Full TGIF Record # 174179
Item 1 of 1
DOI:10.2135/cropsci2010.05.0296
Web URL(s):https://acsess.onlinelibrary.wiley.com/doi/10.2135/cropsci2010.05.0296
    Last checked: 03/24/2024
    Access conditions: Item is within a limited-access website
https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2135/cropsci2010.05.0296
    Last checked: 03/24/2024
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
Publication Type:
i
Refereed
Author(s):Lee, Hyeonju; Bremer, Dale J.; Su, Kemin; Keeley, Steven J.
Author Affiliation:Lee: Dep. of Plant Pathology; Bremer and Keeley: Dep. of Horticulture, Forestry & Recreation Resources, Kansas State Univ., Manhattan, KS; Su: Dep. of Horticulture and Landscape Architecture, Oklahoma State Univ., Stillwater, OK
Title:Relationships between normalized difference vegetation index and visual quality in turfgrasses: Effects of mowing height
Section:Research
Other records with the "Research" Section
Source:Crop Science. Vol. 51, No. 1, January 2011, p. 323-332.
Publishing Information:Madison, WI: Crop Science Society of America
# of Pages:10
Keywords:TIC Keywords: Biomass determination; Canopy reflectance; Evapotranspiration; Leaf area index; Mowing height; Normalized Difference Vegetation Index; Spectral analysis; Visual evaluation
Abstract/Contents:"Canopy spectral reflectance may provide an objective means to evaluate visual quality of turfgrass, but evaluations of quality may be confounded by cultural practices that affect reflectance, such as mowing height. In this 2-yr study near Manhattan, KS, we examined effects of mowing height on relationships between normalized difference vegetation index (NDVI) and visual quality ratings in Kentucky bluegrass (KBG; Poa pratensis L., 'Apollo') and in a KBG O Texas bluegrass (Poa arachnifera Torr.) hybrid (HBG; 'Thermal Blue'). Mowing heights were 7.62 cm (high) and 3.81 cm (low). The NDVI averaged 4.5 to 7% greater in high- than in low-mown plots. Distinct regression models of visual quality were found at each mowing height and in each species (r2 from 0.40 to 0.81); separate relationships between NDVI and visual quality were also found between years in the same plots. Correlations between NDVI and visual quality were stronger at high than at low mowing heights, possibly because of greater green biomass at high mowing heights. The 95% confidence intervals surrounding predictions of visual quality from NDVI ranged from ^D+-1.34 to 2.75 (on a 1-to-9 scale). Thus, lack of precision is a concern when using these models for detection of differences between treatments. Results indicate that when using NDVI to evaluate turfgrass quality, evaluations should be limited to plots maintained at the same mowing height and with the same species to reduce variability in NDVI."
Language:English
References:40
See Also:Interpretive summary appears in Golf Course Management, 84(8) August 2016, p. 72, R=274094. R=274094
Note:Figures
Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Lee, H., D. J. Bremer, K. Su, and S. J. Keeley. 2011. Relationships between normalized difference vegetation index and visual quality in turfgrasses: Effects of mowing height. Crop Sci. 51(1):p. 323-332.
Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=174179
If there are problems with this record, send us feedback about record 174179.
Choices for finding the above item:
DOI: 10.2135/cropsci2010.05.0296
Web URL(s):
https://acsess.onlinelibrary.wiley.com/doi/10.2135/cropsci2010.05.0296
    Last checked: 03/24/2024
    Access conditions: Item is within a limited-access website
https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2135/cropsci2010.05.0296
    Last checked: 03/24/2024
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
Find Item @ MSU
MSU catalog number: b2211522a
Find from within TIC:
   Digitally in TIC by record number.
Request through your local library's inter-library loan service (bring or send a copy of this TGIF record)