Abstract
Detached wheat heads (8 days post anthesis) were grown in liquid culture using media containing various nitrogen sources at different concentrations. Grain development in terms of dry weight, nitrogen, starch and protein were equivalent whether the nitrogen was supplied as either a complete spectrum of amino acids or as glutamine, asparagine or ammonium nitrate. Where the concentration of nitrogen in the culture medium was varied while maintaining the sucrose concentration constant, no variations were observed in the rate of grain dry weight or starch accumulation. Nitrogen per grain and percentage grain nitrogen increased with increasing concentrations of nitrogen in the culture medium. Percentage grain nitrogen was higher in the 'high protein' cultivar Timgalen than in the 'low protein' cultivar WW 15 at equivalent nitrogen concentrations in the culture medium, but differences in percentage proteins were only small.
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Claims 8
Claim · model-written summary
Grain dry weight was equivalent under amino acids, glutamine, asparagine and ammonium nitrate.
- Taxon
- Wheat
Triticum aestivumt0 - Treatment
- a complete spectrum of amino acidse0
- Outcome
- dry weighte0
- Direction
- equivalente0
- Comparator
- glutamine, asparagine or ammonium nitratee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain development in terms of dry weight, nitrogen, starch and protein were equivalent whether the nitrogen was supplied as either a complete spectrum of amino acids or as glutamine, asparagine or ammonium nitrate”
t0“Wheat”
Claim · model-written summary
Grain nitrogen, starch and protein were equivalent across nitrogen sources.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- a complete spectrum of amino acidse0
- Outcome
- nitrogen, starch and proteine0
- Direction
- equivalente0
- Comparator
- glutamine, asparagine or ammonium nitratee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain development in terms of dry weight, nitrogen, starch and protein were equivalent whether the nitrogen was supplied as either a complete spectrum of amino acids or as glutamine, asparagine or ammonium nitrate”
t0“Wheat”
Claim · model-written summary
Changing medium nitrogen did not vary grain dry-weight accumulation rate at constant sucrose.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- concentration of nitrogen in the culture medium was variede0
- Outcome
- rate of grain dry weighte0
- Direction
- no variationse0
- Qualifier
- maintaining the sucrose concentration constante0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Where the concentration of nitrogen in the culture medium was varied while maintaining the sucrose concentration constant, no variations were observed in the rate of grain dry weight or starch accumulation”
t0“Wheat”
Claim · model-written summary
Changing medium nitrogen did not vary grain starch accumulation rate at constant sucrose.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- concentration of nitrogen in the culture medium was variede0
- Outcome
- starch accumulatione0
- Direction
- no variationse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Where the concentration of nitrogen in the culture medium was varied while maintaining the sucrose concentration constant, no variations were observed in the rate of grain dry weight or starch accumulation”
t0“Wheat”
Claim · model-written summary
Nitrogen per grain increased as medium nitrogen concentration increased.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- increasing concentrations of nitrogen in the culture mediume0
- Outcome
- Nitrogen per graine0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen per grain and percentage grain nitrogen increased with increasing concentrations of nitrogen in the culture medium”
t0“Wheat”
Claim · model-written summary
Percentage grain nitrogen increased as medium nitrogen concentration increased.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- increasing concentrations of nitrogen in the culture mediume0
- Outcome
- percentage grain nitrogene0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen per grain and percentage grain nitrogen increased with increasing concentrations of nitrogen in the culture medium”
t0“Wheat”
Claim · model-written summary
Timgalen had higher percentage grain nitrogen than WW 15 at equivalent medium nitrogen.
- Taxon
- WheatTriticum aestivumt0
- Material
- Timgalene0
- Outcome
- Percentage grain nitrogene0
- Direction
- highere0
- Comparator
- WW 15e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Percentage grain nitrogen was higher in the 'high protein' cultivar Timgalen than in the 'low protein' cultivar WW 15 at equivalent nitrogen concentrations in the culture medium”
t0“Wheat”
Claim · model-written summary
Percentage protein differences between Timgalen and WW 15 were small.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- differences in percentage proteinse0
- Direction
- smalle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“differences in percentage proteins were only small”
t0“Wheat”
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