plant named ‘Burgundy Lace’
A new and distinct Corylus plant named ‘Burgundy Lace’ characterized by rich dark burgundy-colored developing leaves and burgundy-colored fully expanded leaves during the spring and summer; deeply dissected leaves; burgundy color of the catkins and leaf buds; moderate vigor and upright-spreading plant habit; resistance to eastern filbert blight (EFB) caused by the fungus Anisogramma anomala (Peck) E. Müller; presence of random amplified polymorphic DNA markers 152-800 and 258-580 in DNA; expression of incompatibility alleles S6 and S20 in the styles; catkins that are abnormal and small, and produce little pollen; and DNA fingerprints at 14 of 24 microsatellite marker loci differ from ‘Cutleaf’.
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This invention was made with government support under Specific Cooperative Agreement No. 58-5358-4-025 awarded by the United States Department of Agriculture. The government has certain rights in the invention.
Botanical denomination: Corylus avellana cultivar.
Variety designation: ‘Burgundy Lace’.
BACKGROUNDThe present disclosure relates to a new and distinct cultivar of Corylus plant, botanically known as Corylus avellana, and hereinafter referred to by the name ‘Burgundy Lace’.
The new Corylus resulted from a controlled cross of female parent OSU 562.034 (unpatented)×OSU 562.062 (unpatented) made in 1998 to create a new ornamental cultivar (
Hybrid seeds from the controlled cross were harvested in August 1998, stratified, and the resulting seedlings grown in a glasshouse during the summer of 1999. Seedlings that combined red leaf color and the ‘Cutleaf’ trait were preferred, and 38 of the 40 seedlings planted in the field in October 1999 combined these two traits. ‘Burgundy Lace’ was discovered and selected as a single plant within the progeny of the stated cross-pollination in a controlled environment in Corvallis, Oreg., USA. The new variety was originally assigned the designation OSU 954.076, which indicates the row and tree location of the original seedling.
The new cultivar was asexually reproduced by rooted suckers annually for five years (2005, 2006, 2008, 2011 and 2013) in Corvallis, Oreg. The unique features of this new Corylus are stable and reproduced true-to-type in successive generations of asexual reproduction.
SUMMARYThe following traits have been observed and are determined to be the unique characteristics of ‘Burgundy Lace’. These characteristics in combination distinguish ‘Burgundy Lace’ as a new and distinct cultivar:
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- 1. Rich dark burgundy-colored developing leaves and burgundy-colored fully expanded leaves during the spring and summer.
- 2. Deeply dissected leaves.
- 3. Burgundy color of the catkins and leaf buds.
- 4. Moderate vigor and upright-spreading plant habit.
- 5. Resistance to eastern filbert blight (EFB) caused by the fungus Anisogramma anomala (Peck) E. Müller.
- 6. Presence of random amplified polymorphic DNA markers 152-800 and 268-580 in DNA of ‘Burgundy Lace’ amplified by the polymerase chain reaction. These two markers are linked to a dominant allele for resistance to eastern filbert blight from the cultivar ‘Gasaway’ (unpatented).
- 7. Expression of incompatibility alleles S6 and S20 in the styles.
- 8. Catkins that are abnormal and small, and produce little pollen.
- 9. DNA fingerprints of ‘Burgundy Lace’ differ from ‘Cutleaf’ at 14 of 24 microsatellite marker loci. Additional DNA fingerprints of ‘Gasaway’ and ‘Rode Zeller’, which are ancestors of ‘Burgundy Lace’, and 12 other reference cultivars, are shown in Table 7.
