Patent Publication Number: US-PP15802-P3

Title: Petunia plant named ‘Sunpimo’

Description:
Botanical/commercial classification:  Petunia hybrida/Petunia  Plant. 
   Varietal denomination: cv. ‘Sunpimo’. 
   BACKGROUND OF THE VARIETY 
   The present invention relates to a new and distinct variety of  Petunia  plant that originated from the crossing a seedling called ‘5Pt-30-1’ as female parent and a wild type  Petunia  plant named ‘1796’ as male parent that is native to Brazil. 
   The  Petunia  is a very popular plant that is used for flower bedding and potting in the summer season. There are only a few  Petunia  varieties which do not have an upright growth habit and which have a high resistance to rain, heat, and diseases. The  Petunia  plants such as ‘Revolution Purple Pink’ (U.S. Plant Pat. No. 6,915), ‘Revolution Brilliant Pink’ (U.S. Plant Pat. No. 6,914), ‘Revolution Brilliant Pink-Mini’ (U.S. Plant Pat. No. 6,899), and ‘Revolution Blue Vein’ (U.S. Plant Pat. No. 9,322)) are decumbent type plants having long stems, a low plant height, abundant branching, and a high resistance to heat, rain and disease. However, there are only a few  Petunia  varieties having a great profusion of flowers, softly colored flower petals and a high resistance to rain, heat, and diseases. Accordingly, this invention is aimed at obtaining a new  Petunia  variety having vivid reddish-purple petals with a light pink center together with the above features. 
   The ‘5Pt-30-1’ female parent is a strain selected in Japan from a seedling named ‘Baccarat Pink’ (non-patented in the United States). 
   In April 1998, crossing of ‘5Pt-30-1’ as female parent and ‘1796’ as pollen parent was conducted at the Omi R&amp;D Center, Flower Division of Suntory Ltd. In January 1999, 120 seedlings were obtained from that crossing. These seedlings were grown in pots in glasshouses and were evaluated. One new variety was selected in view of its decumbent growth habit and its attractive flower color. That seedling was propagated by the use of cuttings from July 1999, and a further evaluation was carried out by flower potting and bedding in March 2000, at the Omi R&amp;D Center, Flower Division of Suntory Ltd. The botanical characteristics of that plant were then examined, using the similar varieties ‘Revolution Pink-Mini’ and ‘Sunpapi’ (non-patented in the United States) for comparison. As a result, it was concluded that this  Petunia  plant is distinguishable from all other varieties, whose existence is known to us, and is uniform and stable in its characteristics. The new variety of  Petunia  plant of the present invention was named ‘Sunpimo’. 
   In the following description, the color-coding is in accordance with The R.H.S. Colour Chart of The Royal Horticultural Society, London, England. A color chart based on The Japan Color Standard for Horticultural Plants (J.H.S. Color Chart) is also added for reference. 
   The main botanical characteristics of the ‘5Pt-30-1’ female parent are as follows:
     Plant:
             Growth habit.— Medium.     Plant height.— Approximately 15.5 cm.     Spreading area of plant.— Somewhat small.     Blooming period.— April to July in the southern Kanto area, Japan.       
       Stem:
             Length.— Approximately 13.5 cm.     Thickness.— Main stem approximately 2.0 mm.     Pubescence.— Normal.     Branching.— Medium.     Length of internode.— Approximately 2.5 cm.     Color.— Light yellow-green (R.H.S. 145C, J.H.S. 3503).       
       Leaf:
             Shape.— Elliptic. The apex shape is acute, and the base shape is attenuate.     Length.— Approximately 3.8 cm.     Width.— Approximately 2.0 cm.     Color.— Upper-side is dark olive-green (R.H.S. 137A, J.H.S. 3707). Lower-side is moderate yellow-green (R.H.S. 147B, J.H.S. 3513).     Pubescence.— Sparse.       
       Flower:
             Facing direction.— Upward.     Type.— Single.     Shape.— Funnel-shaped, with five fissures.     Shape of petal tip.— Round.     Lobation.— Shallow.     Waviness of petal.— Somewhat weak.     Diameter.— Approximately 5.5 cm.     Color.— Petal: vivid reddish-purple (R.H.S. 74A, J.H.S. 9207) with pale purplish-pink center (R.H.S. 65D, J.H.S. 8902). Base color of the corolla throat: yellowish-white (R.H.S. 1D, J.H.S. 3102). Outside color of the corolla tube: yellowish-white (R.H.S. 1D, J.H.S. 3101).     Reproductive organs.— 1 normal pistil and 5 normal stamens. Color of pistil is vivid yellow-green (R.H.S. 144B, J.H.S. 3506). Color of stamens is yellowish-white (R.H.S. 155D, J.H.S. 2501).     Peduncle.— Approximately 1.3 mm in thickness, and approximately 2.0 cm in length.     Physiological and ecological characteristics.— Strong resistance to cold, rain, pests and disease. Moderate resistance to heat.       
       

