Intensification techniques in the cultivation of seed rootstocks of VNIISPK breeding for the production of pear seedlings

Russian Research Institute of Fruit Crop Breeding (VNIISPK), Zhilina, 302530 Orel region, Orel district, Russian Federation

^* Corresponding author: semin@vniispk.ru

Abstract

The article presents the results of research on optimizing the methods of intensification of growing seed rootstocks based on common quince of VNIISPK breeding in a nursery. In the course of the research, it has been found that the highest yield of seed rootstocks with optimal economic and biological characteristics is provided by sowing germinated seeds in late April. Seeds should be sown in artificial beds according to the scheme of 0.5 cm x 20 cm, which will allow to obtain a high yield of seedlings of good quality and increase the efficiency of growing seed rootstocks. With a dense sowing scheme, annual growth does not form branches. A close linear relationship has also been found between the length of annual growth and the length of skeletal roots of seedlings, from which it follows that the longer the growth of a seedling is, the longer its roots are. There is a decrease in the yield and quality indicators of rootstocks when sowing in the field in the seedling nursery, and the additional rearing of seedlings is necessary in the nursery. The studies in this direction will be continued.