Root growth of apple - tree stock varieties in high density orchards
The research was conducted in an high density orchard on the Orlyk, Martovskoe and Synap Orlovsky apple varieties on the rootstock 62-396, 57-545, P16, P60. The importance of rootstock and graft mutual impact is shown. It was determined that roots less than 1mm in diameter made up 88-89 % of the roots, and half of all the roots in soil cut 0.5m away from the stamp are located at a depth of 20cm, while 2/3 of the total number of roots are found at a depth of 30cm.