ISHS Acta Horticulturae 254: II International Peach Symposium
IMPORTANCE OF WATER CONSUMPTION ON CALCIUM CONTENT AND PROTECTION OF PEACHES PREDISPOSED TO BACTERIAL DIEBACK BY GROWING IN ACID SOILS |
| Authors: | A. VIGOUROUX, C. BUSSI |
| Abstract:
In France two different acid soils dramatically predispose peaches to bacterial dieback (Ps. syringae pv. persicae). Analysis of soil profiles revealed a poor ability to provide a good water supply for trees. By cultivating young peaches in large (250 l) weighable containers filled with acid soil, we compared the influence of water and calcium supply for improvement of tree resistance. Two levels of irrigation were combined with demineralised or calcareous water and with control and limed soil. After artificial inoculations on twigs, increase of water supply provided a better protection effect against bacterial infection than calcium supplied by water or soil. The increase of water also resulted in a marked increase in peach calcium content which seems to be strongly related with tree resistance. | |
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