USPP35013P2 - Gentian plant named ‘Ashiro 29-2075’ - Google Patents

Gentian plant named ‘Ashiro 29-2075’ Download PDF

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Publication number
USPP35013P2
USPP35013P2 US17/556,670 US202117556670V USPP35013P2 US PP35013 P2 USPP35013 P2 US PP35013P2 US 202117556670 V US202117556670 V US 202117556670V US PP35013 P2 USPP35013 P2 US PP35013P2
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ashiro
variety
color
plant
lobes
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US17/556,670
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Ryo Takahashi
Yutaro Takamura
Rina SUZUKI
Takashi Hikage
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Hachimantai City
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Hachimantai City
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  • Botanical classification Gentiana L. hybrid.
  • the present invention relates to a new and distinct variety of Japanese gentian, Gentiana L., which has been given the variety denomination ‘Ashiro 29-2075’.
  • This new gentian is a double flower type and has a diameter at the top of the corolla of 30.6 mm. It is adapted for use as cut flowers or pot flowers.
  • the variety resulted from a multiple-step cross-breeding program starting from a group of unpatented varieties.
  • the ancestor varieties were unpatented strains owned by the applicant, having the company-internal names: ‘17INP’ which belongs to the species Gentiana triflora , and ‘25-322-R1’, ‘26-904’, ‘12-320-1’, ‘14-526-2’, ‘11-24-1’, ‘11-192-1’, ‘13SH’, ‘10-76’, ‘6-62’, ‘12-186-1’, ‘12-212-1’, and ‘25-817’, which belong to the species Gentiana scabra . Group crosses and/or self-crosses with a single individual were performed.
  • the program had seven steps, as shown in the map of FIG. 6 , which also indicates the company-internal names of the intermediary, unpatented strains. At each step, the individuals with good plant and flower shape were selected. The corresponding species identification is ((( scabra x ( scabra x triflora )) x scabra ))) x (( scabra x ( scabra x triflora )).
  • the multiple-step cross-breeding program was performed over multiple growing seasons up to 2018; in October 2018, selection of the variety was performed.
  • the variety can be propagated by cutting (optimal timing is mid-February) and/or tissue culturing via lateral bud culture.
  • Cultivation of the variety does not require particular conditions.
  • Maintenance and storage method of the plant material can be by tissue culture via lateral bud culture.
  • the variety is adapted for use as cut flowers or pot flowers.
  • the variety is distinguished by double flower type and has a diameter at the top of the corolla of 30.6 mm, as compared to ‘Shine Blue Ashiro’ variety which is single flower type and has a diameter at the top of the corolla of 25.0 mm. ‘Shine Blue Ashiro’ is unpatented.
  • Additional distinguishing characteristics of the ‘Ashiro 29-2075’ plant are the six-seven (6.6 on average) lobes of the paracorolla, and the strong blue color (N95B on R.H.S. colour chart) of the secondary lobes with acute apex in-between the main lobes of the corolla
  • FIG. 1 is a color photograph showing the ‘Ashiro 29-2075’ plant as grown in a culturing bed;
  • FIG. 2 is a color photograph showing flowers of the ‘Ashiro 29-2075’ plant
  • FIG. 3 is a color photograph showing flowering stages of flowers of the ‘Ashiro 29-2075’ plant
  • FIG. 4 is a color photograph showing petals of flowers of the ‘Ashiro 29-2075’ plant
  • FIG. 5 is another color photograph showing flowers of the ‘Ashiro 29-2075’ plant.
  • FIG. 6 is a map showing the steps of the cross-breeding program from which the variety was obtained.
  • the plants or portions of plants depicted in the photographs may or may not be precisely accurate, when compared to the actual botanical specimens.

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  • Cultivation Of Plants (AREA)

Abstract

A new variety of Gentiana L. plant (Japanese gentian) which is a double flower type and has a diameter at the top of the corolla of 30.6 mm.

