Influence of irrigation and nitrogen fertilization on the amino acid composition of spring wheat
Sprinkler irrigation on clay soils in southern Finland decreased the protein content of spring wheat flour in five field experiments in the years 1967—70, by 16 ± 4 per cent on an average. The amino acid composition, however, was improved, because the proportion of lysine was increased by 6 ± 4 %. A...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Scientific Agricultural Society of Finland
1972-01-01
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| Series: | Agricultural and Food Science |
| Online Access: | https://journal.fi/afs/article/view/71810 |
| _version_ | 1830357963501469696 |
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| author | Paavo Elonen Liisa Aho Pekka Koivistoinen |
| author_facet | Paavo Elonen Liisa Aho Pekka Koivistoinen |
| author_sort | Paavo Elonen |
| collection | DOAJ |
| description | Sprinkler irrigation on clay soils in southern Finland decreased the protein content of spring wheat flour in five field experiments in the years 1967—70, by 16 ± 4 per cent on an average. The amino acid composition, however, was improved, because the proportion of lysine was increased by 6 ± 4 %. Accordingly, the content of lysine in flour was decreased by irrigation only by 10 ± 5 %. An increase of fertilizer nitrogen from 68 to 144 kg/ha increased the protein content of wheat flour by 19 ± 5 %, but the proportion of lysine in the amino acid composition decreased by 9 ± 4 %. Therefore, the lysine content in flour was increased by nitrogen fertilization only by 8 ± 5 %. It seemed as if urea and ammonium nitrate limestone would have had about the same effect on the quantity and quality of wheat protein. As a consequence of the reversed influences of irrigation and nitrogen fertilization on the wheat protein it was possible, by means of irrigation and an additional nitrogen fertilization, to produce 65 per cent higher grain yields without any noteworthy changes in the contents of protein or amino acids. |
| first_indexed | 2024-12-20T02:32:49Z |
| format | Article |
| id | doaj.art-ed185879b56f44d5a4b410aa02074e33 |
| institution | Directory Open Access Journal |
| issn | 1459-6067 1795-1895 |
| language | English |
| last_indexed | 2024-12-20T02:32:49Z |
| publishDate | 1972-01-01 |
| publisher | Scientific Agricultural Society of Finland |
| record_format | Article |
| series | Agricultural and Food Science |
| spelling | doaj.art-ed185879b56f44d5a4b410aa02074e332022-12-21T19:56:32ZengScientific Agricultural Society of FinlandAgricultural and Food Science1459-60671795-18951972-01-01441Influence of irrigation and nitrogen fertilization on the amino acid composition of spring wheatPaavo Elonen0Liisa Aho1Pekka Koivistoinen2University of Helsinki, Department of Agricultural ChemistryUniversity of Helsinki, Institute of Food Chemistry and TechnologyUniversity of Helsinki, Institute of Food Chemistry and TechnologySprinkler irrigation on clay soils in southern Finland decreased the protein content of spring wheat flour in five field experiments in the years 1967—70, by 16 ± 4 per cent on an average. The amino acid composition, however, was improved, because the proportion of lysine was increased by 6 ± 4 %. Accordingly, the content of lysine in flour was decreased by irrigation only by 10 ± 5 %. An increase of fertilizer nitrogen from 68 to 144 kg/ha increased the protein content of wheat flour by 19 ± 5 %, but the proportion of lysine in the amino acid composition decreased by 9 ± 4 %. Therefore, the lysine content in flour was increased by nitrogen fertilization only by 8 ± 5 %. It seemed as if urea and ammonium nitrate limestone would have had about the same effect on the quantity and quality of wheat protein. As a consequence of the reversed influences of irrigation and nitrogen fertilization on the wheat protein it was possible, by means of irrigation and an additional nitrogen fertilization, to produce 65 per cent higher grain yields without any noteworthy changes in the contents of protein or amino acids.https://journal.fi/afs/article/view/71810 |
| spellingShingle | Paavo Elonen Liisa Aho Pekka Koivistoinen Influence of irrigation and nitrogen fertilization on the amino acid composition of spring wheat Agricultural and Food Science |
| title | Influence of irrigation and nitrogen fertilization on the amino acid composition of spring wheat |
| title_full | Influence of irrigation and nitrogen fertilization on the amino acid composition of spring wheat |
| title_fullStr | Influence of irrigation and nitrogen fertilization on the amino acid composition of spring wheat |
| title_full_unstemmed | Influence of irrigation and nitrogen fertilization on the amino acid composition of spring wheat |
| title_short | Influence of irrigation and nitrogen fertilization on the amino acid composition of spring wheat |
| title_sort | influence of irrigation and nitrogen fertilization on the amino acid composition of spring wheat |
| url | https://journal.fi/afs/article/view/71810 |
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