Common name: Grapevine.
Botanical classification: Vitis labrusca L. x Vitis vinifera L.
Variety denomination: ‘SUNNY HEART’.
CROSS-REFERENCE TO RELATED APPLICATION
This application claims priority of Japanese plant variety rights application No. 37121 filed Nov. 13, 2023, the entire content of which is incorporated by reference herein.
BACKGROUND OF THE NEW VARIETY
The present invention relates to a new and distinct variety of grapevine, Vitis labrusca L. x Vitis vinifera L., which has been given the variety denomination ‘SUNNY HEART’.
This new grapevine has green young leaves, R.H.S. Colour Chart: 148C, and berries having a broad ellipsoid shape, red skin, and muscat flavor, that distinguish it, notably from its male parent ‘SHINE MUSCAT’ (berries having yellow green skin) and female parent ‘626-84’ (berries having dark red violet skin and sharp brisk flavor), as well as from reference varieties ‘SEKIREI’ (reddish young leaves, R.H.S. Colour Chart: 183B, 144A, berries having narrow ellipsoid shape and pale red skin) and ‘KOTOPY’ (greenish-red young leaves, R.H.S. Colour Chart: 148C, 178B, berries having narrow ellipsoid shape and pale red skin).
ORIGIN OF THE VARIETY
The parent varieties are ‘SHINE MUSCAT’ (male parent) (not patented in the U.S.) and ‘626-84’ (female parent) (not patented in the U.S.), respectively.
The variety was developed and propagated in Akitsu, Hiroshima, Japan.
The variety was reproduced asexually in Akitsu, Hiroshima, Japan by vegetative reproduction by grafting one-year-old cuttings on rootstocks.
In 2004, seedlings from crossing the parent varieties and collecting seeds were grown.
In 2007, they were grafted on root stock.
In 2009, the first fruit was harvested and lines were selected having fruit with good taste.
In 2016, plants were selected and named ‘Akitsu 32’ as temporary name for purposes of confidential testing for local adaptability.
In 2018-2022, growing tests were performed under confidentiality conditions at thirty-seven testing stations in Japan.
In 2022, budding and berry ripening times were measured.
On Nov. 13, 2023, an application for plant variety rights No. 37121 was filed for the present variety in the Japanese Plant Variety Protection Office of the Ministry of Agriculture, Forestry and Fisheries (MAFF), Japan.
Cultivation of the variety does not require special conditions or treatments.
The variety is currently mainly intended for fruit production (table grape).
SUMMARY OF THE VARIETY
The variety is distinguished by green young leaves, R.H.S. Colour Chart: 148C, and berries having a broad ellipsoid shape, red skin, and muscat flavor, that distinguish it, notably from its male parent ‘SHINE MUSCAT’ (berries having yellow green skin) and female parent ‘626-84’ (berries having dark red violet skin and sharp brisk flavor), as well as from reference varieties ‘SEKIREI’ (reddish young leaves, R.H.S. Colour Chart: 183B, 144A, berries having narrow ellipsoid shape and pale red skin) and ‘KOTOPY’ (greenish-red young leaves, R.H.S. Colour Chart: 148C, 178B, berries having narrow ellipsoid shape and pale red skin).
