Efficiency of Selection in Inducing Genetic-Molecular Variations in Sunflower
Muayad M. Ibrahim, Zeyad A. Abdulhamed
Abstract
Abstract Selection by the honeycomb is used to obtain high-yielding genotypes from the sunflower, The selection is carried out using several genotypes, as they are grown for more than one season, with a distance of 1.3 m between furrows and 1.5 m between the plants. The selection depends on the area of the sunflower disk. The selected seeds are randomly planted and pollinated in the third season. The seeds resulting from random pollination are sown in a comparative experiment with the original populations and evaluate them at different densities. Selection criteria are based high yield. In addition to studying the molecular indicators of the selected and original genotypes to know the genetic and molecular distance between them in order to choose the appropriate breeding method. Honeycomb selection is expected to improve plants performance for a number of genetic, phenotypic and physiological traits due to the additive gene. Therefore, we suggest adopting the honeycomb selection program to select active strains, whether by using improved varieties or strains to obtain new hybrids that are better than what is produced today through known breeding methods.