HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Shearman, R. C. Articles by Beard, J. B. Search for Related Content PubMed Articles by Shearman, R. C. Articles by Beard, J. B. Agricola Articles by Shearman, R. C. Articles by Beard, J. B.

Environmental and Cultural Preconditioning Effects on the Water Use Rate of Agrostis palustris Huds., Cultivar Penncross¹

Preconditioning effects of light intensity, growing temperature, irrigation frequency, cutting height, mowing frequency, and nitrogen nutrition level on water use rate and stomatal density of ‘Penncross’ creeping bentgrass (Agrostis palustris Huds.) were investigated. Water use rates were recorded as percent moisture lost during exposure to (1) 33 C, (2) 40% relative humidity, (3) lux light intensity, and (4) a constant airflow of 186 sec^–1 in a special wind tunnel apparatus. Stomatal density counts were made at 430X from nitrocellulose replications of the leaf surface.

The preconditioning effects of cutting height, light intensity, and nitrogen nutrition level had the greatest influence on water use rate. Irrigation and mowing frequency were intermediate in their influence. Growing temperature had the least effect among the factors considered.

Stomatal density was influenced most by light intensity, and growing temperature had the next greatest effect. Irrigation frequency had an intermediate effect. Nitrogen nutrition level had the least influence of the factors studied. Water use rate was positively correlated (r = 0.88) to stomatal density in the light intensity study. However, it was negatively correlated (r = –0.98) to stomatal density for the nitrogen nutrition level study. No significant correlations were observed for growing temperature or irrigation frequency.

Key Words: Cutting height • Growing temperature • Irrigation frequency • Light intensity • Mowing frequency • Nitrogen nutrition • Penncross creeping bentgrass

² Extension Associate and Professor, Department of Crop and Soil Sciences, Michigan State University, East Lansing, Michigan 48823.

Received for publication November 15, 1972.

This article has been cited by other articles:

				R. C. Shearman Fifty Years of Splendor in the Grass Crop Sci., September 8, 2006; 46(5): 2218 - 2229. [Abstract] [Full Text] [PDF]

				D. J. Bremer Evaluation of Microlysimeters Used in Turfgrass Evapotranspiration Studies Using the Dual-Probe Heat-Pulse Technique Agron. J., November 1, 2003; 95(6): 1625 - 1632. [Abstract] [Full Text] [PDF]

				W. E. Richie, R. L. Green, G. J. Klein, and J. S. Hartin Tall Fescue Performance Influenced by Irrigation Scheduling, Cultivar, and Mowing Height Crop Sci., November 1, 2002; 42(6): 2011 - 2017. [Abstract] [Full Text] [PDF]

				K. S. Erusha, R. C. Shearman, T. P. Riordan, and L. A. Wit Kentucky Bluegrass Cultivar Root and Top Growth Responses When Grown in Hydroponics Crop Sci., May 1, 2002; 42(3): 848 - 852. [Abstract] [Full Text] [PDF]

				E.H. Ervin and A.J. Koski Trinexapac-ethyl effects on kentucky bluegrass evapotranspiration Crop Sci., January 1, 2001; 41(1): 247 - 250. [Abstract] [Full Text] [PDF]