Muhammad Nael Khattab(1) and Maya Ghorra(2(*
.(1). Department of Crops, Faculty of Agriculture, Tishreen University, Lattakia, Syria.
(*Corresponding author: Maya Ghorra:E-Mail: mayanabilgherra@gmail.com).
Received:20/09/2022 Accepted:6/11/2022
Abstract:
The research was carried out in the Damsarkho area of Lattakia governorate during the agricultural season 2022-2023, according to the Randomized Complete Block Design (RCBD) and with three replications, for five genotypes of sweet corn (Dina, Golden Sweet, Mardikh, Al-Baladi, Novo) obtained from some companies Agriculture in Lattakia, by studying some characteristics (number of days to maturity, plant height (cm), crab height (cm), number of leaves, area of plant leaves (cm2), average length of crab / cm, average diameter of crab / cm, average weight of crab (g), average grain weight (g), average sugar content (%)). In order to study the phenological, morphological, physiological, productivity and quality characteristics of some genotypes of sugar corn, using some statistical and genetic indicators of the studied traits to select the best ones and use them in subsequent breeding programs. The Mardikh cultivar was distinguished as the first seed (87.5) days, and the grain weight was in cornflowers (50 g), and the Novo cultivar had a plant height (170.45 cm). And the Golden Sweet model has two sizes of cob height (44.21 cm), diameter of cob (4.79 cm). The Dina model was also distinguished by the characteristics of the number of leaves (14.45 cm), the area of the leaves of one plant (7827.83 cm 2), the length of the eagle (18.21 cm), and the weight of the eagle (92.65 cm). The degree of heritability was high in all the studied traits, ranging from (0.65-0.96), and with genetic progression, it ranged between weak and acceptable, according to the traits. We recommend the use of the two genotypes of sugar corn, Dina and Mardikh, for cultivation in the coastal area and for use as a raw material for subsequent breeding work, due to their superiority in many characteristics, including early maturity, productivity and quality. The cluster analysis also indicated the presence of genetic diversity among the studied phenotypes, which is necessary for any subsequent educational process, especially the use of genes belonging to different groups for crossbreeding in order to obtain the maximum strength of the hybrid.
Key words: sugar corn, degree of heritability, genetic progression, genetic and phenotypic variance.
Full paper in Arabic: pdf