Patent Application
20230048035
The present invention relates to a new variety of Rudbeckia hirta referred to as ‘RDSGO01-0’ as well as to new, distinct and stable characteristics found in Rudbeckia hirta. The present invention relates to plants which have all of the morphological and physiological characteristics described herein, as well as plant parts which can be used to reproduce plants having the characteristics specific to Rudbeckia hirta referred to as ‘RDSGO01-0’ . The present invention also relates to methods for producing these plants of Rudbeckia hirta exhibiting the characteristics described herein. Furthermore, the present invention relates to a method of producing progeny Rudbeckia hirta plants by crossing the Rudbeckia hirta oleracea referred to as ‘RDSGO01-0’, as either the female or seed or male or pollen parent, with another Rudbeckia hirta plant, or ‘RDSGO01-0’, and selecting progeny. The present invention also relates to methods to produce new varieties of Rudbeckia hirta using the variety ‘RDSGO01-0’ in a breeding program.
The present invention relates to a new, distinct and stable variety of Rudbeckia hirta, hereinafter referred to by the variety denomination ‘RDSGO01-0’. The new Rudbeckia hirta ‘RDSGO01-0’ originated from a controlled breeding program in Santa Paula, Calif.
Rudbeckia hirta belong to the family Asteraceae a broad Genus consisting of more than 30,000 species. Rudbeckia hirta is native to Eastern and Central North America. Rudbeckia hirta is a flowering perennial with increasing popularity. Hative bees as well as butterflies are known to be attracted to the flower.
Methods for propagation are well known and include vegetative cuttings, tissue culture and less commonly division of plants. Rudbeckia hirta propagates readily from seed, however clonal stability is not assured with seed propagation.
Varieties of Rudbeckia hirta, are propagated both by sexual(seed) and asexual (vegetative) means are available on the market. These varieties are primarily considered annuals, as plants are unlikely to return after one year. Plants may seed freely, creating the impression a plant has returned. However, these are not identical clones, but annual seedlings, which may have variable phenotypes.
Rudbeckia hirta is a short-lived perennial, recommended to be treated as an annual by home gardeners. Jeffers, A. (2017), Rudbeckia Factsheet HGIC 1192, Clemson University. The new variety disclosed herein ‘RDSGO01-0’, is a true perennial to USDA Zone 5. Individual plants of ‘RDSGO01-0’ have been observed to survive unprotected outdoors during Winters in Colorado in confidential trials.
Most, if not all known commercial varieties of Rudbeckia hirta bloom under long day conditions. As consumers prefer to buy plants when in flower, this limits the sales period to late Spring and Summer, unless artificial light conditions are provided to plants.
The new variety begins blooming under any day length condition. The day-length neutral characteristic increases the sales season, without the need to manipulate the photoperiod.
The variety described herein is an ornamental Rudbeckia hirta plant, having the above-mentioned improvements combined with attractive ornamental characteristics. Plants retain the desirable ornamental traits of Rudbeckia hirta, including large, colorful inflorescences, remontant flowering, together with novel and improved floral induction.
To those trained in the art, the improvements described herein will be found both valuable and quantitative assets.
The following embodiments and aspects thereof are described in conjunction with systems, tools and methods which are meant to be exemplary, not limiting in scope.
The present invention provides Rudbeckia hirta plant selections which begin flowering under any day-length, being day-length neutral. Plants of Rudbeckia hirta ‘RDSGO01-0’ are hardy to USDA Zone 5. These qualities, combined with the description included herein, distinguish the new cultivar from known Rudbeckia hirta varieties.
These and other improvement and objectives have been achieved in accordance with the present invention which provide ‘RDSGO01-0’ as a new Rudbeckia hirta cultivar that is the product of a planned breeding program conducted by the inventor in Santa Paula, Calif.
The new variety ‘RDSGO01-0’ can be produced by asexual reproduction to produce a population of progeny plants, each of which has the combination of characteristics as herein disclosed for the new variety ‘RDSGO01-0’.
Terminology below may be useful for description and understanding of the new invention.
