Influence of Rootstocks on Plum Productivity in Different Growing Regions

Abstract

Proper selection of rootstock that is adapted to local growing conditions and climate is one of the most important preconditions for obtaining high yield in intensive plum orchards. The aim of the investigation was to evaluate the influence of different rootstocks on the productivity of two plum cultivars: ‘Kubanskaya Kometa’ (Prunus rossica. Erem.) and ‘Victoria’ (P. domestica L.) in different climatic conditions. The following sixteen rootstocks known in Europe were used in the trial: eight vegetatively propagated (‘St. Julien A’, ‘Brompton’, ‘Ackermann’, ‘Pixy’, ‘GF 8/1’, ‘G 5/22’, ‘GF 655/2’, ‘Hamyra’) and eight generatively propagated (‘St. Julien INRA2’, ‘St. Julien d’Orleans’, ‘St. Julien Noir’, ‘Brompton’, ‘Wangenheims Zwetsche’, ‘St. Julien Wädenswil’, ‘Myrobalan’, P. cerasifera var. divaricata). The evaluation was made in experimental orchards in Latvia, Estonia and Belarus. Orchards were established in spring 2001. Trees were planted at spacing 3 × 5 m in four replications, three trees per plot. The data obtained in years 2008-2015 are presented. The yield was influenced by rootstock and differed between years, growing regions and cultivars. The meteorological conditions during wintering period had significant influence on yield for trees on all evaluated rootstocks.

The study of multivariance in realization of the plum graft and rootstock combinations adaptivity systems to the changing conditions of environment in the Krasnodar region with the use of digital technologies

“…To date, it is proved that a rootstock has impact on the vigor of plant growth, its resistance to the stress factors of biotic and abiotic nature [1][2][3]. But it is known very little about the manifestation of properties of the graft and rootstock combinations on the new rootstocks in the various conditions of environment and at the different stages of ontogenesis, although this knowledge is necessary to expand the opportunities of regulating the vital functions of the fruit cultures and their varieties [4][5][6][7][8].…”

Plum (Prunus rossica Erem.) fruit field and laboratory researces depending on the scion-stock combinations

“…Among the molecules that show antioxidant activity in plums it was discovered that the phenolic compounds contribution is essentially higher than vitamin C and carotenoids contribution (Gil et al, 2002). For the plum reproduction and the intensive gardens creation the clonal stocks are used (Dekena et al, 2017). As our experiments with sweet cherry show the stock influences the grafted plants development and metabolism determining the harvest quality (Upadysheva et al, 2018).…”