Zoysia grass plant (ZT-4)
1989
Whiting, H.F.
I disclose that my herein invention of a new variety of Zoysia grass plant, was discovered by me through my cross-pollination of selected varieties of Zoysia grass plants, then through asexual repropagation, selected the new and distinct variety of Zoysia grass plant ZT-4, which produces an excellent uniform turfgrass surface from stolons and rhizomes, then held complete green color throughout two winter periods. This new variety of Zoysia grass plant produces a 40% to 50% greater stolon and rhizome growth rate at low winter temperatures. The anthers of the new claimed variety of Zoysia grass plant, are pale yellow color as defined by the ISCC-NBS centroid color chart; the stigmas are yellowish white color, as defined by the ISCC-NBS centroid color chart; the stolon internodes of the new claimed variety of Zoysia grass plant are closer together, and thinner in width. The entire plant of the new claimed variety of Zoysia grass plant, is glabrous except on the upper leaf surface which is sparsely pubescent, also on the inside of the collar just above the ligule where several long hairs are present. The electrophoresis isoenzyme banding patterns show distinct uniqueness of the new claimed variety of Zoysia grass plant designated ZT-4.
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