USPP31741P3 - Floribunda rose plant named ‘GRAzest’ - Google PatentsFloribunda rose plant named ‘GRAzest’ Download PDF
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- USPP31741P3 USPP31741P3 US16/350,974 US201916350974V USPP31741P3 US PP31741 P3 USPP31741 P3 US PP31741P3 US 201916350974 V US201916350974 V US 201916350974V US PP31741 P3 USPP31741 P3 US PP31741P3
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- 241000196324 Embryophyta Species 0.000 title description 13
- 235000010295 hybrid musk rose Nutrition 0.000 title description 12
- 240000003962 Rosa hybrid cultivar Species 0.000 claims abstract description 13
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 abstract description 3
- 235000010208 anthocyanin Nutrition 0.000 description 7
- 150000004636 anthocyanins Chemical class 0.000 description 7
- 229930002877 anthocyanins Natural products 0.000 description 7
- 230000001488 breeding Effects 0.000 description 5
- 210000004907 Glands Anatomy 0.000 description 4
- 280000332430 Ovate companies 0.000 description 4
- 210000001624 Hip Anatomy 0.000 description 3
- 241000220317 Rosa Species 0.000 description 3
- 241001164374 Calyx Species 0.000 description 2
- 241001133184 Colletotrichum agaves Species 0.000 description 2
- 241001573881 Corolla Species 0.000 description 2
- 210000004209 Hair Anatomy 0.000 description 2
- 206010027146 Melanoderma Diseases 0.000 description 2
- 239000003205 fragrance Substances 0.000 description 2
- 230000000366 juvenile Effects 0.000 description 2
- 239000002932 luster Substances 0.000 description 2
- 238000000034 methods Methods 0.000 description 2
- 239000011122 softwood Substances 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 241000223782 Ciliophora Species 0.000 description 1
- 235000005979 Citrus limon Nutrition 0.000 description 1
- 240000002268 Citrus limon Species 0.000 description 1
- 241000663351 Diplocarpon rosae Species 0.000 description 1
- 241000221785 Erysiphales Species 0.000 description 1
- 240000001140 Mimosa pudica Species 0.000 description 1
- 210000001672 Ovary Anatomy 0.000 description 1
- 241000896203 Podosphaera pannosa Species 0.000 description 1
- 235000011449 Rosa Nutrition 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000011681 asexual reproduction Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003086 colorants Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 201000010099 diseases Diseases 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000005259 measurements Methods 0.000 description 1
- 210000000056 organs Anatomy 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 230000001850 reproductive Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
- 230000000153 supplemental Effects 0.000 description 1
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01H—NEW PLANTS OR PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
- A01H6/00—Angiosperms, i.e. flowering plants, characterised by their botanic taxonomy
- A01H6/74—Rosaceae, e.g. strawberry, apple, almonds, pear, rose, blackberries or raspberries
- A01H6/749—Rosa, i.e. roses
Latin name of genus and species: The Latin name of the genus and species of the novel variety disclosed herein is Rosa hybrid.
Variety denomination: The inventive variety of Rosa hybrid disclosed herein has been given the variety denomination ‘GRAzest’.
Parentage: ‘GRAzest’ is a seedling selection which resulted from the controlled cross-pollination of an unnamed Rosa hybrid female breeding line (not patented) and an unnamed Rosa hybrid male breeding line (not patented). Both parents, developed by the same inventor and never commercially released, exhibited traits deemed commercially significant and desirable.
After many years of trialing, the female parent was confirmed to possess a combination of desirable traits such as very strong fragrance and having flower color white, borne on a bushy plant growing to 1.2 m tall and wide. The male parent was selected for use in breeding after trialing confirmed the presence of a modern flower color. During the spring of 2014, the female parent was emasculated and was manually pollinated with pollen from the male parent. In autumn of 2015, seed was collected from hips produced by the female parent and a number of seedlings were grown to a mature size, including the claimed plant. These progeny were further evaluated for desirable traits such as black spot disease resistance and original flower color, and in January of 2016 the claimed plant was first observed. In January of 2017, after further evaluation for desirable traits, the claimed plant was deemed to be garden-worthy and suited to widespread cultivation. It was given the denomination ‘GRAzest’.
