Hop plant named “YCR Accession No. 7”

Abstract

The new hop plant variety is a bittering-type cultivar of recent origin. Its bittering and aromatic properties are similar to the Galena hop variety. However, unlike Galena which is susceptible to powdery mildew, the new variety is moderately tolerant to powdery mildew. It is also tolerant to Sphaerotheca. The new variety produces a medium size cone with fair to good pickability, and fair to good storageability. Harvest is medium-late, with a crop yield of 2450 to 2550 pounds per acre (2750 to 2860 kg/ha).

Description

BACKGROUND AND SUMMARY OF INVENTION

This invention relates to a new and distinct variety of hop plant, and more particularly to a new hop plant variety of unknown parentage which was discovered among plants created as part of a controlled breeding program. The new variety has been stably reproduced over successive generations. Discovery of the new variety and initial reproduction by root cuttings was carried out in a research nursery in Prosser, Wash., U.S.A. Subsequent asexual reproduction took place in Granger, Wash., U.S.A.

THE DRAWINGS

FIG. 1 shows a hop cone of the new hop plant variety;

FIG. 2 shows a cluster of hop cones of the new hop variety;

FIG. 3 shows a cluster of hop cones of the new hop variety;

FIG. 4 shows a blossom and leaf of the new hop plant variety;

FIG. 5 shows a bine of the new hop plant variety; and

FIG. 6 shows a hop plant of the new variety.

DESCRIPTION OF THE VARIETY

The new hop plant variety is a bittering-type cultivar of recent origin. Its bittering and aromatic properties are similar to the Galena (unpatented) hop variety. However, unlike Galena which is susceptible to powdery mildew, the new variety is moderately tolerant to powdery mildew. It is also tolerant to Sphaerotheca. The new variety produces a medium size cone with fair to good pickability (similar to Galena), and fair to good storageability (25% to 30% alpha loss after six months common storage). Harvest is medium-late (approximately September 5 in Granger Wash.), with a crop yield of 2450 to 2550 pounds per acre (2750 to 2860 kg/ha).

The following is a detailed botanical description of the new and distinct variety of Humulus lupulus, based on observations of specimens grown in Grange, Wash. during the 1998 growing season. All colors are described according to The Royal Horticultural Society Colour Chart. It should be understood that the botanical and analytical chemical characteristics described will vary somewhat depending upon cultural practices and climatic conditions and can vary with location and season.

1. Bine:

Color.—Yellow green (146D).

Stripe.—None.

Stipule color.—Yellow green (146D).

Stipule direction.—Down, forked.

Diameter.—1.05 cm (measurement taken at 2.75 m).

Shoot emergence.—Medium early to medium; similar to Galena.

2. Leaves:

Leaf arrangement.—Opposite.

Leaf shape.—Cordate to palmate.

Average length.—18.8 cm.

Average width.—19.7 cm.

Color — upper surface, mature.—Green (139A).

Color — lower surface, mature.—Green (137B).

Color — upper surface, immature.—Green (139A).

Color — lower surface, immature.—Green (137B).

Number of leaf lobes.—1-5.

Margin.—Serrate.

Serrations per inch.—5 min., 8 max.

Pose.—Downward.

Average petiole length.—8.9 cm.

Venation.—Palmate.

Vein color.—Yellow green (146D).

3. Cones:

Average length.—3.3 cm.

Average diameter.—1.7 cm.

Color.—Bract tip: Yellow green (144A). Bract base: Yellow green (145D). Bracteole: Yellow green (145C).

Shape.—Ovoid.

Bract shape.—Obovate.

Bract tip shape.—Mucronate.

Bract tip position.—Recurved.

Bracteole shape.—Oblanceolate.

Bracteole tip shape.—Narrowly rounded tip.

Shattering potential at harvest.—Similar to Galena.

% Alpha acids.—12.0%-14.0% of cone weight (ASBC Spectrophotometric method).

% Beta acids.—8.0%-9.0% of cone weight (ASBC Spectrophotometric method).

% Cohumulone.—32%-35% of alpha acids.

