Wilt-based irrigation in Kentucky bluegrass: effects on visual quality and irrigation amounts among cultivars

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dc.contributor.author Lewis, Jason D.
dc.contributor.author Bremer, Dale J.
dc.contributor.author Keeley, Steven J.
dc.contributor.author Fry, Jack D.
dc.date.accessioned 2012-09-05T18:33:04Z
dc.date.available 2012-09-05T18:33:04Z
dc.date.issued 2012-09-05
dc.identifier.uri http://hdl.handle.net/2097/14642
dc.description.abstract A critical challenge facing the turf industry is increasingly limited water supplies. Identifying cultivars that use less water while maintaining acceptable quality may mitigate irrigation demands. Our objectives were to identify Kentucky bluegrass (Poa pratensis L.) (KBG) cultivars and phenotypic groups that maintained better visual quality with less water. Thirty bluegrass selections were evaluated in a 2-yr field study under a rainout shelter near Manhattan, KS. Irrigation (2.5 cm) was applied when >50% of a plot exhibited visible wilt symptoms. Visual quality was rated daily. Average irrigation applications ranged widely from 23.3 cm (mean = 2.2 mm d[superscript]−1) in Bedazzled to 44.9 cm (mean = 4.2 mm d[superscript]−1) in Kenblue, and days to wilt between irrigations ranged from 6.4 d in Kenblue to 13.1 d in Cabernet. Visual quality averaged at or slightly below 6.0, defined as “minimally acceptable,” but this may be adequate when water conservation is a priority and some dormancy is tolerable; irrigation at <50% wilt is recommended for improved quality. Based on statistical range tests, 15 of the 30 cultivars were grouped as both receiving the least water and having the greatest visual quality. Overall, the Compact America and Mid-Atlantic KBG groups exhibited the greatest days to wilt and received the least water. Results suggest that Compact America and Mid-Atlantic phenotypes have the greatest potential for integrating reduced water inputs with maintenance of acceptable visual quality. en_US
dc.relation.uri https://www.crops.org/publications/cs/abstracts/52/4/1881 en_US
dc.rights Permission to archive granted by Crop Science, August 29, 2012. en_US
dc.subject Wilt-based irrigation en_US
dc.subject Kentucky bluegrass en_US
dc.subject Visual quality en_US
dc.subject Turf management en_US
dc.title Wilt-based irrigation in Kentucky bluegrass: effects on visual quality and irrigation amounts among cultivars en_US
dc.type Article (author version) en_US
dc.date.published 2012 en_US
dc.citation.doi doi:10.2135/cropsci2012.01.0033 en_US
dc.citation.epage 1890 en_US
dc.citation.issue 4 en_US
dc.citation.jtitle Crop Science en_US
dc.citation.spage 1881 en_US
dc.citation.volume 52 en_US
dc.contributor.authoreid bremer, skeeley, jfry en_US

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