De Nova Agro offers its clients Universal Rootstocks.
All plants (rootstocks) are obtained by in vitro micro-propagation. They are indentical (clonal) plants free of viruses and diseases.
In vitro propagation of кootstocks has a range of advantages such as:
- Fast production of identical material (all of the plants maintain the same characteristics);
- Plants produced from tissue cultures tend to develop much better and faster;
- Plants are free from pathogens.
Currently, we have the following clonal universal rootstocks: Garnem, Myrobalan, GF 677 and Controller.
HBOK 27 Rootstock
The ‘HBOK 27’ peach rootstock is an intraspecific hybrid between two peach parents, that has size control ability, moderate root knot nematode resistance, less wood from dormant and summer pruning, and produces fewer root suckers.
When used as a clonally produced rootstock with fresh market peach (‘O’Henry’) scions, ‘HBOK 27’ showed size reduction of compound trees and no evidence of graft incompatibility or other abnormalities. Five-year-old compound trees with ‘HBOK 27’ rootstock had 45 % smaller trunk cross-sectional area (TCA) than with the standard rootstock ‘Nemaguard’. Although crop yield per tree usually was less than on ‘Nemaguard’ rootstock, the compound trees with ‘HBOK 27’ rootstock that were smaller generally showed greater cropping efficiency.
The ability to plant smaller trees at greater density in commercial fields provides an opportunity to recover economically viable yields per unit area. The ‘HBOK 27’ rootstock can be used for dessert peach, canning peach, almond, apricot, and Japanese plum (Prunus salicina Lindl.). Compound plants with ‘HBOK 27’ rootstocks provide an opportunity for growers to develop new management practices that utilize the potential of these rootstocks to lower costs through size reduction, reduced pruning and less need for sucker control.
It is recommended to make large volume orders a year ahead. The prices on Universal Rootstocks are negotiable. Please call us for further details. De Nova Agro Team is always delighted to answer your questions.
Prunus dulcis x Prunus persica clonal hybrid
Middle strength root rootstock
Good connectivity to soil
Show a goods plant growth process
Attuned to heavy texture soils
Resistant to groundwater
Graft compatibility with peach and nectarine types is good
Makes positive effect on the fruit quality of the type which is grafted onto
Resistant to bacterial crown gall nematode.
Planting distance can be adjusted as 5 x 3,5 m
Myrobalan’s hardiness and ability to adapt to a wide range of soils make it an excellent rootstock. It is shallow rooted, yet well anchored and vigorous. Trees on Myro will eventually be free-standing, but may benefit from staking for the first few years, especially in lighter soils or windy conditions. It will produce a tree with a mature height of 16-20 feet. As a seedling, is not an especially precocious rootstock, and trees will take four-five years to become productive.
Apricots and almonds can be grown on Myrobalan plum rootstocks. Bob Purvis of Purvis Nursery notes, however, that delayed incompatibility has been reported with some apricot varieties, with three-four year-old trees snapping at the graft union under strong winds. Suckering at the base of the tree can also be evidence of partial incompatibility, which has been reported for Ilona apricots on Myro rootstock.
Myro has good resistance to crown gall and root knot nematode, fair resistance to phytophthora, and it is susceptible to oak root fungus.