USPP8168P - Midfield Bermudagrass - Google Patents
Midfield Bermudagrass Download PDFInfo
- Publication number
- USPP8168P USPP8168P US07/706,272 US70627291V US8168P US PP8168 P USPP8168 P US PP8168P US 70627291 V US70627291 V US 70627291V US 8168 P US8168 P US 8168P
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- midfield
- bermudagrass
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- 244000052363 Cynodon dactylon Species 0.000 title claims abstract description 35
- 208000026487 Triploidy Diseases 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 241000196324 Embryophyta Species 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 241001241702 Cynodon dactylon x Cynodon transvaalensis Species 0.000 description 2
- 241001278055 Cynodon transvaalensis Species 0.000 description 2
- 108010044467 Isoenzymes Proteins 0.000 description 2
- 241001465313 Ophiosphaerella herpotricha Species 0.000 description 2
- 102000003992 Peroxidases Human genes 0.000 description 2
- 229930002877 anthocyanin Natural products 0.000 description 2
- 235000010208 anthocyanin Nutrition 0.000 description 2
- 239000004410 anthocyanin Substances 0.000 description 2
- 150000004636 anthocyanins Chemical class 0.000 description 2
- 230000003466 anti-cipated effect Effects 0.000 description 2
- 230000035558 fertility Effects 0.000 description 2
- 239000004459 forage Substances 0.000 description 2
- 230000002068 genetic effect Effects 0.000 description 2
- 210000004209 hair Anatomy 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 108040007629 peroxidase activity proteins Proteins 0.000 description 2
- 230000019612 pigmentation Effects 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 102100022907 Acrosin-binding protein Human genes 0.000 description 1
- 241000339490 Brachyachne Species 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 241000223782 Ciliophora Species 0.000 description 1
- 101000756551 Homo sapiens Acrosin-binding protein Proteins 0.000 description 1
- 241001465312 Ophiosphaerella Species 0.000 description 1
- 208000035199 Tetraploidy Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 241001520823 Zoysia Species 0.000 description 1
- 210000000349 chromosome Anatomy 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
- A01H5/00—Angiosperms, i.e. flowering plants, characterised by their plant parts; Angiosperms characterised otherwise than by their botanic taxonomy
- A01H5/12—Leaves
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
- A01H6/00—Angiosperms, i.e. flowering plants, characterised by their botanic taxonomy
- A01H6/46—Gramineae or Poaceae, e.g. ryegrass, rice, wheat or maize
- A01H6/4612—Cynodon [Bermudagrass]
Definitions
- the present invention relates to a new and distinct variety of hybrid Bermudagrass which is well-adapted to the transition zone of the United States.
- Midfield is a turf-type hybrid Bermudagrass developed by open-pollination at the Kansas State University polycross nursery in Fort Hayes, Kans.
- Bermudagrass is widely grown as a lawn and general purpose turf, as a forage plant, and for erosion control. Common Bermudagrass requires warm weather for growth. The devastating winter of 1989-1990 killed many acres of Bermudagrass, establishing a need for hardy selections possessing high turf quality, particularly in the northern Bermudagrass or transistion zone. In addition, current commercial Bermudagrass cultivars present certain problems in that they have poor sod strength and are not tolerant of low fertility.
- Midfield Bermudagrass is a clone which was vegetatively propagated from rhizomes or stolons. The cultivar originated from a single seedling and was vegetatively propagated at Manhattan, Kans.
- FIG. 1 is a color photographic representation of a nursery grown potted Midfield Bermudagrass plant in accordance with the invention
- FIG. 2 is a color photographic representation of a field grown Midfield Bermudagrass plant subject to periodic mowing
- FIG. 3 is a graphic representation of electrophoretic banding patterns in the peroxidase isoenzyme system
- FIG. 4 is a photograph illustrating the complete influorescence of Midfield Bermudagrass
- FIG. 5 is a photograph illustrating a single raceme of Midfield Bermudagrass.
- FIG. 6 is a photograph illustrating a single spikelet of Midfield Bermudagrass.
- Cynodon dactylon ⁇ Cynodon transvaalensis is a stoloniferous perennial with slender underground tan to light brown rhizomes; surface stolons slender, prostrate, fast spreading; culms slender, about 5-40 cm high and 0.5-1.5 mm in diameter.
