Increasing salt tolerance in two pecan rootstocks ("desirable" and "graking") by mycorrhizal inoculation [electronic resource].

Includes references.

The effect of inoculation with mycorrhizal fungi (Glomus mosseae and Glomus australe) on salt stress response of two pecan rootstocks ("Desirable" and ''Graking'') grown under different salinity levels (0.0, 1000 and 2000 mg/L⁻¹) was investigated. Generally, it could be concluded that all the studied growth parameters were significantly decreased with saline irrigation water compared to those which didn't receive salt treatments and these decrements were paralleled with increasing salt concentration.Yet, average number of burned leaves fplant showed the ahove-mentioned tendency.whereas root length did not take definite trend. Inoculation with mycorrhizal fungi (MHZ) minimized the harmful effect of salinity. Stocks were treated with high salinity concentration (2000 mg/L⁻¹ ) without MHZ inoculation was considered the most drastic treatment, since it gained the lowest growth values. Concerning the response of (wo pecan cultivars under study to salinity expressed as number of leaves, root, and top dry weights, root len,gth and thickness of main root, "Desirable" rootstock obtained higher values thati"Graking".

Summary in Arabic.

1