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| Publication Type:
| Refereed |
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| Author(s): | Richardson, T. B.;
Mancino, C. F. |
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| Author Affiliation: | Mancino: Department of Agrononmy, The Pennsylvania State University, University Park, PA 16802, USA. |
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| Title: | Nitrogen uptake efficiency of twenty two Buchloë dactyloides (Nutt.) Engelm. genotypes |
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| Section: | Physiology and ecology: Contributed papers
Other records with the "Physiology and ecology: Contributed papers" Section
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| Meeting Info.: | Sydney, Australia: 1997 |
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| Source: | International Turfgrass Society Research Journal. Vol. 8, No. Part 2, 1997, p. 1322-1328. |
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| Publishing Information: | Blacksburg, VA: International Turfgrass Society |
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| # of Pages: | 7 |
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| Keywords: | TIC Keywords: Nitrogen uptake; Nitrogen efficiency; Bouteloua dactyloides; Variety trials; Nutrient availability; Root weight; Genetic variability; Breeding; National Buffalograss Test-1991
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| Abstract/Contents: | "The ability to absorb nitrogen (N) is an important trait to consider in the breeding and utilisation of turfgrasses. This would be especially true in the development of a new turf species, such as Buchloë dactyloides (Nutt.) Engelm., expected to perform well under low N conditions. Information on N uptake efficiency of B. dactyloides is lacking. Comparisons of N uptake and N uptake efficiency were made between 22 National Turfgrass Evaluation Program (NTEP) entries of B. dactyloides using a hydroponics greenhouse system. Nitrate-N depeletion was measured at 192 hours after plants had been transferred from either non-N limiting (210 mg l₋₁ nitrate-N) or N-limiting (21 mg l₋₁ nitrate-N) half-strength Hoagland's solution into Hoagland's solution containing 210 mg l₋₁ nitrate-N. Significant differences in total N uptake and N uptake efficiency (mg N g₋₁ root dry weight) were found to exist between entries. These parameters increased folllowing N-limiting pre-treatment indicating that N stress promotes N uptake and uptake efficiency when N becomes available again. A negative relationship existed between N uptake efficiency and total root weight." |
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| Language: | English |
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| References: | 13 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Richardson, T. B., and C. F. Mancino. 1997. Nitrogen uptake efficiency of twenty two Buchloë dactyloides (Nutt.) Engelm. genotypes. Int. Turfgrass Soc. Res. J. 8(Part 2):p. 1322-1328. |
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