The effect of seed desinfection on seedling vigor and pathogene of seed of small grains

Abstract

The results of the application of fungicide (Zorasan, and Raxil)on the germination energy, seed germination of winter wheat and spring oats as well as the abundance of fungus from genus (Fusarium and Aspergillus) were presented in this report. The experiment was conducted in the Laboratory for seed testing and phytopathology in Centre for small grains in Kragujevac. The experiment was included four treatments: control (treatment 1) optimal dose for investigated fungicide(treat. 2), twice lower dose of recommended (treatment 3) and for 20% higher from recommended (treatment 4). The highest values of germination energy and seed germination of wheat and oats obtained on the control. The application of Zorosan was negative affected on the germination energy and seed germination of wheat, especially for cv. KG-56. Seed germination of wheat, in-which applied Raxill was uniform and high (> 90%). The appearance of abnormal wheat seedlings was very high, especially after the application of Zorosan. The abundance the fungus from genus Fusarium and Aspergillus was the highest on the control. Higher abundance of Aspergillus on wheat and oats seeds was determined after the application of Zorosan. Higher abundance of Fusarium on wheat and oats seeds was determined only on the control. .

Keywords

• Aspergillus spp.
• germination energy
• fungicide
• Fusarium
• seed germination
• abnormal seedlings
• spring oats
• winter wheat
• seed