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| DOI: | 10.1080/01904167.2016.1237650 |
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| Web URL(s): | http://www.tandfonline.com/doi/full/10.1080/01904167.2016.1237650
Last checked: 11/06/2017
Access conditions: Item is within a limited-access website
http://www.tandfonline.com/doi/pdf/10.1080/01904167.2016.1237650
Last checked: 11/06/2017
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Access conditions: Item is within a limited-access website |
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| Publication Type:
| Report |
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| Author(s): | Mahdavi, Shahla;
Kafi, Mohsen;
Fallahi, Esmaeil;
Shokrpour, Majid;
Tabrizi, Leila |
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| Author Affiliation: | Mahdavi and Fallahi: Parma Research and Extension Center, University of Idaho, Parma, Idaho; Kafi, Shokrpour, and Tabrizi: Department of Horticultural Science and Engineering, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran |
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| Title: | Drought and biostimulant impacts on mineral nutrients, ambient and reflected light-based chlorophyll index, and performance of perennial ryegrass |
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| Source: | Journal of Plant Nutrition. Vol. 40, No. 16, 2017, p. 2248-2258. |
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| Publishing Information: | New York, New York: Marcel Dekker, Inc. |
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| # of Pages: | 11 |
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| Related Web URL: | http://www.tandfonline.com/doi/abstract/10.1080/01904167.2016.1237650
Last checked: 11/06/2017
Notes: Abstract only |
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| Keywords: | TIC Keywords: Biostimulants; Chlorophyll index; Comparisons; Drought stress; Lolium perenne; Mineral nutrition; Performance; Species evaluation; Turfgrass quality; Water availability
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| Geographic Terms: | Intermountain West, US |
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| Abstract/Contents: | "Water shortage is a critical issue worldwide, and it may adversely impact nonfood landscape plants. Thus, the impact of two levels of evapotranspiration-based (ETc) water stresses and two biostimulants consisting of s-abscisic acid (s-ABA) and glycine betaine (GB), and their combined applications on perennial ryegrass (Lolium perenne) under climatic and soil conditions of the Intermountain West, USA, were studied. Clippings with 50% ETc had higher percentage dry weight (DW) but lower fresh weight (FW) and chlorophyll index (CI) than those with 75% ETc. The performance rating of plots with 75% ETc was significantly higher (better) than those receiving the 50% ETc treatment. Clippings with the 75% ETc treatment had higher concentrations of nitrogen (N), nitrate, phosphorous (P), sulfur (S), potassium (K), sodium (Na), and copper (Cu) than those with the 50% ETc treatment. Considering all mineral nutrient values, CIs, and performance ratings, we conclude that the application of 75% ETc is sufficient for maintaining a healthy turfgrass with a satisfactory appearance, while we can save 25% water as compared to the application of water at 100%. The application of biostimulants had no effect on clipping or root FWs, DWs, or percentage DWs. Clippings from GB-treated turfgrass had significantly higher N than those from all other biostimulants or non-treated control. Additionally, clippings from the plots with the GB treatment had significantly higher S, K, and Cl but lower Zn. Clippings from the s-ABA-treated turfgrass also had significantly higher K than those in non-treated control. Average performance ratings in s-ABA and GB, and s-ABA and GB were significantly higher than those in non-treated control, underscoring the values of these biostimulants in the reduction of drought stress." |
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| Language: | English |
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| References: | 60 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Mahdavi, S., M. Kafi, E. Fallahi, M. Shokrpour, and L. Tabrizi. 2017. Drought and biostimulant impacts on mineral nutrients, ambient and reflected light-based chlorophyll index, and performance of perennial ryegrass. J. Plant Nutr. 40(16):p. 2248-2258. |
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| DOI: 10.1080/01904167.2016.1237650 |
| Web URL(s):
http://www.tandfonline.com/doi/full/10.1080/01904167.2016.1237650
Last checked: 11/06/2017
Access conditions: Item is within a limited-access website
http://www.tandfonline.com/doi/pdf/10.1080/01904167.2016.1237650
Last checked: 11/06/2017
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: b2516613a |
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