A comparison with the male parent ‘SHINE MUSCAT’ is as follows (evaluation based on averages):
| TABLE 1 |
| |
| |
|
Male parent |
Present variety |
| |
|
‘SHINE |
‘SUNNY |
| |
|
MUSCAT’ |
HEART’ |
| No. |
Characteristics |
States |
States |
| |
| 59 |
Mature leaf: depth of |
medium |
shallow |
| |
upper lateral sinuses |
|
|
| 63 |
Mature leaf: ratio length/ |
medium |
small |
| |
width of teeth |
|
|
| 91 |
Berry: color of skin |
yellow green |
Red (RHS |
| |
(without bloom) |
(RHS 146C) |
187B) |
| |
A comparison with the female parent ‘626-84’ is as follows (evaluation based on averages):
| TABLE 2 |
| |
| |
|
Female |
Present variety |
| |
|
parent |
‘SUNNY |
| |
|
‘626-84’ |
HEART’ |
| No. |
Characteristics |
States |
States |
| |
| 91 |
Berry: color of skin |
dark red violet |
Red (RHS |
| |
(without bloom) |
(RHS 184B) |
187B) |
| 101 |
Berry: particular flavor |
sharp brisk |
Muscat |
| |
A comparison with the reference varieties ‘SEKIREI’ is as follows (evaluation based on averages):
| TABLE 3 |
| |
| |
|
Reference |
Present variety |
| |
|
variety |
‘SUNNY |
| |
|
‘SEKIREI’ |
HEART’ |
| No. |
Characteristics |
States |
States |
| |
| 8 |
Young shoot: prostrate |
absent or very |
very dense |
| |
hairs on tip |
sparse |
|
| 11 |
Young leaf: color of |
dark copper-red |
Green (RHS |
| |
upper side of blade |
(RHS 183B, |
148C) |
| |
|
144A) |
|
| 12 |
Young leaf: prostrate |
absent or very |
very dense |
| |
hairs between main |
sparse |
|
| |
veins on lower side |
|
|
| |
of blade |
|
|
| 57 |
Mature leaf: blistering |
weak |
medium to |
| |
of upper side of blade |
|
strong |
| 59 |
Mature leaf: depth of |
medium |
shallow |
| |
upper lateral sinuses |
|
|
| 90 |
Berry: shape |
narrow ellipsoid |
broad ellipsoid |
| |
A comparison with the reference variety ‘KOTOPY’ is as follows (average evaluation):
| TABLE 4 |
| |
| |
|
|
Reference |
Present variety |
| |
|
|
variety |
‘SUNNY |
| |
|
|
‘KOTOPY’ |
HEART’ |
| |
No. |
Characteristics |
States |
States |
| |
| |
11 |
Young leaf: color of |
light copper-red |
Green (RHS |
| |
|
upper side of blade |
(RHS 148C, |
148C) |
| |
|
|
178B) |
|
| |
12 |
Young leaf: prostrate |
dense |
very dense |
| |
|
hairs between main |
|
|
| |
|
veins on lower side |
|
|
| |
59 |
Mature leaf: depth of |
medium |
shallow |
| |
|
upper lateral sinuses |
|
|
| |
66 |
Mature leaf: prostrate |
medium |
dense |
| |
|
hairs between main |
|
|
| |
|
veins on lower side |
|
|
| |
90 |
Berry: shape |
narrow ellipsoid |
broad ellipsoid |
| |
A comparison with both ‘SEKIREI’ and ‘KOTOPY’ is as follows (average evaluation):
| TABLE 5 |
| |
| |
|
|
|
Present |
| |
|
Reference |
Reference |
variety |
| |
|
variety |
variety |
‘SUNNY |
| |
|
‘SEKIREI’ |
‘KOTOPY’ |
HEART’ |
| No. |
Characteristics |
States |
States |
States |
| |
| 12 |
Young leaf: color |
dark copper- |
light copper- |
green (RHS |
| |
of upper side of |
red (RHS |
red (RHS |
148C) |
| |
blade |
183B, 144A) |
148C, 178B) |
|
| 13 |
Young leaf: pro- |
absent or very |
dense |
very dense |
| |
strate hairs between |
sparse |
|
|
| |
main veins on |
|
|
|
| |
lower side of blade |
|
|
|
| 59 |
Mature leaf: depth |
medium |
medium |
shallow |
| |
of upper lateral | |
|
|
| |
sinuses |
| |
|
|
|
| 90 |
Berry: shape |
narrow |
narrow |
broad |
| |
|
ellipsoid |
ellipsoid |
ellipsoid |
| |
BRIEF DESCRIPTION OF THE DRAWINGS
In the accompanying drawings, which are as nearly true as is reasonable possible to make in a color illustration of this type:
FIG. 1 is a color photograph showing a general view of the grapevine named ‘SUNNY HEART’ bearing vine;
FIG. 2 is a color photograph showing a bunch of grapes on the vine of ‘SUNNY HEART’;
FIG. 3 is a color photograph showing flower clusters of ‘SUNNY HEART’;
FIG. 4 is a color photograph showing flowers of ‘SUNNY HEART’;
FIG. 5 is a color photograph showing the flowers and separated organs of ‘SUNNY HEART’;
FIG. 6 is a color photograph showing a bunch of grapes cut from a vine of ‘SUNNY HEART’;
FIG. 7 is a color photograph showing berries of ‘SUNNY HEART’;
FIG. 8 is a color photograph showing cross-sections of berries of ‘SUNNY HEART’;
FIG. 9 is a color photograph showing berry shapes of ‘SUNNY HEART’ as well as ‘SEKIREI’ and ‘KOTOPY’ for comparison purposes;
FIG. 10 is a color photograph showing the upper and lower sides of young leaves of ‘SUNNY HEART’ as well as ‘SEKIREI’ and ‘KOTOPY’ for comparison purposes;
FIG. 11 is a color photograph showing the lower sides of mature leaves of ‘SUNNY HEART’ as well as ‘SEKIREI’ and ‘KOTOPY’ for comparison purposes.
