Genetic diversity of characteristics in barley cultivars

Abstract

Knowledge of the genetic diversity is important to design appropriate selection criteria in the breeding programs. In this study, the genetic diversity of 42 Iranian and European barley cultivars was investigated with morpho-agronomic traits including phenological, physiological, morphological traits, grain yield and associated traits. Analysis of variance showed high variability among cultivars. The European cultivars Panaka, Aiace and Pariglia had the highest grain yield. The results of group comparisons indicated that the European cultivars produced higher grain yield (500.57 g/m 2) than the Iranian cultivars (445.50 g/m 2), but larger genetic diversity based on morpho-agronomic traits was observed among Iranian cultivars than European cultivars. Correlation analysis revealed the high significant correlations between grain yield with biological yield (0.92), straw yield (0.77), and number of spike per square meter (0.67). Based on the factor analysis, the six factors that justified 81.63 percent of the variations were identified. The first factor having the largest eigenvalue was identified as effective factor on the vegetative and reproductive growth. In path analysis, biological yield had the greatest effect on grain yield (0.906). Cluster analysis classified the cultivars in six groups and showed that genetic variation based on the all studied traits among the barley cultivars was not related to geographical location.

Comprehensive Selection Criteria for High-Yielding Bread Wheat (Triticum aestivum L.) Hybrids under Salinity Stress

“…Also, the five promising wheat hybrids mentioned above were recorded highly significant and positive results of heterosis over better parent, and they were very distinguished concerning the incident superiority for SCA effects which indicates that these genotypes are the actual nucleus for producing salinity tolerance wheat lines in addition, high yielding in this regard. Results of Bi-plot analysis were in good harmony with Dehghani et al (2012), Saroei et al (2017), Mariey et al (2021), who reported that the hierarchical cluster and Bi-plot analysis based on phenotypic traits were aimed to detect homogeneous groups with large heterogeneity among them. Also, they are considered a valuable tool for subdividing the number of genotypes in groups including similarity and dissimilarity genotypes, to help the breeder plan an effective breeding program.…”

Nutritional Compositions and Sensitivity Analysis of Poultry Feed Mills in Bangladesh through Experimental Economics Approach

“…In view of these circumstances, the financial analyses showed that poultry feed mills were highly profitable from the view point of individual investments. This research is also supported by some research like feed costs typically represent the highest cost item in smallholder production systems, implying that both quantity and quality of feed have a significant effect in determining profitability [25,26].…”

Genetic Diversity among some Egyptian Barley (Hordeum vulgare L.) Cultivars Based on Protein and RAPD Markers

“…RAPD profile is easy, unlimited marker numbers, fast and efficient technique. Thus, it is widely used for determining genetic variation among barley varieties (Tanyolac et al, 2003;Raoudha et al, 2010 andSaroei et al,2017).The use of biochemical and modern molecular markers to identify genotypic variation between barley genotypes is an important step toward effective and specific strategies for breeding program. Thus, the target from this study was to determine the genetic diversity among some Egyptian barley cultivars based on the genetic distances obtained from SDS-PAGE and RAPD-PCR markers.…”