Effect of the whitefly Bemisia tabaci (gennadius) infestation on amino acids, phenol content and ph value in some vegetable plants in greenhouses [electronic resource].

Includes references.

Some biochemical changes (amino acids, phenol content and pH value) were determined in leaves of six vegetable plant species (cantaloupe, cucumber, zucchini, eggplant, tomato and sweet pepper) infested with Bemisia tabaci (Gennadius) in greenhouse. It can be concluded that the highest values of amino acids content were in the cantaloupe and eggplant, but the lowest were in zucchini and sweet pepper. Amino acids content of all infested plants was less than that of non infested plants during all seasons. The infestation led to significant increase in phenol content of all infested plants. Regard to the pH value, the lower plant leaves recorded the highest followed by middle and upper leaves. The infestation ofB. tabaci led to decrease the pH value in all vegetable leaves except for cucumber.

Summary in Arabic.

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