AU678140B2 - Stenotaphrum secundatum grass plant ST-2691 - Google Patents

Description

P/00/01i1 28/5191 Regulation 3.2

AUSTRALIA

Patents Act 1990

ORIGINAL

COMPLETE SPECIFICATION STANDARD PATENT Invention Title: STENOTAPHRUM SECUNDATUM GRASS PLAANT ST-2691 .Me following statement is a full description of this invention, including the best :iethod of performing it known to me:- 0.

Patent Application Of H.F.Whiting

SPECIFICATION

1 Title: STENOTAPHRUM SECUNDATUM GRASS PLANT ST-2691 2 The present invention and discovery relates to a new 3 and distinct variety of Stenotaphrum Secundatum grass plant, 4 which I developed through a cross-pollination of two selected varieties of Stenotaphrum Secundatum grass plants,identified 6 as ST-19 and a variety known as Seville. This cross-pollination 7 of ST-19 and Seville was done by me at Glasshouse Mountains, 8 Queensland. I collected seeds from this cross-pollination of 9 ST-19 and Seville and planted them out in germinating trays.

1 0 At about three months after germinating I selected one hundred 11 of the most rapidly growing seedlings, with the best colour and 12 soft texture characteristics. I broke off stolons from each 13 selection and transplanted each selection into fifteen diameter 14 containers. As these stolons grew and developed I once again 15 made further selections resulting in a final selection of ten 16 from the original one hundred seedlings. I further asexually 17 transplanted these ten selections into two meter by two meter 18 plots for further evaluation. Once these ten two meter square 9 plots became established through the spreading of the planted stolons I formed a turfgrass surface by fertilizing,watering 21 and mowing. The new claimed variety of Stenotaphrum Secundatum 22 grass plant is the final selection of those ten Fl generation 23 selections and which I have designated as ST-2691 This new 24 variety of Stenotaphrum Secundatum grass plant spreads very rapidly by stolons to produce a superior winter green colour 26 retention with a dense,soft,dark brilliant green coloured 27 surfacewhen compared to the closest known variety which is known 28 as Seville. During the continued asexual repoduction from 1 1 stolons I have confirmed that the above characteristics are 2 transmitted through succeeding propagations and I have confirmed 3 that the new claimed variety of Stenotaphrum Secundatum grass 4 plant has the unique combination of characteristics.

It is practical to repeat the invention, using current state of 6 the art techniques, to carry out the number of trials necessary 7 to achieve the result. The new and distinct variety of 8 Stenotaphrum Secundatum grass plant ST-2691 is illustrated in 9 the accompanying photographs, with the photographs of the closest 10 known variety of Stenotaphrum Secundatum grass plant known as 11 Seville. The most noticeable variations between the new claimed S 12 variety of Stenotaphrum Secundatum grass plant St-2691 and the 13 closest known variety of Stenotaphrum Secundatum grass plant 14 Seville, is that the new claimed variety retains a superior winter green colour, is soft textured with a brilliant dark 16 green general colour, and spreads very fast to form a dense 17 turfgrass surface, also ST-2691 has unique isoenzyme 18 electrophoresis banding patterns. The isoenzyme method used 19 was The standard method described in the "Crop Science Journal" of July-August,1984.

21 22 23 24 26 27 28 2 1 A detailed description of the new and distinct variety of 2 Stenotaphrum Secundatum grass plant ST-2691 is 3 An attractive deep yellow green colour, colour number 4 118 deep YG of the ISCC-NBS centroid colour chart.

The grass is low growing, with an upright erect growth 6 characteristic.

7 The grass spreads very rapidly by aboveground stolons, 8 forming a dense upright, uniform surface, with an extensive root system; stolons are a moderate yellow green colour, colour 10 number 120 m.YG of the ISCC-NBS centroid colour chart with 11 internode spacings of 4-5 centimeters apart.

12 Culms vary in height from 7-9 centimeters.

13 Leaves folded in bud shoot.

14 The leaf blade is flat and glabrous, bluntly obtuse.

15 The first mature leaf is 6-9 centimeters long.

16 The leaf blade is glabrous.

17 The ligule is a small ciliate fringe 0.5 millimeters in 18 height, with several short hairs just above the ligule on the 19 top side of the collar 1-2 millimeters long.

Auricles are absent.

21 The collar continuous,broad,narrowed to form a short stalk.

22 The sheath compressed ,keeled with several short hairs at 23 the top edge.

24 The entire plant is glabrous, except on the top inside edge of the collar, where several short hairs are present.

26 The inflorescence consists of a single spike of the 27 main stem.

28 The spike contains stigmas of pale yellow green colour, 3 1 colour number 121 p.YG of the ISCC-NBS centroid colour chart; 2 with stigma tips of deep reddish purple colour, colour number 3 238 deep rP of the ISCC-NBS centroid colour chart; the newly 4 formed anthers before dehiscence of light yellow colour, colour number 86 lY of the ISCC -NBS centroid colour chart.

