Innovations

Pépinières Guillaume have been engaged in specific research programmes on mycorhizes fungus since 1996.

Our expertise enables us to select inoculum strains providing survivability and efficiency in the grape vine plant, qualitites that have been proved on in the medium and long run. 

Mycorhization is a natural process, a symbiosis interaction between the mycorhize fungus present in the soil and the grapevine. The fungus thrives off the sugars produced by the plant and in exchange helps the rapid absorption of low mobility nutrients and water by the vine. 

Our research has proved that microscopic fungus improves the development of the vine root through symbiotic action : the plant absorbs nutrients more easily, strengthening the plant root and increasing its defence mechanism against root pathogens.

For several years, Pépinières Guillaume has been participating in
research programs on viral premunition against
grapevine fanleaf virus. This work involves studying hypo-virulent strains of
GFLV (Grapevine Fanleaf Virus) capable of conferring greater
tolerance to viral infection.

In trials conducted to date, plants derived from these protocols
have demonstrated an ability to maintain adequate production in
conditions where conventional plants would rapidly decline.

Within the strict framework of current phytosanitary regulations,
the use of plant material carrying a viral strain (even
a hypo-virulent one) is restricted to experimental settings or to
programs supervised by the competent authorities.

Since it carries a viral strain, this type of plant must be
strictly reserved for replacing vines in areas infected
with grapevine fanleaf virus.

Conscious of the environmental factors we face and committed for many years to sustainable winegrowing techniques of quality, Pépinières Guillaume have developed a range of grapevine plants that have a low environmental impact named ‘SymBIOSE’. 

Current legislation does not permit the production of ‘organic’ plants in France but we have endeavoured to elaborate  an innovative protocol which limits the use of synthetic chemicals as much as possible.

All waxes used on plants and the vast majority of products employed are organic certified.

Organic substances are also used to stimulate natural defence barriers in our plants. 

All our nursery fields are on organically farmed land and weedkillers are strictly banned. 

Our Vital plant was developed to make replacing operations easier favouring quick and optimal root growth. 

The bead robustness of this traditional plant is rigourously controlled and it is protected by a mycorhize pellet selected by our laboratories. The plant is coated in fertiliser for optimal root growth and packaged in a protective organic biodegradable film.

This product is particularly effective in :

• Enhancing the natural defences in the plant
• Encouraging rapid root growth of quality 
• Improving the capacity for absorbing the necessary nutrients in the soil
• Reducing planting time