Effects of Some Environmental Stresses on Bio Indicators and Population Densities of Glomus mossae Fungi Associated with Wheat (Triticum aestivum L.) Crop

Abstract

Field experiment was conducted to determine the effect of soil salinity and Fusariume germanium on population of Glomus mossae Fungi within root of wheat as manifested by the fungal spore’s number, density infection and the percentage of infected root by Glomus mossae. The results didn’t show effect the environmental stresses on comparability reproductive for Glomus mossae fungi associated with wheat crop. The results significant increase (P = 0.05) in average of spores number, intensity infection and the percentage of infected root (43.00, 60.8 and 72.67) by Glomus mossae treatment. A significant increasing happened in the percentage of germination seed of wheat with Glomus mossae fungi in soil Electric conductivity 2.64 dS/m^-1 was (75.7%, chlorophyll content 32.33 spad and plant height 40.00 cm) compared with treatment infection Fusariume germanium fungi in the soil with Electric conductivity 14.5 dS/m^-1 since the ratio of germination was (24.3%, chlorophyll content in the plant 13.67 spad and height plant 12.00 cm). On the other hand the results recorded a significant increasing in macronutrient (N, P and K%) by Glomus mossae treatment which recorded (2.567, 0.272 and 2.283%) respectively compared with treatment infection Fusariume germanium fungi (1.7, 0.100 and 1.800%) respectively. Interaction treatment showed a significant increasing by Glomus mossae treatment with soil Electric conductivity 14.5 dS/m^-1 in terms of fungal spores number, density infection and the percentage of infected root of Glomus mossae (55.00, 75.7 and 93.00) respectively compared with treatment infection Fusariume germanium fungi with soil Electric conductivity 2.64 dS/m^-1 (19.33, 13.00 and 52.33) respectively. Finally the results showed a significant increasing interaction by Glomus mossae treatment with soil Electric conductivity 2.64 dS/m^-1 in the (ratio of germination 75.7%, chlorophyll content in the plant 32.33 spad and height plant 40.00 cm) compared with treatment infection Fusariume germanium fungi with soil Electric conductivity 14.5 dS/m^-1 (24. 3, 13.67 and 12.00) respectively.