Grapevine named ‘FLEURTAI’

Information

  • Patent Grant
  • PP28021
  • Patent Number
    PP28,021
  • Date Filed
    Friday, March 27, 2015
    9 years ago
  • Date Issued
    Tuesday, May 16, 2017
    7 years ago
  • US Classifications
    Field of Search
    • US
    • PLT 207000
  • International Classifications
    • A01H5/08
Abstract
A new and distinct variety of grapevine plant named ‘FLEURTAI’, primarily adapted to the growing conditions of the temperate regions and characterized by its strong vigor; erect growth habit; small to medium circular shaped leaves with medium texture; medium sized berry clusters with golden-green berries that have an amber nuance on the sunny side of the berry, soft flesh, neutral taste, and no flesh coloration primarily used for wine; early harvesting time; and resistance to winter temperatures (to −23° C.), resistance to downy mildew, and tolerance to powdery mildew.
Description

Latin name of the genus and species of the plant claimed: Vitis×vinifera (hybrid).


Variety name: ‘FLEURTAI’.


BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct summer/fall bearing grapevine variety, botanically known as Vitis vinifera, and hereinafter referred to by the name ‘FLEURTAI’.


The new grapevine ‘FLEURTAI’ is a product of a controlled breeding program conducted by the inventors in Udine, Italy. The objective of the breeding program was to develop a new grapevine variety particularly characterized by resistance to cold (<−20° C.), resistance to downy mildew (Plasmopara viticola), and tolerance to powdery mildew (Uncinula necator).


The new grapevine ‘FLEURTAI’ originated from a cross made by the inventors in Udine, Italy. The female or seed parent is the grapevine variety, Vitis vinifera cv. ‘Tocai Friulano’ (unpatented), and the male or pollen parent is the grapevine variety, Vitis cv. ‘20/3’ (Bianca×SK77-4/5) (unpatented).


The new grapevine ‘FLEURTAI’ was discovered and selected by the inventors as a single flowering plant within the progeny of the stated cross in a controlled environment in 2002 in Udine, Italy. Asexual reproduction of the new grapevine variety by grafting was first performed in February 2004 in Rauscedo, Friuli Venezia Giulia region, Italy, and has demonstrated that the combination of characteristics as herein disclosed for the new cultivar are firmly fixed and retained through successive generations of asexual reproduction. The new cultivar reproduces true to type.


SUMMARY OF THE INVENTION

‘FLEURTAI’ is primarily adapted to the climate and growing conditions of the temperate regions with average yearly temperature about 13° C., minimum winter temperature about −20° C., annual rainfall around 700-1500 mm of rain (e.g. North-Eastern Italy, Friuli). This region provides the necessary year-round temperatures required for it to produce and maintain a strong vigorous plant with consistent fruit production from April through November on primocanes and in the ensuing year from April through November on the floricanes.


The following traits have been repeatedly observed and are determined to be unique characteristics of ‘FLEURTAI’, which in combination distinguish this grapevine plant as a new and distinct variety.

    • 1. Strong vigor;
    • 2. Erect growth habit;
    • 3. Small to medium circular shaped leaves with medium to dark green upper surfaces and light green lower surfaces and medium texture;
    • 4. Medium size, loose to medium dense, conical berry clusters with two middle size wings; golden-green color berries with amber nuances on the sunny side of the berry, soft flesh, neutral taste, no flesh coloration; primarily for wine; maturing in late August (Middle Friuli, North-Eastern Italy);
    • 5. Primocanes and floricanes with oblate cross section, brownish color, no lenticels, and short-middle internodes (diameter: 8 mm);
    • 6. Late August harvesting time (Middle Friuli, North-Eastern Italy); and
    • 7. Resistance to winter temperature (−23° C.), resistance to downy mildew, and tolerance to powdery mildew.


Plants of the new grapevine ‘FLEURTAI’ differ from plants of the parents, Vitis vinifera ‘Tocai Friulano’ (unpatented) and Vitis cross ‘20/3’ (unpatented), in the following characteristics described in Table 1.









