1. Field of the Invention
The present invention relates to a new and distinct variety of Poa
pratensis that has been designated Ba 69-82 Kentucky Bluegrass.
2. Description of Related Art
Kentucky bluegrasses have been disclosed in 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. Nos. 6,537 and 6,538, issued 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 and pending U.S.
Plant patent application Ser. No. 08/308,699, filed Sep. 19, 1994, now
U.S. Plant Pat. No. 9,209.
Ba 69-82 Kentucky Bluegrass plants are a distinct variety which can be
produced and asexually propogated by rhizomes, tillers and disseminules.
The plants originated from random seed that germinated in the O. M. Scott
and Sons plant nursery and were allowed to grow in the nursery for a
period of one year. The seed and pollen parents of the random seed are
believed to come from a set of 88 plants collected from several locations
throughout the U.S.
Seed of Ba 69-82 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. Asexual production of
Ba 69-82 by propagules (tillers and rhizomes) and by disseminules
(modified caryopses produced by apomixis) has consistently produced
progeny plants indistinguishable from the mother plant. The apomixis level
of Ba 69-82 is approximately 99% based upon examining seedling
characteristics of approximately 100 to 150 seedlings from different crop
years in a growth chamber.
Ba 69-82 has a number of highly desirable characteristics including a high
level of resistance to Drechslera spp. that causes leaf spot, melting out
and crown rot; Laetisaria fuciformis that causes red thread; Schlerotinia
homoeocarpa that causes dollar spot; Puccinia spp. that causes several
types of rust infections; Erysiphe graminis that causes powdery mildew;
Leptosphaeria korrae that causes Necrotic ring spot and Ustilago
striiformis that causes stripe smut. Ba 69-82 has an attractive leafy turf
type growth habit, moderately wide leaf blades, attractive green color
which can be maintained throughout the entire growing season, good drought
and heat tolerance, and good turf performance as evidenced by consistently
high scores for quality, color and density.
In comparison with most commercially available varieties, Ba 69-82 produces
a small seed, has a short ligule and is late maturing. Under mowed
conditions, Ba 69-82 develops a moderately wide blade and high sod
strength. Ba 69-82 has a medium level of seed yield potential in the
bluegrass seed producing regions of the northwestern U.S.
FIG. 1 is a Ba 69-82 Kentucky Bluegrass plant at anthesis;
FIG. 2 is a Ba 69-82 Kentucky Bluegrass panicle at anthesis; and
FIG. 3 is a Ba 69-82 Kentucky Bluegrass seed.
Ba 69-82 Kentucky bluegrass (Poa pratensis L.) is perennial with creeping
rhizomes forming a dense turf. When plants overwinter in the field under
freezing temperatures and are then brought into the greenhouse during late
winter to continue growth undisturbed by clipping under moderate
temperatures (60°-80° F.), culms are erect averaging 31.9 cm
in length, 3.2 nodes per culm and the uppermost internode 7.2 cm in
length. The peduncle averages 21.0 cm in length, and 0.595 mm in width.
The vegetative leaf averages 21.9 mm in width, 0.279 mm in thickness and a
ligule length of 0.14 mm. An average quantity of ligule and leaf margin
hairs was observed. The flag leaf averages 4.3 cm in length, 3.2 mm in
width and 0.198 mm in thickness and a ligule length of 1.0 mm. The panicle
averages 67.4 mm in length, 46.6 mm in width and 8.8 whorls. The lowest
whorl averages 3.3 branches and the third whorl from the bottom of the
panicle 3.1 branches.
The spikelet at the tip of a branch in the lowest whorl averages 4.6 mm in
length, 2.3 mm in width, 3.2 florets and 2.8 mm and 3.1 mm for the outer
and inner glumes in length, respectively. A similar spikelet from the
third whorl from the bottom of the panicle averages 4.7 mm in length, 2.4
mm in width, 3.3 florets and 2.9 mm and 3.2 mm for the outer and inner
glumes in length, respectively. The hair content on the glumes average 2.2
and 2.2 for the outer and inner glumes on the lowest whorl, respectively,
and 2.1 and 3.3 on the outer and inner glumes on the third whorl,
respectively.
Ba 69-82 averaged significantly more hairs on the glumes on the third whorl
than most other grasses in the study. The seed of Ba 69-82 averages 2.77
mm in length, and 0.89 mm in width, 0.68 mm in rachilla length and
approximately 1,250,997 seeds per pound. The dorsal side of the lemma keel
contained an average population of hairs.
Comparisons of Ba 69-82 with other Kentucky Bluegrass varieties in terms of
seed dimensions and numbers per pound are shown in Tables 1 and 2 as
follows:
| TABLE 1 |
| ______________________________________ |
| Morphological Comparison of Seed and Rachilla Measurements |
| and Lemma Hair of Ba 69-82 and Other Kentucky Bluegrass |
| Varieties After Conditioning. |
| Seed |
| Length Width Rachilla |
| Lemma1 |
| Variety mm mm mm Hair |
| ______________________________________ |
| Ba 69-82 2.77 0.89 0.68 4.4 |
| Ba 73-540 2.77 0.86 0.70 4.7 |
| Abbey 2.97 0.89 0.80 3.8 |
| Adelphi 2.70 0.84 0.65 4.4 |
| America 2.40 0.68 0.68 2.8 |
| Baron 3.08 0.81 0.71 5.0 |
| Bristol 2.94 0.88 0.73 4.3 |
| Chateau 2.81 0.86 0.71 4.5 |
| Coventry 2.71 0.81 0.70 4.0 |
| Eclipse 2.77 0.83 0.68 3.5 |
| Georgetown 2.94 0.82 0.74 4.9 |
| Gnome 2.78 0.83 0.75 4.1 |
| Kelly 3.07 0.89 0.75 4.2 |
| Marquis 2.97 0.87 0.83 4.7 |
| Midnight 2.94 0.76 0.78 5.7 |
| Nassau 3.07 0.86 0.68 3.4 |
| Ram I 3.23 0.89 0.80 6.0 |
| Touchdown 2.93 0.88 0.71 4.6 |
