A field experiment was conducted on three F3 and F4 Peas populations used to study genetic variability, heritability on ten agronomic at Faculty of Agriculture, Sohag university during two winter seasons 2021/2022 and 2022/ 2023. Results showed highly significant different were found between all examined families for all studied traits in both seasons. In F3 populations, the Phenotypic Coefficient of Variation (PCV) values were higher than The Genotypic Coefficient of Variation (GCV) values for all studied traits. Moderate to high heritability ranged from 42.33% for seed set trait (population 1) to 76.12% for dry pods weight/plant trait (population 3). Moreover, PCV and GCV values in F4 were close to each other. Heritability in broad sense estimated in F4 were much higher than F3 and had a range from 34.22% for seed set trait (population 2) to 88.90% for height of plant trait (population 3) that refers to the selected families tend towards genetic stability and the influence of the environment on them is low. Moreover, the families in the third population of F4 generation were ranked the first population in traits height of plant, branches plant number, pods plant number, dry pod weight/plant and plant dry seed yield followed by the families in the first population of F4 generation and then the families in the second population of F4 generation. While, populations order in traits, seed set % and length of pod was second population, then third population then first population, respectively. The families in the third populations of F4 generation were ranked the second population in traits seed set % and pod length followed by the families in the third population and then the families in the first population. Therefore, continuing the selection process in the following generations will help in obtaining high-yielding and early-flowering peas lines from the superior families of the three studied populations

Peas, Phenotypic Coefficient of Variation (PCV), Genotypic Coefficient of Variation (GCV), Heritability, Genetic Advance (GA) and Genetic advance over mean (GAM)

Families in the third population of F4 generation were ranked the first population in traits height of plant, branches plant number, pods plant number, dry pod weight/plant and plant dry seed yield followed by families in the first population of F4 generation. Additionally, families in the third populations of F4 generation were ranked the second population in traits seed set % and pod length followed by the families in the third population

Hazem A.O. Ali, Khaled A.A. El Shaikh, Abo-Bakr A.A. El-Dakkak, Haitham M.A. Elsayed and Monera A.M. Abdein (2024). Genetic Variability Studies in Some Peas (Pisum sativum L.) Populations. International Journal on Emerging Technologies, 15(2): 39–49