Technical Sheet

Berlandieri x Rupestris Group

775 Paulsen

Origin: Italy (Paulsen – 1894).

VEGETATIVE FEATURES

Leaf: medium-sized, kidney-shaped, whole, with a wide open V-shaped petiolar sinus; the upper side is glossy, with hairless dark green flap, bullous; the primary ribs are light green; the lower side is hairless, green-colored.

Woody shoot: long, branched, abundant development of secondary shoots, hairless, of gray-brown color, slightly pruinose.

CULTURAL APTITUDES

Ability to promote fruit setting:

acceptable

Root system regeneration:

medium

Adaptability to soil type:

compact: mediocre
wet: poor
dry: good
stony: good
acidic: poor
saline: acceptable

Branching pattern of the roots:

taproot

Tendency to emission of suckers:

high

Susceptibility to deficiencies or excesses:

deficiency of K: sensitive
deficiency of Fe: low sensitivity
deficiency of Mg: low sensitivity
deficiency of Zn: low sensitivity

Resistance to root phylloxera:

high

Resistance to leaf phylloxera:

low

Susceptibility to fungal and plant diseases:

downy mildew: low
powdery mildew: low
anthracnose: sensitive
eutypa disease: it induces sensitivity

OTHER INFORMATION

Behavior in the nursery: the rooting is good and constant; it benefits from mulching so to delay the rooting process.

Behavior in the propagation block: it doesn't show problems of sorts when cultivated sprawling on the ground, however, when grown on trellis, it shouldn't be repeatedly cleaned from secondary shoots so to preserve a thorough lignification.

Behavior in the open field: it induces good vigor; it is not suitable to dense rows; sucker management is crucial; it delays the vegetative cycle while keeping a quite acidic must; it needs a moderate fertility and access to water during the vegetative cycle.