6 A detailed description of the closest known variety of 7 Stenotaphrum Secundatum grass plant Seville is: 8 A moderate olive green colour, colour number 125 m.OL G of S 9 the ISCC-NBS centroid colour chart.

10 The grass is low growing,with and upright erect growth i characteristic.

12 The grass spreads by aboveground stolons,forming a dense 13 upright,surface, with an extensive root system; stolons 14 are a greyish yellow green colour, colour number 122 gy.YG 15 of the ISCC-NBS centroid colour chart, with internode spacings 16 of 4-5 centimeters apart.

17 Culms vary in height from 4-6 centimeters.

18 Leaves folded in bud shoot.

19 The leaf blade is flat and glabrous,bluntly obtuse.

The first mature leaf is 5-6 centimeters long.

21 The leaf blade is glabrous.

22 The ligule is a small ciliate fringe 1.0 millimeter 23 in height, with several short hairs just above the ligule 24 on the top side of the collar 1-2 millimeters long.

Auricles are absent.

26 The collar continous, broad narrowed to form a short 27 stalk.

28 The sheath compressed.keeled with several short hairs 4 1 2 3 4 6 7 8 9 at the top edge.

The entire plant is glabrous, except on the top inside edge of the collar, where several short hairs are present.

The inflorescence consists of a single spike of the main stem.

The spike contains stigmas of strong reddish purple colour, colour number 237.s.rP of the ISCC-NBS centroid colour chart; the newly formed anthers before dehiscence of light yellow colour, colour number 86.1.Y of the ISCC-NBS centroid colour chart.

a 11 12 13 14 16 17 18 19 21 22 23 24 26 27 28 IN THE DRAWINGS: FIG.1. Is a photograph of the inflorescence taken from the same test area, of the new claimed variety of Stenotaphrum Secundatum grass plant ST-2691 showing the stigmas of pale yellow green colour, colour number 121 p.YG of the ISCC-NBS centroid colour chart,with stigma tips of deep reddish purple colour, colour number 238 deep rP of the ISCC-NBS centroid colour chart; the newly formed anthers before dehiscence of light yellow colour, colour number 86.1.Y of the ISCC-NBS centroid colour chart FIG.2. Is a photograph of the inflorescence taken from the same test area, of the closest known variety of Stenotaphrum Secundatum grass plant Seville, showing the stigmas of strong reddish purple colour, colour number 237.s.rP of the ISCC-NBS centroid colour chart; the newly formed anthers before dehiscence of light yellow colour,colour number 86.1.Y of the ISCC-NBS centroid colour chart.

5 I FIG.3. Is a photograph of two stolons taken from the 2 same test area, this photograph shows the stolon on the top 3 in the photograph of the new claimed variety of Stenotaphrum 4 Secundatum grass plant ST-2691,showing the stolon colour a moderate yellow green colour, colour number 120 m.YG of the 6 ISCC-NBS centroid colour chart, with stolon internode spacings 7 farther apart,when compared to the stolon in the bottom of the 8 photograph which is the closest known variety Seville, with 9 a stolon colour of greyish yellow colour, colour number 10 122.gy.YG of the ISCC-NBS centroid colour chart, with stolon 1 internode spacings closer together.

12 FIG.4. This photograph shows the unique electrophuresis 13 zymogram patterns of the new claimed variety of Stenotaphrum 14 Secundatum grass plant ST-2691.

15 FIG.5. This photograph shows the electrophoresis 1. zymogram patterns of e closest known variety of Stenotaphrum 17 Secundatum grass plant Seville. Both photographs FIG.4. and 18 FIG.5. were taken from the same test area.

19 21 22 23 24 26 27 28 6 1 ABSTRACT OF THE DISCLOSURE 2 I disclose that my herein invention of a new and distinct 3 variety of Stenotaphrum Secundatum grass plant ST-2691, that was 4 discovered by me through a cross-pollination of selected varieties of Stenotaphrum Secundatum grass plants, then through 6 asexually repropagation selected the new and distinct ST-2691.

7 The new claimed variety is characterized by a superior winter 8 green colour retention, very fast establishment rate, with a 9 soft dense texture,and a brilliant green general colour, when 10 compared to the closest known variety of Stenotaphrum Secundatum 11 Seville.

12 13 14 16 S 17 REFERENCE 18 1. Lin Wu, H.Harivandi, James A.Harding and william B.Davis.

19 1984. Identification of Kentucky bluegrass cultivars with Esterase and Phosphoglucomutase Isoenzyme Markers, Crop Science 21 Vol. 24 July-August 1984 P.763-768; published in the "Crop 22 Science Journal" a publication of the American Society of 23 Agronomy. 677 South Segoe road, Madison, Wisconsin U.S.A.

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