- Leaf-blades flat, or folded when dry, often short and narrow, about 1.5-2.0 mm wide and 75-110 mm long on fuly extended mature shoots; leaves dark green, mostly glabrous with very few hairs on upper (adaxial) surface near base; ligule a membranous rim about 0.2-0.3 mm long, ciliate on the edge; leaf sheaths light green, sometimes deveoping purple (anthocyanin) pigmentation at base, glabrous except for few hairs at base, about 10-40 mm in length and 1-5 mm in width. Internodes light green, sometimes developing purple (anthocyanin) pigmentation.
- Midfield exhibits a dark park green leaf color, #21-L-8, Maerz et al., A Dictionary of Color, McGraw-Hill Book Company, 2 Ed. (1950). Inflorescences infrequent, seldom producing seed heads; no viable seed produced. Growth habit decumbent, prostrate.
- Midfield is effectively sterile but does exhibit complete flower parts. Anthers are formed in the flowers; however, little if any viable pollen is formed within the anthers.
- Unmowed midfield exhibits an average internode length of from about 43.2 to 47 mm, and roots readily form at each node under favorable conditions of soil moisture and temperature.
- Midfield has been experimentally tested at several locations in the United States for overall turf performance. It is superior to commercial turf Bermudagrass varieties in one or more of the following characteristics affecting turf performance: sod density, color, and cold-tolerance. Midfield, along with two other cultivars, showed the second highest frost tolerance rating of 28 cultivars tested. As compared with other seedless types, Midfield is an aggressive clone with good turf quality and sod strength at low nitrogen levels. Midfield is an aggressive, fast-growing cultivar exhibiting a growth rate comparable to Vamont and Midiron cultivars. Midfield produces fewer seed heads, especially at higher nitrogen levels. It is anticipated that Midfield will be used exclusively as a lawn grass and for recreational turfs; it is not anticipated that Midfield will be used as a forage grass. Midfield exhibits substantially similar mowing and thatching characteristics, as compared with conventional Bermudagrass cultivars.
- Midfield Bermudagrass is genetically and physiologically distinctive as compared to other turf Bermudagrass cultivars. As best shown in FIG. 3, Midfield presents distinct electrophoretic banding patterns in the peroxidase isoenzyme system. Moreover, Midfield exhibits inflorescence of unilateral racemes numbering 3-6, usually 4 or 5, 3.5-6 cm long (average 4.3 cm); spikelets perfect 2-2.5 mm long with medium spacing on raceme, about 2.5 mm; glumes lanceolate in side view, 1-nerved, the upper 1/2-2/3 as long as the spikelet; lemma pubescent on the keel; palea glabrous.
- Tables 1-9 further describe the characteristics of Midfield (E-29), as compared with other cultivars.
- Tables 3 and 4 confirm the spring green-up and frost hardiness of Midfield.
- Table 9 demonstrates that Midfield is resistant to Spring Dead Spot (Ophiosphaerella herpotrica).
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physiology (AREA)
- Botany (AREA)
- Developmental Biology & Embryology (AREA)
- Environmental Sciences (AREA)
- Natural Medicines & Medicinal Plants (AREA)
- Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
Abstract
A triploid variety of Bermudagrass called Midfield, produces no viable seed, has superior cold hardness, excellent turf quality, and spreads more aggressively than most other turf type Bermudagrasses.
Description
The present invention relates to a new and distinct variety of hybrid Bermudagrass which is well-adapted to the transition zone of the United States. Midfield is a turf-type hybrid Bermudagrass developed by open-pollination at the Kansas State University polycross nursery in Fort Hayes, Kans.
Bermudagrass is widely grown as a lawn and general purpose turf, as a forage plant, and for erosion control. Common Bermudagrass requires warm weather for growth. The devastating winter of 1989-1990 killed many acres of Bermudagrass, establishing a need for hardy selections possessing high turf quality, particularly in the northern Bermudagrass or transistion zone. In addition, current commercial Bermudagrass cultivars present certain problems in that they have poor sod strength and are not tolerant of low fertility.
The distinguishing characteristics of this new variety of plant are excellent cold hardiness combined with high turf quality at low nitrogen levels, that is to say, good texture, color, sod density and tensile strength. Midfield Bermudagrass possesses increased cold tolerance to -20° F. and is also very drought resistant. This cultivar is aggressive, tolerant of low fertility, and has excellent wear resistance, which makes it suitable for school grounds or other low maintenance use.