   The main botanical characteristics of the ‘1796’ male parent are as follows:
     Plant:
             Growth habit.— Decumbent.     Plant height.— Approximately 5.5 cm.     Spreading area of plant.— Large.     Blooming period.— May to August in the southern Kanto area, Japan.       
       Stem:
             Length.— Approximately 16.0 cm.     Thickness.— Approximately 1.5 mm.     Pubescence.— Normal.     Branching.— Abundant.     Length of internode.— Approximately 1.5 cm.     Color.— Light yellow-green (R.H.S. 145C, J.H.S. 3503).       
       Leaf:
             Shape.— Elliptic. The apex is acute, and the base is attenuate.     Length.— Approximately 2.7 cm.     Width.— Approximately 1.7 cm.     Color.— Upper-side is strong yellow-green (R.H.S. 143A, J.H.S. 3711). Lower-side is moderate yellow-green (R.H.S. 147B, J.H.S. 3513).     Pubescence.— Sparse.       
       Flower:
             Facing direction.— Slanted upward.     Type.— Single.     Shape.— Funnel-shaped, with five fissures.     Shape of petal tip.— Round.     Lobation.— Shallow.     Waviness of petal.— Weak.     Diameter.— Approximately 4.1 cm.     Color.— Petal: vivid reddish-purple (R.H.S. 74B, J.H.S. 9206). Base of the corolla; throat: yellowish-white (R.H.S. 159D, J.H.S. 1901). Outside of the corolla tube: yellowish-white (R.H.S. 159D, J.H.S. 1901).     Reproductive organs.— 1 normal pistil and 5 normal stamens. Color of pistil is vivid yellow-green (R.H.S. 144B, J.H.S. 3506). Color of the stamens is yellowish-white (R.H.S. 155D, J.H.S. 2501).     Peduncle.— Approximately 1.1 mm in thickness, and approximately 1.8 cm in length.     Physiological and ecological characteristics.— Moderate resistance to pests. Strong resistance to rain, cold, heat and diseases.       
       