Asexual Reproduction: Asexual propagation of ‘GRAzest’, by way of softwood stem cuttings, was first performed in May of 2016 at the inventor's nursery in Highfields, Australia. Through more than twelve subsequent generations, the unique features of this cultivar have proven to be stable and true to type.
The following characteristics have been repeatedly observed and represent the distinguishing characteristics of the new Rosa cultivar ‘GRAzest’. These traits, in combination, distinguish ‘GRAzest’ as a new and distinct cultivar.
- 1. Rosa hybrid ‘GRAzest’ exhibits an upright to semi-weeping growth habit; and
- 2. Rosa hybrid ‘GRAzest’ flowers exhibit a distinct strong, bright, true red with significant velvet overlay; and
- 3. Rosa hybrid ‘GRAzest’ exhibits nearly continuous flowering; and
- 4. Rosa hybrid ‘GRAzest’ exhibits a semi-double flower type; and
- 5. Rosa hybrid ‘GRAzest’ exhibits red new leaves and stems.
The following observations and measurements, made in January of 2018, describe averages of two own-root specimens of one year old ‘GRAzest’ plants. The plants were grown outdoors in a garden bed of a red krasnozem soil in full sunlight, at the inventor's nursery in Highfields, Australia. No shade or supplemental light was provided. Temperatures ranged from approximately 17 to 35 degrees Celsius during the day and 7 to 18 degrees Celsius at night. Standard practices for irrigation, fertilizer and pest control were applied at appropriate times during the growing season. The plants were pruned three times during the growing season using accepted techniques for rose pruning.
Those skilled in the art will appreciate that certain characteristics will vary with older or, conversely, with younger plants. ‘GRAzest’ has not been observed under all possible environmental conditions. Where dimensions, sizes, colors and other characteristics are given, it is to be understood that such characteristics are approximations or averages set forth as accurately as practicable. The phenotype of the variety may differ from the descriptions set forth herein with variations in environmental, climatic and cultural conditions. Color notations are based on The Royal Horticultural Society Colour Chart, The Royal Horticultural Society, London, 2007 Fifth Edition except where common terms of color are used.
A botanical description of ‘GRAzest’ and comparisons with the parents and the most similar commercial cultivar of Rosa hybrid are provided below.
- General plant description:
- Growth habit.—Upright to semi-weeping.
- Growth rate.—Approximately 6 months to reach 60 cm.
- Dimensions.—60 cm tall and 50 cm wide.
- Environmental tolerance.—Very good heat tolerance; cold hardiness is unknown.
- Disease resistance.—Excellent resistance to powdery mildew (Sphaerotheca pannosa) and excellent resistance blackspot (Diplocarpon rosae).
- Propagation.—Technique — Softwood stem cuttings. Time to initiate roots — About 13 days at approximately 21 degrees Celsius at root zone and 18 degrees Celsius ambient temperature. Time to produce a rooted cutting — About 25 days at approximately 21 degrees Celsius at root zone and 18 degrees Celsius ambient temperature.
- Root system: White fibrous roots with many root hairs extending from lesser roots in a featherlike arrangement.
- Branching habit.—Irregular branching from mature branches, breaking first from the uppermost buds near the apex of each shoot.
- General dimensions.—Approximately 70 cm long; 1.0 cm in diameter near the base and tapering to 0.4 cm.
- Immature branches.—Diameter — Approximately 0.5 cm. Texture and pubescence — Glabrous, with prickles. Color — Near RHS 142D with anthocyanin present. Prickles — Density — Sparse to moderate. Color — Near RHS 45D. Shape — Convex. Texture — Smooth.