‘Burgundy Lace’ is well-suited to the ornamental market. ‘Burgundy Lace’ combines red leaf color, deeply dissected leaves, and resistance to eastern filbert blight (EFB) caused by Anisogramma anomala (Peck) E. Müller. Comparisons in two trials conducted in Corvallis, Oreg., plants of ‘Burgundy Lace’ in the guard rows differed from plants of the Corylus avellana cultivars ‘Barcelona’ (unpatented) and ‘Jefferson’ (unpatented), and other cultivars and selections of Corylus avellana known to the Inventors primarily in nut size, nut shape, kernel percentage (ratio of kernel weight to nut weight), frequency of defects (blank nuts, moldy kernels, twins, etc.), time of pollen shed, time of nut maturity, length of the husk or involucre, and plant size.
The tree is moderately vigorous, similar in size to ‘Jefferson’, and has a desirable upright-spreading growth habit that should be easy to manage in a landscape setting. The nuts are small and the kernels are edible, but nut yields are low and quality is not suitable for the kernel market. ‘Burgundy Lace’ has far fewer blanks (shells lacking kernels) than ‘Cutleaf’. ‘Burgundy Lace’ has intermediate ratings for bud mite (primarily Phytoptus avellanae Nal.), similar to ‘Clark’. Like its grandparent ‘Cutleaf’, catkins of ‘Burgundy Lace’ shed very little pollen. Pollen shed and female receptivity are late.
DNA markers and field observations indicate that ‘Burgundy Lace’ has resistance to eastern filbert blight (EFB) caused by the fungus Anisogramma anomala (Peck) E. Müller. The resistance is conferred by a dominant allele from ‘Gasaway’. EFB is now present throughout the Willamette Valley and in the eastern USA where it naturally occurs on the wild American hazelnut (C. americana), but causes little damage. Pruning to remove cankers and fungicide applications are currently used to manage the disease in susceptible cultivars. Thus, ‘Burgundy Lace’ is suitable for planting in areas with high disease pressure.
The accompanying colored photographs illustrate the overall appearance of the new cultivar, showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Foliage colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Corylus.
The cultivar ‘Burgundy Lace’ has not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment such as temperature and light intensity, without, however, any variance in genotype. The aforementioned photographs and following observations and measurements describe plants grown in Corvallis, Oreg. under commercial practice outdoors in the field during the fall, winter and spring. Plants used for the photographs and description were propagated by tie-off layerage and growing on their own roots, and seven or eight years old. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 1966 Edition, except where general terms of ordinary dictionary significance are used.
- Botanical classification: Corylus avellana cultivar ‘Burgundy Lace’.
- Parentage:
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- Female, or seed, parent.—Corylus avellana cultivar ‘OSU 562.034’ (unpatented).
- Male, or pollen, parent.—Corylus avellana cultivar ‘OSU 562.062’ (unpatented).
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- Propagation (type rooted suckers):
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- Time to initiate roots.—About 30 days at 20° C.
- Time to produce a rooted young plant.—About six months at 22° C.
- Root description.—Fine to thick; freely branching; creamy white in color.
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- Propagation (type whip grafting):
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- Time to budbreak on the scions.—About 14 days at 25° C.
- Time to produce a grafted plant.—About six months at 25° C.
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- Plant description:
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- General appearance.—Perennial shrub. Upright-spreading plant habit.
- Growth and branching habit.—Freely branching; about 15 lateral branches develop per plant. Pinching, that is, removal of the terminal apices, enhances branching with lateral branches potentially forming at every node.
- Vigor.—Moderate vigor growth habit.
- Size.—Plant height is about 5 meters; plant diameter or spread is about 5 meters.
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- Lateral branch description:
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- Length.—About 51 cm.
- Diameter.—About 3.8 mm.
- Internode length.—About 3.3 cm.
- Texture.—Smooth, glabrous.
- Strength.—Strong.
- Color, immature.—152B.
- Color, mature.—152B.
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- Foliage description:
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- Arrangement.—Alternate, simple.
- Length.—About 11.4 cm.
- Width.—About 7.4 cm.
- Shape.—Cutleaf (deeply serrated).
- Apex.—Obtuse to acute.
- Base.—Cordate.
- Margin.—Deeply serrated.
- Texture, upper and lower surfaces.—Slightly pubescent.
