.dr A Selective Study of Some Phenological, Morphological, and Productive Traits of Several Soybean Genotypes (Glycine max L.(

Abstract

The research was carried out in Latakia Governorate (Damsarkho), and in the Scientific Research Laboratory of the Faculty of Agricultural Engineering –University of Latakia, for the 2024 agricultural season, with the aim of evaluating 5 genetic models of soybeans, namely (Sb335, Sb337, Sb339, Sb342, Sb344) through phenological, morphological, production indicators and their components, to determine the best model that can be grown and to arrive at electoral evidence that can be considered a criterion for high productivity under the conditions of the research area. The experiment was carried out according to the design of complete random sectors (RCBD) and with three iterations.

The results showed that there were significant genetic and phenotypic differences in the studied traits, especially in yield and the different yield-contributing traits in soybean models. The differences between the coefficient of apparent variation (GCV) and the coefficient of genetic variation (PCV) were very low for all traits studied, indicating that environmental influences in the development of these traits were minimal.

The genetic type Sb342 excelled in the characteristics of plant height (cm), weight of one seed (g), weight of seeds per pod (g), weight of pods on the plant (g), number of seeds in the plant, and total productivity kg/h. While the genetic type Sb339 excelled in the characteristics of early flowering and maturity.

 The results also showed the possibility of selecting for seed productivity traits by selecting for traits such as pod weight and number of seeds in the plant, due to the positive, high-moral correlation between them and their high degrees of inheritance and moderate genetic progression.