Plants you can trust

Scion Varieties

Listed here are the varieties and clones we propagate in our mother blocks which are available for grafted and ownrooted plants production. All our material is certified. As an ENTAV-INRA licensee we mainly propagate ENTAV clones which we have worked with for a long time due to our French background. For any variety or clone not on this list please contact us, we will do our best to provide you with the material you need. We follow a strict testing protocol for all budwood we use, either internally supplied through our mother blocks or externally through our various partnerships.

Red Wine Varieties

Variety	FPS Clones	ENTAV-INRA Clones
Cabernet Franc		214 - 327 - 623
Cabernet Sauvignon	4.1 - 7.1 - 8.1 ** - 61 * **	15 - 169 - 338 - 412 - 685
Counoise Noir		508
Gamay Noir		358
Grenache Noir		515
Malbec (Cot)		596 - 598
Merlot		181 - 348
Mourvedre		450
Nero di Avola	1 *
Petit Verdot		400 - 1058
Pinot Meunier		864
Pinot Noir	2A.1 ** - 73.1 ** - 125 *	667 - 743 - 943
Primitivo (Zinfandel)	3.1 ** - 5.1 **
Syrah	19 *
Tannat		717
Tempranillo		770

*: Guillaume Grapevine Nursery proprietary clone, see below for additional information. **: Budwood production starting in 2021.

White Wine Varieties

Variety	FPS Clones	ENTAV-INRA Clones
Chardonnay	4.1 ** - 87 *	76 - 96 - 548
Chenin Blanc		982
Colombard		551
Gewurztraminer		47
Gros Manseng	1 *
Marsanne		574
Melon		229
Muscat Blanc		453
Pinot Blanc		54
Pinot Gris		52
Riesling		49
Roussanne		468
Sauvignon Blanc	1.1 **	376 - 530 - 906
Semillon		173
Viognier	6 *	642

*: Guillaume Grapevine Nursery proprietary clone, see below for additional information. **: Budwood production starting in 2021.

Guillaume Grapevine Nursery Proprietary Clones

As a result of our passion for grapes and vines, for years we have been researching new clones of the main varieties in French aged vineyards with the objective of enriching the Vinifera genetic heritage while retaining, and sometimes improving, the features which have made the success of these varieties for centuries.

We have made the fruit of our research available in America by registering these clones at UC Davis Foundation Plant Services. The samples we brought to the US underwent a quarantine period and intensive testing before we started propagating them in our mother blocks in 2013. They are now available for grapevine production exclusively from Guillaume Grapevine Nursery. Listed below is the list and a short presentation of our proprietary clones currently available, please contact us for more information.

Cabernet Sauvignon FPS 61

Cabernet Sauvignon 61 was selected in a 72-year old vineyard in the Bordeaux Medoc area. It produces medium-sized clusters and berries and delivers rich, complex wine, very persistent in mouth and with outstanding smooth tanins. These characteristics make this clone the perfect candidate to produce premium wines.

Chardonnay FPS 87

Chardonnay 87 is the result of a 10-year selection process in Burgundy's Meursault area aged vineyards (60 year-old on average). 8 clones were first selected, tested for viruses then put in observation and micro-vinified for 10 years. Chardonnay 87 was selected for its ability to produce delicate and fine wines, with an exceptional mouthfeel.

Gros Manseng FPS 1

This selection comes from an old vineyard in South Western France. Gros Manseng 1 is a medium producer with small clusters but good fertility. It has complex citrus and flowers aromas, allowing to produce fresh and mineral wines. It can be used in blends to bring freshness, it also has good potential for late harvest wines.

Nero di Avola FPS 1

Nero di Avola is an Italian variety which enjoys a lot of sun and ripens later than Cabernet Sauvignon. It shows a good resistance to mildew. Nero di Avola 1 comes from Sicily, it is a high yielding clone which produces qualitative grape and very deep colour. Its powerful blackberry and red fruit aromas make it really special, it can either be used for blends or as a standalone.

Pinot Noir FPS 125

Pinot Noir 125 comes from the Cotes-de-Beaune area in Burgundy. At the start of the selection process, 15 clones were chosen in various aged vineyards, then put into observation and micro-vinifed for 10 years. Pinot Noir 125 was finally chosen for its ruby red colour, smooth and powerful tannins, and a lesser sensibility to Botrytis (30% less sensitive than standard clones according to our measurements). With a low production level on average, the Pinot Noir FPS 125 offers an outstanding potential for premium wines.

