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| DOI: | 10.21273/HORTSCI.34.3.493A |
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| Web URL(s): | https://journals.ashs.org/hortsci/view/journals/hortsci/34/3/article-p493A.xml?rskey=OLskJz
Last checked: 11/15/2019
Requires: PDF Reader
Notes: Item is within a single large file; Abstract only |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Jiang, Zhongchun;
Sullivan, W. Michael;
Sawyer, Carl D.;
Hull, Richard J. |
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| Author Affiliation: | Department of Plant Sciences, University of Rhode Island, Kingston, RI |
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| Title: | Genotypic and temporal variation in nitrate uptake rate by Kentucky bluegrass |
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| Section: | Crop physiology
Other records with the "Crop physiology" Section
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| Meeting Info.: | 96th Annual International Conference of the American Society for Horticultural Science, Minneapolis, MN: July 27-31, 1999 |
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| Source: | HortScience. Vol. 34, No. 3, June 1999, p. 493. |
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| Publishing Information: | Alexandria, VA: American Society for Horticultural Science |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Genotypes; Nitrogen uptake; Poa pratensis; Cultivar evaluation; Variations
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| Cultivar Names: | Barzan; Blacksburg; Conni; Dawn; Eclipse; Gnome |
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| Abstract/Contents: | "Turfgrass cultivars that have superior nitrate uptake ability are needed for the protection of ground water from pollution by excess nitrate. Information on temporal variation of nitrate absorption is also needed to enhance the environmental safety of turfgrass N fertilization programs. Our objectives were to evaluate Kentucky bluegrass (Poa pratenis L.) cultivars for their differences in nitrate uptake rate (NUR) and temporal variation in NUR. Six cultivars (Barzan, Blacksburg, Connie, Dawn, Eclipse, and Gnome) were propagated from individual tillers and six plants of each cultivar were generated from one mother plant. Plants were grown in silica sand, mowed weekly, and watered daily with half-strength modified Hoagland's nutrient solution containing 1mM nitrate. When 5 months old, the plants were excavated, the roots were washed to remove sand, and plants were then transferred to 120-mL black bottles. After 24 hours in tap water, the plants were supplied with half-strength nutrient solution containing 0.5 mM nitrate, and the solutions were replaced daily for 8 days. NURs expressed as micromoles per plant per hour were calculated from solution nitrate deletion data. Significant genotypic differences in NUR were found: 'Blacksburg'>'Connie'>'Dawn'>'Barzan'= 'Eclipse'>'Gnome'. Significant temporal variation in NUR was also found, with NUR on the second day more than the first day after tap water. A significant interaction was noted between genotype and time. Temporal variation was greatest in 'Blacksburg', while none noted in 'Connie' and 'Eclipse'. In 'Barzan' and 'Gnome', NUR on the last day was higher than the first day." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Jiang, Z., W. M. Sullivan, C. D. Sawyer, and R. J. Hull. 1999. Genotypic and temporal variation in nitrate uptake rate by Kentucky bluegrass. HortScience. 34(3):p. 493. |
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| DOI: 10.21273/HORTSCI.34.3.493A |
| Web URL(s):
https://journals.ashs.org/hortsci/view/journals/hortsci/34/3/article-p493A.xml?rskey=OLskJz
Last checked: 11/15/2019
Requires: PDF Reader
Notes: Item is within a single large file; Abstract only |
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MSU catalog number: SB 1 .H64 |
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