| Victa 3.00 0.80 0.82 3.5 |
| LSD (.05) 0.16 0.05 0.13 0.86 |
| ______________________________________ |
| 1 Rating Scale: 0-9; 9 = abundant row of hairs along keel. |
| TABLE 2 |
| ______________________________________ |
| Comparison of Seed Numbers Per Pound of Ba 69-82 and Other |
| Kentucky Bluegrass Varieties After Conditioning |
| Variety Seeds per Pounds |
| ______________________________________ |
| Ba 69-82 1,250,997 |
| Ba 73-540 1,359,914 |
| Abbey 1,003,037 |
| Adelphi 1,383,976 |
| America 1,659,824 |
| Baron 1,051,693 |
| Bristol 1,270,821 |
| Chateau 1,300,105 |
| Coventry 1,246,200 |
| Eclipse 1,335,668 |
| Georgetown 1,431,000 |
| Gnome 1,017,641 |
| Kelly 921,166 |
| Marquis 1,054,642 |
| Midnight 1,227,000 |
| Nassau 1,127,130 |
| Ram 1 1,214,000 |
| Touchdown 1,211,000 |
| Victa 1,038,298 |
| ______________________________________ |
Since environmental conditions such as soil and climate may influence
morphological characteristics to some extent, comparisons of morphological
characteristics of Ba 69-82 were made with other Kentucky Bluegrass
varieties and the comparisons are set forth in the following Tables 3-8:
| TABLE 3 |
| ______________________________________ |
| Morphological Comparison of Panicles, Whorl Number and |
| Whorl Branches of Ba 69-82 and Other Kentucky Bluegrass |
| Varieties in the Greenhouse at Marysville, OH. |
| Panicles Number of |
| Whorl Branches |
| Nod- Length Width Num- Lower Third |
| Variety ding mm mm ber Whorl Whorl |
| ______________________________________ |
| Ba 69-82 1.5 67.4 46.6 8.8 3.3 3.1 |
| Ba 73-540 |
| 2.2 60.8 47.6 8.4 3.9 3.0 |
| Abbey 1.6 80.4 59.3 9.3 3.8 3.3 |
| Adelphi 1.8 106.8 76.4 10.0 3.6 3.0 |
| America 2.3 67.7 51.1 8.8 3.3 3.5 |
| Baron 2.2 92.6 71.0 10.0 3.4 2.8 |
| Bristol 2.0 85.5 61.5 8.4 2.8 2.7 |
| Chateau 2.9 65.2 57.3 8.5 3.3 2.8 |
| Coventry 2.5 64.0 54.2 8.4 3.3 2.5 |
| Eclipse 1.3 89.2 74.0 10.7 3.3 2.1 |
| Georgetown |
| 1.0 80.0 57.0 7.4 2.1 2.6 |
| Gnome 1.1 80.6 56.0 10.6 4.6 3.9 |
| Kelly 2.0 88.0 70.2 9.8 4.6 3.7 |
| Marquis 1.1 82.0 63.0 10.3 3.9 3.6 |
| Midnight 2.0 75.8 48.4 7.1 2.9 3.0 |
| Nassau 2.2 91.2 68.6 10.0 2.5 2.1 |
| Ram I 1.3 67.7 47.0 7.3 3.0 3.2 |
| Touchdown |
| 1.1 73.1 75.0 7.6 2.1 2.3 |
| Victa 1.7 74.9 58.3 10.0 4.7 3.5 |
| LSD (.05) |
| 0.68 7.35 8.62 0.66 0.72 0.50 |
| ______________________________________ |
| *Rating Scale: 1-9; 9 = most nodding |
| TABLE 4 |
| ______________________________________ |
| Morphological Comparison of Spikelets and Florets of Ba 69-82 |
| and Other Kentucky Bluegrass Varieties in the Greenhouse at |
| Marysville, OH. |
| Spikelet |
| Number of |
| Third Whorl |
| Florets |
| Lower Whorl Width Per Spikelet |
| Length Width Length |
| Num- Lower Third |
| Variety mm mm mm ber Whorl Whorl |
| ______________________________________ |
| Ba 69-82 4.6 2.3 2.7 2.4 3.2 3.3 |
| Ba 73-540 |
| 4.3 2.2 4.3 2.2 3.4 3.2 |
| Abbey 4.4 2.2 4.5 2.2 3.0 3.0 |
| Adelphi 4.6 2.2 4.8 2.2 4.4 4.4 |
| America 4.6 2.2 4.4 2.3 4.5 4.3 |
| Baron 5.4 2.8 5.4 3.1 4.0 4.2 |
| Bristol 4.9 2.4 5.0 2.5 4.2 4.5 |
| Chateau 4.4 2.4 4.4 2.4 3.4 3.5 |
| Coventry 4.4 2.2 4.5 2.4 3.2 3.5 |
| Eclipse 4.6 2.4 4.6 2.4 3.6 3.6 |
| Georgetown |
| 5.0 2.3 5.0 2.6 4.8 4.9 |
| Gnome 4.6 2.5 4.6 2.9 3.2 3.2 |
| Kelly 5.1 2.5 5.2 2.8 3.7 3.8 |
| Marquis 4.3 2.2 4.4 2.3 3.1 2.9 |
| Midnight 5.3 2.5 5.5 2.4 4.4 4.7 |
| Nassau 4.7 2.6 4.8 3.00 4.2 4.3 |
| Ram I 5.4 2.6 5.3 2.8 3.6 3.4 |
| Touchdown |
| 5.1 2.9 4.8 2.8 4.1 4.0 |
| Victa 4.5 2.5 4.5 2.4 3.3 3.2 |
| LSD (.05) |
| 0.41 0.35 0.38 0.35 0.58 0.53 |
| ______________________________________ |
| TABLE 5 |
| ______________________________________ |
| Morphological Comparison of Glumes of Ba 69-82 and Other |
| Kentucky Bluegrass Varieties in the Greenhouse |
| at Marysville, OH. |
| ______________________________________ |
| Glume Length (mm) |
| Outer Inner |
| Lowest Third Lowest |
| Third |
| Variety Whorl Whorl Whorl Whorl |
| ______________________________________ |
| Ba 69-82 2.8 2.9 3.1 3.2 |
| Ba 73-540 2.6 2.7 3.0 3.0 |
| Abbey 2.7 2.7 3.1 3.1 |
| Adelphi 2.7 2.6 3.0 3.1 |
| America 2.1 2.1 2.5 2.5 |
| Baron 3.1 3.2 3..6 3.7 |
| Bristol 2.8 3.0 3.3 3.4 |
| Chateau 2.8 2.9 3.1 3.2 |
| Coventry 2.7 2.8 3.1 3.1 |
| Eclipse 3.0 3.0 3.4 3.4 |
| Georgetown 2.8 2.8 3.1 3.1 |
| Gnome 2.8 2.9 3.3 3.3 |
| Kelly 3.0 3.1 3.4 3.5 |
| Marquis 2.8 2.7 3.1 3.1 |
| Midnight 2.6 2.6 3.0 3.1 |
| Nassau 2.6 2.7 2.9 3.0 |
| Ram I 2.9 3.0 3.6 3.5 |
| Touchdown 3.3 3.3 3.8 3.8 |
| Victa 2.8 2.7 3.1 3.1 |
| LSD (.05) 0.23 0.22 0.22 0.23 |
| ______________________________________ |
| Glume Hairs* |
| Lowest Whorl Third Whorl |
| Variety Outer Inner Outer Inner |
| ______________________________________ |
| Ba 69-82 2.2 2.2 2.1 3.1 |
| Ba 73-540 2.5 3.0 2.5 2.5 |
| Abbey 0.6 0.9 1.0 1.0 |
| Adelphi 0.6 2.7 1.1 1.9 |
| America 0.2 0.5 0.3 0.3 |
| Baron 4.8 4.4 4.2 4.6 |
| Bristol 1.0 2.2 0.8 2.2 |
| Chateau 1.5 2.6 2.0 1.8 |
| Coventry 1.5 2.7 1.6 2.4 |
| Eclipse 1.5 1.9 1.8 1.9 |
| Georgetown 1.7 2.7 1.2 2.5 |
| Gnome 1.0 1.9 1.2 1.6 |
| Kelly 1.3 1.5 1.1 0.8 |
| Marquis 0.9 1.1 1.7 1.8 |
| Midnight 1.8 2.8 1.0 2.4 |
| Nassau 2.1 2.6 4.2 4.4 |
| Ram I 1.1 2.3 0.7 1.2 |
| Touchdown 0.7 2.1 1.1 1.4 |
| Victa 0.8 1.1 1.1 1.3 |
| LSD (.05) 0.9 0.9 0.9 0.9 |
| ______________________________________ |
| *Rating Scale: 0-9; 9 = most hairs |
| TABLE 6 |
| ______________________________________ |
| Morphological comparison of Flag Leaf of Ba 69-82 and Other |
| Kentucky Bluegrass Varieties in the Greenhouse |
| at Marysville, OH. |
