Potential Use of Beneficial Salt Tolerant Bacteria for Improving Wheat Productivity Grown in Salinized Soil

摘要

Wheat is one of the major crops cultivated in the black clay soil, the salinized soil reduces the productivity due to the improper nutrition of plants as well as osmotic and drought stress. The current study used osmoadaptive salt tolerant Azotobacter chroococcum and Azotobacter vinelandii , isolated from salt-affected soils to tolerate salt and facilitate plant growth in saline soils. Inoculated wheat crops with bacteria gave better results than uninoculated one in growth criteria as stem high, weight, grains weight, straw weight, and 100 grains weight. The improvement ability of bacteria was correlated to the production of plant growth regulators as auxins (IAA), which indicated that using these salt tolerant bacteria with wheat cultivation, improve crop productivity in saline soil.