Estimation of Genetic Parameters and Path Analysis of Sesame Genotypes under Three Plant Distributions

Abstract

A field experiment was carried out at research station of Department of Field Crops at the College of Agriculture at the University of Tikrit under gypsum soil conditions during the summer agricultural season (2022 AD). plants, which are (60 x 10, 40 x 15, and 30 x 20) cm2. genetic parameters were estimated in the three environments for studied traits under study. path was analyzed to determine most traits in single plant yield. The most important results were as follows: genetic variation was higher than the environmental in the three studied environments and for all traits, and values of the coefficient of genetic and phenotypic variation were average for most of the traits studied in the three environments and broad sense heritability was high in most of the studied traits and in three environments, and expected genetic advance was high as mean for traits of single plant yield in (the second and third environment) and it is possible to adopt the two traits of number of capsules per plant and seeds 1000weight with direct selective evidence to improve single plant yield because the direct effect of these two inpath analysis was positive and high.