استحثاث المقاومة الجهازية في نبات الباذنجان Solanum melongena L. ضد فايروس موزائيك الخيار Cucumber Mosaic Virus باستخدام البكتريا chroococcum Azotobacter و Azosprillum braselinse

Abstract EN

This study was conducted to identify the possibility of stimulating systemic resistance in eggplants plants against cucumber mosaic virus (CMV) using two types of bacteria Azotobacter chroococcum and Azosprillum braselinse, as well as the pesticide Actara (Thiamethoxam).

A plastic house experiment on eggplant seeds or seedlings showed that treatments including immersing seeds for 60 minutes or seedlings for one minute in bacterial suspension of A.chroococcum with a concentration of 6 × 109 , A.

braselinse with a concentration of 7 × 108, mixture of both bacteria, irrigation treatments, combination of immersing and irrigation and irrigation with Actara, significantly increased eggplant yield and vigor(stem thickness).

All seed treatments had better results than seedlings treatments.

Either irrigating or immersing seeds with A.

chroococcum gave the highest values of yield and stem thickness compared to that obtained from the control treatment , 863.33 g, 9.5mm, 509.00 g and 5.80 mm, respectively.

The same treatment on seedlings showed also the best results on the same parameters giving yield of 809.67 g and stem thickness of 8.04 mm compared to 517.67 g and 5.47 mm for of the control, respectively.