Tetraploid perennial ryegrass variety T3
OwnerKenneth Hignight, Debra Rushinventors
Life of this patent
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Abstract
A tetraploid perennial ryegrass variety known as breeder's code T3, and seed used to produce the grass are provided. The grass is useful as a short lived, improved turfgrass on golf courses, athletic fields and other areas using seeded turfgrasses. The grass is also useful in overseeding of dormant warm season grasses since its lack of heat tolerance allows for a smooth transition for the warm-season grass. The ryegrass will provide a green cover during the winter months but will die out when the temperatures increases to the point which allow the warm-season grass to grow.
Claims19
A tetraploid perennial ryegrass variety having the identifying characteristics of T3 deposited under American Type Culture Collection accession number PTA-6495.
A true breeding tetraploid perennial ryegrass having one or more distinguishing characteristics selected from the group consisting of leaf blade width of less than 6.50 mm, leaf blade length of less than 37.00 cm, leaf blade height of less than 35.00 cm, leaf blade sheath length of less than 12.00 cm, mature plant height of less than 72.00 cm, spike length of less than 45.00 cm, flag leaf sheath length of less than 17.00 cm, flag leaf width of less than 6.00 mm, flag leaf length of less than 30.00 cm, flag leaf height of less than 47.00 cm, a 1,000 seed weight of less than 3,500 grams, lemma length of less than 8.0 mm, lemma width of less than 2.0 mm, glume length of less than 11.0 mm, spike length (spikelet to apex) of less than 235.0 mm, spikelet length of less than 15.0 mm, spike weight of less than 0.50 grams, a rapid establishment rate, a dark turf color, resistance to mower shred, a lower vertical extension rate, and a rapid and full transition rate.
A method of establishing a cool season turf, comprising the step of overseeding an existing turf of warm season turfgrass with a tetraploid ryegrass.
16 A method for producing a tetraploid perennial ryegrass turfgrass seed, comprising the steps of the doubling of the chromosome complement producing a parent turfgrass plant and harvesting the resulting seed, wherein said first seed produces first parent turfgrass plant of claim 3.
A tetraploid turfgrass seed produced by the method of claim 16.
Dependencies are inferred from the claim text.