<i>Rubus </i>plant named ‘BT RASFIVE’

Abstract

A new and distinct cultivar of Rubus plant named BT RASFIVE is disclosed, characterized by a very early primocane fruit period. Plants produce high to very high cane branching with a bushy semi-erect architecture and have a low chill requirement. Fruits are very firm and easy to store with a stable firmness after harvest. The new variety is a Rubus, normally produced as an outdoor garden or container plant.

Claims

1. A new and distinct cultivar of Rubus plant named BT RASFIVE as herein illustrated and described.

Description

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

(1) The photographs were taken using conventional techniques and although colors may appear different from actual colors due to light reflectance it is as accurate as possible by conventional photographic techniques. Colors in the photographs may appear to differ slightly from the color values cited in the botanical description, which accurately describe the colors.

(2) FIG. 1 illustrates in full color a typical ripe and unripe fruit still on the plant of the new variety.

(3) FIG. 2 illustrates in full color a typical fruiting plant of BT RASFIVE. Age of the plant is approximately 1 year, grown in a poly hoop house.

DETAILED BOTANICAL DESCRIPTION

(4) In the following description, color references are made to The Royal Horticultural Society Colour Chart 2007 except where general terms of ordinary dictionary significance are used. The following observations and measurements describe BT RASFIVE plants which were grown in Levico Terme, Trento, Italy. Plants were grown in a season tunnel, given approximately 30% shading during Summer. The growing temperature ranged from about 15? C. to 34? C. during the day and from about 8? C. to 22? C. during the night. Measurements and numerical values represent averages of typical plant types. Plants are approximately 1 year old. Botanical classification: Rubus idaeus BT RASFIVE.

PROPAGATION

(5) Time to initiate roots: About 35 days at approximately 16? C. Time to produce a rooted cutting: About 45 days at 18 ? C.

PLANT

(6) Age of plant described: About 1 year. Plant spread: Approximately 90 cm. Plant height: Approximately 150 cm. Habit: Semi-upright. Primocane length: Approx. 160 cm. Primocane color: Near RHS Yellow-Green N150B. Anthocyanin coloration present: Not typical. Dormant cane color: Near RHS Grey-Brown 199C. Primocane diameter: Average 1 cm. Internode length: Average 5 cm. Spines: Approximately density/quantity of spines.Approximately 3 per 4 per cm of stem length at 1 meter of height. Length.Average range 2 to 3 mm. Color.Near RHS Brown N200B. Shape.Deltate.

FOLIAGE

(7) Leaf: Arrangement.Compound opposite. Quantity.9-10 per stem. Average length.Approximately 17 to 18 cm. Average width.Approximately 16 to 17 cm. Leaflet: Quantity.Most common quantity of leaflets per leaf: 3. Average length.Approximately 13-17 cm. Average width.Approximately 8-11 cm. Shape of blade.Overall broad deltate to ovate. Apex.Acuminate. Base.Broad rounded. Margin.Double serrate. Texture of top surface.Coriaceous. Texture of bottom surface.Coriaceous. Pubescence.Very little. Leaf internode length.5-7 cm. Color.Young foliage upper side: Near RHS Yellow-Green 144B. Young foliage under side: Near RHS Green 142C. Mature foliage upper side: Near RHS Green 143A. Mature foliage under side: Near RHS Green 134B. Venation.Type: Cross veniculate, pinnate along main axis. Venation color upper side: Near Yellow-Green 144C. Venation color under side: Near Yellow-Green 144D. Petiole.Length: 7 cm. Width: 3 mm. Color: Near RHS Yellow-Green N144C. Texture: Glabrous. Rachis.Length: 12-13 cm. Width: 3-4 mm. Color: Near RHS Yellow-Green N144C. Texture: Glabrous. Stipules.Not observed.

FLOWER

(8) Floral bud burst date: Approximately July 1 for primocane flowers. Flowering season: Begins around July 15 in Verona, Italy. Inflorescence: Flowers per.15-24. Flower size: Diameter.Approximately 2 cm. Length.Approximately 1 cm. Peduncle: Length.5 cm. Diameter.2 mm. Color.Near RHS Yellow-Green N144B. Texture.Glabrous. Pedicel: Length.1.3 cm. Diameter.2 mm. Color.Near RHS Yellow-Green N144B. Texture.Glabrous. Petals: Petal arrangement.Rotate. Length.9 mm. Width.5 mm. Shape.Semi-cuneate. Margin.Entire. Apex.Rounded. Base.Rounded. Petal quantity.5. Texture.Glabrous. Color: Petals.When opening: Upper surface: Near RHS White N155B. Lower surface: Near RHS White N155B. Fully opened: Upper surface: Near RHS White N155B. Lower surface: Near RHS White N155B. Bud: Shape.Ovate. Length.Approximately 6 mm. Diameter.Approximately 4 mm. Color.Near RHS Yellow-Green 144B. Sepals: Length.1.5 cm. Width.6 mm. Shape.Narrow deltate with apiculate apex. Color.Interior Surface: Near RHS Green 140C. Exterior Surface: Near RHS Green 141B. Texture.Glabrous.

REPRODUCTIVE ORGANS

(9) Androecium: Stamens: Number.120. Filament length.Approximately 6 mm. Filament color.Near RHS Green-White 157A. Anthers: Length.0.8 mm. Shape.Ovate. Color.Near RHS Greyed-Orange 164A. Pollen.Quantity: Abundant. Color: Near RHS White N155C. Pistil: Number.120 to 130. Length.Approximately 4.5 mm. Style.Length: Approximately 4 mm. Color: Near RHS Green-White 157A.

FRUIT

(10) Market use: Fresh consumption. Length: 4 cm. Diameter: 3 cm. General shape in lateral view: Conical-round. Color: Near RHS Red 45B, 45C and 45D, darkest coloration near fruit distal end. Average drupelets per berry: 150. Average weight per berry: 5.5 grams Fruit bearing on floricane/primocane or both: Both Fruit begins ripening: Primocane about July 20; floricane about April 15.sup.th. Fruiting season: Primocane about mid-July to mid-October; floricane end of May to end of June. Yield per hectare: 20 to 25 ton/ha in primocane; 15 to 18 ton/ha in floricane Other fruit characteristics: Very stable color and firmness post-harvest. Shelf life of about one week at 4? C. without loss of quality.

OTHER CHARACTERISTICS

(11) Disease/pest resistance: Observed good tolerance for raspberry aphid, Amphorophora idaei and leafhoppers, Edwardsiana rosae. No observed resistance nor susceptibility to normal diseases of Rubus. Temperature tolerance: Maximum 36? C. during pollination and harvest.