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| Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/1993jou664.pdf
Last checked: 09/29/2008
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| Access Restriction: | Certain MSU-hosted archive URLs may be restricted to legacy database members. |
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| Publication Type:
| Refereed |
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| Author(s): | Bowman, Daniel C. |
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| Author Affiliation: | Univ. of Nev. |
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| Title: | The effects of nitrogen deficiency on tissue NO3, reduced N, soluble carbohydrates, and uptake of NO3 and NH4 by perennial ryegrass |
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| Meeting Info.: | 7th International Turfgrass Society Research Conference, Palm Beach, FL, USA, 18-24 July, 1993 |
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| Source: | International Turfgrass Society Research Journal. Vol. 7, 1993, p. 664-672. |
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| Publishing Information: | Overland Park, KS: INTERTEC Publishing Corp. |
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| # of Pages: | 9 |
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| Keywords: | TIC Keywords: Absorption rate; Carbohydrates; Fructans; Lolium perenne; Nitrates; Nitrogen deficiency; Nitrogen uptake; Root growth; Sucrose; Tissue testing
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| Abstract/Contents: | "Nitrogen (N) is the nutrient most limiting to plant growth. Consequently, it is extremely important to understand the regulation of N absorption. The N status of the plant (degree of N deficiency) has strong effect on N uptake, but the mechansism of control is unknown. This study was undertaken to determine if changes in growth and tissue N pools due to imposed nitrogen deficiency correlated with deficiency-enhanced N uptake by perennial ryegrass (Lolium perenne L.) turf. Absorption of both NO3 and NH4 increased after only 4 hr of N deprivation, and remained elevated through a 7 day period. Root growth was stimulated while leaf growth was inhibited by N deficiency. Tissue NO3 was depleted with a half life of 2 days. Soluble carbohydrates, especially sucrose and fructans, increased in leaves, verdure, and roots in response to N deprivation. However, the rapid onset of deficiency-enhanced N uptake was not associated with apparent changes in either tissue N or carbohydrate pools. The data suggest that the N uptake capacity of healthy turf roots should normally be in the enhanced state, since field grown turf is usually under some degree of N stress. Therefore, under favorable field conditions, very rapid uptake of both NO3 and NH4 by turfgrasses should be the normal situation." |
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| Language: | English |
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| References: | 25 |
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| Note: | "Chapter 94"
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Bowman, D. C. 1993. The effects of nitrogen deficiency on tissue NO3, reduced N, soluble carbohydrates, and uptake of NO3 and NH4 by perennial ryegrass. Int. Turfgrass Soc. Res. J. 7:p. 664-672. |
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| Web URL(s):
https://archive.lib.msu.edu/tic/its/articles/1993jou664.pdf
Last checked: 09/29/2008
Requires: PDF Reader |
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MSU catalog number: SB 433 .I522 v.7 |
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