Kentucky bluegrass designated ‘Ba81-227’

Details Kentucky bluegrass designated ‘Ba81-227’ Kentucky bluegrass designated ‘Ba81-227’

2000-11-10

2002-03-05

Campell, Bruce R. (Department: 1661)

Plants

Grass

Recreational turf or pasture grass

Plant Patent

active

PP012435

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a new and distinct variety of
Poa pratensis
that has been designated ‘Ba81-227’ Kentucky bluegrass.
2. Description of Related Art
Kentucky Bluegrasses have been disclosed in U.S. Plant Pat. No. 3,150, issued May 2, 1972; U.S. Plant Pat. No. 3,156, issued May 9, 1972; U.S. Plant Pat. No. 3,186, issued May 23, 1972; U.S. Plant Pat. No. 4,336, issued Nov. 28, 1978; U.S. Plant Pat. No. 6,280, issued Sep. 6, 1988; U.S. Plant Pat. No. 6,537 and 6,538, issued on Jan. 17, 1989; U.S. Plant Pat. No. 6,585, issued Feb. 7, 1989; U.S. Plant Pat. No. 7,831, issued Mar. 17, 1992; U.S. Plant Pat. No. 8,490, issued Dec. 7, 1993; U.S. Plant Pat. No. 9,036, issued Jan. 3, 1995; U.S. Plant Pat. No. 9,290, issued Jul. 18, 1995; U.S. Plant Pat. No. 9,611, issued Jul. 23, 1996; U.S. Plant Pat. No. 9,848, issued Apr. 1, 1997; U.S. Plant Pat. No. 9,977, issued Jul. 22, 1997; U.S. Plant Pat. No. 10,080, issued Oct. 21, 1997; U.S. Plant Pat. No. 10,081, issued Oct. 21, 1997; U.S. Plant Pat. No. 10,384, issued May 5, 1998; U.S. Plant Pat. No. 10,925, issued May 25, 1999; U.S. Plant Pat. No. 11,520, issued Sep. 26, 2000; U.S. Plant Pat. No. 11,536, issued Oct. 3, 2000; and pending U.S. Plant patent application Ser. No. 09/120,718, filed Jul. 22, 1998, as well as U.S. Plant patent application Ser. No. 09/578,128, filed May 24, 2000.
SUMMARY OF THE VARIETY
‘Ba81-227’ plant material originated from a single plant that was a progeny resulting from crossing ‘Ba79-127’ Kentucky bluegrass, as the seed parent, with ‘Ba79-129’ Kentucky bluegrass, as the pollen parent.
‘Ba79-127’ Kentucky bluegrass is an unreleased, unpatented Kentucky bluegrass plant grown and maintained in the plant nursery at the Scotts Company in Marysville, Ohio and was derived from a plant selected from ‘Newport’ Kentucky bluegrass. ‘Ba79-129’ Kentucky bluegrass is an unreleased, unpatented Kentucky blue grass plant grown and maintained in the plant nursery at the Scotts Company in Marysville, Ohio and was derived from a plant selected from ‘Vantage’ Kentucky bluegrass.
As a result of this breeding, a distinct variety was produced and asexually propagated by rhizomes, tillers and disseminules. The highly apomictic seed of ‘Ba81-227’ Kentucky bluegrass was produced first at Marysville, Ohio, and later at Gervais, Oreg. This seed was used to plant turf performance evaluation trials and later, seed production fields.
The seed of ‘Ba81-227’ has been found to be stable. Asexual production of ‘Ba81-227’ initially was performed at Marysville, Ohio by propagules (tillers and rhizomes) and by disseminules (modified caryopses produced by apomixis), and has consistently produced progeny plants indistinguishable from the first generation asexual reproductions of the instant plant. The apomixis level of ‘Ba81-227’ is approximately 94.0% (plus or minus 3.7%). The apoximis level was determined by examining seedling characteristics of approximately 75 to 150 seedlings from seven different crop years in a growth chamber and any seedling with one or more characteristics different from ‘Ba81-227’ seedlings was classified as not being of apomictic origin.
‘Ba81-227’ has a number of highly desirable characteristics, including a medium to high level of resistance to
Drechslera poae
that causes melting out and leaf spot; a medium to high level of resistance to
Magnaporthe poae
that causes summer patch; a medium to high level of resistance to
Ustilago striiformis
that causes stripe smut, a medium level of resistance to
Erysiphe graminis
that causes powdery mildew, a medium to high level of resistance to
Puccinia graminis
that causes stem rust, and a medium to high level of resistance to
Puccinia coronata
that causes crown rust. ‘Ba81-227’ has an attractive leafy turf type, and a medium green color which can be maintained throughout the entire growing season. ‘Ba81-227’ provides good sod strength and good tolerance to wear. ‘Ba81-227’ demonstrates good fall color and good winter color under mild winter conditions.
‘Ba81-227’ is an overall good turfgrass performer as evidenced by good scores for quality and color throughout the cool season in turfgrass growing regions of the United States. ‘Ba81-227’ has a medium to high seed yield potential in the bluegrass seed production region of the northwestern United States.
In comparison with other Kentucky bluegrass varieties, ‘Ba81-227’ has a larger seed (longer and wider) with a lower number of seeds per pound. The vegetative leaves of unmowed mature plants of ‘Ba81-227’ Kentucky bluegrass are thicker with longer ligules and with fewer hairs on the upper margin of the ligule, collar margin and dorsal side of the leaf sheath than other Kentucky bluegrasses. The culm is longer with a longer top internode than other Kentucky bluegrass varieties.


REFERENCES:
patent: PP3150 (1972-05-01), Pepin et al.
patent: PP3156 (1972-05-01), Fuchigami et al.
patent: PP3186 (1972-05-01), Barenbrug et al.
patent: PP4336 (1978-11-01), Mayer et al.
patent: PP6280 (1988-09-01), Meier et al.
patent: PP6537 (1989-01-01), Meier et al.
patent: PP6538 (1989-01-01), Meier et al.
patent: PP6585 (1989-02-01), Meier et al.
patent: PP7831 (1992-03-01), Meier et al.
patent: PP8490 (1993-12-01), Meier et al.
patent: PP9036 (1995-01-01), Meier et al.
patent: PP9209 (1995-07-01), Meier et al.
patent: PP9611 (1996-07-01), Meier
patent: PP9848 (1997-04-01), Meier et al.
patent: PP9977 (1997-07-01), Meier et al.
patent: PP10080 (1997-10-01), Meier et al.
patent: PP10081 (1997-10-01), Meier et al.
patent: PP10384 (1998-05-01), Meier et al.
patent: PP10925 (1999-05-01), Meier et al.
patent: PP11520 (2000-09-01), Meier et al.
patent: PP11536 (2000-10-01), Meier et al.

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