Index
1- Vineyard patterns: Fercal
2- Usual name
Fercal
3- Breeder
INRA (National Institute of Agronomic Research. France)
4- Year of obtaining
1959
5- Genetic origin
Crossing of Berlandieri Colombard nº 1 B and 31 Richter
6- Resistance to soil parasites
The degree of tolerance of Fercal to root phylloxera is very high.
It also has a very high degree of tolerance to the nematodes Meloidgyne arenaria and Meloidogyne incognita, but its resistance to Meloidogyne hapla is medium.
7- Adaptation to the agricultural environment
- The main characteristic of Fercal is its high resistance to chlorosis and its adaptation to calcareous soils.
- Resists up to 60% total limestone , 40% active lime and a CPI of 120.
- This rootstock tolerates damp conditions quite well in spring and its resistance to drought is medium to the extent that its root system has deeply installed roots.
- It has difficulties to absorb Magnesium from the soil, accusing it when the potassium fertilization is excessive.
- Vine varieties grafted with this rootstock may show magnesium deficiency symptoms .
8- Interaction with the variety of vine and production objectives
- The Fercal has a good affinity with most of the grape varieties.
- The vigor that this rootstock transfers to the vine varieties is medium high and is evident with its initial development speed and its early entry into production.
- Its influence on the vegetative cycle of the vine is within the average.
- In terms of fertility and yield , the Fercal is well balanced and allows to obtain quality productions.
- It gives a particularly good result with the Syrah variety .