Midfield Bermudagrass is a clone which was vegetatively propagated from rhizomes or stolons. The cultivar originated from a single seedling and was vegetatively propagated at Manhattan, Kans. The seed parent of Midfield was a cold hardy, Kansas, common tetraploid (2n=4×=36) Bermudagrass, Cynodon dactlon var. dactylon. The pollen parent was one of several African diploid (2n=2×=18) Bermudagrasses, C. transvaalensis, growing in the same polycross nursery as the common parent. Midfield is a triploid with 2n=3×=27 chromosomes and is highly male and female sterile. The clone progeny have been shown to be stable in all distinguishing characteristics.
FIG. 1 is a color photographic representation of a nursery grown potted Midfield Bermudagrass plant in accordance with the invention;
FIG. 2 is a color photographic representation of a field grown Midfield Bermudagrass plant subject to periodic mowing;
FIG. 3 is a graphic representation of electrophoretic banding patterns in the peroxidase isoenzyme system;
FIG. 4 is a photograph illustrating the complete influorescence of Midfield Bermudagrass;
FIG. 5 is a photograph illustrating a single raceme of Midfield Bermudagrass; and
FIG. 6 is a photograph illustrating a single spikelet of Midfield Bermudagrass.
The following taxonomic description is of the plant when grown in the green house as a potted plant and describes specimens cultured under controlled conditions which can be reproduced. However, the description to follow should not be construed as limiting with regard to the expressed characteristics of this plant, because the characteristics of Midfield have been observed to vary widely as a function of stage of growth, growing conditions, geographic location of culture, and management practices to which sod of the plant is subjected. Such differences in appearance of this plant can be appreciated with a comparison of FIG. 1 and FIG. 2 of the drawing, for example.
`Midfield` Bermudagrass, Cynodon dactylon×Cynodon transvaalensis is a stoloniferous perennial with slender underground tan to light brown rhizomes; surface stolons slender, prostrate, fast spreading; culms slender, about 5-40 cm high and 0.5-1.5 mm in diameter. Leaf-blades flat, or folded when dry, often short and narrow, about 1.5-2.0 mm wide and 75-110 mm long on fuly extended mature shoots; leaves dark green, mostly glabrous with very few hairs on upper (adaxial) surface near base; ligule a membranous rim about 0.2-0.3 mm long, ciliate on the edge; leaf sheaths light green, sometimes deveoping purple (anthocyanin) pigmentation at base, glabrous except for few hairs at base, about 10-40 mm in length and 1-5 mm in width. Internodes light green, sometimes developing purple (anthocyanin) pigmentation. Midfield exhibits a dark park green leaf color, #21-L-8, Maerz et al., A Dictionary of Color, McGraw-Hill Book Company, 2 Ed. (1950). Inflorescences infrequent, seldom producing seed heads; no viable seed produced. Growth habit decumbent, prostrate.
Midfield is effectively sterile but does exhibit complete flower parts. Anthers are formed in the flowers; however, little if any viable pollen is formed within the anthers.
Unmowed midfield exhibits an average internode length of from about 43.2 to 47 mm, and roots readily form at each node under favorable conditions of soil moisture and temperature.
Midfield has been experimentally tested at several locations in the United States for overall turf performance. It is superior to commercial turf Bermudagrass varieties in one or more of the following characteristics affecting turf performance: sod density, color, and cold-tolerance. Midfield, along with two other cultivars, showed the second highest frost tolerance rating of 28 cultivars tested. As compared with other seedless types, Midfield is an aggressive clone with good turf quality and sod strength at low nitrogen levels. Midfield is an aggressive, fast-growing cultivar exhibiting a growth rate comparable to Vamont and Midiron cultivars. Midfield produces fewer seed heads, especially at higher nitrogen levels. It is anticipated that Midfield will be used exclusively as a lawn grass and for recreational turfs; it is not anticipated that Midfield will be used as a forage grass. Midfield exhibits substantially similar mowing and thatching characteristics, as compared with conventional Bermudagrass cultivars.
Midfield Bermudagrass is genetically and physiologically distinctive as compared to other turf Bermudagrass cultivars. As best shown in FIG. 3, Midfield presents distinct electrophoretic banding patterns in the peroxidase isoenzyme system. Moreover, Midfield exhibits inflorescence of unilateral racemes numbering 3-6, usually 4 or 5, 3.5-6 cm long (average 4.3 cm); spikelets perfect 2-2.5 mm long with medium spacing on raceme, about 2.5 mm; glumes lanceolate in side view, 1-nerved, the upper 1/2-2/3 as long as the spikelet; lemma pubescent on the keel; palea glabrous.
