Avokado klonal anaçları

Avocado Clonal Rootstock

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What is Avocado Clonal Rootstock?

Avocado ( Persea americana Mill.) is one of the most important economically cultivated species in the Lauraceae family.

It is spread over a wide geographical area from Guatemala to the northern and eastern parts of Mexico to the pacific coast of Central America. Therefore, it has 3 different strains: Mexican ( P. americana var. drymifolia), Guatemalan ( P. americana var. guatemalensis) and West Indian ( P. americana var. americana). Although these strains have the same chromosome number (n = 24), they can easily interbreed.

Today, commercially grown varieties are composed of these three lines and their hybrids. There is a necessity to use clonal rootstocks in modern cultivation. Duke 7, Thomas, D9, G-6, Lula, Barr Duke, Borchard, Toro Canyon are clonal rootstocks widely used in the world.

What are Avocado Clonal Rootstock Features?

  • Avocado ( Persea americana Mill.) is one of the most important economically cultivated species in the Lauraceae family.
  • It is spread over a wide geographical area from Guatemala to the northern and eastern parts of Mexico to the pacific coast of Central America.
  • Since avocados are very sensitive to salt, lime and Phytophthora, resistant rootstocks are generally used.
  • It is suitable for frequent planting and facilitates cultural operations.
  • Due to its fragile branch structures, it is very affected by strong winds in the young period. It can be damaged by dry wind, direct sunlight and dew.
  • Considering the soil structure, it likes slightly acidic and permeable soils with a pH of 5.5-6.5.
  • It draws attention with its sensitivity to salt, lime and Phytophthora.

What are the Soil and Climate Conditions of Avocado Clonal Rootstock?

Avocado clonal rootstock is tolerant or resistant to biotic/abiotic stress factors, and the majority of them show a stunted growth tendency. Due to its fragile branch structures, it is very affected by strong winds in the young period; It can be damaged by dry wind, direct sunlight and dew. The land where the avocado garden will be established should be in places that are relatively protected from strong winds and not too cold.

Considering the soil structure, it likes slightly acidic with a pH of 5.5-6.5 and permeable soils. It is also sensitive to salinity. Avocado clonal rootstocks, which can adapt to the drained soil type, are frequently preferred with their high durability.

How to Grow for Avocado Clonal Rootstock?

Since avocados are very sensitive to salt, lime and Phytophthora, resistant rootstocks are generally used. Clonal rootstocks show homogeneous characteristics, are tolerant or resistant to biotic/abiotic stress factors, and in addition, they are suitable for frequent planting, thus facilitating cultural processes. The land where the avocado garden will be established should be in places that are relatively protected from strong winds and not too cold.

Species on the avocado clone rootstock after grafting should be carefully controlled, especially in the first years. In soft ground and windy areas, staking can be done in the first few years.

What are Avocado Clonal Rootstock Grafting Methods?

In order to get high and quality yield from the grafting process of the avocado clone rootstock, which allows the variety grafted on it to give larger and more fruit, the grafting process must be carried out at the right time and with the right grafting methods.