| ______________________________________ |
| Length |
| Width Thickness Leaf |
| Variety mm mm mm Angle1 |
| Curve2 |
| ______________________________________ |
| Ba 69-82 4.3 3.2 0.198 1.0 4.9 |
| Ba 73-540 3.8 2.9 0.206 1.0 4.9 |
| Abbey 3.8 3.4 0.145 2.7 4.1 |
| Adelphi 5.7 3.4 0.178 5.2 5.0 |
| America 4.3 2.6 0.211 4.6 5.0 |
| Baron 7.0 4.2 0.152 9.2 4.4 |
| Bristol 4.3 3.2 0.211 2.3 5.0 |
| Chateau 4.0 2.7 0.193 3.4 2.0 |
| Coventry 3.7 3.0 0.140 0.7 4.3 |
| Eclipse 3.9 3.2 0.193 8.7 5.0 |
| Georgetown |
| 5.7 2.8 0.221 1.9 5.0 |
| Gnome 4.5 3.5 0.185 4.3 5.0 |
| Kelly 4.8 4.1 0.178 3.1 4.4 |
| Marquis 5.5 3.6 0.241 2.7 4.6 |
| Midnight 3.8 2.6 0.189 1.1 5.0 |
| Nassau 6.0 3.7 0.191 5.9 4.7 |
| Ram I 3.4 3.1 0.191 1.0 4.8 |
| Touchdown 4.1 2.7 0.163 3.4 4.1 |
| Victa 3.9 3.7 0.267 2.1 4.6 |
| LSD (.05) 1.0 0.4 0.02 2.5 2.4 |
| ______________________________________ |
| Hairs3 |
| Ligule Leaf Sheath4 |
| Variety mm Margin Ligule |
| Color |
| ______________________________________ |
| Ba 69-82 1.0 0.1 2.5 1.7 |
| Ba 73-540 0.8 0.4 2.3 2.0 |
| Abbey 1.3 0.8 1.6 0.2 |
| Adelphi 1.1 1.8 1.6 0.4 |
| America 0.6 0.4 0.7 1.9 |
| Baron 1.2 1.0 3.8 2.6 |
| Bristol 0.6 0.4 1.9 2.0 |
| Chateau 0.9 1.1 3.1 0.3 |
| Coventry 0.9 0.8 1.7 2.0 |
| Eclipse 1.1 1.0 1.0 0.2 |
| Georgetown 0.6 0.6 2.0 2.0 |
| Gnome 0.8 0.9 3.2 1.5 |
| Kelly 1.5 1.1 2.5 2.2 |
| Marquis 0.8 0.5 3.8 1.5 |
| Midnight 0.4 0.4 0.3 2.0 |
| Nassau 1.1 2.6 2.4 0.8 |
| Ram I 0.7 0.5 1.3 2.0 |
| Touchdown 1.1 1.0 1.0 7.7 |
| Victa 1.3 1.0 0.8 0.5 |
| LSD (.05) 0.17 0.47 0.7 0.76 |
| ______________________________________ |
| 1 Degrees from the stem |
| 2 Rating Scale: 1-9; 1 = curves up; 5 = no curve; 9 = curves down |
| 3 Rating Scale: 0-9; 0 = none; 9 = many |
| 4 Rating Scale: 0-9; 0 = no color; dark purple |
| TABLE 7 |
| ______________________________________ |
| Morphological Comparison of Peduncles, Culms, Node Numbers |
| Per Culm and Internode Lenght of Ba 69-82 and Other Kentucky |
| Bluegrass Varieties in the Greenhouse at Marysville, OH. |
| Peduncle Peduncle Culm Nodes Top |
| Length Width Length |
| Per Internode |
| Variety cm mm cm Culm Length cm |
| ______________________________________ |
| Ba 69-82 21.0 0.595 31.9 3.2 7.2 |
| Ba 73-540 |
| 17.9 0.612 28.0 3.1 7.7 |
| Abbey 23.2 0.655 41.3 4.1 11.0 |
| Adelphi 24.5 0.665 40.0 4.0 10.4 |
| America 16.2 0.622 31.8 3.1 11.0 |
| Baron 34.0 0.701 52.8 4.2 12.8 |
| Bristol 22.9 0.734 43.5 4.0 12.6 |
| Chateau 20.7 0.607 38.9 4.4 9.9 |
| Coventry 19.6 0.487 34.7 4.5 7.9 |
| Eclipse 23.7 0.658 39.2 4.9 9.9 |
| Georgetown |
| 21.7 0.683 37.5 3.2 11.1 |
| Gnome 19.4 0.836 35.3 3.1 9.2 |
| Kelly 29.4 0.752 46.6 3.6 11.8 |
| Marquis 27.1 0.831 34.1 3.4 7.8 |
| Midnight 20.5 0.722 29.5 2.8 7.6 |
| Nassau 25.0 0.663 36.0 3.9 7.4 |
| Ram I 22.2 0.694 30.5 2.5 6.6 |
| Touchdown |
| 23.6 0.519 38.0 4.0 8.4 |
| Victa 21.2 0.808 37.9 3.7 10.3 |
| LSD (.05) |
| 3.2 0.08 3.3 0.4 1.9 |
| ______________________________________ |
| TABLE 8 |
| ______________________________________ |
| Morphological Comparison of Vegetative Leaves of Ba 69-82 |
| and Other Bluegrass Varieties in the Greenhouse at |
| Marysville, Ohio. |
| ______________________________________ |
| Length |
| Width Thickness Leaf |
| Variety mm mm mm Angle1 |
| Curve2 |
| ______________________________________ |
| Ba 69-82 21.9 3.5 0.279 51.7 8.3 |
| Ba 73-540 18.1 3.5 0.300 53.0 6.2 |
| Abbey 20.7 3.6 0.277 51.3 7.4 |
| Adelphi 19.4 3.7 0.279 67.0 4.6 |
| America 21.4 3.1 0.325 66.0 6.4 |
| Baron 18.2 4.3 0.290 35.0 4.4 |
| Bristol 18.2 3.7 0.320 65.5 6.9 |
| Chateau 23.1 3.3 0.328 39.7 5.4 |
| Coventry 23.4 3.6 0.249 63.0 7.3 |
| Eclipse 20.3 4.4 0.302 65.5 5.4 |
| Georgetown |
| 19.5 3.6 0.287 56.7 5.8 |
| Gnome 18.2 2.9 0.290 43.2 6.6 |
| Kelly 22.8 3.9 0.300 55.5 7.0 |
| Marquis 19.7 3.7 0.376 46.8 7.8 |
| Midnight 19.5 3.5 0.310 63.3 5.0 |
| Nassau 16.3 3.7 0.292 63.2 4.9 |
| Ram I 19.1 3.6 0.271 70.8 6.5 |
| Touchdown 16.7 3.7 0.243 51.3 4.0 |
| Victa 21.5 3.6 0.360 56.3 6.7 |
| LSD (.05) 3.5 0.43 0.04 15.9 1.5 |
| ______________________________________ |
| Hairs3 |
| Ligule Leaf Leaf Sheath |
| Variety mm Ligule Margin |
| Roughness4 |
| Color5 |
| ______________________________________ |
| Ba 69-82 0.14 2.7 1.4 8.1 1.7 |
| Ba 73-540 0.14 2.0 1.6 8.3 1.9 |
| Abbey 0.32 4.4 2.8 7.7 0.0 |
| Adelphi 0.34 2.6 3.4 8.8 0.0 |
| America 0.12 1.7 2.1 8.4 2.0 |
| Baron 0.33 4.6 3.6 7.4 0.4 |
| Bristol 0.12 2.6 3.0 8.9 2.0 |
| Chateau 0.22 3.3 3.1 7.8 0.5 |
| Coventry 0.32 3.1 2.4 8.1 0.3 |
| Eclipse 0.38 2.8 2.6 9.0 0.2 |
| Georgetown |
| 0.14 2.5 2.4 8.5 2.0 |
| Gnome 0.23 1.6 0.8 7.5 1.4 |
| Kelly 0.34 4.6 2.4 8.8 0.0 |
| Marquis 0.21 3.6 1.1 6.8 1.1 |
| Midnight 0.10 1.3 1.6 7.7 2.0 |
| Nassau 0.34 2.5 3.3 8.5 1.4 |
| Ram I 0.09 1.8 2.0 7.7 2.0 |
| Touchdown 0.29 1.4 1.3 7.9 8.0 |
| Victa 0.26 2.3 1.7 7.9 0.1 |
| LSD (.05) 0.04 0.79 0.70 089 0.57 |
| ______________________________________ |
| 1 Degrees from stem |
| 2 Rating Scale: 1-9; 1 = curves up; 5 = no curve; 9 = curves down |
| 3 Rating Scale: 0-9; 1 = none; 9 = many |
| 4 Rating Scale: 1-9; 1 = rough; 9 = smooth |
| 5 Rating Scale: 0-9; 0 = no color; 9 = dark purple color |
Ba 69-82 has performed well throughout the U.S. and Canada as exhibited by
high turf quality ratings in a number of locations across the U.S. in
comparison to other Kentucky Bluegrass varieties. In addition, it has a
pleasant medium green color which can be maintained throughout the growing
season and good winter color. It demonstrates early spring greening and
good spring density.