- Mature branches.—Diameter — Approximately 1.0 cm, after one year. Texture and pubescence — Glabrous, with prickles. Color — Near RHS 143D. Prickles — Density — Sparse to moderate. Color — Near RHS 153D. Shape — Convex. Texture — Smooth.
- Arrangement.—Alternate imparipinnate compound leaves.
- Quantity.—Approximately 7 per mature branch.
- Leaf internode length.—4 cm.
- Dimensions.—Approximately 9 cm long and 7 cm wide.
- Petiole.—Dimensions — 1.7 cm long and 0.1 cm wide. Color — Near RHS 145A and margined RHS 144B. Texture and pubescence — Smooth and a glabrous. Prickles — Present. Stipitate glands — not present.
- Stipule.—Dimensions — 1.0 cm long and 0.4 cm wide. Color — Near RHS 144B. Texture and pubescence — Smooth and glabrous. Margins — Ciliate. Apex — Apiculate. Base — Winged. Prickles — Not present. Stipitate glands — Not present.
- Rachis.—Dimensions — 1.0 cm long and 0.1 cm wide. Color — Near RHS N147C. Prickles — Present. Stipitate glands — Not present.
- Leaflets.—Quantity — Seven leaflets on axillary leaves. Dimensions — Average size of the terminal leaflet is 4 cm long and 2.4 cm wide. Shape — Ovate. Apex — Acuminate. Base — Ovate. Margins — Serrated. Texture, pubescence and luster, adaxial surface — Smooth, glabrous, and semi-glossy. Texture, pubescence and luster, abaxial surface — Smooth, glabrous, and matte. Juvenile foliage color, adaxial surface — Near RHS 148A, with anthocyanin intonations. Juvenile foliage color, abaxial surface — Near RHS 46A, with anthocyanin intonations. Mature foliage color, adaxial surface — Near RHS 137A. Mature foliage color, abaxial surface — Near RHS 138C. Venation — Pinnate. Venation color, adaxial surface — Near RHS 141B, with midrib RHS 141C. Venation color, abaxial surface — Near RHS 139D, with midrib RHS N144B. Petiolule — Dimensions — 0.2 cm long and 0.1 cm wide. Color — Near RHS 141D with no anthocyanin intonations present. Prickles — Not present. Texture — Smooth.
- Inflorescence type.—Flowers are clustered.
- Blooming habit.—Almost continuous from October through June in the southern hemisphere.
- Time to flower.—6 to 8 weeks for a new stem to mature and flowering begins to occur once a stem matures.
- Peduncle.—Dimensions — 3.5 cm long and 0.2 cm in diameter. Color — Near RHS 135D with anthocyanin present. Strength — Rigid. Texture and pubescence — Smooth with hairs. Prickles — Not present.
- Size.—3.0 cm long and 1.0 cm in diameter.
- Color.—Near RHS 141D with anthocyanin present.
- Calyx.—General — Comprised of five polysepalous sepals. Diameter of calyx — 0.5 cm. Sepals — Color, interior surface — RHS 150D. Color, exterior surface — RHS 144D with no anthocyanin. Dimensions — 2.0 cm long and 0.8 cm wide. Apex — Apiculate. Base — Flat at union with receptacle. Quantity — Five. Pubescence — Densely puberulent. Margins — Entire. Stipitate glands — Not present.
- Corolla.—General shape of corolla — Flat and open. Rate of opening — 6 days from bud to anthesis. Dimensions — Approximately 9 cm in diameter and 4 cm deep. Fragrance — Mild lemon spice scent. Lastingness — On the plant for 5 days after anthesis. Persistence — Self-cleaning. Petals — Petal count — Exhibits single flowers with approximately 7 petals under normal conditions. Petal arrangement — Rounded, irregular whorl at anthesis and aging to a flat whorl. Dimensions — 4.5 cm long and 4.0 cm wide. Petal shape — Obovate. Apex — Rounded. Base — Flattened, then obtuse. Petal reflex — Slightly reflexed at apex. Petal margin — Entire; slightly undulating. Texture — Soft. Aspect — Formal. Petal color, upon opening — Upper surface — Near RHS 42A. Lower surface — Near RHS 43C. Petal color, at anthesis — Upper surface — Near RHS 42A. Lower surface — Near RHS 43C. Fading — Red near RHS 46C.
