Effect of spraying with humic acid, gibberellin and smoked water on the vegetative and physiological traits for tomato crop

Abstract EN

ABSTRACT The experiment was conducted at the Protected Agriculture Research Station (B), College of Agriculture, University of Baghdad, Al-Jadriyah, in order to study the effect of spraying different concentrations of humic acid (0, 75 ml.100 L-1), gibberellin (0, 100, 200 ppm) and smoked water (0, 1: 250, 1: 500, 1: 1000 v/v) on the growth and yield of tomatoes under the conditions of protected agriculture for the autumn season (2016-2017).

The main results of this research can be summarized as follows: The treatment of spraying Gibberellin (G1) and smoked water (S2) was significantly excelled in most traits of the vegetative growth, both as individuals and interacted factors, as well as the significant effect for humic interaction with Gibberellin or interacting it with smoked water and The excelling of triple interactions for for the factors in all traits under study, while it was not observed significant effect for the spraying treatments with humic acid in any traits.