The outstanding characteristics of this new variety of Bermudagrass are greater cold-tolerance combined with good turf quality at low nitrogen levels. Midfield is an aggressive clone with good sod strength and wear resistance which is suitable for school grounds and other low maintenance use.
The following Tables 1-9 further describe the characteristics of Midfield (E-29), as compared with other cultivars. Tables 3 and 4 confirm the spring green-up and frost hardiness of Midfield. Table 9 demonstrates that Midfield is resistant to Spring Dead Spot (Ophiosphaerella herpotrica).
TABLE 1
______________________________________
Sod Quality of Bermudagrass Clones, 1987-88.sup.1
Sod
Internode
Rhizome strength (lbs.)
(Kgs)
Bermuda clone
length (in.)
depth 1978 1981 1988
______________________________________
Midiron 2.0 1.75 12.5 17.7 16.7
KS Improved
1.5 4.28 28.0 23.2 NA
Midfield 1.8 2.72 33.5 44.9 45.7
Midlawn 1.7 2.34 34.3 31.8 30.7
______________________________________
.sup.1 Data for 1978 and 1981 from Kansas State University Research
Center; 1988 data from Mississippi State University
TABLE 2
______________________________________
Mean Turfgrass Quality Ratings of Bermudagrass
Cultivars at Thirteen Locations in the United States, 1990.sup.1
______________________________________
Turfgrass Quality Ratings (1-9, 9 = ideal turf)
Bermuda clone
AR AZ CA2 CA3 FL KS LA
______________________________________
Tifway 7.9 7.9 6.7 6.4 7.9 1.0 7.6
Tifway II 7.8 7.8 6.4 6.4 8.1 1.5 7.7
MSB-10 7.6 7.8 6.9 6.3 8.1 1.7 7.7
A-29 7.1 6.9 5.5 5.5 6.4 8.2 7.1
Midfield (E-29)
7.0 6.4 5.6 5.7 6.6 8.0 6.2
Midiron 6.8 6.4 5.9 5.8 6.9 7.5 6.8
Midlawn (A-22)
7.1 6.6 5.5 5.9 5.9 7.7 6.6
MSB-20 7.4 7.1 5.7 5.5 7.7 1.0 7.1
NM 43 6.9 7.1 5.6 5.8 7.7 1.2 7.2
MSB-30 6.0 6.9 6.5 5.8 6.5 2.7 7.1
Tufcote 7.6 6.2 5.7 5.7 7.2 2.0 7.4
Tifgreen 6.7 6.9 5.7 5.6 8.1 1.3 6.8
CT-23 5.0 7.2 5.6 5.9 6.5 3.0 7.2
NM 507 6.3 7.7 6.2 5.6 8.1 1.0 7.4
Texturf 10
6.3 6.6 5.5 5.5 7.0 2.8 6.3
NM 471 5.8 6.9 6.1 6.0 7.6 1.0 7.3
RS-1 6.0 5.6 5.5 5.7 5.7 5.8 5.9
FB-119 5.4 6.1 5.4 5.2 6.7 1.0 7.3
NM 375 5.7 6.2 5.4 5.6 7.1 1.0 6.6
Vamont 5.5 5.4 5.2 5.3 6.7 3.2 5.7
NMS 3 4.7 6.4 5.3 5.5 6.7 1.0 6.8
NM 72 4.8 6.4 5.2 5.1 7.8 1.0 6.6
NMS 4 5.6 6.3 5.5 5.3 7.2 1.0 6.2
Guymon 5.1 6.2 4.6 5.2 6.2 6.2 5.6
Numex-Sahara
4.7 4.7 5.2 5.1 4.9 1.0 6.3
NMS 2 4.9 4.5 5.1 5.1 3.8 1.0 5.4
NMS 14 4.5 4.6 4.9 4.8 4.6 1.0 5.2
AZ Common 4.6 4.2 4.8 4.9 4.4 1.0 5.4
LSD VALUE 1.1 0.6 0.4 0.4 1.1 1.4 0.6
______________________________________
Turfgrass Quality Ratings (1-9, 9 = ideal turf)
Bermuda clone
MD MO MS UB VA1 VA4 Mean
______________________________________
Tifway 7.1 1.9 7.5 7.3 6.2 7.1 6.3
