U.S. patent number PP26,763 [Application Number 14/121,395] was granted by the patent office on 2016-05-31 for flowering currant plant named `oregon snowflake`.
This patent grant is currently assigned to Oregon State University. The grantee listed for this patent is Oregon State University. Invention is credited to Ryan N. Contreras, Mara Wynne Friddle.
United States Patent |
PP26,763 |
Contreras , et al. |
May 31, 2016 |
Flowering currant plant named `Oregon Snowflake`
Abstract
A new cultivar of Ribes sanguineum, `Oregon Snowflake`,
characterized by its compact and densely branched growth habit and
highly dissected leaves.
Inventors: |
Contreras; Ryan N. (Corvallis,
OR), Friddle; Mara Wynne (Corvallis, OR) |
Applicant: |
Name |
City |
State |
Country |
Type |
Oregon State University |
Corvallis |
OR |
US |
|
|
Assignee: |
Oregon State University
(Corvallis, OR)
|
Appl.
No.: |
14/121,395 |
Filed: |
August 29, 2014 |
Prior Publication Data
|
|
|
|
Document
Identifier |
Publication Date |
|
US 20160066486 P1 |
Mar 3, 2016 |
|
Current U.S.
Class: |
PLT/156 |
Current International
Class: |
A01H
5/02 (20060101) |
Field of
Search: |
;PLT/156 |
Other References
Kim et al. EMS mutagenesis of Arabidopsis Methods in Molecular
Biology vol. 323 Second edition 2006. cited by examiner .
http://www.oregonlive.com/hg/index.ssf/2014/05/new.sub.--oregon.sub.--snow-
flake.sub.--shrub.sub.--is.html. cited by examiner.
|
Primary Examiner: Para; Annette
Attorney, Agent or Firm: Klarquist Sparkman, LLP
Claims
It is claimed:
1. A new and distinct cultivar of flowering currant plant named
`Oregon Snowflake` as herein illustrated and described.
Description
Botanical classification: Ribes sanguineum.
Cultivar designation: `Oregon Snowflake`.
BACKGROUND OF THE INVENTION
The present invention relates to a new and distinct cultivar of
Ribes sanguineum named `Oregon Snowflake` and is hereinafter
referred to by the cultivar name `Oregon Snowflake`. `Oregon
Snowflake` represents a new cultivar of flowering currant
characterized by its compact and densely branched growth habit and
highly dissected leaves.
This new cultivar of flowering currant was developed by the Oregon
State University Breeding Program (Corvallis, Oreg.). `Oregon
Snowflake` was selected by the Inventors in 2011 as accession
OSU-11-0020-48-0-052 from a population of plants that were part of
a mutation breeding program designed to induce variation in
morphology. From a population of approximately 300 surviving plants
grown in a greenhouse, `Oregon Snowflake` was selected based on
uniqueness and highly dissected leaf morphology. Rooted cutting
(clones) were grown and plants were planted in a replicated,
non-randomized trial as plants 13-01 (mother plant), 13-02, 13-03,
13-04, 13-05, and 13-06 in 2012 at the Lewis-Brown Horticultural
Research Farm in Corvallis, Oreg. Plants have been repeatedly
propagated via stem cuttings and it roots readily from terminal
softwood cuttings treated with a basal dip of 1,000 ppm aqueous
solution of indole butyric acid potassium salt. We have observed at
least 80% rooting percentage of terminal cuttings but approximately
45% of non-terminal lateral stem cuttings.
`Oregon Snowflake` has been observed to retain its characteristics
through multiple years of container (4 years), and field growing (3
years), as well as successive asexual propagations via stem
cuttings under the direction of the Inventors at the Lewis-Brown
Horticultural Research Farm in Corvallis, Oreg. Asexual
reproduction of the new cultivar has shown that the unique features
are stable and reproduced true to type in successive generations.
An herbarium voucher was prepared and deposited into the Oregon
State University Herbarium and is cataloged as accession
OSC-240116.
SUMMARY OF THE INVENTION
The following traits have been repeatedly observed and represent
the characteristics of the new cultivar. These attributes in
combination distinguish `Oregon Snowflake` as a new and unique
cultivar of Ribes sanguineum.
1. `Oregon Snowflake` exhibits highly dissected leaves.
2. `Oregon Snowflake` exhibits compact, rounded habit with dense
branching.
