GENETIC VARIATION IN SOME YIELD TRAITS IN BARLEY (Hordeum vulgare L.)
BAHAA THABET
Department of Genetics, Faculty of Agriculture, Assiut University, 71526 Assiut, Egypt.
ABDUALLAH RAFIK *
Department of Genetics, Faculty of Agriculture, Assiut University, 71526 Assiut, Egypt.
OSAMA MOHAMED
Department of Genetics, Faculty of Agriculture, Assiut University, 71526 Assiut, Egypt.
SHAHINAZALNASHAR .
Department of Genetics, Faculty of Agriculture, Assiut University, 71526 Assiut, Egypt.
NAGLAANAGEEB .
Department of Genetics, Faculty of Agriculture, Assiut University, 71526 Assiut, Egypt.
MARY RAAFAT
Department of Genetics, Faculty of Agriculture, Assiut University, 71526 Assiut, Egypt.
HEBA EL-GHIT
Department of Genetics, Faculty of Agriculture, Assiut University, 71526 Assiut, Egypt.
SABREEN SALEM
Department of Genetics, Faculty of Agriculture, Assiut University, 71526 Assiut, Egypt.
ASMAA NASR
Department of Genetics, Faculty of Agriculture, Assiut University, 71526 Assiut, Egypt.
ZEINAB OSMAN
Department of Genetics, Faculty of Agriculture, Assiut University, 71526 Assiut, Egypt.
LATIFA SAYED
Department of Genetics, Faculty of Agriculture, Assiut University, 71526 Assiut, Egypt.
MAHA MAHMOUD
Department of Genetics, Faculty of Agriculture, Assiut University, 71526 Assiut, Egypt.
AMIRA GAMEEL
Department of Genetics, Faculty of Agriculture, Assiut University, 71526 Assiut, Egypt.
HADEER ABO-TAHA
Department of Genetics, Faculty of Agriculture, Assiut University, 71526 Assiut, Egypt.
MONA GAMEA
Department of Genetics, Faculty of Agriculture, Assiut University, 71526 Assiut, Egypt.
RANIA HAMMAM
Department of Genetics, Faculty of Agriculture, Assiut University, 71526 Assiut, Egypt.
*Author to whom correspondence should be addressed.
Abstract
A set of 60 highly homozygous lines of barley were evaluated to assess the genetic variation in some yield traits. The experimental layout was randomized complete design with two replications. Four traits were recorded; plant height (PH), spike length (SL), days to flowering (DTF), and chlorophyll content (CC). The results indicated high genetic variation between genotypes for all traits. The genotypic correlation was higher than the phenotypic correlation. The highest genotypic (0.35) and phenotypic (0.27) correlation was found between PH and SL. The highest heritability ranged from 58.34 for DTF to 79.02 for CC. These results indicate the possibility to improve yield traits in barley through the selection process in breeding programs.
Keywords: Barley, genetic variation, yield attributes, genetic analysis