Due to chemical and/or digital development, processing and printing, the plants or portions of plants depicted in the photographs may or may not be precisely accurate, when compared to the actual botanical specimens.
DETAILED DESCRIPTION OF THE INVENTION
The botanical description and the photographs are of the ‘SUNNY HEART’ plants evaluated in 2022 (including for the comparison with the reference plants ‘SEKIREI’ and ‘KOTOPY’. Values as provided are averages.
The plants shown on the photographs were grown at Akitsu, Hiroshima, Japan. The plant is a 5-year grown plant. The young leaf and flower were photographed on May 29, 2023, the mature leaf was photographed on Jun. 29, 2023, and the bunch and berry was photographed on Sep. 15, 2023.
Colors are given according to The R.H.S. (Royal Horticultural Society) Color Chart, Sixth Edition (2015).
BOTANICAL DESCRIPTION
| TABLE 6 |
| |
| No. |
Characteristics |
States |
Values |
| |
| |
| |
Tree |
|
|
|
| 1 |
Average height |
|
180 |
cm |
| 2 |
Average width |
|
60 |
cm |
| 3 |
Vigor |
strong |
|
|
| 4 |
Trunk diameter (at a |
|
19.8 |
mm |
| |
given height above |
|
(at 20 cm |
| |
soil line) |
|
above soil |
| |
|
|
line) |
| 5 |
Grown on rootstock |
Yes |
Teleki |
| |
|
|
selectia |
| |
|
|
Kober 5BB |
| 6 |
Time of bud burst |
early |
early April |
| |
|
|
(approx. |
| |
|
|
Apr. 7) |
| |
Young shoot |
|
|
| 7 |
Openness of tip |
wide open |
|
| 8 |
Prostrate hairs on tip |
very dense |
|
| 9 |
Anthocyanin coloration |
absent or |
|
| |
of prostrate hairs on tip |
very weak |
|
| 10 |
Erect hairs on tip |
absent or |
|
| |
|
very sparse |
|
| |
Young leaf |
|
|
| 11 |
Color of upper side of |
green |
148C (RHS) |
| |
blade |
|
|
| 12 |
Prostrate hairs between |
very dense |
|
|
| |
main veins on lower |
|
|
|
| |
side of blade |
|
|
|
| 13 |
Erect hairs on main |
absent or |
|
|
| |
veins on lower side of |
very sparse |
|
|
| |
blade |
|
|
|
| |
Shoot |
|
|
|
| 14 |
Average length of stem |
|
186 |
cm |
| 15 |
Average diameter of |
|
22.0 |
mm |
| |
stem |
|
|
|
| 16 |
Texture of stem |
rough |
|
| 17 |
Color of stem |
brown |
N200C, |
| |
|
|
200C (RHS) |
| 18 |
Average length of |
|
88 |
cm |
| |
branches |
|
|
|
| 19 |
Average diameter of |
|
16.0 |
mm |
| |
branches |
|
|
|
| 20 |
Texture of branches |
intermediate |
|
| 21 |
Color of branches |
grey-brown |
199C, |
| |
|
|
N199C |
| |
|
|
(RHS) |
| 22 |
Average length of |
|
5.9 |
m |
| |
shoots |
|
|
|
| 23 |
Average diameter of |
|
9.8 |
mm |
| |
shoots |
|
|
|
| 24 |
Texture of shoots |
smooth |
|
| 25 |
Color of shoots |
green |
144A (RHS) |
| 26 |
Attitude (before tying) |
semi-erect |
|
| 27 |
Color of dorsal side |
green and |
144A, 183B |
| |
of internodes |
red |
(RHS) |
| 28 |
