Berlandieri x Rupestris Group

110R

Origin: France (Richter – 1889).

VEGETATIVE FEATURES

Leaf: small, whole, kidney-shaped, with a very open petiolar sinus, a smooth upper side, hairless, and a dark green flap, glossy; the lower side is hairless, with reddish ribs at the base.

Woody shoot: long, uniform, very branched, elliptical, striped, hairless, partially pruinose, intensely purple-reddish with darker brown stripes.

CULTURAL APTITUDES

Ability to promote fruit setting:

quite good

Root system regeneration:

poor

Adaptability to soil type:

compact: poor
wet: poor
dry: excellent
stony: good
acidic: good
saline: poor

Branching pattern of the roots:

semi-taproot

Tendency to emission of suckers:

poor

Susceptibility to deficiencies or excesses:

deficiency of K: sensitive
deficiency of Fe: low sensitivity
deficiency of Mg: low sensitivity
deficiency of Zn: sensitive
excess of B: sensitive
deficiency of P: senstive

Resistance to root phylloxera:

very high

Resistance to leaf phylloxera:

poor

Susceptibility to fungal and plant diseases:

downy mildew: very low
powdery mildew: very low
anthracnose: sensitive
leaf spot: very sensitive
eutypa disease: it induces sensitivity
rachis desiccation: it promotes sensitivity

OTHER INFORMATION

Behavior in the nursery: the rooting is acceptable for most grape varieties; it triggers a quite good development of scions; it benefits from mulching and hormone treatments; it tends to develop abnormal swellings at the grafting point.

Behavior in the propagation block: : if it's grown on trellis, it is unlikely to give problems of sorts, provided the green pruning is moderate, otherwise the result would be a belated lignification; it is not advisable to let it grow sprawling on the ground in fresh and temperate climates.

Behavior in the open field: growth resumption is not very strong, later on, however, it shows a noteworthy strength; it is suitable to dense row plantation; it delays the vegetative cycle, it needs warm soils, it is not suitable to humid soils (even though temporarily humid), it is not suitable to replanting, it has a poor affinity with some Syrah clones. Syrah.