Evaluation the effect of combinayion of fongicidal and insecticidal cotton seed treatment on their biological efficacy and seedling growth of cotton.
2004
Hoshyar Fard, Mahmoud | Darvish Mojani, Taghi
This study was conducted to evaluate the side effects of fungicides Carboxin-thiram, Carbendazim,Triadimenol (baytan) and insecticides Thiodicarb larvin)and Imidachlopride (Gaucho) used in seed treatments for controling of early season pests or diseases in cotton crop , on seedling growth and damping –off fungi invitro and field experiments . Experiments were done by blotter method and Agar-pesticide plate method . Results showed that, all treatments of fungicide-larvin decreased seed germination and increased seed rot or anomally in cotton seedlings . Larvin not only decreased length of seedlings but also increased stem diameter and adventitues roots . In addition, insecticides have antifungal effects on test fungi Fusarium and Rhizoctonia in vitro. Therefore ,it is cocluded that use of Gaucho in seed treatments with a fungicide has low deleterious effect on seed germination,seedling growth and field establishments.
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