Comparative physiological responses between cereal crops and grassy weed to safener containing herbicide formulations [electrnoic resource].

Includes references.

Field studies were conducted to study the comparative physiological responses between cereal crops. (winter and summer) and grassy weeds to the ready made safener containing herbicide formulations. The herbicides were fenoxaprop-p-ethyl + safener (Puma super), clodinafop-propargyl + safener (Topic) and acetochlor with two formulations (Acetop and Harness). The data indicated that Puma super and Topic caused a significant enhancement in all the tested physiological parameters, they gave the highest induction in glutathione content extracted from the root, glutathione-S-transferases activities in both wheat and barley shoot and root system and total chlorophyll, these increases were much more in wheat than that in barley, this is due to the differences on the tolerant degree. On the other hand, they significantly decreased these parameters in all tested weeds, particularly canary grass was the most affected weed. Also, the two acetochlor formulations caused significant increase in all the tested physiological parameters in maize with no significant differences between them.

Summary in Arabic.

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