Table 1 shows the differences between `Oregon Snowflake` and
commercial variety `White Icicle` (unpatented). We selected `White
Icicle` for comparison because it is the most commonly grown white
flowering selection in the nursery trade. FIG. 1 also shows the
differences in leaf size and shape between `Oregon Snowflake` and
`White Icicle`. As shown in Table 1 and FIG. 1, `Oregon Snowflake`
is distinguished from `White Icicle` based on increased dissection
and differently shaped leaves as well as a more compact and rounded
growth habit, which is wider than tall in `Oregon Snowflake`, as
opposed to the more upright `White Icicle`.
TABLE-US-00001 TABLE 1 Comparison of `Oregon Snowflake` to `White
Icicle`, a commercial variety. Variety Trait `Oregon Snowflake`
`White Icicle` Mature height.sup.1 121 cm 154 cm Mature width 133
cm 115 cm Growth habit Densely branched, semi-dwarf; Upright,
ascending branches; few low, mounded shape lateral branches Leaf
shape Palmatifid with 5 lobes, deep Rounded lobes (5) with sinuses;
lobes serrate-incised shallow sinuses; crenate-serrate Leaf length
with 92.8 mm 53.3 mm petiole Leaf blade length 50.6 mm 36.7 mm Leaf
width 52.6 mm 53.4 mm .sup.1Oregon Snowflake` measurement collected
on Mar. 20, 2014 from original plant that was planted in spring
2012 as a #3 container grown plant. `White Icicle` measurement
collected on Mar. 20, 2014 from a plant that was planted spring
2013 as a #3 container grown plant. Ultimate height of `White
Icicle` likely underestimated by this measurement.
Table 2 shows the height differences between `Oregon Snowflake` and
other plants grown from the same seed treated with no EMS or 0.2%
EMS, as well as other flowering currant plants. As shown in Table 2
and FIGS. 2-3, `Oregon Snowflake` can be distinguished from other
flowering currant plants based on its shorter height.
TABLE-US-00002 TABLE 2 Comparison of mean plant height of
populations of plants treated with varying EMS rates and durations
with `Oregon Snowflake` and four industry standard cultivars. EMS
rate Treatment Mean height Cultivar (%) duration (cm) 0.sup.z 24
183.8 .+-. 6.4 0.sup.z 48 186.4 .+-. 7.6 0.2 24 184.6 .+-. 2.3 0.2
48 159 .+-. 19.6 `Oregon Snowflake` 112.3 .+-. 9 `King Edward VII`
216.7 .+-. 4.4 `Pokey's Pink` 176.7 .+-. 14.8 `Pulborough Scarlet`
205.7 .+-. 14.5 `White Icicle` 213.3 .+-. 9 .sup.zControl plants
receiving no EMS.
BRIEF DESCRIPTION OF THE PHOTOGRAPHS
The accompanying colored photographs illustrate the overall
appearance and distinct characteristics of the new Ribes
cultivar.
The photograph in FIG. 1 provides a leaf comparison of `White
Icicle` (right column) and `Oregon Snowflake` (left column).
Immature leaves are shown on the upper panels, mature leaves are
shown on the lower panels (Scale=1 cm).
The photograph in FIG. 2 provides a close-up view of the `Oregon
Snowflake` cultivar during winter with its characteristic dense
branching. The photo show the mother plant in the foreground with
five (5) replicates planted thereafter, demonstrating growth habit
consistency in plants propagated asexually from stem cuttings.
These plants were approximately 2.5 years old at the time the
photographs were taken and are located at the Lewis-Brown
Horticulture Research Farm at 33329 Peoria Rd. Corvallis, Oreg.
97333.
The photograph in FIG. 3 provides a close-up view of `Oregon
Snowflake` in full flower.
DETAILED BOTANICAL DESCRIPTION OF THE PLANT
The following detailed description sets forth the distinctive
characteristics of `Oregon Snowflake`. The detailed description was
taken from plants that had been growing for two years at the
Lewis-Brown Horticultural Research Farm, Corvallis, Oreg. The
phenotype of the new cultivar may vary with variations in
environmental, climatic, and cultural conditions, as it has not
been tested under all possible environmental conditions. The color
determination is in accordance with The 2007 R.H.S. Colour Chart of
The Royal Horticultural Society, London, England, except where
general color terms of ordinary dictionary significance are
used.
