PERSPECTIVE BREED ROODSTOCK COMBINATIONS OF PEACH FOR INTENSIVE ORCHARDS IN CENTRAL RUSSIA

Abstract

The results of compatibility in intergenerational variety-rootstock combinations with dwarf rootstocks based on quince of ordinary VNIISPK selection and pear varieties promising for industrial production are presented. A good fusion with dwarf rootstock and intensive development of pear varieties Yeseninskaya, Muratovskaya, Tyutchevskaya, Yakovlev's Memory, Belorusskaya Pozdnaya, Nika, Bryanskaya Krasavitsa and promising potential varieties of VNIISPK selection Alaya were established, without signs of suppression of grafts. It is shown that the quality of pear seedlings in nursery conditions is improved when oculating on seedlings of common quince, compared with pear rootstock. Negative affinity when vaccinated on quince is established for the varieties of pear Orlovskaya summer, Orlovskaya beauty, Quiet Don and Skorospelka from Michurinsk. These varieties cannot fully develop on common quince with direct inoculation. For them, an insertion rootstock (intermediary) was noted - apple-pear hybrid No. 818, which showed excellent fusion with common quince and more intensive development of grafts than on pear rootstock. No signs of incompatibility were found between the insertion stock and pear varieties. Preliminary results of observations on the development of cultivar-rootstock combinations of pears compatible with quince in the garden are presented. The entry into the fruiting season of pear varieties when grafted on quince has been established for 3-4 years. Based on the obtained research results, the selected cultivar-rootstock combinations can be used for the production of pear varieties using intensive technologies in Central Russia.