With regard to a comparative analysis conducted for purposes of determining
color of Ba 69-82 plants relative to other Kentucky Bluegrass varieties,
readings were taken of the vegetative color of Ba 69-82 during mid-May
while the turf was actively growing with adequate nutrient and water
availability. The readings were taken in full sun with several actively
growing leaves being compared, one at a time, utilizing color chips from
the Munsell Book of Color as a reference. On this basis, the color of Ba
69-82 was determined to be 5 GY 4/4. During the same time period, the
color of similar leaves of other Kentucky Bluegrass varieties were
determined by the same procedure to be as follows: Ba 73-381-5 GY 4/4; Ba
73-366-5 GY 4/4; Ba 73-540-5 GY 4/4; Abbey - 5GY 3/4; and Coventry-5 GY
4/4. However, it should be noted that the general apparent color of turf
does not always correlate directly with the color of the individual
actively growing leaves within the turf and that turf color varies with
nutrient level and time of year with some varieties being darker or
lighter green depending on such factors.
Comparisons of Ba 69-82 with other Kentucky Bluegrass varieties for
quality, genetic color, winter color and spring greening are set forth
hereinafter in Tables 9-12;
| TABLE 9 |
| ______________________________________ |
| A Comparison of Quality of Ba 69-82 and Other Kentucky |
| Bluegrass Varieties in Four Annual Tests (A-D) Conducted at |
| Forty Turfgrass Locations in the U.S. and Canada |
| TESTS (Annual/Means) |
| Variety A B C D |
| ______________________________________ |
| Ba 69-82 5.7 5.7 6.1 5.8 |
| Ba 73-540 5.8 5.9 6.0 5.8 |
| Abbey 5.6 5.7 5.9 5.7 |
| Able 1 5.7 5.7 6.0 6.1 |
| Amazon 5.4 5.5 5.5 5.5 |
| America 5.8 5.9 6.1 6.2 |
| A-34 5.6 5.9 6.0 6.1 |
| Baron 5.8 5.6 5.9 5.8 |
| Bristol 5.7 6.0 6.1 6.0 |
| Chateau 6.0 5.8 6.0 6.0 |
| Classic 5.9 5.8 6.0 5.9 |
| Coventry 5.8 5.8 5.9 5.8 |
| Eclipse 5.6 5.9 6.2 6.3 |
| Estate 5.9 5.9 5.9 5.8 |
| Georgetown 5.8 5.6 5.8 5.8 |
| Glade 5.7 5.8 6.1 6.1 |
| Gnome 5.5 5.3 5.6 5.5 |
| Haga 5.8 5.8 5.8 5.9 |
| Kelly 5.6 5.7 5.9 5.8 |
| Kenblue 5.0 4.7 5.0 5.2 |
| Marquis 5.3 5.6 5.7 5.7 |
| Merion 5.4 5.4 5.7 5.6 |
| Merit 5.6 5.6 5.9 5.8 |
| Midnight 6.1 6.3 6.4 6.3 |
| Monopoly 5.5 5.5 5.9 5.9 |
| Nassau 5.6 5.7 5.8 5.5 |
| Ram I 5.7 5.6 5.9 5.8 |
| Victa 5.8 5.7 5.8 5.8 |
| LSD (.05) 0.2 0.2 0.2 0.2 |
| ______________________________________ |
| Rating Scale: 1-9; 9 = ideal turf |
| *Not all forty locations reported data each year. |
| TABLE 10 |
| ______________________________________ |
| A Comparison of Genetic Color of Ba 69-82 and Other Kentucky |
| Bluegrass Varieties at 15 Locations in the U.S. and Canada |
| TESTS (Annual Means) |
| Variety A B C D |
| ______________________________________ |
| Ba 69-82 6.8 6.1 6.4 6.3 |
| Ba 73-540 6.5 6.2 6.3 6.5 |
| Abbey 6.8 6.2 6.7 6.6 |
| Able I 7.1 6.8 6.7 6.9 |
| Amazon 6.2 6.9 7.0 6.5 |
| America 6.8 6.6 7.0 6.6 |
| A-34 5.7 5.6 5.7 5.7 |
| Baron 6.8 6.5 6.9 6.8 |
| Bristol 7.3 7.1 6.6 6.6 |
| Chateau 6.5 6.0 6.2 6.5 |
| Classic 5.8 5.6 6.3 5.9 |
| Coventry 6.5 6.0 6.5 6.6 |
| Eclipse 7.7 6.7 6.5 6.6 |
| Estate 6.7 5.9 6.3 6.6 |
| Georgetown 6.1 5.7 5.9 6.7 |
| Glade 7.4 7.0 6.7 6.9 |
| Gnome 6.4 6.5 6.8 6.7 |
| Haga 5.8 5.5 6.1 5.8 |
| Kelly 6.7 6.5 6.9 6.5 |
| Kenblue 5.2 5.2 5.5 6.0 |
| Marquis 7.2 6.6 6.8 6.5 |
| Merion 6.4 5.6 6.0 6.5 |
| Merit 6.7 6.4 6.5 6.1 |
| Midnight 8.0 7.9 7.5 7.7 |
| Monopoly 5.3 5.5 5.5 5.3 |
| Nassau 7.1 6.7 6.9 6.8 |
| Ram I 6.9 6.6 6.9 6.6 |
| Victa 6.7 6.3 6.7 6.5 |
| LSD (.05) 0.4 0.4 0.4 0.4 |
| ______________________________________ |
| Rating Scale; 1-9:9 = dark green |
| TABLE 11 |
| ______________________________________ |
| A Comparison of Spring Greenup for Ba 69-82 and Other |
| Kentucky Bluegrass Varieties at Five Locations* in the |
| U.S. and Canada |
| Variety Annual Means |
| ______________________________________ |
| Ba 69-82 4.8 |
| Ba 73-540 4.6 |
| Abbey 4.2 |
| Able I 3.7 |
| Amazon 3.7 |
| America 3.9 |
| A-34 5.2 |
| Baron 4.2 |
| Bristol 5.0 |
| Chateau 4.9 |
| Classic 4.5 |
| Coventry 4.6 |
| Eclipse 4.5 |
| Estate 4.6 |
| Georgetown 4.2 |
| Glade 4.9 |
| Gnome 3.9 |
| Haga 4.5 |
| Kelly 4.0 |
| Kenblue 5.1 |
| Marquis 4.0 |
| Merion 4.3 |
| Merit 3.9 |
| Midnight 3.9 |
| Monopoly 4.1 |
| Nassau 5.2 |
| Ram I 4.3 |
| Victa 4.3 |
| LSD (.05) 0.7 |
| ______________________________________ |
| Rating Scale: 1-9:9 = completely green. |
| *Locations: Agassiz, British Columbia; Post Fall, ID; West Lafayette, In; |
| Columbus, OH; Kingston, RI. |
| TABLE 12 |
| ______________________________________ |
| A Comparison of Winter Color of Ba 69-82 and Other |
| Kentucky Bluegrass Varieties in the U.S. and Canada |
| Winter Color |
| Wichita, Agassiz |
| Variety Kansas British Columbia |
| ______________________________________ |
| Ba 69-82 5.0 5.0 |
| Ba 73-540 5.0 5.0 |
