تاثير العدوى المختلطة بفطر Ascochyta rabiei المسبب للفحة الاسكوكيتا وفيروس موزاييك الفصة Alfalfa mosaic virus على اعراض الاصابة ومكونات الغلة لنباتات الحمص

The interaction between Ascochyta rabiei and alfalfa mosaic virus in mixed infection was studied on two genotypes of Chickpea Gab3 and Gab5. The results showed no effect on the period of incubation for the two pathogens. Mixed infection plants exhibited more severe symptoms of A.rabiei when compared with those plants affected only by A.rabiei; while this infection never affected the symptoms of the virus. The number of pods and their weights, both wet and dry, decreased in infected plants of A. rabiei and Amv when compared with healthy ones. The loss in pod number was between 76.7 - 80.68% to 88.5-90.81% for wet weight, and 90.6-90.50% for dry weight. On the other hand, when comparing infected plants with A. rabiei with those of both A. rabiei and AMV, it was found that the loss in number of pods was about 28% -57.5%. It was about 54-67.03% for the wet weight, and 53-67.03% for the dry weight. Yet, mixed infection showed no effects compared with plants infected with the virus only.