Carbohydrate storage in buds of Kerner, Solaris, Regent and Rondo grapevines
The purpose of this study was; to compare sugar content and composition in buds of four in Sweden commercially grown grapevine cultivars (‘Kerner’, ‘Regent’, ‘Rondo’ and ‘Solaris’), at three different vineyards in Scania and try to investigate the relationship between sugar content and cold hardines...
| Autor principal: | |
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| Formato: | Second cycle, A2E |
| Lenguaje: | sueco Inglés |
| Publicado: |
2009
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| Materias: | |
| Acceso en línea: | https://stud.epsilon.slu.se/307/ |
| _version_ | 1855570171798749184 |
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| author | Emanuelsson, Carin |
| author_browse | Emanuelsson, Carin |
| author_facet | Emanuelsson, Carin |
| author_sort | Emanuelsson, Carin |
| collection | Epsilon Archive for Student Projects |
| description | The purpose of this study was; to compare sugar content and composition in buds of four in
Sweden commercially grown grapevine cultivars (‘Kerner’, ‘Regent’, ‘Rondo’ and ‘Solaris’),
at three different vineyards in Scania and try to investigate the relationship between sugar
content and cold hardiness. The concentration of fructose, glucose, sucrose, raffinose and
stachyose was determined in the lower positioned buds, 2-8 and upper positioned buds, 9-14
of the grapevine shoots with high performance liquid chromatography (HPLC).
The cultivar ‘Solaris’ seems to be more cold tender than ‘Kerner’, ‘Regent’ and ‘Rondo’
when comparing the ratio of fructose and glucose to sucrose. This ratio is strongly related to
cold hardiness in Vitis vinifera grapevine cultivars. The ratio increases as the two
monosaccharides fructose and glucose accumulates. No clear difference in the ratio could be
seen between the other cultivars.
Lower positioned buds showed a higher ratio than upper positioned buds, significantly in
more than half of the observations (53.3 %).
Differences between vineyards showed no clear patterns when comparing the ratio. This is
probably because of differences in many cultural practices that may influence cold hardiness
such as choice of rootstock, fertilisation strategy, temperature in the vineyard, and occurrence
of diseases.
No correlation was found between the temperature on the sampling day and the mean
temperature five days preceding sampling and sugar concentration. |
| format | Second cycle, A2E |
| id | RepoSLU307 |
| institution | Swedish University of Agricultural Sciences |
| language | swe Inglés |
| publishDate | 2009 |
| publishDateSort | 2009 |
| record_format | eprints |
| spelling | RepoSLU3072015-10-21T14:28:44Z https://stud.epsilon.slu.se/307/ Carbohydrate storage in buds of Kerner, Solaris, Regent and Rondo grapevines Emanuelsson, Carin Plant physiology and biochemistry The purpose of this study was; to compare sugar content and composition in buds of four in Sweden commercially grown grapevine cultivars (‘Kerner’, ‘Regent’, ‘Rondo’ and ‘Solaris’), at three different vineyards in Scania and try to investigate the relationship between sugar content and cold hardiness. The concentration of fructose, glucose, sucrose, raffinose and stachyose was determined in the lower positioned buds, 2-8 and upper positioned buds, 9-14 of the grapevine shoots with high performance liquid chromatography (HPLC). The cultivar ‘Solaris’ seems to be more cold tender than ‘Kerner’, ‘Regent’ and ‘Rondo’ when comparing the ratio of fructose and glucose to sucrose. This ratio is strongly related to cold hardiness in Vitis vinifera grapevine cultivars. The ratio increases as the two monosaccharides fructose and glucose accumulates. No clear difference in the ratio could be seen between the other cultivars. Lower positioned buds showed a higher ratio than upper positioned buds, significantly in more than half of the observations (53.3 %). Differences between vineyards showed no clear patterns when comparing the ratio. This is probably because of differences in many cultural practices that may influence cold hardiness such as choice of rootstock, fertilisation strategy, temperature in the vineyard, and occurrence of diseases. No correlation was found between the temperature on the sampling day and the mean temperature five days preceding sampling and sugar concentration. 2009-06-24 Second cycle, A2E NonPeerReviewed application/pdf swe https://stud.epsilon.slu.se/307/1/emanuelsson_c_090624.pdf Emanuelsson, Carin, 2009. Carbohydrate storage in buds of Kerner, Solaris, Regent and Rondo grapevines. Second cycle, A2E. Alnarp: (LTJ, LTV) > Horticulture (until 121231) <https://stud.epsilon.slu.se/view/divisions/4810.html> urn:nbn:se:slu:epsilon-4-100 eng |
| spellingShingle | Plant physiology and biochemistry Emanuelsson, Carin Carbohydrate storage in buds of Kerner, Solaris, Regent and Rondo grapevines |
| title | Carbohydrate storage in buds of Kerner,
Solaris, Regent and Rondo grapevines |
| title_full | Carbohydrate storage in buds of Kerner,
Solaris, Regent and Rondo grapevines |
| title_fullStr | Carbohydrate storage in buds of Kerner,
Solaris, Regent and Rondo grapevines |
| title_full_unstemmed | Carbohydrate storage in buds of Kerner,
Solaris, Regent and Rondo grapevines |
| title_short | Carbohydrate storage in buds of Kerner,
Solaris, Regent and Rondo grapevines |
| title_sort | carbohydrate storage in buds of kerner,
solaris, regent and rondo grapevines |
| topic | Plant physiology and biochemistry |
| url | https://stud.epsilon.slu.se/307/ https://stud.epsilon.slu.se/307/ |