Syrah FPS 19

This clone of Syrah comes from the Northern Cotes-du-Rhone area. It is the result of a 12-year selection process, which was first intended to remedy to the well-known Syrah decline while retaining the characteristics and the typicality of the variety. Among 8 clones first selected, Syrah 19 proved immune to Syrah decline and able to deliver intense and perfumed wines as well as medium-yield harvest.

Viognier FPS 6

Viognier 6 also comes from Northern Cotes-du-Rhone, more precisely the Condrieu area. After 6 years of observation and micro-vinifications, it was chosen among 12 candidates selected in aged vineyards for its aromatic power, with peach and apricot flavours, and its freshness.

Rootstock Varieties

Listed below is the list of rootstock varieties we propagate to produce grafted plants and rootings, as well as some basic information about each one. Most of the rootstock varieties we offer come directly from or are crossbreeds of the three main North American Vitis species; Vitis Riparia, Vitis Rupestris, Vitis Berlianderi. Thanks to this wide range of rootstock varieties, our plants can adapt to any climate and soil conditions.

Riparia Gloire de Montpellier Genealogy: Vitis Riparia Low vigor with a rather shallow rooting depth, very good in fertile soils Short vegetative cycle with very good maturity of grapes Very low lime tolerance (maximal active lime tolerance level: 6%)

Saint George (Rupestris) Genealogy: Vitis Rupestris High vigor High Philloxera resistance Medium to high salinity tolerance Latent virus tolerant Good in deep soils

101-14 Genealogy: Vitis Riparia x Vitis Rupestris Similar agronomic aptitudes as Riparia Gloire de Montpellier with slightly higher vigor Grows well in wet soils but cannot bear drought conditions Maximal active lime tolerance level: 9%

3309C Genealogy: Vitis Riparia x Vitis Rupestris Medium vigor Good behavior in deep soils that are not too wet, but not too dry Gives very good maturities and is still a reference to make great wines Maximal active lime tolerance level: 11%

Schwarzmann

• Genealogy: Vitis Riparia x Vitis Rupestris
• Low vigor
• Good resistance to nematodes

420A Genealogy: Vitis Riparia x Vitis Berlianderi Named "Riparia of the lime soils" because of its very low vigor and its earliness Like Riparia Gloire, gives very good products in rather fertile soils Maximal active lime tolerance level: 20%

5C Genealogy: Vitis Riparia x Vitis Berlianderi Vigorous and early Well adapted to meager soils or to rather tardy situations Maximal active lime tolerance level: 20%

5BB Genealogy: Vitis Riparia x Vitis Berlianderi High vigor Good in meager and wet soils Very well adapted to replace the dead vine-stock in old vineyards Maximal active lime tolerance level: 20%

SO4 Genealogy: Vitis Riparia x Vitis Berlianderi Early and rather vigorous Fructiferous rootstock which gives good product in many kinds of situations Best results in not too fertile or wet soils Maximal active lime tolerance level: 18%

110R Genealogy: Vitis Rupestris x Vitis Berlianderi Very good drought resistance Rather fructiferous Medium to high vigor Doesn't like excess water in the spring Maximal active lime tolerance level: 17%

140R Genealogy: Vitis Rupestris x Vitis Berlianderi Very high vigor Drought tolerant Very robust rootstock, particularly well adjusted to dry, meager and shallow soils Good lime resistance (maximal active lime tolerance level: 24%)

1103P Genealogy: Vitis Rupestris x Vitis Berlianderi High vigor Does well in both drought and excess water conditions Good salt tolerance Maximal active lime tolerance level: 18%

1616C

• Genealogy: Vitis Riparia x Vitis Solonis
• Low vigor
• Low drought tolerance
• High phylloxera and wet soil tolerance
• Best on fertile, medium to fine textured soils

039-16

• Genealogy: Vitis Vinifera x Vitis Rotundifolia
• High Philloxera resistance
• Does poorly on coarse, sandy soils due to low root knot nematode tolerance
• Tolerance to Fanleaf virus

Genealogy of the main rootstock varieties we propagate