Parentage: Seed (non-patented) purchased from Seven Oaks Native
Nursery, Albany, Oreg. was treated with ethylmethane sulfonate
(EMS). Lots of 500 seed were immersed in 50 mL each of 0, 0.2, 0.4,
0.8, and 1.2% EMS in a 0.1 M sodium phosphate buffer. There were
three replicates of each treatment and 24- and 48-h durations of
each treatment. All seed were then triple-rinsed for 15 minutes in
Millipore water and put into cold stratification at 36-38.degree.
F. for 6 weeks. Seed were sown on a 1:1 mix of Sunshine potting mix
SB40 (Sun Gro Horticulture, Belvue, Wash.) and douglas-fir bark
mulch in 10''.times.20'' flats. General description: Plant
type.--Deciduous shrub. Plant habit.--Compact, rounded, and densely
branched. Semi-dwarf. Height and spread.--Average height of 1.21 m
and average width of 1.33 at maturity. Cold hardiness.--USDA Zone
(5)6. Disease and pests.--Comparable to `White Icicle`.
Culture.--Plants prefer moist, well-drained soil in full sun or
partial shade. Tolerates moderate drought. Propagation.--Roots
easily from terminal stem cuttings treated with auxin and placed
under intermittent mist. Growth rate.--4 to 5 feet in three years
with an average height of just under 4 feet (1.21 m). Stem
description: Stem.--Appears glabrous but under magnification is
sparsely tomentulose. One (1) -year old stems are 164A in color on
lower portion of stem growth, 167B in color in the middle of stem
growth, and 174A in color on the upper, newer portion of stem
growth. Internodes.--Mean length 1.1 cm. Foliage description: Leaf
shape.--Palmatifid with five lobes and very deep sinuses; lobes
serrate-incised. Leaf division.--Simple leaves. Leaf
base.--Cordate. Leaf apex.--Serrate-incised lobes. Leaf
venation.--Impressed adaxially. Leaf margins.--Serrate-incised with
glandular hairs. Leaf attachment.--Petiolate. Leaf
arrangement.--Alternate. Leaf surface (mature).--Sparsely
velutinous with surface glands; glandular hairs marginally. Leaf
surface (immature).--Plicate, adaxially velutinous with glandular
hairs marginally; abaxially velutinous and glandular mixture of
hairs. Leaf color (mature).--Adaxial surface is 137B in color;
abaxial surface is 139C in color. Leaf color (immature).--Adaxial
surface is 137B in color; abaxial surface is 137D in color. Leaf
size (mature).--Length including petiole=92.8 mm; blade length=50.6
mm; width=52.6 mm. Petioles.--Involute in shape (ridge on adaxial
surface), an average of 26 mm in length and 1.1 mm in width,
surface is velutinous with sparse glandular hairs.
Stipules.--Generally reduced to adnate sheath at the base of the
petiole. Inflorescence description: Type.--Raceme.
Habit.--Pendulous. Bloom season.--Spring, mid-March to mid-April in
Corvallis, Oreg. Pedicels.--8.66 mm. Peduncles.--38.6 mm. Number of
flowers per inflorescence.--Thirty nine (39). Fragrance.--No floral
fragrance but entire plant has spicy fragrance typical of the
species. Length at anthesis.--102.8 mm. Self cleaning or
persistent.--Semi-self cleaning. Flower buds.--Glabrous with
glandular hairs marginally; falcate with four scales oppositely
arranged; length is 13.1 mm. Flowers.--Tubular; outer is 157D in
color and pedicel to tip is 19.7 mm. Perianth.--Length=9.4 mm;
Width=13.7 mm. Sepals.--Five (5) sepals fused; calyx tube=5.9 mm;
calyx lobes=7.1 mm. Petals.--Reduced petals, five (5), fused to
interior calyx wall; minute; 157D in color. Fruit.--Bluish-black
with glaucous, waxy bloom. Bracts.--Single Bracteole, persistent;
glandular with sparse velutinous pubescence; 145B in color.
Reproductive organs: Stamen.--Five (5) per flower; 3.7 mm in
length. Pistil.--One (1) per flower with two (2) to three (3)
stigmas; 6.9 mm in length. Ovary.--Inferior; 149A in color.
* * * * *
References