Document Type : Research Paper
Authors
1
. Department of Soil Science, Faculty of Agriculture, College of Agriculture and Natural Resources, University of Tehran, Tehran, Iran.
2
Soil Science Departmen, Faculty of Agriculture, University of Tehran, Karaj, Iran
3
Soil Science Department, College of Agriculture and natural Resources, University of Tehran, Karaj, P.O.Box 4111, Iran
4
Department, of Agronomy College of Agriculture and Natural Resources, University of Tehran, Karaj, P.O.Box 4111, Iran
5
Kohin Soil and Water Conservation Research Center, Faculty of Agriculture, Faculties of Agriculture and Natural Resources, University of Tehran, Karaj, Iran.
Abstract
Wheat, a staple food crop wheat in nutrition and economy of the societies, is currently facing significant challenges due to climate change and water scarcity. This study investigated the effects of bentonite clay (6.25 and 12.5 g kg-1), carboxymethylcellulose (3 and 5 g kg-1), and mixture of two isolates of endophytic bacteria (Pseudomonas sp) and rhizosheath (Pantoea agglomerans) (10 and 20 mL kg-1), on soil properties, growth, yield, and yield components of the ‘Sirvan’ wheat cultivar under greenhouse conditions in a completely randomized design. the effective treatments on soil properties were identified during an incubation period. Five selected combined treatments, including B6.25C5M20; B12.5C5M10; B12.5C5M20; B12.5C3M20, and B12.5C3M10, along with positive and negative controls, were prepared in a total of 7 treatments with 3 replications and 21 pots. Five wheat seeds were sown in each pot, and morphological traits and yield were measured. Results showed that the treatment B12.5C5M20 had the greatest impact on wheat yield and yield components, significantly increasing spike length (5.33-7.33 cm), root length (2.13-9.67 cm), number of spikelets (10.66-15.3), number of grains per spike (8.33-20.67), thousand-grain weight (10.26-25.13 g), biological yield (2.39-6.28 g), and grain yield (0.47-2.43 g) compared to the control. plant height and harvest index, although increased compared to the control, did not show significant differences. Amending sandy soil with the applied treatments is a promising approach for wheat production in these lands.
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