ISHS Acta Horticulturae 773: XXVII International Horticultural Congress - IHC2006: International Symposium on Citrus and Other Tropical and Subtropical Fruit Crops
DROUGHT STRESS TOLERANCE OF ACTINIDIA ARGUTA AND ACTINIDIA ERIANTHA |
| Authors: | Youn-Seop Jo, Hye-Sung Cho, Moon-Young Park, Geuk-Pil Bang, Wol-Soo Kim |
| Keywords: | leaf scorch, leaf wilting, photosynthesis |
| Abstract:
To assay the drought tolerance of Actinidia arguta and A. eriantha, 1-year old rooted cuttings were planted in pot before 6 months of the experiment. When irrigation was stopped, leaf wilting of A. chinensis occurred on day 5 after treatment, followed by A. deliciosa and A. eriantha on day 6, A. arguta on day 7. Leaf scorch of A. chinensis and A. deliciosa occurred after 6 days of treatment. On the other hand leaf scorch of A. eriantha and A. arguta were recorded on the 8th and 10th day, respectively. So, A. arguta seemed most tolerant to drought. During the drought period, the photosynthetic rate did not show big differences among species until day 5 after treatment and it decreased sharply on day 10, however, that of A. arguta was slightly decreased. A. arguta and A. eriantha are considered more tolerant to drought condition than A. chinensis and A. deliciosa. | |
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