| Abbey 3.0 4.7 |
| Able I 5.7 4.0 |
| Amazon 4.0 4.0 |
| America 4.7 4.0 |
| A-34 4.7 4.3 |
| Baron 3.3 4.7 |
| Bristol 5.7 5.0 |
| Chateau 5.0 5.0 |
| Classic 5.0 4.0 |
| Coventry 5.0 5.0 |
| Eclipse 4.0 4.3 |
| Estate 4.3 5.0 |
| Georgetown 5.3 4.0 |
| Glade 3.3 4.3 |
| Gnome 2.7 4.3 |
| Haga 5.0 4.0 |
| Kelly 3.7 4.7 |
| Kenblue 3.0 3.0 |
| Marquis 3.3 4.3 |
| Merion 3.0 4.0 |
| Merit 3.3 5.0 |
| Midnight 4.3 4.7 |
| Monopoly 3.7 4.7 |
| Nassau 5.7 5.0 |
| Ram I 5.0 4.7 |
| Victa 3.7 5.0 |
| LSD (.05) 1.0 0.6 |
| ______________________________________ |
| Rating Scale: 1-9; 9 = complete color retention. |
Further comparisons of Ba 69-82 with other Kentucky Bluegrass varieties for
leaf texture and spring, summer and fall density are given in Tables 13-16
as follows:
| TABLE 13 |
| ______________________________________ |
| A Comparison of Leaf Texture of Ba 69-82 and Other |
| Kentucky Bluegrass Varieties in Two Annual Tests (A-B) |
| Conducted at Eight Locations in the U.S. and Canada* |
| TESTS (Annual Means) |
| Variety A B |
| ______________________________________ |
| Ba 69-82 5.7 5.8 |
| Ba 73-540 5.8 5.6 |
| Abbey 6.3 6.3 |
| Able I 7.1 7.3 |
| Amazon 7.5 7.2 |
| America 7.1 7.2 |
| A-34 6.4 6.9 |
| Baron 6.8 6.1 |
| Barzan 6.1 6.7 |
| Bristol 6.7 6.3 |
| Chateau 6.1 6.0 |
| Classic 6.6 7.0 |
| Coventry 5.9 5.7 |
| Eclipse 6.4 6.5 |
| Estate 6.3 5.9 |
| Georgetown 6.8 6.8 |
| Glade 6.8 6.7 |
| Gnome 6.1 6.2 |
| Haga 6.7 7.1 |
| Kelly 6.4 5.7 |
| Kenblue 7.8 7.3 |
| Marquis 6.1 5.7 |
| Merion 6.7 6.8 |
| Merit 6.3 6.1 |
| Midnight 7.3 6.7 |
| Monopoly 7.1 6.8 |
| Nassau 6.6 6.5 |
| Ram I 7.3 7.1 |
| Victa 6.3 6.0 |
| LSD (.05) 0.5 0.5 |
| ______________________________________ |
| Rating Scale: 1-9; 9 = very fine |
| *Locations Test A: West Lafayette, In.; Columbia, Mo.; Farmington, NM; |
| Columbus, OH.; Brookings, SD; Puyallup, WA. |
| Locations Test B: Agassiz, British Columbia; Post Falls, ID.; Columbus, |
| OH.; Brookings, SD,; Puyallup, WA. |
| TABLE 14 |
| ______________________________________ |
| A Comparison of Spring Density for Ba 69-82 and Other |
| Kentucky Bluegrass Varieties in Two Annual Tests (A-B) |
| Conducted at Five Locations* in the U.S. and Canada |
| TESTS (Annual Means) |
| Variety A B |
| ______________________________________ |
| Ba 69-82 6.7 7.1 |
| Ba 73-540 6.5 7.6 |
| Abbey 5.8 6.8 |
| Able I 5.8 7.4 |
| Amazon 6.7 6.7 |
| America 6.2 7.1 |
| A-34 5.7 7.3 |
| Baron 6.3 6.8 |
| Bristol 5.3 6.9 |
| Chateau 6.7 7.3 |
| Classic 5.5 7.2 |
| Coventry 6.5 7.1 |
| Eclipse 5.5 7.1 |
| Estate 6.3 7.2 |
| Georgetown 5.5 6.9 |
| Glade 6.8 7.3 |
| Gnome 6.0 6.3 |
| Haga 5.5 7.3 |
| Kelly 6.3 6.7 |
| Kenblue 6.2 6.0 |
| Marquis 6.0 6.6 |
| Merion 6.3 7.3 |
| Merit 5.8 6.7 |
| Midnight 6.7 7.4 |
| Monopoly 6.2 7.0 |
| Nassau 6.2 6.6 |
| Ram I 7.0 6.4 |
| Victa 5.8 6.8 |
| LSD (.05) 0.8 0.7 |
| ______________________________________ |
| Rating Scale: 1-9; 9 = maximum density |
| *Locations Test A: Winnipeg, Manitoba; Columbus, OH. |
| Locations Test B: Columbia, Mo; University Park, Pa.; Brookings, SD. |
| TABLE 15 |
| ______________________________________ |
| A Comparison of Summer Density of Ba 69-82 and Other |
| Kentucky Bluegrass Varieties in Two Annual Tests (A-B) |
| Conducted at Four Locations in the U.S. and Canada* |
| TESTS (Annual Means) |
| Variety A B |
| ______________________________________ |
| Ba 69-82 6.8 8.2 |
| Ba 73-540 6.7 8.2 |
| Abbey 7.1 8.0 |
| Able I 6.8 7.8 |
| Amazon 6.8 8.2 |
| America 6.8 7.7 |
| A-34 6.8 7.8 |
| Baron 6.3 7.7 |
| Bristol 6.4 7.8 |
| Chateau 7.3 8.3 |
| Classic 6.3 8.0 |
| Coventry 6.8 8.2 |
| Eclipse 6.3 7.7 |
| Estate 6.6 8.2 |
| Georgetown 5.9 7.3 |
| Glade 6.2 8.2 |
| Gnome 6.3 7.3 |
| Haga 6.3 7.7 |
| Kelly 6.4 7.7 |
| Kenblue 6.1 7.2 |
| Marquis 6.3 7.0 |
| Merion 6.4 7.8 |
| Merit 6.3 7.8 |
| Midnight 6.5 7.8 |
| Monopoly 5.8 7.7 |
| Nassau 6.1 7.0 |
| Ram I 6.7 7.8 |
| Victa 6.2 8.0 |
| LSD (.05) 0.8 0.7 |
| ______________________________________ |
| Rating Scale: 1-9; 9 = maximum density |
| *Locations Test A: Winnipeg, Manitoba; Columbus, OH. |
| Locations Test B: Columbia, Mo.; Brookings, SD. |
| TABLE 16 |
| ______________________________________ |
| A Comparison of Fall Density Ba 69-82 and Other Kentucky |
| Bluegrass Varieties in Two Annual Tests (A-B) Conducted at |
| Five Locations in the U.S. and Canada* |
| TESTS (Annual Means) |
| Variety A B |
| ______________________________________ |
| Ba 69-82 8.0 7.5 |
| Ba 73-540 8.7 7.8 |
| Abbey 7.0 7.2 |
| Able I 8.2 7.4 |
| Amazon 9.0 7.8 |
| America 8.7 7.5 |
| A-34 8.2 7.9 |
| Baron 8.0 7.0 |
| Bristol 7.8 7.5 |
| Chateau 8.2 7.5 |
| Classic 8.2 7.5 |
| Coventry 9.0 7.3 |
| Eclipse 8.0 7.5 |
| Estate 8.0 7.4 |
| Georgetown 7.3 7.1 |
| Glade 7.8 7.6 |
| Gnome 7.7 7.1 |
| Haga 8.3 7.5 |
| Kelly 7.2 7.8 |
| Kenblue 8.3 7.5 |
| Marquis 6.2 6.8 |
| Merion 7.3 7.3 |
| Merit 7.2 7.0 |
| Midnight 8.3 8.1 |