   The main botanical characteristics of the similar ‘Revolution Pink-Mini’ variety used for comparison are as follows:
     Plant:
             Growth habit.— Decumbent.     Plant height.— Approximately 20 cm.     Spreading area of plant.— Large.     Blooming period.— May to August in the southern Kanto area, Japan.       
       Stem:
             Length.— Approximately 15 cm.     Thickness.— Main stem is approximately 2.5 mm.     Pubescence.— Normal.     Branching.— Abundant.     Length of internode.— Approximately 2.0 cm.     Color.— Light yellow-green (R.H.S. 145C, J.H.S. 3503).       
       Leaf:
             Shape.— Elliptic. The apex shape is acute, and the base shape is attenuate.     Length.— Approximately 5.0 cm.     Width.— Approximately 3.0 cm.     Color.— Upper-side is dark olive green (R.H.S. 137A, J.H.S. 3509). Lower-side is moderate yellow-green (R.H.S. 147B, J.H.S. 3513).     Pubescence.— Normal.       
       Flower:
             Facing direction.— Slanted upward.     Type.— Single.     Shape.— Funnel-shaped, with five fissures.     Shape of petal tip.— Round.     Lobation.— Shallow.     Waviness of petal.— Weak.     Diameter.— Approximately 4.5 cm.     Color.— Petal: Vivid reddish-purple (R.H.S. 71D, J.H.S. 9206). Base of the corolla throat is pinkish-white (R.H.S. 69D, J.H.S. 9201). Outside of the corolla tube is strong purplish-pink (R.H.S. 73B, J.H.S. 9204).     Reproductive organs.— 1 normal pistil and 5 normal stamens. Color of pistil is vivid yellow-green (R.H.S. 144B, J.H.S. 3506). Color of the stamens is yellowish-white (R.H.S. 155D, J.H.S. 2501).     Peduncle.— Approximately 1.0 mm in thickness, and approximately 2.0 cm in length.     Physiological and ecological characteristics.— Strong resistance to cold, heat, rain and diseases. Moderate resistance to pests.       
       

   The main botanical characteristics of the similar ‘Sunpapi’ variety used for comparison are as follows:
     Plant:
             Growth habit.— Decumbent.     Plant height.— Approximately 11.5 cm.     Spreading area of plant.— Large.     Blooming period.— April to September in the southern Kanto area, Japan.       
       Stem:
             Length.— Approximately 18.0 cm.     Thickness.— Main stem approximately 3.2 mm.     Pubescence.— Normal.     Branching.— Many.     Length of internode.— Approximately 2.2 cm.     Color.— Light yellow-green (R.H.S. 145C, J.H.S. 3503).       
       Leaf:
             Shape.— Lanceolate. The apex is acute, and the base is attenuate.     Length.— Approximately 6.1 cm.     Width.— Approximately 2.7 cm.     Color.— Upper-side is dark olive-green (R.H.S. 137A, J.H.S. 3707). Lower-side is moderate yellow-green (R.H.S. 147B, J.H.S. 3513).     Pubescence.— Normal.       
       Flower:
             Facing direction.— Slanted upward.     Type.— Single.     Shape.— Funnel-shaped, with five fissures.     Shape of petal tip.— Obtuse.     Lobation.— Shallow.     Waviness of petal.— Weak.     Diameter.— Approximately 6 cm.     Color.— Petal: deep purplish-pink (R.H.S. 68B, J.H.S. 9205). Base of the corolla throat: yellowish-white (R.H.S. 159D, J.H.S. 1901). Outside of the corolla tube: yellowish-white (R.H.S. 159D, J.H.S. 1901).     Reproductive organs.— 1 normal pistil and 5 normal stamens. Color of pistil is vivid yellow-green (R.H.S. 144B, J.H.S. 3506). Color of the stamens is yellowish-white (R.H.S. 155D, J.H.S. 2501).     Peduncle.— Approximately 1.4 mm in thickness, and approximately 1.8 cm in length.     Physiological and ecological characteristics.— Strong resistance to cold, heat, rain and diseases. Moderate resistance to pests.       
       

   SUMMARY OF THE VARIETY 
   The new variety of the  Petunia  plant has a decumbent growth habit, and abundant branching and a great profusion of blooms with the entire plant remaining in bloom for a considerable period of time. The flowers are single and small in size. The petal color is vivid reddish-purple with a light pink center. The plant has a high resistance to rain, cold, heat and diseases. 
   The plants described and depicted herein were propagated by the use of cuttings and were approximately seven months of age. The plants were grown in 30 cm pots and were grown outdoors from April to September and were observed during September. The plants received approximately 100 ppm of nitrogen content fertilizer each week. 