Tifway II 6.8 1.0 7.7 7.3 6.3 7.1 6.3
MSB-10 6.8 1.0 7.7 6.7 6.3 6.8 6.3
A-29 5.8 1.4 5.1 7.0 7.0 5.5 6.0
Midfield (E-29)
5.8 2.8 4.4 6.8 6.5 5.9 6.0
Midiron 5.3 2.7 4.2 6.3 6.2 5.8 5.9
Midlawn (A-22)
5.7 1.4 5.1 6.7 6.2 5.8 5.8
MSB-20 6.3 1.0 6.9 7.6 5.5 6.6 5.8
NM 43 6.2 1.0 6.7 7.7 6.2 6.1 5.8
MSB-30 6.7 1.5 5.9 6.2 5.7 7.1 5.7
Tufcote 5.4 1.0 5.6 7.4 6.5 6.7 5.7
Tifgreen 5.9 1.0 6.2 7.8 6.0 6.4 5.7
CT-23 6.4 1.0 5.6 5.7 4.8 6.2 5.4
NM 507 6.2 1.0 4.5 4.3 4.8 6.9 5.4
Texturf 10
5.5 1.0 4.7 5.8 6.3 6.3 5.4
NM 471 5.8 1.0 4.4 4.8 5.2 6.9 5.3
RS-1 5.3 1.5 3.7 5.8 5.7 5.6 5.2
FB-119 5.8 1.2 4.6 6.3 6.3 6.0 5.2
NM 375 5.2 1.0 4.0 6.1 5.8 6.0 5.1
Vamont 4.8 2.1 4.0 5.9 5.7 5.8 5.0
NMS 3 5.7 1.0 3.8 5.9 5.5 6.2 5.0
NM 72 5.4 1.0 4.5 5.4 4.8 6.2 4.9
NMS 4 5.1 1.2 2.7 5.8 5.0 5.9 4.8
Guymon 4.8 2.6 2.2 5.1 3.2 3.0 4.6
Numex-Sahara
5.2 1.0 2.6 5.2 4.0 5.6 4.3
NMS 2 5.3 1.0 2.4 5.4 3.8 5.4 4.1
NMS 14 4.6 1.0 2.3 4.9 4.2 5.1 4.0
AZ Common 3.4 1.0 2.2 5.0 4.0 4.7 3.8
LSD VALUE 1.1 1.1 0.7 0.8 1.6 0.7 0.3
______________________________________
.sup.1 In certain states tests were performed at more than one location,
hence CA2 and CA3 for California and VA1 and VA4 for Virginia.
To determine statistical differences among entries, subtract one entry's
mean from another. Statistical differences occur when this value is large
than the corresponding LSD value (LSD 0.05).
TABLE 3
______________________________________
Spring Greenup Rating of Bermudagrass Cultivars, 1990.sup.1
Greenup Ratings (1-9, 9 = completely green)
Bermuda clone
AR AZ FL MS Mean
______________________________________
MSB-20 5.7 6.0 5.3 5.7 5.7
Midfield (E-29)
6.0 6.3 5.0 4.0 5.3
NM 43 5.3 6.3 4.3 5.0 5.3
Midlawn (A-22)
5.7 7.0 3.3 4.7 5.2
Tifway 5.0 6.3 4.3 5.0 5.2
Vamont 5.0 6.0 4.7 4.7 5.1
MSB-10 3.7 6.0 5.0 5.0 4.9
Midiron 5.3 6.3 2.7 5.0 4.8
Tufote 5.7 4.7 3.0 5.7 4.8
Tifgreen 5.0 5.3 4.3 4.3 4.8
Tifway II 4.0 5.0 4.7 5.0 4.7
Texturf 10
3.7 6.3 4.0 4.0 4.5
A-29 4.7 5.0 3.3 4.7 4.4
RS-1 5.7 5.0 2.7 4.0 4.3
FB-119 1.7 6.7 5.7 3.0 4.3
NM 507 2.0 6.7 4.3 3.7 4.2
Guymon 5.7 5.0 3.3 2.0 4.0
NM 375 2.7 5.7 4.0 3.3 3.9
NM 72 2.0 5.3 4.3 4.0 3.9
MSB-30 1.7 7.3 2.3 4.0 3.8
NM 471 2.0 6.0 3.7 3.3 3.8
AZ Common 2.7 5.0 5.0 2.0 3.7
NMS 4 2.3 5.3 2.7 2.3 3.2
Numex-Sahara
3.0 4.3 3.0 2.0 3.1
NMS 14 2.7 4.7 2.3 2.0 2.9
CT-23 1.0 4.7 1.3 3.0 2.5
NMS 2 3.0 3.7 1.3 2.0 2.5
NMS 3 1.3 3.7 2.0 2.3 2.3
LSD VALUE 1.3 1.4 1.5 1.0 0.6
______________________________________
.sup.1 To determine statistical differences among entries, subtract one
entry's mean from another. Statistical differences occur when this value
is larger than the corresponding LSD value (LSD 0.05).