Total oils.—1.5-1.8 mL/100 g.

Aroma.—Mild, floral with spicy notes.

4. Technical data: Essential Oil Profile of YCR Accession No. 7: 103 mg of 10% Adsorbate/150C/5 Min. by DTD-GC-MS.

MS Area Spec# Integration Peak Assignment Area %  76-212 18520 acetone + isoprene 0.297 235-256 8148 2-methyl-3-buten-1-ol 0.131 274 412 pentanal ? 0.007 280 1051 hexene 0.017 287 412 ? 0.007 297 189 ? 0.003 302 145 ? 0.002 317 128 ? 0.002 350 2519 acetic acid 0.040 364 105 methylpentanone 0.002 371 1887 ? m/z 56, 70 peaks 0.030 387 166 ? 0.003 404 615 3-methyl-2-butenal 0.010 415 466 hexanal 0.007 426 3539 isobutyric acid 0.057 432 3119 n-octane 0.050 460 284 ? 0.005 473 229 isopropylisobutyrate 0.004 482 7032 3-methylbutyric acid 0.112 491 4103 2-methylbutyric acid 0.066 505 221 ? m/z 82/81/67 peaks 0.004 508 877 ? m/z 81 peak 0.014 521 14624 propanoic acid + propylisobutyrate 0.234 528 1939 2,6-dimethyl-2,4-heptadiene 0.031 537 2721 5,5-dimethyl-2(5H)-furanone 0.044 546 1776 alpha-pinene 0.028 554 587 isobutylisobutyrate 0.009 557 704 4-methylpentanoic acid 0.011 562 842 dimethyltrisulfide 0.013 569 30632 2-methylbutylpropanoate 0.491 578 600 6-methyl-5-heptene-2-one 0.010 582 43591 beta-pinene + methyl-5- 0.698 methylhexanoate 595 1589016 myrcene 25.451 600 2746 isobutyl-2-methylbutyrate 0.044 607 38160 3-methylbutylisobutyrate 0.611 611 102594 2-methylbutylisobutyrate 1.643 615 18027 methylheptanoate 0.289 621 1084 ? sulfur-compd. possibly 0.017 S-methylmethanethiosulphonate 629 12559 limonene + beta-phellandrene 0.201 634 2067 ? terpene 0.033 645 86156 beta-ocimene + 1.380 pentyl-2-methylpropanoate 654 400 methyl-2,5-dimethylhexanoate 0.006 656 665 gamma-terpinene 0.011 662 450 isoctanol 0.007 672 6486 heptanoic acid 0.104 676 51375 methyl-6-methylheptanoate 0.823 682 1875 linalool oxide 0.030 686 650 terpinolene 0.010 691 24253 linalool + nonanal 0.388 697 16354 2-methylbutyl-2-methylbutyrate 0.262 700 10821 pentyl-3-methylbutyrate 0.173 704 661 ? sulfur-compd. 0.011 713 51579 methyloctanoate 0.826 718 888 ? sulfur-compd. 0.014 725 1636 2,3-dihydro-3,5-dihydroxy-6- 0.026 methyl-4(H)-pyran-4-one 734 11124 octanoic acid (branched isomer) 0.178 740 12989 hexylisobutyrate 0.208 743 450 cis-3-hexenylisobutyrate 0.007 745 1999 2-decanone (branched isomer) 0.032 752 458 heptanethioic acid, S-methyl ester 0.007 758 439 methylphenylacetate 0.007 771 22724 ? m.w. branched alcohol m/z 59 base 0.364 peak + octanoic acid 779 262 4,8-dimethylnona-1,7-diene 0.004 783 16073 methylnonanoate (branched isomer) 0.257 789 11463 methylnonanoate (branched isomer) 0.184 795 165 ? 0.003 801 1728 heptylpropanoate 0.028 807 4605 methylnonenoate 0.074 818 541 ? 164 m.w. w/149 base peak 0.009 (phenolic ?) 824 26497 methylnonanoate 0.424 831 83 nerol 0.001 841 1433 nonanoic acid (branched isomer) 0.023 848 347 ? 