Multicellular living organisms and unmodified parts thereof and – Plant – seedling – plant seed – or plant part – per se – Higher plant – seedling – plant seed – or plant part
Reexamination Certificate
2008-05-06
2008-05-06
Kruse, David H. (Department: 1638)
Multicellular living organisms and unmodified parts thereof and
Plant, seedling, plant seed, or plant part, per se
Higher plant, seedling, plant seed, or plant part
C800S298000, C800S260000
Reexamination Certificate
active
11281287
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.
REFERENCES:
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Harivandi. 1986. California Turfgrass Culture, vol. 36, Nos. 1-4, pp. 1-4.
Ahloowalia. 1967. Genetica 38: 471-484.
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Jensen, K.B., Asay, K.H., Waldron, B.L., Dry Matter Production of Orchardgrass and Perennial Ryegrass at Five Irrigation Levels, Crop Science, 2001, 479-487, 41, United States.
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Sugiyama, S., Polyploidy and Cellular Mechanisms Changing Leaf Size: Comparison of Diploid and Autotetraploid Populations in Two Species of Loium, Annals of Botany, 2005, 931-938, 96, Oxford University Press.
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Sugiyama, S., Differentiation in Competitive Ability and Cold Tolerance Between Diploid and Tetraploid Cultivars in Lolium Perenne, Euphytica, 1998, 55-59, 103, Kluwer Academic Publishers, Netherlands.
Norrington-Davies, J., Harries, J.H., Competition studies in diploid and tetraploid varieties of Lolium perenne, 1977, 405-410, 88, Great Britain.
Frame, J., Merrilees, D.W., The effect of tractor wheel passes on herbage production from diploid and tetraploid ryegrass swards, Grass and Forage Science, 1996, 13-20, 51, Scotland, UK.
Smith, K.F., Simpson R.J., Culvenor, R.A., Humphreys, M.O., Prud-Homme, M.P., Oram, R.N., The effects of ploidy and a phenotype conferring a high water-soluble carbohydrate concentration on carbohydrate accumulation, nutritive value and morphology of perennial ryegrass (Lolium perenne L.), Journal of Agricultural Science, 2001, 65-74, 136, Cambidge University Press, Cambidge, UK.
Hignight Kenneth
Rush Debra
Kruse David H.
Robinson Keith O.
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