TABLE 4
______________________________________
Frost Tolerance Ratings of Bermudagrass Cultivars, 1990.sup.1
Frost Tolerance Ratings (1-9, 9 = no injury)
Bermuda clone
AR VA Mean
______________________________________
Tifway II 9.0 7.3 8.2
Tufcote 8.7 6.7 7.7
Tifway 8.7 6.3 7.5
CT-23 7.7 7.0 7.3
MSB-10 9.0 5.0 7.0
Midlawn (A-22)
8.0 5.3 6.7
Midfield (E-29)
7.3 5.7 6.5
MSB-30 8.7 4.0 6.3
NM 375 4.7 7.7 6.2
NM 507 7.0 4.7 5.8
A-29 8.0 3.0 5.5
NM 471 7.3 3.7 5.5
FB-119 5.3 5.0 5.2
NMS 2 5.3 4.7 5.0
NMS 4 6.3 3.7 5.0
Texturf 10
6.7 3.3 5.0
AZ Common 6.7 3.0 4.8
NMS 3 5.7 4.0 4.8
Numex-Sahara
5.3 4.3 4.8
NMS 14 5.0 3.7 4.3
RS-1 5.0 3.3 4.2
Midiron 5.0 3.0 4.0
NM 72 4.3 3.7 4.0
Tifgreen 5.7 2.3 4.0
Vamont 2.7 5.3 4.0
Guymon 4.7 3.0 3.8
NM 43 5.0 2.3 3.7
MSB-20 5.0 2.0 3.5
LSD VALUE 1.5 1.3 1.0
______________________________________
.sup.1 To determine statistical differences among entries, subtract one
entry's mean from another. Statistical differences occur when this value
is larger than the corresponding LSD value (LSD 0.05).
TABLE 5
______________________________________
Winter Kill Rating of Bermudagrass Cultivars, 1990.sup.1
Percent Winter Kill: Locations
Bermuda clone
IL MO UB Mean
______________________________________
NM 507 99.0 99.0 84.7 94.2
NM 471 99.0 99.0 81.7 93.2
C1-23 99.0 99.0 80.0 92.7
NMS 14 99.0 99.0 73.3 90.4
AZ-Common 99.0 99.0 70.0 89.3
NM 72 99.0 99.0 61.7 86.6
NMS 4 99.0 98.7 56.7 84.8
Numex-Sahara 99.0 99.0 51.7 83.2
NMS 2 99.0 99.0 50.0 82.7
FB-119 99.0 98.7 48.3 82.0
NMS 3 99.0 99.0 45.0 81.0
MSB-30 99.0 94.3 46.7 80.0
Texturf 10 99.0 98.7 28.3 75.3
NM 375 99.0 99.0 26.7 74.9
Tifway II 99.0 99.0 23.3 73.8
MSB-10 99.0 99.0 21.7 73.2
Tifway 99.0 94.0 18.3 70.4
NM 43 99.0 99.0 10.0 69.3
MAV-20 99.0 99.0 8.3 68.8
Tifgreen 99.0 99.0 8.3 68.8
Midlawn (A-22)
99.0 97.7 0.0 65.6
RS-1 99.0 96.0 1.7 65.6
A-29 99.0 96.0 0.0 65.0
Tufcote 89.3 99.0 0.0 62.8
Guymon 97.7 76.7 13.3 62.6
Vamont 86.0 81.3 0.0 55.3
Midiron 99.0 67.0 0.0 55.3
Midfield (E-29)
99.0 59.7 0.0 52.9
LSD VALUE 8.6 24.6 23.9 11.8
______________________________________
.sup. 1 To determine statistical differences among entries, subtract one
entry's mean from another. Statistical differences occur when this value
is larger than the corresponding LSD value (LSD 0.05).