TABLE 1







Comparison with Parent Varieties












Female Parent
Male Parent


Charac-
New Cultivar
‘Tocai Friulano’
‘20/3’


teristic
‘FLEURTAI’
(unpatented)
(unpatented)





vigor
strong
strong
medium


growth
erect
semi-erect
semi-erect


habit





leaf
small to medium
medium size,
Medium size,



size, medium to
light green color
light green color



dark green color
(upper surface),
(upper surface),



(upper surface),
green color (lower
green color (lower



light green color
surface), very few
surface), no hairs



(lower surface), no
hairs in both
in both surfaces,



hairs in both
surfaces, circular
wedge-shaped—



surfaces, circular
shape, medium
kidney-shaped,



shape, medium
texture
medium texture



texture




cluster
very low-low
low weight,
low weight,



weight, conical
conical, with 1-2
conical, with 1-2



with two middle
wings, dense, berry
wings, medium



size wings, loose or
skin with green-
dense, berry skin



medium dense,
yellow color, soft
with green-yellow



berry skin with
flesh, neutral taste,
color, slightly firm



golden-green color
no flesh coloration,
flesh, neutral taste,



with amber nuances
use: wine,
no flesh coloration,



in the sunny side of
maturity: medium
use: wine,



berry, soft flesh,
(early September
maturity: early



neutral taste, no
at Udine, North-
(late August,



flesh coloration,
Eastern Italy)
Middle Friuli,



use: wine, maturity:

North-Eastern



early (late August,

Italy)



Middle Friuli,





North-Eastern





Italy)




primocane
oblate cross
circular cross
oblate cross


and
section, brownish
section, brownish
section, brownish


floricane
color, lenticels:
color, lenticels:
color, lenticels:



absent, short-
absent, short-
absent, medium



medium internodes,
medium
internodes,



diameter: small
internodes,
diameter small



(about 8 mm)
diameter small 8
(about (about 8




mm)
mm)


harvesting
early (last decade
Early-medium
Early (end August,


time
August, Middle
(early September,
Middle Friuli,



Friuli, North-
Middle Friuli,
North-Eastern



Eastern Italy)
North-Eastern
Italy)




Italy)



resistances
resistant to winter
Average resistance
resistant to winter



temperature (−23°
to winter tempera-
temperature not



C.), resistant to
ture (−15° C.),
checked, resistant



downy mildew,
susceptible to
to downy mildew,



tolerant to powdery
downy mildew,
resistant to



mildew
susceptible to
powdery mildew




powdery mildew









Of the many commercial cultivars known to the present inventor, the most similar to the new grapevine ‘FLEURTAI’ is the female parent ‘Tocai Friulano’, to which a comparison has been provided above.





BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photographs illustrate the overall appearance of the new grapevine ‘FLEURTAI’ showing the colors as true as is reasonably possible with colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description, which accurately describe the color of ‘FLEURTAI’.



FIG. 1A and FIG. 1B show a typical fruit cluster of ‘FLEURTAI’ taken on Aug. 25, 2012, in Udine, Italy.



FIG. 2 shows a typical mature leaf (upper surface, left and lower surface, right) of ‘FLEURTAI’ taken on Jun. 15, 2012, in Udine, Italy.



FIG. 3 shows a typical mature vine of ‘FLEURTAI’ taken on Aug. 3, 2012.



FIG. 4 shows a close-up view of typical mature fruit of ‘FLEURTAI’ taken on Aug. 25, 2012, in Udine, Italy





DETAILED BOTANICAL DESCRIPTION

The following description of ‘FLEURTAI’ unless otherwise noted, is based on observations taken during the 2011, 2012, and 2013 growing seasons(s) in Udine, Italy and Fossalon di Grado (GO), Italy, from plants dug from a nursery located in Vivai Cooperativi Rauscedo, Rauscedo (PN), Italy during the beginning of December 2007 and planted approximately 16 to 20 weeks later in Udine, Italy and Fossalon di Grado (GO), Italy. The phenotypical descriptions and color designations stated for the new variety may vary, depending upon variations in environmental factors, including weather (temperature, humidity and light intensity), day length, soil type, location and cultural conditions. ‘FLEURTAI’ has not been observed under all possible environmental conditions.
















‘TOCAI FRIULANO’


Characteristic
‘FLEURTAI’
(unpatented)







GENERAL




Resistance to
Resistant to downy
Susceptible to downy


pest/disease
mildew, tolerant to
mildew and to powdery



powdery mildew
mildew


Resistance to natural
Resistant to winter cold
Resistant to winter cold


elements
down to −23° C.
down to −15° C.