Description

Common name: Japanese gentian.
Botanical classification: Gentiana L. hybrid.
Variety denomination: ‘Ashiro 29-2075’.
BACKGROUND OF THE NEW VARIETY
The present invention relates to a new and distinct variety of Japanese gentian, Gentiana L., which has been given the variety denomination ‘Ashiro 29-2075’.
This new gentian is a double flower type and has a diameter at the top of the corolla of 30.6 mm. It is adapted for use as cut flowers or pot flowers.
ORIGIN OF THE VARIETY
The variety resulted from a multiple-step cross-breeding program starting from a group of unpatented varieties. The ancestor varieties were unpatented strains owned by the applicant, having the company-internal names: ‘17INP’ which belongs to the species Gentiana triflora, and ‘25-322-R1’, ‘26-904’, ‘12-320-1’, ‘14-526-2’, ‘11-24-1’, ‘11-192-1’, ‘13SH’, ‘10-76’, ‘6-62’, ‘12-186-1’, ‘12-212-1’, and ‘25-817’, which belong to the species Gentiana scabra. Group crosses and/or self-crosses with a single individual were performed. The program had seven steps, as shown in the map of FIG. 6 , which also indicates the company-internal names of the intermediary, unpatented strains. At each step, the individuals with good plant and flower shape were selected. The corresponding species identification is (((scabra x (scabra x triflora)) x scabra))) x ((scabra x (scabra x triflora)).
The multiple-step cross-breeding program was performed over multiple growing seasons up to 2018; in October 2018, selection of the variety was performed. We asexually reproduced the variety by vegetative reproduction through cuttings, tissue culturing via lateral bud culture, and in October 2020, the new variety was found to be stable and asexually reproduced true to type in successive generations.
The variety was developed and propagated in Iwate, Japan.
The variety can be propagated by cutting (optimal timing is mid-February) and/or tissue culturing via lateral bud culture.
Cultivation of the variety does not require particular conditions. Maintenance and storage method of the plant material can be by tissue culture via lateral bud culture.
The variety is adapted for use as cut flowers or pot flowers.
SUMMARY OF THE VARIETY
The variety is distinguished by double flower type and has a diameter at the top of the corolla of 30.6 mm, as compared to ‘Shine Blue Ashiro’ variety which is single flower type and has a diameter at the top of the corolla of 25.0 mm. ‘Shine Blue Ashiro’ is unpatented.
A comparison with ‘Shine Blue Ashiro’ variety is presented as follows in Table 1:
TABLE 1
‘Shine Blue Ashiro’ ‘Ashiro 29-2075’
Flower type Single double
Diameter at top of corolla 25.0 mm 30.6 mm
Additional distinguishing characteristics of the ‘Ashiro 29-2075’ plant are the six-seven (6.6 on average) lobes of the paracorolla, and the strong blue color (N95B on R.H.S. colour chart) of the secondary lobes with acute apex in-between the main lobes of the corolla
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 the ‘Ashiro 29-2075’ plant as grown in a culturing bed;
FIG. 2 is a color photograph showing flowers of the ‘Ashiro 29-2075’ plant;
FIG. 3 is a color photograph showing flowering stages of flowers of the ‘Ashiro 29-2075’ plant;
FIG. 4 is a color photograph showing petals of flowers of the ‘Ashiro 29-2075’ plant;
FIG. 5 is another color photograph showing flowers of the ‘Ashiro 29-2075’ plant;
FIG. 6 is a map showing the steps of the cross-breeding program from which the variety was obtained.
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 plants in the botanical description below and shown in the Figures were grown in Iwate, Japan. The plants were collected in October 2020 at age 16 months.
Colors are given according to The 2015 R.H.S. Colour Chart.
BOTANICAL DESCRIPTION
TABLE 2
Stem Length: 81.9 cm
Stem shape in cross-section: circular
Thickness (main flowering 3.4 mm
stem):
Number of flowering stems 12.7
per plant (average):
Texture: smooth
Color: strong yellow green (145A
on RHS Colour Chart)
Anthocyanin coloration at two present
thirds from base:
Number of internodes longer 21.2
than 5 mm (average):
Length of internode in central 4.3 cm
third:
Side shoots: present
Number of side shoots with 0.2
only one node (average):
Number of side shoots with 8.9
more than one node
(average):
Position of longest leaf: in lower third