TABLE 6
______________________________________
Genetic Color Ratings of Bermudagrass Cultivars, 1990.sup.1
Genetic Color Ratings (1-9, 9 = dark green)
Bermuda clone
AR AZ CA2 CA3 LA TX Mean
______________________________________
Tifway II 7.3 7.3 8.0 8.0 8.7 9.0 8.1
Tifway 7.7 7.3 8.0 7.7 8.7 8.0 7.9
NM 375 7.0 7.3 7.3 8.0 9.0 8.3 7.8
MSB-10 7.3 7.0 8.0 8.0 8.0 7.7 7.7
NM 507 6.7 8.0 7.7 7.0 8.3 8.0 7.6
MSB-30 7.3 8.0 7.0 6.3 9.0 8.0 7.6
NM 471 6.3 7.7 7.7 7.7 8.0 8.0 7.6
Tufcote 6.7 6.7 6.7 6.7 7.7 8.3 7.1
NMS 3 5.7 7.0 7.0 6.7 8.0 8.0 7.1
Texturf 10 6.7 6.7 7.0 6.3 7.7 8.0 7.1
Midiron 4.0 6.7 7.7 8.3 7.3 8.0 7.0
NMS 4 6.3 6.3 6.7 6.7 8.3 7.7 7.0
A-29 6.0 6.0 7.3 7.0 7.0 7.3 6.8
Midlawn (A-22)
5.7 5.3 6.7 7.0 7.7 8.0 6.7
MSB-20 6.3 6.7 6.7 6.7 7.0 6.7 6.7
Tifgreen 6.3 6.3 6.7 6.3 7.0 7.3 6.7
NM 72 5.3 7.0 6.7 6.0 7.3 7.3 6.6
Midfield (E-29)
5.3 5.7 7.0 6.7 6.3 8.0 6.5
FB-119 5.3 6.3 6.7 6.3 7.3 7.0 6.5
Guymon 4.7 6.0 6.7 7.0 7.3 7.3 6.5
CT-23 5.3 6.0 6.7 6.7 7.0 7.0 6.4
NM 43 5.7 6.3 6.0 5.7 8.0 6.3 6.3
Numex-Sahara
5.3 5.3 5.7 5.7 8.0 7.7 6.3
NMS 2 5.3 5.3 6.0 5.7 7.0 7.3 6.1
Vamont 5.0 5.3 6.7 6.0 7.3 6.3 6.1
RS-1 4.3 5.7 7.0 6.0 7.0 6.3 6.1
NMJS 14 4.7 4.7 6.3 5.0 7.0 7.3 5.8
AZ Common 5.0 4.0 5.7 5.7 7.3 7.0 5.8
LSD VALUE 1.6 1.0 0.7 0.9 0.7 0.8 0.4
______________________________________
.sup.1 To determine statistical differences among entries, subtract one
entry's mean from another. Statistical differences occur when this value
is larger than the corresponding LSD value (LSD 0.05).
TABLE 7
______________________________________
Leaf Texture Ratings of Bermudagrass Cultivars, 1990.sup.1
Leaf Texture Ratings
(1-9, 9 = very fine)
Bermuda clone
AR1 AZ1 LA1 Mean
______________________________________
MSB-20 8.7 8.0 9.0 8.6
Tifway II 8.3 8.0 9.0 8.4
MSB-10 8.3 8.0 8.7 8.3
NM 43 7.7 8.0 8.7 8.1
Tifway 7.7 8.0 8.7 8.1
Tifgreen 8.3 7.3 8.0 7.9
Midlawn (A-22)
7.3 8.0 8.0 7.8
CT-23 6.3 7.7 8.3 7.4
NM 471 6.0 7.0 8.3 7.1
NM 507 6.0 7.0 8.0 7.0
Tufcote 7.0 6.3 7.7 7.0
NM 72 6.0 7.0 7.3 6.8
NMS 3 6.3 7.0 7.0 6.8
NMS 4 6.0 7.0 7.0 6.7
A-29 6.0 6.7 7.0 6.6
FB-119 5.7 7.0 7.0 6.6
MSB-30 6.0 6.7 7.0 6.6
NM 375 6.0 6.7 7.0 6.6
Midiron 6.3 6.3 7.0 6.6
Texturf 10 5.3 6.3 7.7 6.4
Midfield (E-29)
6.3 6.3 6.0 6.2
Numex-Sahara 5.0 6.0 7.0 6.0
AZ Common 6.3 5.3 6.0 5.9
NMS 2 4.7 5.7 6.3 5.6
RS-1 4.7 6.0 6.0 5.6
Vamont 4.7 5.7 5.3 5.2
NMS 14 4.3 5.3 5.7 5.1
Guymon 3.3 5.7 5.3 4.8
LSD VALUE 1.2 0.7 0.6 0.5
______________________________________
.sup.1 To determine statistical differences among entries, subtract one
entry's mean from another. Statistical differences occur when this value
is larger than the corresponding LSD value (LSD 0.05).
