Full TGIF Record # 71855
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DOI:10.21273/HORTSCI.35.7.1350
Web URL(s):https://journals.ashs.org/hortsci/view/journals/hortsci/35/7/article-p1350.xml?rskey=oo4238
    Last checked: 11/15/2019
    Requires: PDF Reader
Publication Type:
i
Refereed
Author(s):Jiang, Zhongchun; Sullivan, Michael W.; Hull, Richard J.
Author Affiliation:Jiang: Post-Doctoral Research Associate; Sullivan and Hull: Professors, Department of Plant Sciences, University of Rhode Island, Kingston, RI
Title:Nitrate uptake and nitrogen use efficiency by Kentucky bluegrass cultivars
Section:Turf management
Other records with the "Turf management" Section
Source:HortScience. Vol. 35, No. 7, December 2000, p. 1350-1354.
# of Pages:5
Publishing Information:Alexandria, VA: American Society for Horticultural Science
Keywords:TIC Keywords: Cultivar evaluation; Nitrogen uptake; Nitrogen efficiency; Poa pratensis; Choice of cultivar; Nitrogen partitioning; Genetic variability
Cultivar Names:Blacksburg; Conni; Dawn; Eclipse; Barzan; Gnome
Abstract/Contents:"Efficient utilization of fertilizer-nitrogen (N) by turfgrass is probably related to N uptake efficiency of roots and metabolic efficiency of absorbed N in roots and shoots. This study evaluated Kentucky bluegrass (Poa pratensis L.) cultivars for potential differences in nitrate uptake rate (NUR), temporal variation in NUR, and the relationship between NUR and N use efficiency (NUE), defined as grams dry matter per gram N. Six cultivars were propagated from tillers of seeded plants, grown in silica sand, mowed weekly, and watered daily with a complete nutrient solution containing 1.0 mM nitrate. A nutrient depletion method from an initial nitrate concentration of 0.5 nM was used to determinde NUR of 5-month-old plants. NUR (μmol⁻¹ per plant) of the six cultivars ranked as follows: 'Blacksburg', while none was noted in 'Conni' or 'Eclipse'. Cultivar differences in NUE were significant in fibrous roots, rhizomes, and leaf sheaths, but not in leaf blades and thatch. Total nitrate uptake was positively related to total N recovered and total plant dry matter, but NUR based on root weight was negatively correlated with NUE of the whole plant."
Language:English
References:18
Note:Graphs
Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Jiang, Z., M. W. Sullivan, and R. J. Hull. 2000. Nitrate uptake and nitrogen use efficiency by Kentucky bluegrass cultivars. HortScience. 35(7):p. 1350-1354.
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DOI: 10.21273/HORTSCI.35.7.1350
Web URL(s):
https://journals.ashs.org/hortsci/view/journals/hortsci/35/7/article-p1350.xml?rskey=oo4238
    Last checked: 11/15/2019
    Requires: PDF Reader
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MSU catalog number: SB 1 .H64
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