- Venation pattern.—Pinnate.
- Color.—Developing foliage, upper surface 144A, lower surface 145A. Fully expanded foliage, upper surface: Spring and summer, 143A; late summer and fall, 143A. Fully expanded foliage, lower surface: Spring and summer, 139C; late summer and fall, 139C. Venation, upper surface: Spring and summer, 139C; late summer and fall, 139C. Venation, lower surface: Spring and summer, 139D; late summer and fall, 139D.
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- Petiole description:
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- Length.—About 27 mm.
- Diameter.—About 1.8 mm.
- Texture, upper and lower surfaces.—Pubescent.
- Color, upper surface.—Spring and summer, 139D; late summer and fall, 139D.
- Color, lower surface.—Spring and summer, 139D; late summer and fall, 139D.
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- Flower description: Male inflorescences are catkins, color prior to elongation 194C. Female inflorescence style color 048B.
- Nut description:
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- Length.—About 19.1 mm.
- Width.—About 20.7 mm.
- Depth.—About 18.2 mm.
- Nut shape.—Round. Nut shape index [(Width+Depth)/2*Length]=1.02. Nut compression index (Width/Depth)=1.14.
- Nut shell color.—164B. Nut weight: About 1.72 grams.
- Kernel weight.—About 0.76 grams.
- Kernel percentage (kernel weight/nut weight).—About 44%.
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- Disease/pest resistance: Plants of the new Corylus are highly resistant to eastern filbert blight caused by the fungus Anisogramma anomala (Peck) E. Müller, although a few small cankers may develop under high disease pressure. Plants of the new Corylus are moderately susceptible to bud mites (Phytoptus avellanae Nal.), while plants of ‘Tonda Gentile delle Langhe’ are highly susceptible, and plants of ‘Barcelona’ are highly resistant.
- Temperature tolerance: Plants of the new Corylus have been observed to tolerate temperatures from −21 to 38° C. in the field in Corvallis, Oreg.
- Comparative data:
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- Tree size, growth habit, yield, and yield efficiency.—Tree sizes in the trials were estimated by measuring trunk diameters 30 cm above the soil line, at the end of the 7th growing season (December 2013 and 2014, respectively). Trunk cross-sectional area (TCA) was calculated from trunk diameter. Trees of ‘Burgundy Lace’ are moderately vigorous, similar in size to ‘Jefferson’ (Tables 1 & 2). In previous trials, TCAs of ‘Jefferson’ and ‘Lewis’ were about 70% of ‘Barcelona’. Their upright-spreading growth habit of ‘Burgundy Lace’ trees should be easy to manage in a landscape setting. In the 2007 trial, total nut yield per tree averaged 10.04 kg for ‘Burgundy Lace’, which is less than the other four cultivars (Table 1). Nut yield efficiency for OSU 954.076 (0.122 kg/cm2), which adjusts for differences in tree size, was similar to ‘Felix’ (0.133 kg/cm2), and lower than ‘Jefferson’ (0.299 kg/cm2), ‘Santiam’ (unpatented) (0.267 kg/cm2) and ‘McDonald’ (0.245 kg/cm2). In the 2008 trial, total nut yield per tree averaged 11.39 kg for ‘Burgundy Lace’, which is more than ‘Eta’ (unpatented) (7.78 kg) but less than the other 13 genotypes (Table 2). Nut yield efficiency for OSU 954.076 (0.134 kg/cm2), which adjusts for differences in tree size, was similar to the pollinizer ‘Theta’ (unpatented) (0.149 kg/cm2), higher than ‘Eta’ (0.100 kg/cm2) and lower than ‘Jefferson’ (0.292 kg/cm2) and the others in the trial. Although ‘Burgundy Lace’ would generally not be planted for nut production, its nuts show a very low frequency of defects (Tables 3 & 4). In the 2007 trial, nut weight was 1.72 g and kernel percentage was 44.1%, the latter being similar to ‘Barcelona’ (typically 43%). The amount of fiber on the pellicle was rated on a scale of 1 (no fiber) to 4 (heavy fiber) (Table 5). The rating for ‘Burgundy Lace’ (2.8) was similar to ‘Jefferson’ (3.0) and indicates a moderate amount of fiber. Kernel blanching, or ease with which the pellicle can be removed with dry heat followed by rubbing, was rated on a scale of 1 (complete pellicle removal) to 7 (no pellicle removal). The rating for ‘Burgundy Lace’ (6.6) indicates that very little of the pellicle is removed by dry heat. Very few moldy kernels were observed in ‘Burgundy Lace’ (0.5%), in striking contrast to ‘Santiam’ (17.3%) (Table 3). The results from the second trial (Table 4) were nearly identical: nut weight 1.71 g, kernel percentage 44%, fiber rating 2.8, blanching rating 6.6, with 87.5% good nuts and very few defects. The kernels, raw or roasted, are not attractive.