TABLE 8
______________________________________
Summer Density Ratings of Bermudagrass Cultivars, 1990.sup.1
Density Ratings
(1-9, 9 = maximum density)
Bermuda clone AR Mean
______________________________________
MSB-20 9.0 9.0
Tifway 9.0 9.0
Tifway II 9.0 9.0
MSB-10 8.7 8.7
Tufcote 8.0 8.0
Midlawn (A-22) 7.7 7.7
NM 375 7.7 7.7
NM 43 7.7 7.7
NM 471 7.7 7.7
NM 507 7.7 7.7
Texturf 10 7.7 7.7
Tifgreen 7.7 7.7
A-29 7.3 7.3
FB-119 7.3 7.3
MSB-30 7.0 7.0
NM 72 7.0 7.0
Midfield (E-29) 6.7 6.7
Midiron 6.7 6.7
NMS 3 6.7 6.7
NMS 4 6.7 6.7
RS-1 6.7 6.7
CT-23 6.3 6.3
AZ Common 5.7 5.7
NMS 2 5.7 5.7
Vamont 5.7 5.7
Numex-Sahara 5.0 5.0
NMS 14 5.0 5.0
Guymon 4.3 4.3
LSD VALUE 1.1 1.1
______________________________________
.sup.1 To determine statistical differences among entries, subtract one
entry's mean from another. Statistical differences occur when this value
is larger than the corresponding LSD value (LSD 0.05).
TABLE 9
______________________________________
Evaluation of Bermudagrass Clones
at the Horticulture Research Center, Wichita, KS
for Susceptibility to Spring Dead Spot
Number % Kill Total
of % Area in Plot
Bermuda clone.sup.1
Spots w/Spots Spots Quality.sup.2
______________________________________
Midiron 2.0 4.0 26.7 8.7
Midlawn (A-22)
1.3 6.2 21.7 9.0
Midfield (E-29)
2.3 7.8 26.7 8.0
A-29 2.3 12.9 33.3 8.0
Guymon 2.7 10.0 70.0 6.0
Midway 2.0 11.5 43.3 7.0
RS-1 3.3 20.6 70.0 6.3
Texturf 10 3.0 24.7 96.7 5.7
Vamont 3.3 26.1 95.0 4.6
Sunturf 3.3 32.7 90.0 4.7
Tifgreen 4.0 36.11 98.3 4.0
LSD (P = 0.05)
0.3 14.7 17.0 1.4
______________________________________
.sup.1 Other clones in test with complete winter kill in at least two of
the three replicated plot included CT23, NM 43, NM72, NM375, NM 471,
NM507, MSB10, MSB20, MSB30, Tufcote, Tifway, Tifway II, NMS1, NMS3, NMS4,
NMS14, Arizona Common, and FB119.
.sup.2 Plot quality rating where 0 = complete kill of plot, and 9 = 90% o
better coverage of plot.
Claims (1)
1. A new and distinct variety of Bermudagrass as shown and described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/706,272 USPP8168P (en) | 1991-05-28 | 1991-05-28 | Midfield Bermudagrass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/706,272 USPP8168P (en) | 1991-05-28 | 1991-05-28 | Midfield Bermudagrass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| USPP8168P true USPP8168P (en) | 1993-03-02 |
Family
ID=24836889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US07/706,272 Expired - Lifetime USPP8168P (en) | 1991-05-28 | 1991-05-28 | Midfield Bermudagrass |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | USPP8168P (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USPP8963P (en) * | 1993-06-25 | 1994-10-25 | Vaughn; Terrell | Bermuda grass `Vaughn's #1` |
| USPP31695P3 (en) * | 2018-05-25 | 2020-04-21 | The Board Of Regents For Oklahoma State University | Bermudagrass plant named ‘OKC 1131’ |
-
1991
- 1991-05-28 US US07/706,272 patent/USPP8168P/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USPP8963P (en) * | 1993-06-25 | 1994-10-25 | Vaughn; Terrell | Bermuda grass `Vaughn's #1` |
| USPP31695P3 (en) * | 2018-05-25 | 2020-04-21 | The Board Of Regents For Oklahoma State University | Bermudagrass plant named ‘OKC 1131’ |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment |
Owner name: KANSAS STATE UNIVERSITY RESEARCH FOUNDATION, A COR Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:KEEN, RAY A.;REEL/FRAME:005721/0725 Effective date: 19910522 |