1- Portainjertos 161-49 Couderc
The 161 49 C rootstock is very widespread in Spain due to its optimal adaptation to limestone soils. It is currently being displaced by RU-140.
Rootstock obtained by Georges Couderec , to which his name refers.
3- Genetic Origin
It comes from the cross of Vitis Riparia and Vitis Berlandieri.
4- Agronomic Characteristics
- Resistant up to 25% active limestone .
- It is of medium vigor and provides the graft with a regular production and a slight advance in the ripening dates.
- Drought resistance is medium to good.
- It is slightly sensitive to temporary excesses of humidity in spring.
- It is well adapted to soils calcareous or clayey-calcareous, very compact, light and deep.
- Avoid on very compact soils.
- Its resistance to salinity is zero.
5- Resistance to nematodes
Resistencia media a Meloidogyne incognita, y sensible a Meloidogyne arenaria.
6- Adaptation to the environment
The speed of development and entry into production provided by the 161-49 is a bit slow.
The vigor provided by the rootstock is medium and the vegetative development is balanced.
7- Interaction with the variety
The products obtained from plants grafted on 161-49 are normally of high quality and the grafts made with Chardonnay , Colombard, Pinot Noir and Ugni Blanc are particularly appreciated.
It gives problems of incompatibility with the graft on varieties such as Carignan, Gammay and Servant.