| Monopoly 7.5 7.1 |
| Nassau 6.5 7.3 |
| Parade 8.7 7.5 |
| Ram I 9.0 7.6 |
| Victa 7.8 7.1 |
| LSD (.05) 0.5 0.6 |
| ______________________________________ |
| Rating Scale: 1-9:9 = maximum density |
| *Locations Test A: Winnipeg, Monitoba; Brookings, SD. |
| Locations Test B: Post Falls, ID.; Winnipeg, Manitoba; Columbia, Mo.; |
| Columbus, OH. |
Turf diseases are one of the major causes of inconsistent and poor turf
performance among locations and years. Ba 69-82 has been found to have a
high level of resistance to leaf spot, melting out and crown rot caused by
Drechslera poae (formerly called Helminthosporium vagans), a medium to
high level of resistance to several rust diseases caused by Puccinia spp.,
dollarspot caused by Sclerotina homeocarpa, red thread caused by
Laetisaria fuciformis (formerly called Corticium fuciforme), necrotic ring
spot caused by Leptosphaeria korrae, stripe smut caused by Ustilago
striiformis, and powdery mildew caused by Erysinhe graminis.
Comparisons of disease incidence in Ba 69-82 as compared with other
Kentucky Bluegrass varieties in regard to leaf spot, melting out, rusts,
dollarspot, red thread, stripe smut, necrotic ring spot and powdery mildew
are presented in Tables 17-27. Additional comparisons are presented in
Tables 28-31 for drought stress, sod strength and seed yields.
| TABLE 17 |
| ______________________________________ |
| A Comparison of Leaf Spot Disease Incidence in Ba 69-82 and |
| Other Kentucky Bluegrass Varieties in Two Annual Tests |
| Conducted at Five Locations in the U.S. and Canada* |
| TEST (Annual Means) |
| Variety A B |
| ______________________________________ |
| Ba 69-82 7.2 6.2 |
| Ba 73-540 5.9 5.7 |
| Abbey 4.6 5.8 |
| Able I 6.8 5.7 |
| Amazon 5.2 5.8 |
| America 5.7 6.5 |
| A-34 6.3 5.7 |
| Baron 6.0 6.5 |
| Bristol 7.9 6.5 |
| Chateau 6.4 6.2 |
| Classic 6.2 6.0 |
| Coventry 5.0 6.2 |
| Eclipse 7.4 7.0 |
| Estate 6.8 5.8 |
| Georgetown 6.7 6.5 |
| Glade 7.4 5.8 |
| Gnome 6.0 6.3 |
| Haga 6.7 6.0 |
| Kelly 5.1 6.2 |
| Kenblue 4.8 2.0 |
| Marquis 6.4 6.2 |
| Merion 6.2 6.3 |
| Merit 5.6 6.5 |
| Midnight 7.2 6.2 |
| Monopoly 5.6 6.7 |
| Nassau 6.6 6.2 |
| Ram I 4.9 5.0 |
| Victa 6.0 6.2 |
| LSD (.05) 1.0 0.9 |
| ______________________________________ |
| Rating Scale: 1-9; 9 = no disease |
| *Locations Test A: Post Falls, ID.; Hubbard, OR.; Remington, VA. |
| Locations Test B: Beltsville, MD.; Blacksburg, VA. |
| TABLE 18 |
| ______________________________________ |
| A Comparison of Leaf Spot Disease Incidence in Ba 69-82 and |
| Other Kentucky Bluegrass Varieties in Three Annual Tests |
| (A-C) Conducted at Marysville, OH |
| % Leaf Spot Tests |
| Variety A B C |
| ______________________________________ |
| Ba 69-82 4.3 1.0 16.7 |
| Adelphi 17.7 2.3 11.7 |
| Bristol 5.2 1.0 5.0 |
| Marquis 5.2 1.0 8.3 |
| Parade 7.7 13.3 16.7 |
| Park 62.5 76.7 90.0 |
| Vantage 33.3 7.0 25.0 |
| Victa 9.2 1.0 10.7 |
| LSD (.05) 3.1 15.7 |
| ______________________________________ |
| TABLE 19 |
| ______________________________________ |
| A Comparison of Leaf Spot Disease Incidence in Ba 69-82 and |
| Other Kentucky Bluegrass Varieties in Two Annual Tests (A-B) |
| Conducted at Gervais, Oregon |
| % Leaf Spot Tests |
| Variety A B |
| ______________________________________ |
| Ba 69-82 10.0 16.7 |
| Adelphi 70.0 73.3 |
| America 53.3 36.7 |
| Bristol 5.0 10.0 |
| Glade 21.7 36.7 |
| Kenblue 88.3 66.7 |
| Marquis 83.3 88.3 |
| Merit 80.0 83.3 |
| Newport 50.0 60.1 |
| Victa 80.0 78.3 |
| LSD (.05) 16.0 26.0 |
| ______________________________________ |
| TABLE 20 |
| ______________________________________ |
| A Comparison of Leaf Spot Disease Incidence in Ba 69-82 and |
| Other Kentucky Bluegrass Varieties at Prince Fredrick, Maryland |
| Variety % Leaf Spot |
| ______________________________________ |
| Ba 69-82 12.5 |
| Fylking 10.0 |
| Kenblue 60.0 |
| Merion 15.0 |
| Nugget 10.0 |
| Newport 40.0 |
| Vantage 20.0 |
| Victa 27.5 |
| LSD (.05) 23 |
| ______________________________________ |
| TABLE 21 |
| ______________________________________ |
| A Comparison of Melting Out Disease Incidence in Ba 69-82 and |
| Other Kentucky Bluegrass Varieties at Three Locations* |
| Melting Out |
| Variety Spring Fall |
| ______________________________________ |
| Ba 69-82 5.0 9.0 |
| Ba 73-540 5.2 8.7 |
| Abbey 3.7 8.0 |
| Able I 4.5 9.0 |
| Amazon 4.2 7.0 |
| America 5.2 8.7 |
| A-34 4.8 8.7 |
| Baron 4.3 8.3 |
| Bristol 5.7 9.0 |
| Chateau 5.5 9.0 |
| Classic 6.2 8.7 |
| Coventry 4.3 9.0 |
| Eclipse 5.0 7.0 |
| Estate 5.3 9.0 |
| Georgetown 5.8 9.0 |
| Glade 4.5 8.0 |
| Gnome 4.5 8.7 |
| Haga 6.2 9.0 |
| Kelly 3.8 8.3 |
| Kenblue 3.7 1.0 |
| Marquis 4.8 7.7 |
| Merion 5.0 9.0 |
| Merit 4.2 8.3 |
| Midnight 4.0 9.0 |
| Monopoly 4.5 8.0 |
| Nassau 5.0 9.0 |
| Ram I 4.5 5.3 |
| Victa 5.2 8.0 |
| LSD (.05) 0.7 1.6 |
| ______________________________________ |