Leaf Length: 6.4 cm
Leaf arrangement: opposite leaf arrangement
Leaf attachment: sessile
Leaf apex: acuminate
Leaf margin: entire
Leaf base: rounded
Leaf texture (inner side): smooth
Leaf texture (outer side): smooth
Leaf color (inner side): moderate olive green
(137A on RHS Colour
Chart)
Leaf color (outer side): moderate yellow green
(138C on RHS Colour
Chart)
Leaf venation pattern: parallel venation (three
lines)
Width: 2.2 cm
Shape: broad lanceolate
Shape in cross section: folded upwards
Shape in longitudinal straight
section:
Twisting: present
Number of conspicuous 3
veins:
Anthocyanin coloration: absent
Inflorescence Distribution of flowers: clustered
Position of flowers: terminal and axillary
Plant: Number of terminal flowers 5.1
(average):
Typical plant height: about 81.9 cm (cut flower
or potted plant)
Typical growth habit: erect
Plant spread (average): 69.6 cm
Sequence of flowering: from top downwards
Number of flowers per top: 5.1
inflorescence: others: 2.0
Sequence of flowering: from top downwards
Number of flowers at central 2.0
flowering node (average):
Number of flowering node: 7.1
Flower bud Shape of bud: oval
(about 4
days before
flowering)
Length of bud (average): 40.96 mm
Diameter of bud (average): 13.36 mm
Color of bud: dark purple (83A on
RHS Colour Chart)
Flower Type: double
Time of flowering: late October
Flower longevity (potted 17 days
plant):
Flower longevity (cut flower): 8 days
Corolla Depth: 42.8 mm
Diameter at middle third: 17.8 mm
Shape: campanulate
Diameter at top: 30.6 mm
Curvature of lobes: reflexed
Color of inner side of lobes: moderate blue (N95C on
RHS Colour Chart)
Tube length (average): 26.1 mm
Color of upper part of inner light purplish blue (N95D
side of tube: on RHS Colour Chart)
Color of upper part of outer dark purple (83A on RHS
side of tube: Colour Chart)
Streaked pattern on outer present
side of tube:
Color of streaked pattern on purplish-brown
outer side of tube:
Density of spots on the inner very sparse
side of the corolla lobes:
Density of spots on the upper sparse
part of the inner side of the
corolla tube:
Density of spots on the absent
outer side of the corolla tube:
Number of lobes: 6.6
Length of lobes: 7.8 mm
Width of lobes: 10.8 mm
Shape of lobes: broad triangular
Shape of distal end of lobes: acute
Presence of secondary lobes: present
Average number of secondary 6.6
lobes per flower:
Shape of secondary lobe acute
apex:
Color of secondary lobes strong blue (N95B on
RHS Colour Chart) for
both surfaces
Paracorolla Presence of paracorolla: present
Number of paracorolla lobes 6.6
(average):
Paracolla apex shape: acute
Calyx Anthocyanin coloration: present
Length of tube: 12.7 mm
Diameter of tube: 6.9 mm
Shape of tube: funnel-shaped
Shape of lobe: narrow lanceolate
Sepal Sepal number: 6
Sepal lobe shape: narrow lanceolate
Sepal apex: acute
Sepal color (inner side): dark yellowish green
(136B on the RHS Colour
Chart)
Sepal color (outer side): strong yellow green
(143C on the RHS Colour
Chart)
Reproductive Stamens and anther: stamens are mutated into
organs petals and there is no
anther
Time of flowering: late October
Pistil number: 1
Pistil length (average): 32.3 mm
Anther shape: narrow oval
Anther color: light yellow green (145C
on RHS Colour Chart)
In the above chart, specific numbers correspond to average values.
  • Other features of the plant are as follows:
      • Disease resistance.—Normal resistance was observed for pests and diseases in Iwate, Japan, using pest control by chemical spraying for gentian.
      • Cold hardiness.—Strong, the variety can withstand winter in Iwate, Japan, including low temperatures of about −10° C. with abundant snow.
      • Heat tolerance.—Normal, the variety can withstand summer in Iwate, Japan, including high temperatures of about 35° C.
      • Flower fragrance.—Absent.

Claims (1)

We claim:
1. A new and distinct variety of Gentiana plant named ‘Ashiro 29-2075’, substantially as described and illustrated herein.
US17/556,670 2021-12-20 2021-12-20 Gentian plant named ‘Ashiro 29-2075’ Active USPP35013P2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17/556,670 USPP35013P2 (en) 2021-12-20 2021-12-20 Gentian plant named ‘Ashiro 29-2075’

Publications (1)

Publication Number Publication Date
USPP35013P2 true USPP35013P2 (en) 2023-02-28

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