   
     BRIEF DESCRIPTION OF THE PHOTOGRAPHS 
       FIG. 1  shows the overall growth habit of the new  Petunia  plant ‘Sunpimo’ while flowering. 
       FIG. 2  shows a close view of a typical flower of the new  Petunia  plant ‘Sunpimo’. 
   

   DESCRIPTION OF THE NEW VARIETY 
   The botanical characteristics of the new and distinct variety of  Petunia  plant named ‘Sunpimo’ are as follows when observed during September at Koukaichi-shi, Shiga-ken, Japan at an age of approximately seven months.
     Plant:
             Growth habit.— Decumbent.     Plant height.— Approximately 18 cm.     Spreading area of plant.— Large.     Blooming period.— Early April to late October in the southern Kanto area, Japan. The plant shape does not change throughout this period. A typical flower commonly lasts approximately 5 days on the plant when experiencing a temperature of approximately 20° C.       
       Stem:
             Length.— Approximately 12 cm.     Thickness.— Approximately 1.5 mm.     Pubescence.— Somewhat dense.     Branching.— Abundant.     Length of internode.— Approximately 2.5 cm.     Color.— Light yellow-green (R.H.S. 145C, J.H.S. 3503).       
       Leaf:
             Shape.— Slightly lanceolate. The apex is acute, and the base is attenuate.     Length.— Approximately 4.0 cm.     Width.— Approximately 2.0 cm.     Color.— Upper side is moderate olive-green (R.H.S. 146A, J.H.S. 3508). Lower side is moderate yellow-green (R.H.S. 137C, J.H.S. 3513).     Thickness.— Approximately 0.8 mm.     Texture.— Smooth.     Margins.— Entire.     Pubescence.— Sparse.     Venation.— Pinnate and R.H.S. 145B in coloration.       
       Flower:
             Facing direction.— Slanted upward.     Type.— Single.     Shape.— Funnel-shaped, with five fissures.     Shape of petal tip.— Round.     Lobation.— Shallow.     Waviness of petal.— Slight as illustrated in FIG.  2 .     Diameter.— Approximately 4.5 cm.     Color.— Petal: vivid reddish-purple (R.H.S. 74B, J.H.S. 9206) with a light pink center (R.H.S. 65B J.H.S. 9203). Base of the corolla throat: yellowish-white (R.H.S. 1D, J.H.S. 3102). Outside of the corolla tube: yellowish-white (R.H.S. 1D, J.H.S. 3102).     Venation.— Generally radiates outwardly from the center and near R.H.S. 145A in coloration. (See FIG.  2 ).     Sepals.— R.H.S. 146A on the upper surface and R.H.S. 147B on the lower surface, generally lanceolate in configuration, with an entire margin, approximately 1.5 cm in length, and approximately 3 mm in width at the widest point, and five in number. The calyx is tubular and divides into five sepals.     Reproductive organs.— 1 normal pistil and 5 normal stamens. Color of pistil is vivid yellow-green (R.H.S. 144B, J.H.S. 3506). Color of the stamens is yellowish-white (near R.H.S. 155D, J.H.S. 2501). The stigma is elliptical in configuration, R.H.S. 146D in coloration, and approximately 1 to 1.5 mm in length. The style is approximately 1.5 cm in length and R.H.S. 145C in coloration. The ovary is R.H.S. 143B in coloration. Pollen is formed in a quantity that is typical of  Petunia hybrida  and is R.H.S. 11D in coloration.     Peduncle.— Approximately 1 mm in diameter and approximately 2 cm in length, and R.H.S. 146B in coloration. The texture is smooth.     Seeds.— R.H.S. 200B in coloration, approximately 0.7 mm in diameter, and generally round. The quantity is typical of  Petunia hybrida.        Physiological and ecological characteristics.— High resistance to rain, cold, heat and diseases. Moderate resistance to pests.       
       

   This new variety of  Petunia  plant is most suitable for flower bedding and potting, particularly in hanging pots or in planters, and is excellent for use as a ground cover. Pinching of old blossoms will enhance the formation of new blossoms.