| Abstract/Contents: | The objective of the study was to evaluate the quality of 26 selected zoysiagrasses throughout each year for 3 years. During the three summers, the study included determination of the amount of irrigation water required to prevent stress, maintain acceptable turf quality, and to maintain a persistent turf cover. The study also evaluated spring green up, green color retention in the fall, and ability of the grasses to maintain a monoculture stand. Those entries that required low volumes of water to prevent stress include Belair, El Toro, DALZ8512, and DALZ8514. Belair, El Toro, DALZ8507, DALZ8510, DALZ8512, and DALZ8514 required the least water to maintain at least 50 percent green turf cover. Percent green turf ground cover doubled for all entries within 7 days after termination of stress. Notable recovery was observed for DALZ8507, DALZ8512, DALZ8514, Emerald and El Toro. Five entries, DALZ8501, DALZ8502, DALZ 8513, DALZ8522, and Emerald, consistently held good green color later into the year than other entries. The lowest color ratings, at these late fall dates, were observed for El Toro, DALZ8514, and DALZ8504. In 1990, spring green cover developed fastest for Korean Common, Meyer, and DALZ8511, with about 75 percent green cover by March 30. Those entries that were slowest to produce green cover in all 3 years include Cashmere, DALZ8501, DALZ8513, DALZ8522, and DALZ8523, with less than 25 percent average green cover. |
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