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COLD-TOLERANCE OF SOME AUTOCHTHONOUS AND IMPORTED COMMERCIAL SEEDLESS GRAPEVINE (Vitis Vinifera) CULTIVARS IN IRAN |
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| รหัสดีโอไอ | |
| Creator | Hamed Doulati Baneh, Mohammad Aslanpour |
| Title | COLD-TOLERANCE OF SOME AUTOCHTHONOUS AND IMPORTED COMMERCIAL SEEDLESS GRAPEVINE (Vitis Vinifera) CULTIVARS IN IRAN |
| Contributor | - |
| Publisher | TuEngr Group |
| Publication Year | 2562 |
| Journal Title | International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies |
| Journal Vol. | 10 |
| Journal No. | 8 |
| Page no. | 1017-1027 |
| Keyword | Cold stress, Electrolyte leakage, Cold index, Cambium cold index, Cane electrolyte leakage, Bud electrolyte leakage, Cane cold index. |
| URL Website | http://tuengr.com/Vol10_8.html |
| Website title | ITJEMAST V10(8) 2019 @ TuEngr.com |
| ISSN | 2228-9860 |
| Abstract | Winter cold is one of the main environmental factors limiting the production of grapes in Iran. Grape cultivars belonging to the Vinifera species are very sensitive to winter cold and depending on the cultivar, they are usually affected by cold damage in the range between -15?C and -20?C. There is genetic diversity among cultivars and even clones of a single cultivar with regard to cold tolerance. In this research, the cold tolerance of several cultivars of foreign and domestic commercial grape cultivars was evaluated. One-year-old 8-buds canes of the studied genotypes were harvested from the vineyards of the Urmia Kahriz Horticultural Research Station after the fall of leaves and they were placed a freezer temperature below zero (-15?C, -18?C, -21?C, and -24?C and 4?C as control). After applying the treatments, the number of open buds in greenhouse conditions and the rate of primary and secondary buds death were determined. Moreover, the electrolyte leakage of the buds and canes was measured. With increasing cold intensity, damage to primary and secondary buds increased and there was a significant difference between the cultivars in cold tolerance. Domestic cultivars showed a higher tolerance than foreign cultivars. Among the foreign cultivars, two cultivars of Thomson Seedless and Superior were more tolerant to cold. The results of this research are valuable in terms of determining the new seedless cultivars with a higher tolerance for cultivation in relatively cold weather regions. |
