Fercal
| Fercal | |
|---|---|
| Synonyms | Piglet |
|
|
| Art | Interspecific crossing |
| use | |
| origin | France |
| breeder | INRA Bordeaux |
| Breeding year | 1958/1959 |
| VIVC no. | 4087 |
| ancestry | |
|
Hybrid from |
|
| List of grape varieties | |
Fercal is a rootstock for vines for the biotechnical control of the root aphid of varieties susceptible to phylloxera ( Vitis vinifera ). It is particularly characterized by its very high tolerance to lime and its good resistance to drought . No other type of rootstock currently known can tolerate so much lime.
ancestry
Fercal is a cross of ( Vitis berlandieri × Ugni Blanc ) 1B × Richter 31 which was bred by Roger Pouget in 1958/1959 at the Institut national de la recherche agronomique (INRA) in Bordeaux .
- Judges 31 = Berlandieri Resseguiere 2 × Novo Mexicana (= Riparia × Rupestris × Candicans )
Ampelographic features
- Fully grown leaves : kidney-shaped with a U-shaped stem
- Shoots: strong stinginess - is unfavorable for cut vine production
- annual wood: chestnut brown, hairy
- Flower: female
- Grapes: small, with small round, black-blue berries
Properties - use
Fercal gives the grafted noble variety medium-strong growth. Their most important property is that they can withstand very high lime content in the soil of up to 60% ( total lime ). An active lime content of up to 40% or a chlorosis index ( I ndice de P ouvoir C hlorosant = IPC) value of up to 120 without inducing chlorosis . It has good drought resistance, but waterlogging in spring is also well tolerated. Heavy soils are unfavorable for 'Fercal'. Particularly on soils with a high potassium content , Fercal has problems absorbing the nutrient magnesium and therefore tends to have a magnesium deficiency.
Because of its special properties, it is used as a base on very lime-rich soils. The underlay 41 B Millardet et de Grasset used in such locations is now replaced by 'Fercal'. Also on less calcareous soils, are suitable for Fercal. This is especially true for grape varieties susceptible to chlorosis and for locations that often suffer from drought.
literature
- Karl Bauer, Ferdinand Regner , Barbara Schildberger: Viticulture (= AV book. ). 9th, updated edition. Cadmos, Vienna 2013, ISBN 978-3-7040-2284-4 , p. 121.
- Jancis Robinson : The Oxford Wine Lexicon. 3rd, completely revised edition. Hallwag, Munich 2007, ISBN 978-3-8338-0691-9 , p. 747.
Web links
- Le calcaire total et le calcaire actif on wiki.laboratoirelca.com
- Fercal in the database Vitis International Variety Catalog of the Institute for Vine Breeding Geilweilerhof (English)
- Catalog of varieties France, 'Fercal' pictures, French.
- Institute of Vine and Wine, France
- Josef Terleth: Influence of the rootstock on the growth of the vine. In: fruit growing, viticulture. Announcements from the South Tyrolean advisory ring for fruit and wine growing. Vol. 48, No. 4, 2011, ZDB -ID 406433-1 , pp. 177–120, ( digital version (PDF; 460 kB) ).
- Wolfgang Renner: New documents in viticulture? In: Haidegger Perspektiven. 1, 2010, pp. 10–11, digital version (PDF; 448 kB) .
- Valérie Laucou, Jean-Michel Boursiquot, Thierry Lacombe, Louis Bordenave, Stéphane Decroocq, Nathalie Ollat: Parentage of grapevine rootstock 'Fercal' finally elucidated. In: Vitis. Vol. 47, No. 3, 2008, pp. 163–167, ( digital version (PDF; 460 kB) ).
Individual evidence
- ^ Karl Bauer, Ferdinand Regner, Barbara Schildberger: Viticulture. 9th, updated edition. 2013, p. 121.