- Nut maturity date.—Most nuts of ‘Burgundy Lace’ are borne in clusters of two, in husks about half as long as the nuts. The nuts are slightly long and compressed. The husks open as they dry at maturity, and about 98% of the nuts fall free of the husk. When mature, the shells are medium brown in color and have pubescence at the apical end. Harvest date is estimated to be three days before ‘Barcelona’.
- Incompatibility and pollinizers.—‘Burgundy Lace’ has incompatibility alleles S6 and S20 as determined by fluorescence microscopy. Both alleles are expressed in the females, but only S6 is expressed in the pollen because of dominance. By convention, alleles expressed in the pollen are underlined. The trees set a moderate number of catkins. The catkins are abnormal and small, as are those of ‘Cutleaf’, and shed very little pollen. For practical purposes, ‘Burgundy Lace’ is male-sterile, although collection of a handful of catkins can give a trace of pollen. Time of pollen shed and female receptivity were observed weekly from December 2012 to March 2013 and December 2013 to March 2014 (
FIG. 2 ). Female flower receptivity of ‘Burgundy Lace’ is late and about one week earlier than ‘Cutleaf’ and four weeks later than ‘Barcelona’. Time of catkin elongation of ‘Burgundy Lace’ is also late and about three weeks earlier than ‘Cutleaf’ and three weeks later than ‘Barcelona’. Date of leaf budbreak is about one week later than ‘Cutleaf’ and 2.5 weeks later than ‘Barcelona’. Pollen of the following EFB-resistant cultivars is compatible on females of ‘Burgundy Lace’: ‘Yamhill’ (S8 S26), ‘Dorris’ (S1 S12), ‘McDonald’ (S2 S15), ‘Wepster’ (S1 S2), ‘York’ (S2 S21), ‘Gamma’ (S2 S10), ‘Jefferson’ (S1 S3), ‘Felix’ (S15S21) and ‘Theta’ (S5 S15). Because females of ‘Burgundy Lace’ are receptive late in the season, the late-shedding pollinizers ‘Felix’ and ‘Theta’ are most effective. - Pests and diseases.—Based on DNA marker data, ‘Burgundy Lace’ has a very high level of resistance to EFB conferred by a dominant allele from ‘Gasaway’, so fungicide applications are not needed. RAPD markers 152-800 and 268-580 that flank the resistance allele in ‘Gasaway’, are present in ‘Burgundy Lace’. Trees of ‘Burgundy Lace’ have not yet been challenged with the EFB pathogen in glasshouse or structure inoculations. Susceptibility to bacterial blight caused by Xanthomonas campestris pv. corylina has not been quantified, but none of the three trees in the two trials were affected. Nevertheless, copper sprays to minimize damage from this pathogen can be performed. Susceptibility to big bud mite (primarily Phytoptus avellanae Nal.) was rated in the 2007 trial (Table 3) after leaf fall once per year for five years (December 2009-2013). The scale was from 1 (no blasted buds) to 5 (many blasted buds). The average rating for ‘Burgundy Lace’ (3.0) is similar to that for ‘Clark’ and lower than for ‘Cutleaf’ (4.0), which was rated one year at the Smith Farm and three years (2000-2002) at the nearby USDA National Clonal Germplasm Repository. In the 2008 trial, the rating for ‘Burgundy Lace’ (3.1) is the same as for the moderately susceptible ‘Clark’ (3.0). The number of blasted buds for ‘Burgundy Lace’ is lower than ‘Cutleaf’ and sprays should not be necessary to control this pest. The other check cultivars in the two trials had lower bud mite ratings.
