Poplar tree named ‘Gold Poplar’

Abstract

A new and distinct poplar tree variety, Populus, cv. Gold Poplar is characterized by having tender yellow color leaves in the spring (Y100,C10,M5,B0), green and yellow leaves in the summer (Y100,C20,M10,B0) and gold leaves in the fall (Y100,C0,M40,B0) with a red petiole (Y100,M100,C20,B0).

Claims

1. A new and distinct variety of poplar tree as herein described and illustrated.

Description

BRIEF DESCRIPTION OF THE PHOTOGRAPH

(1) The accompanying photographs show typical specimens of the new variety, designated Gold Poplar in the illustrations, including foliage, trunk and stems, in color as nearly true as it is reasonably possible to make in color illustrations of this character.

(2) The photographs of the new variety Gold Poplar were taken in China in 2017 and 2018.

(3) FIGS. 1 and 2 show one-year-old trees with two-year-old roots and one-year-old stems of the new variety Gold Poplar in the summer of 2018 in Huadian, Jilin, China.

(4) FIG. 3 shows three-year-old trees with three-year-old roots and three-year-old stems of the new variety Gold Poplar in the summer of 2018 in Huadian, Jilin, China.

(5) FIGS. 4, 5 and 6 show one-year-old trees with one-year-old roots and one-year-old stems of the new variety Gold Poplar in the summer of 2018 in Longtan, Jilin, China.

(6) FIGS. 7 and 8 show one-year-old trees with two-year-old roots and one-year old-stem of the new variety Gold Poplar in the summer of 2017 in Huadian, Jilin, China.

DESCRIPTION OF THE NEW VARIETY

(7) Throughout this specification, color names beginning with a small letter signify that the name of that color, as used in common speech is aptly descriptive. Color number descriptions were obtained using the Complete Process Colour Finder (Art Distribution Center Ltd., 1996).

(8) The descriptive matter which follows pertains to three-year-old Gold Poplar plants grown in Jilin, China and evaluated on Mar. 29, 2018. It is believed to apply to plants of the variety grown under similar conditions of soil and climate elsewhere. Plant: Growth potential.Weak. Shape of trunk.Straight. Shape of crown.Ovate. Bark cracking.Absent (young tree). Stem: Shape of crown.Ovate. Angle on height stem.Present. Stem: Groove depth on stem.Medium. Color of sunny side on stem.About reddish brown (C30,M80,Y80,K30). Color of nightside on stem.About pale red (C0,M70,Y60,K0). Mucilages on height stem.Present. Floss on height stem.Absent. Angle on height stem.Present. Groove depth on stem.Shallow. Color of sunny side on stem.About light green (C60,M30,Y40,K0). Color of nightside on stem.About grey green (C70,M40,Y60,K20). Color of height stem.About reddish brown (C30,M80,Y80,K30). Shade color of height stem.About light red (C0,M70,Y60,K0). Texture of height stem.Edges and grooves present. Cross section at height at the center of an internode.Circular with irregularly distributed with triangular protrusions on the periphery. The number of triangular protrusions is 3 to 6 and the height of the triangular protrusions is 1 cm to 3 cm. Sipules.Absent. Time of appearance of green tips of the terminal bud.Medium to late. Lenticels: Distribution.Irregular. Shape.Circle. Lateral branch: Quantity.Large, about 20 to 25. Angle.Medium, about 50 to 70 degrees. Attitude.Upward. Leaf: Leaf glands shape at base of leaf.Oval. Leaf posture.Upward (spring and summer). Leaf bud: Shape.Long ovate. Length.Medium, approximately 4 cm to 6 cm. Color.About reddish brown (C30,M80,Y80,K30). Apex shape.Acuminate. Way of growing.Adhesion. Position in relation to stem.Adpressed with divergent tip. Leaf blade: Color in spring.About tender yellow (Y100,C10,M5,B0). Color in summer.About yellow-green (Y100,C20,M10,B0). Color in autumn.About golden (Y100,C0,M40,B0). Depth of young leaf color.Medium. Length.Medium, approximately 5 cm to 8 cm. Width.Medium, approximately 4 cm to 8 cm. Ratio of midrib length to maximum width of blade.0.9-1.1. Anthocyanin in the middle vein of the upper surface.Present. Distribution of anthocyanin in middle vein of upper surface.From base to middle. Anthocyanin intensity of upper surface midvein.Medium. Angle between midrib and second first lateral vein at lower end.Approximately 40-49. Upper surface villus distribution.Absent. Lower surface villus distribution.Absent. Surface profile.Flat. Degree of concavity and convexity between veins.Weak. Base shape.Broad wedge. Shape at the junction with petiole.Micro concave. Type of tip.Short tail tip. Lobes.Absent. Margins.Regular small serrations with no lobes. Petiole: Color.About red (Y100,M100,C20,K0). Length.Medium, approximately 6 cm to 8 cm. Ratio of petiole length to main vein length.0.51-0.60. Sectional shape in middle.Ellipse. Floss.Absent. Upper surface color.About red. Main shoot: Time of termination of growth.Early. Resistance: Insect resistance.Medium. The new variety Gold Poplar has shown insect resistance to Anoplophora glabripennis motsch (Anoplopora glabripennis), Poplar hairy aphid (Chaitophorus populeti) and Fall webworm (Hyphantria cunea). Disease resistance.Gold Poplar has moderate resistance to black spot disease (Marssonina castagne), Poplar canker disease (Botryosphaeria ribis), and Poplar leaf rust disease (Melampsora larici-populina Kleb).