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ID 10575
Eprint ID
10575
FullText URL
Thumnail 93_39_43.pdf 1.42 MB
Title Alternative
耐乾・耐湿性に関するヤマブドウ(Vitis colignetiae Pilliat)と生食用ブドウ品種の比較
Author
Okamoto, Goro
Ueki, Keiji
Imai, Takashi
Abstract
Excess-water and drought tolerance of Vitis coignetiae grapevines were compared against 2 V. vinifera cultivars, Muscat of Alexandria and Rizamat; and 2 hydrids (V. vinifera × V. labrusca), Delaware and Kyoho. Three-year-old cutting vines of each, planted in root zone restricted beds in a plastic house, were tested under water logged and irrigation-withheld conditions starting from early and mid July, respectively. Control vines were irrigated at pF 2.2 of soil water tension. Effects of water logging were firstly observed in V. coignetiae vines where the basal leaves turned dark red after 12 days, and then abscised after 3 weeks. Under 2 weeks of water logged conditions, net assimilation rate (NAR) of the primary leaves decreased signficantly in V. coignetiae and the hybrid cultivars, Kyoho leaves turned yellow 3 weeks after the onset of the treatment and then dried out 4 weeks later. Leaves of Rizamat, Delaware, and Muscut of Alexandria vines exhibited a slight color fading or leaf curling after 4 weeks of irrigation withholding, but these symptoms did not extend thereafter. Leaf NAR and transpiration rate decreased significantly in all tested vines after 10 days of irrigation withholding, though the decrease was rapid in Kyoho vines. These results indicate that V. coignetiae vines have a lower tolerance for water logging than other ciltivars, whereas they have moderate drought tolerance.
Keywords
Vitis coignetiae
drought tolerance
excess-water tolerance
NAR
leaf drying
Published Date
2004-02
Publication Title
岡山大学農学部学術報告
Publication Title Alternative
Scientific reports of the Faculty of Agriculture, Okayama University
Volume
volume93
Issue
issue1
Publisher
岡山大学農学部
Publisher Alternative
Faculty of Agriculture,Okayama University
Start Page
39
End Page
43
ISSN
0474-0254
NCID
AN00033029
Content Type
Departmental Bulletin Paper
language
英語
File Version
publisher
Refereed
False
Eprints Journal Name
srfa