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Citrus rootstock


THE rootstock of citrus fruits more reliable are theBitter orange, L'Trifoliate orange, the Citrange, the Citrus volkameriana and theAlemow. Let's see them briefly one by one, with their characteristics, but first let's review some technical thermals.

Rootstock: also called 'subject', the rootstock it is the portion of the plant on which the graft is grafted, also called 'scion', which can be a branch bearing more buds or a simple single bud.

THE rootstock stand out in frank, clonal is from seed. Let's see why:

  • Free rootstock: they are called i rootstock deriving from seed and belonging to the same species as the scion. It has the characteristic of creating few problems regarding compatibility and of giving rise to vigorous plants that delay fruiting.
  • Clonal rootstock: as the name reveals, this type of rootstock derives from a clone as a result of continuous selections and in practice it has inherited all the characteristics of the mother plant ending up cataloged with an acronym.
  • Seed rootstock: and the rootstock which derives from any seed and on which it is almost always possible to graft slips belonging to various species. Normally it is not considered reliable from the point of view of affinity and for use it is adjusted based on experience.

Affinity between rootstocks. By affinity we mean the botanical origin of the same species of subject and scion. The existence of an affinity is fundamental because otherwise the symbionts do not take root. There are exceptions, but they are rare. The problem with the grafter is that it is delicate and difficult to assess the affinity of certain varieties in advance.

Citrus rootstock

And now let's get to the point. We mentioned the four at the beginning rootstock of the most common and considered most reliable citrus fruits, now we see their characteristics.

  • Bitter orange. And the rootstock more common in Italian citrus groves because it is vigorous, resistant to cold and bears fruit with good quality. The weak point is the clayey and poorly oxygenated soils, where it is weaker and sensitive to attacks by parasites.
  • Trifoliate orange. It is the most suitable for sweet orange, it is rustic, resists the cold and nematode parasites well. It also has early, abundant and good quality fruiting. The weak point is the calcareous and brackish soils, which he can't stand.
  • Citrange. It is the cross between trifoliate orange and sweet orange. It is considered excellent especially for sweet orange and mandarin orange. The types troyer is carrizo they are particularly resistant to cold.
  • Citrus volkameriana. It comes from a selection made by the Experimental Institute for Agriculture of Acireale. It is suitable and recommended for lemon groves because it has good resistance to malsecco. The weak point is the heavy soils with stagnant water.
  • Alemow. It is recommended and particularly suitable for lemons because in addition to being productive, it is earlier in fruiting than bitter orange, which is the other rootstock classic from lemon.

Hook grafting knife

Mastic for grafts


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