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| DOI: | 10.21273/HORTSCI.33.2.206c |
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| Web URL(s): | https://journals.ashs.org/hortsci/view/journals/hortsci/33/2/article-p206c.xml
Last checked: 11/14/2019
Requires: PDF Reader |
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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;
Hull, Richard J. |
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| Author Affiliation: | Department of Plant Sciences, University of Rhode Island, Kingston, RI 02881 |
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| Title: | Nitrate uptake and utilization in shoots and roots of four turfgrasses |
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| Section: | Abstracts of the ASHS Northeast Region Annual Meeting
Other records with the "Abstracts of the ASHS Northeast Region Annual Meeting" Section
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| Source: | HortScience. Vol. 33, No. 2, April 1998, p. 206-207. |
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| Publishing Information: | Alexandria, VA: American Society for Horticultural Science |
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| # of Pages: | 2 |
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| Keywords: | TIC Keywords: Breeding aims; Cultivar evaluation; Cynodon dactylon; Festuca arundinacea; Lolium perenne; Nitrate reductase; Nitrogen efficiency; Nitrogen uptake; Nitrogen use; Poa pratensis; Root growth; Shoot growth
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| Cultivar Names: | Cheyenne; Merit; Tribute; APM |
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| Abstract/Contents: | "Breeding programs can be developed to produce turfgrass varieties that utilize N efficiently if metabolic traits leading to efficient N utilization are identified. To achieve this objective, we selected four turfgrass species that differ in N use efficiency and compared nitrate uptake rate (NUR) by roots and nitrate reductase activity (NRA) in shoots and roots. Grasses were grown in modified Hoagland's nutrient solutions. NUR was determined by monitoring nitrate depletion in the solutions. NRA was assayed using an in vivo method. NUR was significantly higher in 'Merit' Kentucky bluegrass, an inefficient N user, than in 'Cheyenne' bermudagrass, an efficient N user. 'Tribute' tall fescue and 'APM' perennial ryegrass, two grasses intermediate in N use, were in-between. Shoot NRA showed a similar pattern of variation, with 'Merit' significantly higher than 'Cheyenne'. Root NRA showed less variation. 'Cheyenne' had a significantly higher proportion of nitrate reduced in its roots (>60% of plant total) than did 'Merit' (<10%), suggesting that greater partitioning of nitrate reduction to roots might contribute to more efficient utilization of nitrate-N by bermudagrass." |
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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., and R. J. Hull. 1998. Nitrate uptake and utilization in shoots and roots of four turfgrasses. HortScience. 33(2):p. 206-207. |
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| DOI: 10.21273/HORTSCI.33.2.206c |
| Web URL(s):
https://journals.ashs.org/hortsci/view/journals/hortsci/33/2/article-p206c.xml
Last checked: 11/14/2019
Requires: PDF Reader |
| 
MSU catalog number: SB 1 .H64 |
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