Full TGIF Record # 210084
Item 1 of 1
DOI:10.21273/HORTSCI.47.8.1163
Publication Type:
i
Refereed
Author(s):Arghavani, Masoud; Kafi, Mohsen; Babalar, Mesbah; Naderi, Roohangiz; Hoque, Md. Anamul; Murata, Yoshiyoki
Author Affiliation:Arghavani, Kafi, Babalar, and Naderi: Department of Horticultural Sciences, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran; Hoque and Murata: Graduate School of Natural Science and Technology, Okayama University, Okayama, Japan
Title:Improvement of salt tolerance in Kentucky bluegrass by trinexapac-ethyl
Section:Turf management
Other records with the "Turf management" Section
Source:HortScience. Vol. 47, No. 8, August 2012, p. 1163-1170.
# of Pages:8
Publishing Information:Alexandria, Virginia: American Society for Horticultural Science
Keywords:TIC Keywords: Gibberellic acid; Growth regulator evaluation; Poa pratensis; Salt tolerance; Trinexapac-ethyl
Abstract/Contents:"Trinexapac-ethyl (TE) is a popular plant growth regulator in the turfgrass industry that inhibits gibberellic acid (GA) biosynthesis and effectively reduces leaf elongation and subsequent clipping production. This greenhouse sand culture experiment was conducted to determine effects of TE application on kentucky bluegrass (Poa pratensis L.) responses to salinity stress. The five salinity levels (0, 20, 40, 60, and 80 mm NaCl) were applied in nutrient solutions and TE treatments (0, 1, and 1.7 g/100 m2) were applied twice at 4-week intervals. Under non-saline conditions and low level salinity conditions, application of TE at 1 g/100 m2 (TE1) increased turf quality (TQ), leaf total non-structural carbohydrates (TNC), and chlorophyll (Chl) content. In high salinity, TE1 alleviated the decline in TQ, antioxidant enzyme activities, leaf TNC, Chl, and K+ content. In addition, treated turf with TE at 1 g/100 m2 had lower proline, Na+, and malondialdehyde (MDA) contents. However, the adverse effects of high salinities were more pronounced when turf was treated by TE at 1.7 g/100 m2 (TE1.7), suggesting that effects of TE on salt tolerance vary with its dosages and salinity levels. We concluded that moderate inhibition of GA biosynthesis by TE enhances salt tolerance in kentucky bluegrass and suggest that enhancement is the result of the maintenance of antioxidant activities, leading to more root growth and greater levels of TNC and Chl content. Chemical names used: 4-(cyclopropyl-Β-hydroxymethylene)-3, 5-dioxocyclohexanecarboxylic acid ethyl ester (trinexapac-ethyl)."
Language:English
References:55
Note:Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Arghavani, M., M. Kafi, M. Babalar, R. Naderi, Md. A. Hoque, and Y. Murata. 2012. Improvement of salt tolerance in Kentucky bluegrass by trinexapac-ethyl. HortScience. 47(8):p. 1163-1170.
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DOI: 10.21273/HORTSCI.47.8.1163
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