Tuesday, 8 November 2005
12

Spectroradiometry Analysis of Drought and Salinity Stressed Turfgrass.

Yoshiaki Ikemura and Bernd Leinauer. New Mexico State University, Department of Agronomy and Horticulture, Knox and College, Skeen Hall RM140, Las Cruces, NM 88003

Rapidly growing cities require increasing amounts of water to sustain life, which result in increased competition for the limited water resources. Because of restrictions on the use of potable water for non-essential uses, such as landscape irrigation, many municipalities require that only reclaimed effluent or saline groundwater be used to irrigate golf courses and other turf areas. However, the high salt content in these waters can cause deteriorating turfgrass stands if frequency of irrigation and quantities of water are not adjusted. Therefore, proper irrigation scheduling in turf stands requires monitoring of drought and salinity stress. Research at New Mexico State University was conducted to investigate if spectroradiometry analysis can be used to assess drought and salinity stress in turfgrass. The spectroscopy readings were taken using a LabSpec Pro under a controlled light environment. Results of spectral analysis and leaf water content will be summarized and presented.

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