Abstract
One of the important tasks of nursery farming in Kazakhstan is the need to produce not only standard, but also virus-free certified planting material. The first step in this direction with the aim of re-equipping horticulture in the republic is the planting of basic mother plantations with virus-free planting material. The solution of these issues became possible with the development and implementation of biotechnological systems in nursery farming. The article presents the composition of viral diseases of stone fruit clonal rootstocks in Kazakhstan and the results of improving the protocol of their clonal micropropagation at various stages. A collection of clonal rootstocks for plum, apricot and peach, consisting of 9 genotypes, was tested for the presence of 7 viruses. According to the result of PCR analysis, clonal rootstocks are free of viral diseases, and the Plum pox potyvirus (PPV) virus was detected in form No. 3 of the wild apricot P. armeniaca.
Virus-free plants were introduced into aseptic culture in vitro. The experiments showed that the shoots of stone fruits rootstocks are effectively sterilized from saprophytic microflora with 0.2% HgCl2 for 3 and 4 minutes. In this case, the number of those capable of regeneration is 70% and 80%.
01 Introduction
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02 References
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