VINE




Vigor
strong
strong


Trunk diameter
6 cm (6 yrs.-old plant)
6.5


Bark




color
RHS 177B
Dark brown


underbark color
RHS 179B
Light brown


texture
n.a.
n.a.


Canes




length
Internode length cm 10.5
Internode length about




cm 10


width
8 mm
8 mm


Shoots




shape
Erected, cross section:
Semi-erected, cross



oblate, surface: with
section: circular,



stripes, nodes and
surface: smooth, nodes



internodes without hairs
and internodes without




hairs


color
internodes with red (RHS
Internodes with green



185B) and green
color on ventral and



(RHS144B) pigmentation
dorsal side, nodes with



on both sides, nodes with
green ventral and dorsal



red (RHS 185B) and green
side



(RHS144B) dorsal side




and green (RHS144B)




ventral side



Tendrils




form
Bifid or trifid
bifid


color
RHS 145C
Green


texture
normal
normal


number
2 or <2 consecutive
2 or <2 consecutive


Buds




size
average
average


shape
round
round


color
RHS 139C
Light brown


number
2/node
2/node


time of budbreak
early
early-medium


LEAVES




Size
small-medium
medium


Number of leaflets
5
5


Glossiness
Medium-high
medium


Cross section shape
V-shaped
V-shaped


Color (immature)




Upper surface
RHS 140B
Light green


Under surface
RHS 140B
green


Color (mature)




Upper surface
RHS 141A
Medium green


Under surface
RHS 141B
Darker green


Petiole




Length (cm)
6.2
6.0


Color (upper surface)
RHS 145C
green


Color (under surface)
RHS 145C and RHS180A
green


Stipule orientation
n.a.
n.a.


FLOWERS




Flowering period
End of May
End of May


(time of beginning of




flowering)




Sex
hermaphrodite
hermaphrodite


Size
Average
average


Diameter (cm)
0.3 (stamens)
0.3 (stamens)


Pistil Color
RHS 149A



Stamen Color
RHS 4D



Fragrance
average
average


Flower number (at
n.a.
n.a.


3rd node from tip of




lateral mean and




range)




Petals




Length (cm)
n.a.
n.a.


Width (cm)
n.a.
n.a.


Overall shape
calyptra
calyptra


Calyptra Color
RHS 134A
green


Sepals




Length (cm)
n.a.
n.a.


Width (cm)
n.a.
n.a.


Overall shape
n.a.
n.a.


Color (immature)
n.a.
n.a.


Upper surface




Under surface




Color (mature)
n.a.
n.a.


Upper surface




Under surface




Pedicel




Length (mm)
45 (cluster)
70


Color
RHS 145C
green


FRUIT




Primocane time of
August 25th
September 7th


fruiting (1st pick)




Clusters




cluster weight
g 170
g 230


cluster shape
conical
conical


cluster length
mm 180
medium


avg. berries per
200
220


cluster




avg. clusters per
2
2


shoot




Berries




Berry size
Very low to low (g 1.8)
Very low to low (g 1.5)


Berry length (cm)
1.76
1.50


Berry width (cm)
1.56
1.50


Overall shape of
broad ellipsoid
globose


berry




Berry Texture
soft
soft


Berry Skin Color
RHS 137C
green


(immature)




Berry Skin Color
RHS 4D
green


(mature, at 19° Bx)




Berry Flesh Color
RHS 149D



Soluble solids (%)
22.6
21.1


Titratable acidity (as




g/L tartaric acid)
4.6
5.7


Sugar/acid ratio
4.9
3.7


Firmness
soft
soft


Seeds
2-3
2-3


Seed color
RHS 166C



Skin cracking?
no
rarely


Juice color
transparent
transparent


Berry taste
Neutral
neutral


Eating quality
n.a.
n.a.


Berry uses
wine
wine


Shipping quality
n.a.
n.a.








Claims
  • 1. A new and distinct grapevine, referred to as ‘FLEURTAI’, as herein described and illustrated by the characteristics set forth above.
Priority Claims (1)
Number Date Country Kind
PBR 2015/0363 Feb 2015 QZ national
Related Publications (1)
Number Date Country
20160242340 P1 Aug 2016 US