Additional Terminology, Related to Polyploidy
Biological material which is the variety ‘RDSGO01-0’ is to be deposited with Bigelow Laboratory for Ocean Sciences, East Boothbay, Me., a Budapest Treaty recognized depository which affords permanence of the deposit. Upon receipt the accorded International Depository Authority Accession Number will be provided as necessary.
The patent or application file contains multiple drawings executed in color. Copies of this patent or patent application publication with color drawing will be provided by the Office upon request and payment of the necessary fees.
The accompanying photographs illustrate the overall appearance and morphology of the new Rudbeckia hirta ‘RDSGO01-0’ showing the colors as true as is reasonably possible with colored reproductions of this type. Colors in the photograph may differ slightly from the color values cited in the detailed botanical description which accurately describes the color of ‘RDSGO01-0’.
FIG. 1 illustrates a side view of plants of Rudbeckia hirta ‘RDSGO01-0’ at approximately 12 to 13 weeks of age. This photo was taken in Santa Paula, Calif.
FIG. 2 illustrates a close-up view of an inflorescence of Rudbeckia hirta ‘RDSGO01-0’
The following embodiments and aspects thereof are described in conjunction with system, tools and methods which are meant to be exemplary, not limiting in scope
The present invention relates to Rudbeckia hirta plants, and parts thereof, having all the physiological and morphological characteristics of Rudbeckia hirta ‘RDSGO01-0’.
Another embodiment relates to a plant produced by vegetative means which are Rudbeckia hirta ‘RDSGO01-0’. The present invention also relates to plant parts, such as pollen, seeds or inflorescence produced by Rudbeckia hirta ‘RDSGO01-0’.
Another embodiment relates to a method of producing seed which are Rudbeckia hirta ‘RDSGO01-0’.
Another embodiment also relates to a method of producing Rudbeckia hirta progeny comprising the steps of (a) self-pollinating Rudbeckia hirta ‘RDSGO01-0’ (b) harvesting seeds produced from said self-pollination; and (c) producing plants from said harvested seeds.
The present invention also relates to producing progeny plants from the cross of Rudbeckia hirta ‘RDSGO01-0’, as the female or male parent, with another Rudbeckia hirta plant, and selecting progeny plants from this cross.
The present invention also relates to producing progeny plants of Rudbeckia hirta ‘RDSGO01-0’, by any known means of vegetative propagation.
The present invention also relates to producing progeny plants from Rudbeckia hirta ‘RDSGO01-0’, from natural or induced mutation.
Another embodiment relates to tissue culture produced from protoplast of cells from Rudbeckia hirta ‘RDSGO01-0’ plants disclosed in the subject application, wherein said cells or protoplasts are produced from a plant part selected from the group consisting of pollen, ovules, embryos, protoplasts, meristematic cells, callus, leaves, anthers, cotyledons, hypcotyl, pistils, roots, root tips, flowers, seeds, petiole and stems.
Another embodiment relates to a plant or a part thereof, produced by growing Rudbeckia hirta ‘RDSGO01-0’, wherein the plant part comprises at least one cell of Rudbeckia hirta ‘RDSGO01-0’.
Another embodiment relates to tissue or cell culture of regenerable cells produced from the plants of Rudbeckia hirta ‘RDSGO01-0’ as well as an Rudbeckia hirta plant regenerated from the tissue or cell culture of Rudbeckia hirta ‘RDSGO01-0’.
Another embodiment relates to a method of vegetatively propagating the plant of Rudbeckia hirta ‘RDSGO01-0’, comprising the steps of: collecting tissue or cells capable of being propagated from a plant of Rudbeckia hirta ‘RDSGO01-0’; cultivating said tissue or cells to obtain proliferated shoots; and rooted said shoots to obtain rooted plantlets; or cultivating said tissue or cells to obtain shoots or to obtain plantlets and a plant produced by growing the plantlets or shoots of said plant.
A further embodiment relates to a method for developing an Rudbeckia hirta plant in an Rudbeckia hirta breeding program, comprising applying plant breeding techniques comprising crossing, recurrent selection, mutation breeding, wherein said mutation breeding selects for a mutation that is spontaneous or artificially induced, backcrossing, pedigree breeding, marker enhanced selection, haploid/double haploid production, ploidy manipulation, or transformation to the Rudbeckia hirta plant of Rudbeckia hirta ‘RDSGO01-0’, or its parts, wherein application of said techniques results in development of an Rudbeckia hirta plant.
