Abstract
Information is limited on the recovery growth of zoysiagrass (Zoysia spp. Willd.) after sod harvest. ‘Meyer’ and DALZ 0102 (both Z. japonica Steud.) and eighteen zoysiagrass progeny originating from crosses between a Z. matrella (L.) Merr. × Z. japonica or ‘Emerald’ (Z. matrella × Z. pacifica Goudsw.) × Z. japonica were evaluated for sod recovery growth after harvest in Manhattan in 2008 and 2009, and in Olathe, KS, in 2009 and 2010. Sod pieces (51 cm wide × 102 cm long × 5 cm thick) were harvested on 9 July 2008 at Manhattan and on 8 July 2009 at Olathe using a mechanical sod cutter. Sod recovery growth in areas of harvested strips was determined by taking an overhead digital image of a 40- by 35-cm area to determine percentage green coverage. At 60 days after harvest in Manhattan, coverage ranged from 17% to 97%; a progeny from Z. matrella × Meyer (97% coverage) demonstrated superior recovery growth to Meyer (38% coverage). Recovery growth was slower in Olathe where irrigation was applied less frequently, and all progeny were similar to Meyer until 15 July of the summer following harvest, when individual progeny from ‘Cavalier’ × Chinese Common and Emerald × Meyer were superior to Meyer. The potential for faster recovery after harvest compared to Meyer may be attractive to sod producers seeking to maximize the number of harvests from a zoysiagrass sward.
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