Plum and Apricot Clone Trees
MYROBOLAN ROOTSTOCK

  • Since Myrobolan B, Myrobolan GF 31 rootstocks form large sized crown, more growing Myrobolan 29-C has gained importance in last years.
  • They are in the same group with green group (P. cerasifera) plums and is the most commonly used rootstock for plums including the heavy textured soils.
  • Myrobolan 29-C rootstock is a semi-dwarf rootstock and forms trees at a size of 70-80% of the Mrobolon generative rootstock.
  • Resistant to root tumor nematode but sensitive to cancer and oak root fungi.
  • It has a moderate long root system.
  • 3-3.5m gaps on the line and 4.5-5m gaps between the lines are good for those on Myroboloan 29 C clone.
MARIANA ROOTSTOCKS

  • It was regenerated by crossbreeding the P. Cerasifera x P. Munsoniana plum species in California.
  • Mariana GF 8-1, Mariana 2624 are most important ones. Mariana GF 8-1 rootstock develops shallow root system.
  • It is resistant to colds. It can be planted in different soils including heavy textured ones.
  • It has tolerance for Ptoptohora, oak root cancer diseases, is resistant to root tumor nematode, and sensitive to bacterial cancer and Crown Gall diseases.
  • Compatibility with all plum species is good but have incompatibility with some peach, nectarine and almond types.
ISHTARA, (Ferciana)

  • It is a semi-dwarf rootstock, a hybrid of plum and peach.
  • It can also be used for peach, nectarine, apricot, and almonds besides the plum species.
  • It allows the specie on it to ripen early and has a positive effect on fruit size.
  • Resistant to oak root nematode, sensitive to bacterial cancer.
SAINT JULIEN ROOTSTOCK

  • It was generated from P. insitia plum type.
  • The most important ones among these rootstocks are Saint Julien A and Saint Julien 655/2 rootstocks and they are semi-dwarf.
  • They don't enjoy heavy textured soils.
  • They can be used as rootstock for peach, nectarine and apricots besides the plums.
  • It positively affects the productivity of the specie on it.
  • Non-resistant to extreme colds and recommended for well-drained soils.
  • Widely used in UK and Spain.
JULIOR ROOTSTOCKS

  • Generated upon crossbreeding the Saint Julien and P. domestica plum species.
  • It is a semi-dwarf rootstock used in plum, peach and apricots.


Characteristics of Some Plum Clone Rootstocks

ROOTSTOCK
TREE GROWING ABILITY
RESISTANCE TO LIME
RESISTANCE TO UNDERGROUND WATER
RESISTANCE TO ARIDITY
PLANT SPACING GAPS
MRS 2/5

4 m x 2,5 m
Tetra
4 m x 3 m
Myrobolan  29 C

5 m x 3 m
Marianna GF 8/1

5 m x 4 m
Pixy

4  m x 2,5 m


Characteristics of Some Apricot Clone Rootstocks

ROOTSTOCK
TREE GROWING ABILITY
RESISTANCE TO LIME/strong>
RESISTANCE TO UNDERGROUND WATER/strong>
RESISTANCE TO ARIDITY
PLANT SPACING GAPS
Torinel
5 m x 3 m
Myrobolan GF 31
5 m x 4 m
Myrobolan  29 C
5 m x 3,5 m
Marianna GF 8/1
5 m x 4 m


Characteristics of Some Apricot Clone Rootstocks




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