Salwa Sadeia (1), Faisal Bakkour (1), and Nabila Kridi (2)
(1). Failed crops Department, Faculty of Agriculture, AL-bath University, Homs, Syria.
(2). General Commission for Scientific and Agricultural Research, Damascus, Syria.
(*Corresponding author: Salwa Sadeia, E.mail : salwa.sadeia@gmail.com).
Received: 21/11/2023 Accepted:13/04/2024
Abstract:
The research aimed to study the effect of applying two types of vermicompost (sheep, sludge) on the leaf area and relative water content of two genotypes of soybeans (Glycine max)(Sb44, (Sb239). The research was carried out at the Homs Research Center of the Scientific Agricultural Research Commission, for two agricultural seasons. (2021, 2022), vermicompost was added at rates of (3-6-9) tons/ha. Some physiological indicators were studied (leaf area cm², relative water content%). These genotypes were planted using a split-plot design in three replicates. 14 treatments were studied, distributed as follows: a mineral control for each genotype, three sheep vermicompost treatments according to three concentrations for each genotype, as well as three sludge vermicompost treatments according to three concentrations for each genotype. The results showed that there were significant differences between the two genotypes studied for the two traits studied, as the genotype (239Sb) was superior in terms of leaf area to the genotype (44Sb), In comparison between the treatments studied for the two genotype, the vermicompost from sludge treatment with a concentration of 9 tons/h outperformed the rest of the treatments. A study of the relative water content in the leaves showed that the genotype (239Sb) was superior to the genotype (44Sb), which indicates the ability of the genotype (239Sb) to withstand drought stress to a greater extent than the genotype (44Sb). The same was true for the sheep vermicompost treatment at a concentration of 3 tons/ha The greatest effect on increasing the relative water content in the leaves was for the genotype (44Sb), while the vermicompost treatment resulting from sludge at a concentration of 3 tons/ha was superior to the genotype (239Sb).
Keywords: vermicompost, sludge, soybeans, physiological characteristics, relative water content.
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