ISHS Acta Horticulturae 335: International Symposium on Irrigation of Horticultural Crops
WATER RESPONSE OF TOMATO IN PRESENCE OF "CORKY ROOT" (PYRENOCHAETA LYCOPERSICI SCHNEIDER ET GERLACH) IN SOUTHERN ITALY |
| Authors: | A. D'Amato, E. Lahoz, I. Giordano, A. Pentangelo |
| Abstract:
The results of a two-year irrigation trial (1990–1991) carried out on tomato grown in field conditions in the Sele valley are reported. The irrigation schemes tested were the following: 100% (ks=1,0), 80% (ks=0,8) and 60% (ks=0,6) mET reintegration; distribution of volumes bringing soil water levels to field capacity to a depth of 45 cm; early interruption of the irrigation season at 35–50% red fruits. The irrigation regime influenced the "corky root" phenomenon: higher disease index values corresponded to higher water supply levels (62.2 at 100% mET reintegration). With 80% mET reintegration the number of fruits affected by "blossom end rot" was low (5 fruits/m2) and the "corky root" severity index was reduced to 39.5, while yield and other data were not significantly different from the values obtained with the higher water supply level. | |
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