to assess the possibility of rapid multiplication of potato minitubers grown from in vitro materials using the hydroponic method and compare it with the traditional method. Plants in vitro of genotypes tested (Cyprian, Cekin, Irga, Zebra, Katahdin, SZC2707) were placed in hydroponic of own production. The applied medium contained all the macro-and micronutrients: N (as NO3ˉ and NH+), P, K, S, Ca, Na, Mg, Fe (chelate), Mn, Zn, B, Cu, Mo in the appropriate proportions for potato. Exchange of medium was done at intervals of 1-week. Four harvests of minitubers were performed: I — June 23, II — July 14, III — August 6, and IV — 26 August. In the experiment carried out using traditional method, plants in vitro of the tested genotypes were planted in boxes with soil substrate. The harvest took place once, in the last decade of August. The minitubers obtained by both methods were stored for a period of winter at a temperature of about 3°C. The sprouting capacity of minitubers was determined in the spring. Significant differences in yield and multiplication coefficient between traditional and hydroponic methods were found. The multiplication coefficient reached a higher value in the hydroponic method, on average 191% in relation to the traditional method, but the yield was lower by 35%. It was found that the sprouting capacity of minitubers obtained by both methods was complete.
Keywords:
hydroponic, minitubers, multiplication coefficient, potato, sprouting capacityReferences
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Authors
Krystyna Rykaczewskak.rykaczewska@ihar.edu.pl
Zakład Agronomii Ziemniaka, Instytut Hodowli i Aklimatyzacji Roślin, Oddział w Jadwisinie Poland
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Copyright (c) 2009 Krystyna Rykaczewska
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