| Rating Scale: 1-9; 9 = no disease |
| *Locations: Fall Puyallup, Wa. Spring Blacksburg, Va.; Blackstone, Va. |
| TABLE 22 |
| ______________________________________ |
| A Comparison of Stripe Smut Disease Incidence in Ba 69-82 and |
| Other Kentucky Bluegrass Varieties in 2 Tests (A-B) Conducted |
| at Prince Fredrick, Md |
| % Stripe Smut |
| Variety A B |
| ______________________________________ |
| Ba 69-B2 4.0 1.5 |
| Fylking 27.5 40.0 |
| Kenblue 5.0 2.5 |
| Merion 37.5 75.0 |
| Nugget 4.0 17.5 |
| Newport 12.5 10.0 |
| Vantage 12.5 30.0 |
| Victa 55.0 50.0 |
| LSD (.05) 30 22 |
| ______________________________________ |
| TABLE 23 |
| ______________________________________ |
| A Comparison of Dollar Spot Disease Incidence in Ba 69-82 and |
| Other Kentucky Bluegrass Varieties at Columbia, MO |
| Variety Dollar Spot |
| ______________________________________ |
| Ba 69-82 7.7 |
| Ba 73-540 8.0 |
| Abbey 7.3 |
| Able I 7.7 |
| Amazon 6.7 |
| America 7.3 |
| A-34 7.3 |
| Baron 7.0 |
| Bristol 7.7 |
| Chateau 6.7 |
| Classic 6.3 |
| Coventry 7.7 |
| Eclipse 7.7 |
| Estate 7.3 |
| Georgetown 7.3 |
| Glade 7.3 |
| Gnome 8.0 |
| Haga 7.3 |
| Kenblue 7.3 |
| Merion 7.3 |
| Merit 6.7 |
| Midnight 6.7 |
| Monopoly 7.0 |
| Nassau 6.7 |
| Ram I 6.0 |
| Victa7.7 |
| LSD (.05) 1.4 |
| ______________________________________ |
| Rating Scale: 1-9; 9 = no disease |
| TABLE 24 |
| ______________________________________ |
| A Comparison of Powdery Mildew Disease Incidence in |
| Ba 69-82 and Other Kentucky Bluegrass Varieties in Two |
| Annual Tests Conducted at Two Separate Locations |
| Powdery Mildew |
| Adelphia. N J |
| Ritzville, WA |
| Variety Test Test |
| ______________________________________ |
| Ba 69-82 5.3 7.0 |
| Ba 73-540 5.7 6.0 |
| Abbey 1.0 3.5 |
| Able I 6.7 5.7 |
| Amazon 5.0 4.7 |
| America 7.7 8.0 |
| A-34 6.7 5.0 |
| Baron 1.3 4.0 |
| Bristol 7.0 8.0 |
| Chateau 5.3 5.0 |
| Classic 2.7 6.7 |
| Coventry 6.0 6.0 |
| Eclipse 5.0 6.0 |
| Estate 7.0 6.7 |
| Georgetown 2.7 6.0 |
| Glade 3.3 6.0 |
| Gnome 1.0 3.7 |
| Haga 3.0 6.3 |
| Kenblue 5.0 8.0 |
| Merion 1.0 5.7 |
| Merit 1.7 4.6 |
| Midnight 1.7 4.0 |
| Monopoly 6.7 7.7 |
| Nassau 2.3 5.7 |
| Ram I 6.7 4.7 |
| Victa 1.7 4.3 |
| LSD (.05) 1.4 2.3 |
| ______________________________________ |
| Rating Scale: 1-9; 9' = no disease |
| TABLE 25 |
| ______________________________________ |
| A Comparison of Rust Disease Incidence in Ba 69-82 and Other |
| Kentucky Bluegrass Varieties in Annual Testing at Various |
| Locations in the U.S. and Canada |
| Crown |
| Stripe Rust |
| Rust |
| Stem Rust Agassiz, Agassiz |
| Adelphia Post Falls |
| British British |
| New Jersey Idaho Columbia |
| Columbia |
| Variety Test Test Test Test |
| ______________________________________ |
| Ba 69-82 8.3 8.0 8.0 9.0 |
| Ba 73-540 |
| 8.0 8.0 8.0 9.0 |
| Abbey 6.3 8.3 6.3 7.0 |
| Able I 7.0 8.0 7.3 8.3 |
| Amazon 6.0 7.3 7.0 9.0 |
| America 8.3 7.7 8.0 8.3 |
| A-34 8.0 8.0 7.0 8.3 |
| Baron 7.3 8.0 7.0 8.0 |
| Bristol 8.7 8.0 8.0 8.3 |
| Chateau 8.3 7.3 7.3 9.0 |
| Classic 8.7 8.3 8.0 9.0 |
| Coventry 8.3 8.0 8.0 8.0 |
| Eclipse 7.7 8.3 6.3 9.0 |
| Estate 7.3 7.7 8.0 9.0 |
| Georgetown |
| 9.0 7.7 7.0 8.7 |
| Glade 7.7 8.0 6.0 6.7 |
| Gnome 7.7 8.7 7.0 7.7 |
| Haga 9.0 7.3 7.3 8.0 |
| Kenblue 8.3 7.7 7.7 6.7 |
| Merion 2.7 4.0 5.3 5.0 |
| Merit 8.0 8.0 6.7 7.0 |
| Midnight 8.3 7.3 5.7 6.3 |
| Monopoly 8.0 7.3 7.3 9.6 |
| Nassau 7.7 8.0 7.3 8.3 |
| Ram I 8.7 6.7 7.0 8.3 |
| Victa 7.7 5.7 5.7 7.3 |
| LSD (.05) |
| 1.0 2.0 1.2 1.4 |
| ______________________________________ |
| Rating Scale: 1-9 9 = no disease |
| TABLE 26 |
| ______________________________________ |
| A Comparison of Necrotic Ring Spot Disease Incidence in Ba |
| 69-82 and Other Kentucky Bluegrass Varieties at Post Falls, Id. |
| Variety Necrotic Ring Spot |
| ______________________________________ |
| Ba 69-82 9.0 |
| Ba 73-540 7.3 |
| Abbey 7.0 |
| Able I 9.0 |
| Amazon 6.3 |
| America 8.3 |
| A-34 8.7 |
| Baron 9.0 |
| Bristol 8.3 |
| Chateau 8.0 |
| Classic 9.0 |
| Coventry 8.7 |
| Eclipse 7.7 |
| Estate 8.3 |
| Georgetown 9.0 |
| Glade 9.0 |
| Gnome 8.3 |
| Haga 9.0 |
| Kelly 8.7 |
| Kenblue 9.0 |
| Merion 9.0 |
| Merit 9.0 |
| Midnight 8.0 |
| Monopoly 9.0 |
| Mystic 8.7 |
| Nassau 9.0 |
| Ram I 9.0 |
| Victa 9.0 |
| LSD (.05) 1.8 |
| ______________________________________ |
| Rating Scale: 1-9; 9 = no disease |
| TABLE 27 |
| ______________________________________ |
| A Comparison of Red Thread Disease Incidence in Ba 69-82 and |
| Other Kentucky Bluegrass Varieties at Gervais, Oregon |
| Variety % Red Thread |
| ______________________________________ |
| Ba 69-82 0.0 |
| Adelphi 0.0 |
| America 1.7 |
| Bristol 0.0 |
| Glade 15.0 |
| Kenblue 23.3 |
| Marquis 6.7 |
| Merit 6.7 |
| Newport 3.3 |
| Victa 10.0 |
| LSD (.05) 13.0 |
| ______________________________________ |
| TABLE 28 |
| ______________________________________ |