- Propagation.—‘Burgundy Lace’ was propagated by tie-off layerage of the suckers of the original seedling tree in late June over five years (2005, 2006, 2008, 2011 and 2013). On average, 22 suckers were layered, with rooting rated good on 11 and fair on 7, poor on 3 and no roots on one. The size (caliper) was rated as medium to large in most years. Layers are moderately vigorous and root well, but have lower vigor and caliper than those of ‘Jefferson’ and ‘Barcelona’.
- DNA fingerprinting.—Primers used are shown in Table 6, and results shown in Table 7. ‘Burgundy Lace’ differs from ‘Cutleaf’ at 14 of 24 loci.
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Bassil N. V., Botta R., Mehlenbacher S. A. 2005a. Microsatellite markers in hazelnut: Isolation, characterization and cross-species amplification. J. Amer. Soc. Hort. Sci. 130:543-549.
Bassil N. V., Botta R., Mehlenbacher S. A. 2005b. Additional microsatellite markers of the European hazelnut. Acta Hort. 686:105-110.
Bassil N., Boccacci P., Botta R., Postman J. and Mehlenbacher S. 2012. Nuclear and chloroplast microsatellite markers to assess genetic diversity and evolution in hazelnut species, hybrids and cultivars. Genetic Resources and Crop Evolution (on-line) DOI10.1007/s10722-012-9857-z
Boccacci P., Akkak A., Bassil N. V., Mehlenbacher S. A., Botta R. 2005. Characterization and evaluation of microsatellite loci in European hazelnut (C. avellana) and their transferability to other Corylus species. Molec. Ecol. Notes 5:934-937.
Boccacci R, Akkak, A. and Botta, R. 2006. DNA typing and genetic relations among European hazelnut (Corylus avellana L.) cultivars using microsatellite markers. Genome 49:598-611.
Gökirmak T., Mehlenbacher S. A., Bassil N. V. 2009. Characterization of European hazelnut (Corylus avellana) cultivars using SSR markers. Genetic Resources and Crop Evolution 56:147-172.
Gürcan, K. and S. A. Mehlenbacher. 2010. Transferability of microsatellite markers in the Betulaceae. J. Amer. Soc. Hort. Sci. 135:159-173.
Gürcan, K. and S. A. Mehlenbacher. 2010. Development of microsatellite marker loci for European hazelnut (Corylus avellana L.) from ISSR fragments. Molecular Breeding 26:551-559.
Gürcan, K. and S. A. Mehlenbacher and V. Erdogan. 2010a. Genetic diversity in hazelnut cultivars from Black Sea countries assessed using SSR markers. Plant Breeding 129:422-434. (available on-line doi:10.1111/j.1439-0523.2009.01753.x).
Gürcan, K., S. A. Mehlenbacher, R. Botta and P. Boccacci. 2010b. Development, characterization, segregation, and mapping of microsatellite markers for European hazelnut (Corylus avellana L.) from enriched genomic libraries and usefulness in genetic diversity studies. Tree Genetics and Genomes 6:513-531. (available on-line as DOI:10.1007/s11295-010-0269-y)
Mehlenbacher et al., 2004. RAPD markers linked to eastern filbert blight resistance in Corylus avellana. Theor. Appl. Genet. 108:651-656.