0.006 853 4011 2-methylheptylpropanoate 0.064 858 4500 geraniol 0.072 861 12462 2-undecanone (branched isomer) 0.200 870 211 methyl, 2-methylnonenoate 0.003 873 222 2-undecanol 0.004 882 11051 undecenyl alcohol + nonanoic acid 0.177 895 474 octenyl acetate 0.008 902 49630 methyldecanoate (branched isomer) 0.795 905 29807 2-undecanone 0.477 910 511 ? 180 m.w., 95 base peak, possibly 0.008 bornylformate 921 2556 octylpropanoate 0.041 926 267900 methyl-4-decenoate + methyl-4,8- 4.291 decadienoate 937 4377 methyldecenoate isomer + tridecane 0.070 940 4657 methylgeranate 0.075 947 91720 methyldecanoate 1.469 959 2258 decanoic acid (branched isomer) 0.036 976 7728 octyl-2-methylpropanoate 0.124 981 578 ? unsaturated alcohol or aldehyde 0.009 987 6658 2-dodecanone (branched isomer) 0.107 993 15287 methyl-2-undecenoate 0.245 999 3411 alpha-cubebene 0.055 1007 8331 decanoic acid 0.133 1014 15024 geranyl acetate 0.241 1020 307 ? acetate 0.005 1024 769 possibly bornylacetate 0.012 1029 40607 methylundecanoate (branched isomer) 0.650 1034 15141 alpha-ylangene + 2-dodecanone 0.243 1038 2758 2-methydecanoic acid 0.044 1048 2282 alpha-copaene 0.037 1055 2036 methylundecadienoate 0.033 1064 3883 methyl-10-undecenoate 0.062 1071 665 ? sesquiterpene 206 m.w. 163 base peak 0.011 1076 3061 methylundecanoate 0.049 1091 755736 caryophyllene 12.104 1100 18236 beta-cubebene 0.292 1106 718 linalylisobutyrate 0.011 1111 1009 3-methylbutyloctanoate 0.016 1120 4584 2-tridecanone (branched isomer) 0.073 1135 1466661 humulene 23.491 1140 2713 ? 204 m.w. sesquiterpene 161 base peak 0.043 1145 1812 methyldodecenoate 0.029 1156 48981 gamma-muurolene + 0.785 methyldodecanoate 1165 4436 2-tridecanone 0.071 1170 739846 beta-selinene 11.850 1177 19970 methyl-3,6-decadienoate 0.320 1183 64588 alpha-selinene 1.034 1186 28882 geranyl isobutyrate 0.463 1192 4917 methyldodecenoate + delta-cadinene 0.079 1202 32080 alpha-muurolene 0.514 1206 2266 calamenene 0.036 1213 54844 beta-cadinene 0.878 1225 4495 delta-selinene 0.072 1232 10491 sesquiterpene w/no common name 0.168 CAS#16728-99-7, cadinene-type 1242 4032 selina-3,7-diene (eudesma-3,7-diene) 0.065 1250 201 2-tetradecanone (branched isomer) 0.003 1258 6066 elixene 0.097 1264 284 ? 0.005 1268 139 caryophyllyl alcohol 0.002 1282 10530 caryophyllene oxide 0.169 1293 300 methyltridecadienoate 0.005 1299 1823 humulene epoxide 0.029 1304 307 methyridecenoate 0.005 1313 18259 humulene epoxide 0.292 1319 1141 globulol 0.018 1324 1521 ? 222 m.w. sesquiterpene 0.024 1339 6389 delta-cadinol 0.102 1351 8125 cadinol 0.130 1363 1200 eudesmol 0.019 1366 12410 Juniper Camphor (eudesma-7-en-4-ol) 0.199 1387 378 geranyl ester ? 0.006 1391 145 ? 0.002 1439 198 ? 0.003 1520 1897 ? 250 m.w. w/115 base peak 0.030 6243539 Total Essential Oil Components 100.000

Claims

1. A new variety of hop plant substantially as herein shown and