Full TGIF Record # 68456
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Web URL(s):https://listings.lib.msu.edu/iowat/1988.pdf#page=77
    Last checked: 01/12/2017
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Publication Type:
i
Report
Author(s):Burt, M. G.; Christians, N. E.
Author Affiliation:Burt: Turfgrass Graduate Student and Research Associate; and Christians: Professor, Iowa State University
Title:Summer stress survival of Kentucky bluegrass cultivars
Source:1988 Iowa Turfgrass Research Report. 1988, p. 72-73.
Publishing Information:Ames, Iowa: Iowa State University Extension
# of Pages:2
Series:FG-454
Keywords:TIC Keywords: Water Stress; Poa pratensis
Abstract/Contents:Kentucky bluegrass cultivars are known to vary in their responses to environmental stress and cultural practices. Great variability has been observed over many seasons in the USDA Kentucky bluegrass cultivar evaluations at the Iowa State University Horticulture station. The low-maintenance received 1 lb N/1000 ft2/yr and is nonirriaged. The high-maintenance receives 4 lb N/1000 ft2/yr and supplemental irrigation as needed. The objectives are : 1) determine if certain root, shoot, and growth characteristics are common to cultivars grouped in the high-or low-maintenance classification; 2) Simulate drought conditions in the greenhouse and to monitor the cultivars response to and recover from this imposed water stress; 3) Relate information from this and the research of others to Kentucky bluegrass and cultivar response to environmental stresses and cultural practices as a means to explain why these cultivars perform as they do. The Kentucky bluegrass characterization studies will be done using field data, greenhouse studies, and microscope techniques. All field data will be collected from the low-maintenance cultivar trial. The greenhouse experiments will monitor root and shoot growth of individual cultivar seedling grown. Microscope study will characterize the cultivar by looking specially at leaf stomal distribution and number also look at crown tissue that has been subjected to water stress to what common to crown tissue that survives prolonged drought conditions. No date has been analyzed yet from the greenhouse drought simulation study. However; preliminary experimentation shows fairly even drying and recovery time. Likewise, no data have been generated from the microscope work. The greenhouse characterization study has yielded some interesting results. Low-maintenance cultivars have significantly narrower leaves and more leaf folding, longer sheaths, less leaf angle from vertical, and fewer leaves per tiller. They also had greater weekly clipping weight. Even through the tillering data was quite variable, the low-maintenance cultivars generally produced more tillers. This preliminary data indicate that certain cultivars may possess adaptations that enable them to better tolerate low-maintenance cultivars. Further research may generate more data to substantiate the variability that exists between cultivars.
Language:English
References:0
Note:"July, 1988"
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Burt, M. G., and N. E. Christians. 1988. Summer stress survival of Kentucky bluegrass cultivars. Iowa Turfgrass Res. Rep. p. 72-73.
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https://listings.lib.msu.edu/iowat/1988.pdf#page=77
    Last checked: 01/12/2017
    Requires: PDF Reader
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MSU catalog number: SB 433 .A1 I55
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