Mehlenbacher and Smith. 1995. Inheritance of the cutleaf trait in hazelnut. HortScience 30:611-612.
Sathuvalli, V. R. and S. A. Mehlenbacher. 2012. Characterization of American hazelnut (Corylus americana) accessions and Corylus americana×Corylus avellana hybrids using microsatellite markers. Genetic Resources and Crop Evolution 59:1055-1075. DOI10.1007/s10722-011-9743-0.
Claims
1. A new and distinct cultivar of Corylus plant as herein illustrated and described.
- Bassil et al, “Additional Microsatellite Markers of the European Hazelnut,” Acta Hortic. vol. 686, pp. 105-110, 2005.
- Bassil et al, “Microsatellite Markers in Hazelnut: Isolation, Characterization, and Cross-species Amplification,” J. Amer. Soc. Hort. Sci., vol. 130(4), pp. 543-549, 2005.
- Bassil et al, “Nuclear and chloroplast microsatellite markers to assess genetic diversity and evolution in hazelnut species, hybrids and cultivars,” Genet. Resour. Crop Evol., vol. 60(2), pp. 543-568, 2012.
- Boccacci et al, “Characterization and evaluation of microsatellite loci in European hazelnut (Corylus avellana L.) and their transferability to other Corylus species,” Molecular Ecology Notes, vol. 5, pp. 934-937, 2005.
- Boccacci et al, “DNA typing and genetic relations among European hazelnut (Corylus avellana L.) cultivars using microsatellite markers,” Genome, vol. 49, pp. 598-611, 2006.
- Gökirmak et al, “Characterization of European hazelnut (Corylus avellana) cultivars using SSR markers,” Genet. Resour. Crop Evol., vol. 56(2), pp. 147-172, 2008.
- Gürcan et al, “Genetic diversity in hazelnut (Corylus avellana L.) cultivars from Black Sea countries assessed using SSR markers,” Plant Breeding, vol. 129, pp. 422-434, 2010.
- Gürcan et al, “Development, characterization, segregation, and mapping of microsatellite markers for European hazelnut (Corylus avellana L.) from enriched genomic libraries and usefulness in genetic diversity studies,” Tree Genetics & Genomes, vol. 6, pp. 513-531, 2010.
- Gürcan et al, “Transferability of Microsatellite Markers in the Betulaceae,” J. Amer. Soc. Hort. Sci. 135(2), pp. 159-173, 2010.
- Gürcan and Mehlenbacher. “Development of microsatellite marker loci for European hazelnut (Corylus avellana L.) from ISSR fragments,” Molecular Breeding 26:551-559, 2010.
- Mehlenbacher et al., “Inheritance of the Cutleaf Trait in Hazelnut,” HortScience, vol. 30(3), pp. 611-612, 1995.
- Mehlenbacher et al., “‘Tonda Pacifica’ hazelnut,” HortScience 46:505-508, 2011.
- Mehlenbacher et al., “‘Santiam’ hazelnut” HortScience 42:715-717, 2007.
- Mehlenbacher et al., “RAPD markers linked to eastern filbert blight resistance in Corylus avellana,” Theor. Appl. Genet., vol. 108, pp. 651-656, 2004.
- Sathuvalli et al., “Characterization of American hazelnut (Corylus americana) accessions and Corylus americana×Corylus avellana hybrids using microsatellite markers,” Genet. Resour. Crop. Evol., vol. 59, pp. 1055-1075, 2012.
Type: Grant
Filed: Sep 21, 2015
Date of Patent: Jul 25, 2017
Patent Publication Number: 20170086341
Assignee: Oregon State University (Corvallis, OR)
Inventors: Shawn A. Mehlenbacher (Corvallis, OR), David C. Smith (Corvallis, OR), Rebecca L. McCluskey (Corvallis, OR)
Primary Examiner: Anne Grunberg
Application Number: 14/756,596
International Classification: A01H 5/12 (20060101);