| A Comparison of Percent Drought Damage in Ba 69-82 and |
| Other Kentucky Bluegrass Varieties in Two Annual Tests (A-B) |
| Conducted at Prince Fredrick, Maryland |
| % Drought Damage Test |
| Variety A B |
| ______________________________________ |
| Ba 69-82 0.0 17.5 |
| Fylking 12.5 25.0 |
| Kenblue 5.0 7.5 |
| Merion 2.5 15.0 |
| Nugget 12.5 20.0 |
| Newport 7.5 10.0 |
| Vantage 0.0 15.0 |
| Victa 15.0 45.0 |
| LSD (.05) 11.0 29.0 |
| ______________________________________ |
| TABLE 29 |
| ______________________________________ |
| A Comparison of Sod Strength 8 and 12 Months After Planting |
| of Ba 69-82 and Other Kentucky Bluegrass Varities at |
| Remington, VA |
| SOD STRENGTH |
| Variety 8 Months 12 Months |
| ______________________________________ |
| Ba 69-82 26.0 20.0 |
| Ba 73-540 20.3 11.7 |
| Abbey 17.0 8.0 |
| Able I 16.3 8.7 |
| Amazon 18.0 8.7 |
| America 30.7 18.7 |
| A-34 21.7 9.7 |
| Baron 25.7 14.7 |
| Bristol 24.7 8.3 |
| Challenger 23.0 12.0 |
| Chateau 23.3 15.0 |
| Classic 23.0 15.3 |
| Coventry 18.0 11.0 |
| Eclipse 22.0 13.0 |
| Estate 23.3 16.0 |
| Georgetown 30.0 14.3 |
| Glade 26.3 18.0 |
| Gnome 22.0 14.3 |
| Haga 22.3 13.0 |
| Kenblue 22.0 16.3 |
| Marquis 23.0 12.7 |
| Merion 21.3 11.3 |
| Merit 25.3 13.3 |
| Midnight 22.3 14.3 |
| Monopoly 26.0 8.3 |
| Nassau 22.3 8.3 |
| Ram I 22.3 11.0 |
| Victa 29.3 16.3 |
| Wabash 16.7 10.3 |
| LSD (.05) 6.9 6.1 |
| ______________________________________ |
| Rating Scale: Kilograms of tension needed to tear sod. |
| TABLE 30 |
| ______________________________________ |
| Seed Yield Comparison in Pounds Per Acre of Ba 69-82 and |
| Other Kentucky Bluegrass Varieties in Three Annual Tests |
| (A-C) Conducted in Oregon |
| Madras, Oregon |
| LaGrande, Oregon |
| Variety Test A Test B Test C |
| ______________________________________ |
| Ba 69-82 884 920 894 |
| Abbey -- 1253 1512 |
| Baron 1194 -- -- |
| Chateau 1113 857 876 |
| Coventry 1090 -- -- |
| Estate -- 857 876 |
| Marquis -- 1030 1174 |
| Victa 1324 1200 1419 |
| LSD 181 149 |
| ______________________________________ |
| TABLE 31 |
| ______________________________________ |
| A Comparison of Seed Yields in Pounds Per Acre of Ba 69-82 |
| and Other Kentucky Bluegrass Varities at LaGrande, Oregon |
| Variety Yield |
| ______________________________________ |
| Ba 69-82 |
| 1,159 |
| Ba 73-366 |
| 1,612 |
| Ba 73-381 |
| 1,551 |
| Ba 74-114 |
| 748 |
| Abbey 1,549 |
| Coventry |
| 1,046 |
| LSD (.05) |
| 160 |
| ______________________________________ |
Meier, Virgil D.
| Patent |
Priority |
Assignee |
Title |
| PP10080, |
Jul 15 1996 |
OMS Investments, Inc. |
`BA 77 700` Kentucky Bluegrass |
| PP10081, |
Jul 15 1996 |
OMS Investments, Inc. |
`BA 78-165` Kentucky Bluegrass |
| PP10384, |
Dec 10 1996 |
OMS Investments, Inc. |
Ba 78-258 Kentucky Bluegrass |
| PP10925, |
Oct 14 1997 |
OMS Investments, Inc. |
Kentucky Bluegrass, named `Ba74-17` |
| PP11520, |
Jul 22 1998 |
OMS Investments, Inc. |
Kentucky bluegrass designated `Ba79-260` |
| PP11536, |
Feb 27 1998 |
OMS Investments, Inc. |
Kentucky bluegrass designated `Ba87-102` |
| PP11647, |
Jul 22 1998 |
OMS Investments, Inc. |
Kentucky bluegrass designated `Ba76-372` |
| PP11987, |
May 24 2000 |
OMS Investments, Inc. |
Kentucky bluegrass designated `Ba75-173` |
| PP12435, |
Nov 10 2000 |
OMS Investments, Inc. |
Kentucky bluegrass designated `Ba81-227` |
| PP18439, |
Aug 19 2005 |
OMS Investments, Inc. |
Hybrid variety of (Texas Bluegrass×Kentucky Bluegrass)×Kentucky Bluegrass designated ‘HB 329’ |
| PP18467, |
Aug 06 2004 |
OMS Investments, Inc. |
Hybrid variety of Texas X kentucky bluegrass designated ‘HB 129’ |
| PP21045, |
Feb 22 2008 |
OMS INVESTMENTS, INC |
Hybrid variety of Texas×Kentucky bluegrass designated ‘HB 128’ |
| PP9977, |
Feb 23 1996 |
OMS Investments, Inc. |
Ba 77-279 Kentucky Bluegrass |
| Patent |
Priority |
Assignee |
Title |
| 3156, |
|
|
|
| 3186, |
|
|
|
| PP4336, |
Dec 27 1977 |
The O. M. Scott & Sons Company |
Kentucky bluegrass |
| PP6280, |
Sep 19 1986 |
The O.M. Scott & Sons Company |
Kentucky bluegrass |
| PP6537, |
Mar 17 1987 |
The O. M. Scott & Sons Company |
Kentucky bluegrass `Ba 72-492` |
| PP6538, |
Mar 17 1987 |
The O.M. Scott & Sons Company |
Kentucky bluegrass--BA 70-139 |
| PP6585, |
May 29 1987 |
The O. M. Scott & Sons Company |
Kentucky bluegrass |
| PP7831, |
Jun 22 1990 |
The O.M. Scott & Sons Company, Inc. |
Ba 73-626 Kentucky Bluegrass |
| PP8490, |
Jan 14 1992 |
The O. M. Scott & Sons Company |
BA 73-540 Kentucky Bluegrass |
| PP9036, |
Sep 23 1993 |
The O. M. Scott and Sons Company |
BA 73-366 Kentucky bluegrass |
| PP9209, |
Sep 19 1994 |
OMS Investments, Inc. |
`BA 73-381` Kentucky bluegrass |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| May 30 1995 | | OMS Investments, Inc. | (assignment on the face of the patent) | | / |
| Date |
Maintenance Fee Events |
n/a
| Date |
Maintenance Schedule |
n/a