ISHS Acta Horticulturae 573: International Symposium on Techniques to Control Salination for Horticultural Productivity
RESPONSE OF SATSUMA MANDARIN (CITRUS UNSHIU MARC.) TREES BUDDED ON TRIFOLIATE ORANGE (P. TRIFOLIATA) TO SALINITY DUE TO SEAWATER INTRUSION |
| Authors: | H.Z. Can, U. Aksoy, S. Anaç, Y.S. Kukul, B. Okur |
| Keywords: | Satsuma mandarin, Citrus unshiu, salinity, growth, gas exchange, yield |
| Abstract:
The research aimed at assessing the level of sea water intrusion as well as its impact on productivity of Satsuma trees. Salinity parameters of irrigation water and soil, physiological parameters as photosynthesis and transpiration rates, relative water content, and stomatal density and fruit yield were determined. Most of the sampling was carried out prior to and during the period of irrigation in summer and during harvest. Among the analysed parameters, transpiration (E), photosynthesis (A) and water use efficiency (WUE=A/E), leaf area, stomatal density and relative water content (RWC), were found to be highly correlated and representing the case. The yield was reduced drastically towards the sea line with increasing salinity. All the determined salinity parameters proved to exert cumulative adverse effect on yield and tree vigour. The unit gas exchange capacity of the leaf was reduced parallel to the decreases in leaf area and stomatal density. | |
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