A further embodiment relates to a method of introducing a mutation into the genome of Rudbeckia hirta ‘RDSGO01-0’, and wherein the resulting plant comprises at least one genome mutation and producing plants there from.
In addition to the exemplary aspects and embodiments described above, further aspects and embodiments will become apparent by study of the following descriptions.
This invention is directed to Rudbeckia hirta plants having all the morphological and physiological characteristics of the variety ‘RDSGO01-0’ produced from either vegetative cuttings or tissue culture.
The new Rudbeckia hirta ‘RDSGO01-0’ can be produced by asexually reproducing progeny. Asexual reproduction of the new cultivar by vegetative means was first performed by vegetative cuttings during May of 2018, in Santa Paula, Calif. The first ‘RDSGO01-0’ plants propagated through the use of such cuttings are maintained in Santa Paula, Calif. and have reproduced multiple generations. Subsequent asexual reproduction has demonstrated that the new cultivar reproduces true-to-type and that the combination of characteristics as herein disclosed for the new cultivar are firmly fixed and retained through successive generations of asexual reproduction.
The following traits have been repeatedly observed and are determined to be unique characteristics of ‘RDSGO01-0’ which in combination distinguish these Rudbeckia hirta as new and distinct cultivars:
‘RDSGO01-0’ can be compared to the commercially known variety Rudbeckia hirta ‘Balrudosh’, USPP 25,496. These plants are similar in most horticultural characteristics. However, plants of the new cultivar ‘RDSGO01-0’ differ in the following:
1. ‘Baldorush’ has double-type inflorescences; ‘RDSGO01-0’ has single inflorescences.
2. ‘Baldorush’ has streaked ray florets; ‘RDSGO01-0’ has solid-colored ray florets.
3. ‘Baldorush’ requires long days to flower; ‘RDSGO01-0’ will flower under any day length.
‘RDSGO01-0’ can also be compared to the commercially known variety Rudbeckia hirta ‘RUDHT37’, USPP 30,657. These plants are similar in most horticultural characteristics. However, plants of the new cultivar ‘RDSGO01-0’ differ in the following ways:
1. ‘RUDHT37’ has a broad, upright habit; ‘RDSGO01-0’ is more upright than broad in habit.
2. ‘RUDHT37’ has large single inflorescences about 5″ to 6″ in diameter; flowers of ‘RDSGO01-0’ are typically smaller, 3″ to 5″ in diameter.
3. ‘RUDHT37’ requires long days to flower; ‘RDSGO01-0’ will flower under any day length.
‘RDSGO01-0’ has not been tested and observed under all possible environmental conditions. The phenotype of the new cultivar may vary with variations in environment such as temperature, light intensity, frequency of fertilization, composition of fertilizer, flowering treatment, day length and humidity, without any change in the genotype of the plant.
For example, substantial differences in plant height and diameter can be observed, depending upon environmental conditions and planting density. Inflorescence size and color can vary as well.
The aforementioned drawings, together with the following observations, measurements and values describe the new Rudbeckia hirta ‘RDSGO01-0’ as grown in a greenhouse in Santa Paula, Calif. Plants of ‘RDSGO01-0’ were grown in a research greenhouse with temperatures ranging from approximately 5° C. to 18° C. during the day and night temperatures ranging from approximately 20° C. to 30° C. in the day and approximately 15° C. to 25° C. in the day. No artificial lighting or photoperiodic treatments were conducted. Plants were measured at approximately 4.5 months old from an unrooted cutting.
Color reference are made to the Royal Horticultural Society Colour Chart (RHS), 2007 edition, except where general colors of ordinary significance are used. Color values were taken under daylight conditions in a greenhouse in Ventura County, Calif.
Ray Florets
Disc Florets
Filament length: Average 2-3 mm
Filament color: Near Greyed-Purple N186C.
Anther shape: Forked/curled
Anther length: 0.5 mm
Anther color: Greyed-Purple N186C.
Pollen amount: Moderate
Pollen color: Near Yellow-Orange 14C