- Reproductive organs:
- Stamens.—Quantity — Approximately 50. Anthers — Shape — Narrow ovate. Length — 0.1 cm. Color — Near RHS 166B. Pollen — Many. Pollen Color — Near RHS 3A. Filaments — Color — Near RHS 173D. Length — Approximately 0.8 cm.
- Pistils.—Quantity — Approximately 50. Length — Approximately 1.0 cm. Stigma — Shape — Ovate. Color — Near RHS 11B. Style — Length — Approximately 0.8 cm long. Color — Near RHS 18C.
- Ovary.—Dimensions — 0.5 cm long and 0.3 cm wide. Color — Near RHS 3D.
- Receptacle.—Shape — Pitcher-shaped. Dimensions — 0.5 cm high and 0.5 cm wide. Color — Near RHS 141D.
- Hip and seed:
- Hip.—Shape — Rounded. Dimensions — 1.0 cm long and 1.0 cm wide. Texture — Smooth. Color — Near RHS 142B.
- Seed.—Shape — Rounded. Dimensions — 1.0 cm long and 1.0 cm wide. Color — Near RHS 144D.
The new rose plant ‘GRAzest’ may be distinguished from its seed parent, an unnamed breeding line (not patented), by the following combination of characteristics:
- 1. The flowers of ‘GRAzest’ exhibit a distinct strong, bright red, whereas the flowers of the seed parent exhibit a white tonality.
- 2. ‘GRAzest’ exhibits an upright growth habit, whereas the seed parent exhibits an upright semi-weeping growth habit.
The new rose plant ‘GRAzest’ may be distinguished from its pollen parent, an unnamed breeding line (not patented), by the following combination of characteristics:
- 1. The flowers of ‘GRAzest’ exhibit a distinct strong red, whereas the flowers of the pollen parent exhibit a dark pink general tonality.
- 2. ‘GRAzest’ exhibits large flowers, whereas the flowers of the pollen parent are small to medium.
Plants of the new cultivar ‘GRAzest’ may be distinguished from the commercial variety Rosa hybrid ‘RADrazz’, having U.S. Plant Pat. No. 11,836, by the following combination of characteristics:
- 1. The flowers of ‘GRAzest’ are distinct strong, bright, true red with petals whereas the flowers of ‘RADrazz’ are uniform dark pink to cerise.
- 2. Growth of ‘GRAzest’ is upright to semi-weeping with bushy growth having red new growth in abundance, whereas ‘RADrazz’ has uniformly green foliage.
Priority Applications (2)
|Application Number||Priority Date||Filing Date||Title|
|US16/350,974 USPP31741P3 (en)||2018-02-06||2019-02-06||Floribunda rose plant named ‘GRAzest’|
Applications Claiming Priority (1)
|Application Number||Priority Date||Filing Date||Title|
|US16/350,974 USPP31741P3 (en)||2018-02-06||2019-02-06||Floribunda rose plant named ‘GRAzest’|
|Publication Number||Publication Date|
|US20190246535P1 US20190246535P1 (en)||2019-08-08|
|USPP31741P3 true USPP31741P3 (en)||2020-05-12|
Family Applications (1)
|Application Number||Title||Priority Date||Filing Date|
|US16/350,974 Active USPP31741P3 (en)||2018-02-06||2019-02-06||Floribunda rose plant named ‘GRAzest’|
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|US (1)||USPP31741P3 (en)|
- 2019-02-06 US US16/350,974 patent/USPP31741P3/en active Active
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