Color of ventral side |
green |
144A (RHS) |
| |
of internodes |
|
|
| 29 |
Shoot: color of |
green and |
144A, 183B |
| |
dorsal side of nodes |
red |
(RHS) |
| 30 |
Shoot: color of ventral |
green |
144A (RHS) |
| |
side of nodes |
|
|
| 31 |
Erect hairs on inter- |
absent or |
|
| |
nodes |
very sparse |
|
| 32 |
Length of tendrils |
medium |
19.4 |
cm |
| |
Flower |
|
|
| 33 |
Average size of |
|
Width 1.5 mm, |
| |
flower buds |
|
Length 2 mm |
| 34 |
Color of flower buds |
green |
144A (RHS) |
| 35 |
Inflorescence |
panicle |
|
| 36 |
Average number of |
|
5 |
| |
petals on the flower |
|
|
| 37 |
Color of petals (top |
green |
144A (RHS) |
| |
surface) |
|
|
| 38 |
Color of petals |
green |
144B (RHS) |
| |
(bottom surface) |
|
|
| 39 |
Average petal size |
|
Width 0.4 mm, |
| |
|
|
Length 2 mm |
| 40 |
Length of flower |
medium |
19.3 |
cm |
| |
clusters |
|
|
|
| |
Sexual organs |
|
|
|
| 41 |
Sexual organs |
fully |
|
| |
|
developed |
|
| |
|
stamens |
|
| |
|
and fully |
|
| |
|
developed |
|
| |
|
gynoecium |
|
| 42 |
Average size of |
|
Width 6.0 mm, |
| |
seeds |
|
Length 8.3 mm |
| 43 |
Average number |
|
2.4 |
| |
of seeds |
|
|
| 44 |
Average color of |
greyed- |
165B (RHS) |
| |
seeds |
orange |
|
| |
Mature leaf |
|
|
| 45 |
Leaf arrangement |
Alternate |
|
| 46 |
Color of leaf |
green |
137B (RHS) |
| |
(top surface) |
|
|
| 47 |
Color of leaf |
yellow- |
148C (RHS) |
| |
(bottom surface) |
green |
|
| 48 |
Shape of leaf |
wedged- |
|
| |
|
shaped |
|
| 49 |
Texture of leaf |
medium to |
|
| |
(top surface) |
strong |
|
| |
|
blistering |
|
| 50 |
Texture of leaf |
rough |
|
| |
(bottom surface) |
|
|
| 51 |
Vein color |
yellow- |
145C (RHS) |
| 52 |
Average length |
green |
121 |
mm |
| |
of petiole |
|
|
|
| 53 |
Average diameter |
|
3.9 |
mm |
| |
of petiole |
|
|
|
| 54 |
Color of petiole |
yellow- |
145B(RHS), |
| |
|
green and |
183D(RHS) |
| |
|
greyed- |
|
| |
|
purple |
|
| 55 |
Size of blade |
Small to |
267 |
cm2 |
| |
|
medium |
|
|
| 56 |
Shape of blade |
wedged- |
|
|
| |
|
shaped |
|
|
| 57 |
Blistering of upper |
medium to |
|
|
| |
side of blade |
strong |
|
|
| 58 |
Number of lobes |
five |
|
|
| 59 |
Depth of upper |
shallow |
3.4 |
cm |
| |
lateral sinuses |
|
|
|
| 60 |
Arrangement of |
open |
|
|
| |
lobes of upper |
|
|
|
| |
lateral sinuses |
|
|
|
| 61 |
Arrangement of |
slightly |
|
|
| |
lobes of petiole |
open |
|
|
| |
sinus |
|
|
|
| 62 |
Length of teeth |
medium |
4.8 |
mm |
| 63 |
Ratio length/ |
small |
0.56 |
| |
width of teeth |
|
|
| 64 |
Shape of teeth |
mixture of |
|
| |
|
both sides |
|
| |
|
straight and |
|
| |
|
both sides |
|
| |
|
convex |
|
| 65 |
Proportion of |
absent or |
|
| |
main veins on |
very low |
|
| |
upper side of blade |
|
|
| |
