Effect of postinoculation water stress under saturation and drought conditions on the severity of fusarium root rot in processing tomatoes.

Abstract

The effect of water stress under saturation and drought conditions after inoculation of processing tomatoes on the severity of Fusarium root rot was evaluated in pot experiments Plants were either inoculated with Fuvarium solani or not inoculated (controls), sulfur was applied to half pots of each treatment. Plants were stressed by withholding water after inoculation or saturated by water regulary percentage of water content, field capacity and permanent with values were recorded for different soil treatments. Also severity of symptoms, as percentage of damping on and length of roots were recorded after four weeks from agriculture, while roots showed maximum lengths, symptoms were found to be severe in saturated applications of inoculated pianis In the absence of saturated water stress , Mar to showed more resistant to infection with the phytopathogen fungus.