Effect of seed storage and seed treatment of some crops with pesticides on seed quality and seedling growth

Abstract

This study was conducted during the period 2021-2022 in the pesticides research laboratory at the Faculty of Agriculture, Damascus University. The study aimed to evaluate the effect of the storage and treatment the seeds of wheat (Sham 8), chickpea (Gab 3) and pea (Baladi) with the fungicides Chlorpyriphos –ethyl, Imidaclopride and the fungicides Carboxin + Thiram and Difenoconazole at different concentrations on the percentage of germination and seedling growth when stored for 90 days in laboratory conditions. It was found from the results that the storing the seeds without any treatment for a period of 90 days gave a significant decrease in the activity of the seeds and the resulting seedling growth indicators compared to the seeds of the control that were not stored. The use of fungicides and insecticides at double concentration gave negative and phytotoxcicty effects to the seeds and reduced the average germination rates and seedling growth indicators with significant differences with stored control seeds of wheat, chickpea and pea.

Finally, the effect of storage and seed treatment with insecticides and fungicides varied according to the type of seed, as pea seeds were the most sensitive to storage and treatment with pesticides. Thus, germination tests can provide important information that helps in estimating the storage capacity of seeds and the effects of pesticides on them.