with anthocyanin |
|
|
| |
coloration |
|
|
| 66 |
Prostrate hairs |
dense |
|
| |
between main veins |
|
|
| |
on lower side of |
|
|
| |
blade |
|
|
| 67 |
Erect hairs on main |
absent or |
|
| |
veins on lower side |
very sparse |
|
| 68 |
Length of petiole |
much |
0.55 |
| |
compared to length |
shorter |
|
| |
of middle vein |
|
|
| |
Fruit ripening |
|
|
| 69 |
Date of first pick in |
approx. |
|
| |
specific location |
Sep. 5 |
|
| 70 |
Date of last pick in |
approx. |
|
| |
specific location |
Sep. 20 |
|
| 71 |
Time of beginning |
medium |
early August |
| |
of berry ripening |
to late |
(approx. |
| |
|
|
Aug. 5) |
| 72 |
Pounds per bushels |
|
About 890 |
| |
per acre |
|
pounds/acre |
| 73 |
Storability of fruit |
12 days |
|
| |
Bunch |
|
|
| 74 |
Average bunches |
|
5 |
| |
per plant |
|
|
| 75 |
Average length of |
large |
183 |
mm |
| |
bunch |
|
|
|
| 76 |
Average width of |
|
72 |
mm |
| |
bunch |
|
|
|
| 77 |
Average weight of |
|
222.2 |
g |
| |
bunch |
|
|
| 78 |
Average number of |
|
27.2 |
| |
grapes per bunch |
|
|
| 79 |
Average length of |
medium |
58 |
mm |
| |
peduncle |
|
|
|
| 80 |
Average diameter |
|
3.2 |
mm |
| |
of peduncle |
|
|
|
| 81 |
Average color of |
light red |
144A, |
| |
peduncle |
|
184D (RHS) |
| 82 |
Size (peduncle |
large |
183 |
mm |
| |
excluded) |
|
|
|
| 83 |
Density |
medium |
|
|
| 84 |
Length of peduncle |
medium |
58 |
mm |
| |
primary bunch |
|
|
|
| 85 |
Color of peduncle |
light red |
144A, 184D |
| |
|
|
(RHS) |
| |
Berry |
|
|
| 86 |
Average size of |
|
Width 24.8 mm, |
| |
berry |
|
Length 26.0 mm |
| 87 |
Color of berry skin |
red |
187B (RHS) |
| 88 |
Color of berry flesh |
|
144D (RHS) |
| 90 |
Shape |
broad |
|
| |
|
ellipsoid |
|
| 91 |
Color of skin (with- |
red |
187B (RHS) |
| |
out bloom) |
|
|
| 92 |
Bloom |
many |
|
| 93 |
Ease of detachment |
medium |
|
| |
from pedicel |
|
|
| 94 |
Thickness of skin |
thin to |
|
| |
|
medium |
|
| 95 |
separation of skin |
difficult |
|
| |
and flesh |
|
|
| 96 |
Anthocyanin color- |
absent or |
|
| |
ation of flesh |
very weak |
|
| 97 |
Firmness of flesh |
medium |
|
| 98 |
Character of flesh |
collapse |
|
| 99 |
Sweetness of flesh |
high |
20.7% |
| |
juice |
|
|
| 100 |
Juiciness of flesh |
very juicy |
|
| 101 |
Particular flavor |
Muscat |
|
| 102 |
Formation of seeds |
complete |
|
| |
Woody shoot |
|
|
| 103 |
Main color |
orange |
177B (RHS) |
| |
|
brown |
|
| |
Ecotype |
|
|
| 104 |
Flower shatter |
medium |
| |
- Other features of the plant are as follows:
-
- Disease resistance.—Normal resistance was observed for pests and diseases in Akitsu, Hiroshima, Japan. Fungicide treatment was considered necessary against the following diseases: Peronospora (Plasmopara), Oidium, Botrytis.