و الفطر الميكوريزي Meloidogyne incognita تأثير التفاعل التضادي بين نيماتودا تعقد الجذور في تحفيز نمو نبات الباذنجان Glomus mosseae

Abstract EN

To study the antagonistic effect between mycorrhizal fungi Glomus mosseae and root-knot nematode Meloidogyne incognita, and its corporate effect on eggplant growth, infected plants with nematode and fungi were collected from eggplant fields growing in Damascus Countryside Governorate, Syria.

pot experiment was conducted during 2007 growing season.

Results showed that the treatment with the nematode decreased shoot weight significantly after two months in comparison with control, but the treatment with the mycorrhizal fungi increased it by 18.8% and 25.5% after two and three months respectively in comparison with control, and by significant differences based on phynological phase of plant, and the results assured that the infection of the nematode reduced root weight by 16.5% and production by 18.8% after five months in comparison with control, but the inoculom with the G.

mosseae have achieved different levels of increasing with or without nematode up to time of add nematode and fungi, and it showed that the nematode decreased the mycorrhizal percentage of G.

mosseae by 28.5% at the end of test in comparison with control, and the high reduction was achieved when the nematode was added to the root before fungi.

The existence of the fungi decreased the number of nematode,s juveniles in the soil by 29.3% after five months in comparison with control when the fungi was added before the nematode to the root, and reduced gall index on the roots significantly and with different percents in different treatments, the analysis of soil essential elements (NPK, C/N, organic percent) showed the role of mycorrhizal fungi G.

mosseae in increasing the absorption of phosphor from the soil by 30.5% in comparison with control, which caused increasing of shoot and root weight and production.