Ukrainian Black Sea Region Agrarian Science

Abstract

The dynamics of productivity of the mother root & cutting garden of the Pumiselect clone rootstock was studied, taking into account the soil and climatic conditions of the steppe zone of Ukraine, as well as technological aspects of crop management. In the first three years of vegetation of mother plants, there was an intensive build-up of the aboveground part of the bushes, which gave rise to transfer them to the state of operational plantings. Taking into account the annual complete alienation of growth in the next 4-9 years, significant aging of plants occurred, which was manifested in a decrease in habitus indicators, the number of shoots and their length. As a result, the productivity of mother root plantings decreased (the number of cuttings from 570.2 thousand units)/ha up to 133.6 thousand units/ha), which limited the feasibility of long-term cultivation in order to obtain lignified cuttings

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