APRICOT SEEDLING (P.armeniaca L.)
It is suitable for warm, dry locations, with deep and permeable soils. Primarily important as a base for the cultivation of large trees (tall stems) in the future. The roots grow steeply down and ensure a strong growth, later yield and good resistance to drought for the tree. The species' own seedlings show good affinity to the top-quality varieties, but are susceptible to Verticillium wilt and root mould.
ST.JULIEN INRA GF 655-2
Their very soil-dependent, more or less strong sucker formation and their insufficient affinity with some varieties cause us to search for new alternatives despite good fruit qualities.
could become one of the most important apricot rootstocks for modern spindle and hedge cultivation. This hybrid from ´Reine Claude d´Althan´x ´Reine Claude de Bavay´ grows weaker than 655-2. Torinel is very well tolerated by all apricot varieties, but is incompatible with many peach and nectarine varieties. Apricot trees grafted on Torinel yield very early and are resistant to suffocation of roots. Torinel® makes few but thorny root suckers.
Torinel® and WaxWa need higher ground temperatures in winter to start thriving again than Ishtara®, Jaspi® fereley or Pumiselekt, which can be an advantage for apricots after warm weather periods in January and subsequent cold regression.
Montclar bzw. Rubira®
In combination with apricot varieties, these peach-immanent rootstocks grow 20-30% weaker than the apricot seedling. Montclar roots significantly deeper than 655-2 or Torinel, which makes this rootstock a very interesting rootstock, especially in dry areas and for hedging. Although Montclar grows 10-20% stronger than 655-2, even as a spindle in ten-year-old trees in our experimental plant it makes a very good, calm impression, which is probably due to its very early and rich flower buds induction. Good fruit quality, early yield start, tolerance to dry conditions and the absence of root sprouts make peach types an important rootstock in modern commercial cultivation.
Apricot varieties on Montclar and Rubira are best planted only in spring, the trees should be put in water before planting and the pruning should be carried out vigorously like with peach trees.
A plum rootstock from early plum seedlings from Wangenheim, specially selected for modern apricot cultivation. Since Wangenheim's seedlings grow quite differently, we have been trying for a long time to get this very robust rootstock more homogeneous. The first step was to produce nuclei only from a completely isolated virus- and phytoplasma-free semen donor unit, where Wangenheims can only fertilize itself (WaxWa). This has led to much more uniform documentation. Nevertheless, this generative multiplication leads to splitting, where certain types (SPURTYPEN) appear again and again, which then grow extremely weakly and produce smaller fruits. Individual types repeatedly lead to affinity problems, especially with apricots.
That is why clones were selected in several places in Europe and propagated vegetatively. The most successful and widely used one is WAVIT® Prudom.
Through in-vitro-propagation, WAVIT produces an absolutely uniform weak growth which is approx. 10 % below that of Torinel and GF 655-2. On good, vigorous soils, Wavit is the best base for modern apricot cultivation, peach rootstocks or myrobalan clones are preferred in dry locations. WAVIT is robust against chlorosis and root embroidery and, like Wangenheims in general, makes very healthy, long-lived trees. A good affinity with all apricot varieties in our range, early and high yields, the absence of root rashes and their climatic robustness ensure rapid expansion.
is a vegetatively propagated myrobalan type from America that grows about 20% weaker than myrobalan seedlings and has a very wide adaptation range - 29/C is suitable for both very dry and very humid locations and has a low sensitivity to agrobacterium (root crop), verticillium and nematodes. 29/C grows very homogeneously and forms only a few root suckers.