23 hybrids were selected as potential cultivar candidates due to their superior characteristics and were created at the Atatürk Horticultural Central Research Institute (AHCRI) or the Tekirdağ Viticulture Research Institute (TVRI). In this study, the ampelographic and molecular characteristics of 23 grapevine hybrids created in two different breeding studies were determined. Ampelographic data were collected during two vegetation periods in Yalova, Turkey. Total of 68 ampelographic characteristics were identified for 23 hybrids. Polymerase chain reaction (PCR) -based microsatellite technique was used to analyse 23 hybrids and 2 standard varieties. The genetic relationships were defined with 20 simple sequence repeat (SSR) markers, and genetic similarity indices, principal component analysis graphs and phylogenetic relationship dendrograms were produced depending on the hybrid and SSR marker size of the allele which ranged from 88 to 294 bp. Additionally, ampelographic and molecular scores were evaluated together. After evaluation of molecular and ampelographic data together, similarity ratio was increased and ampelographic characterisation was dominated by molecular characterization. It may be related using more ampelographic characters in the study. Variety candidates which were obtained from different Institutes were characterized and taken under protection with this study. The information in the obtained database can be used for cultivar identification, parentage analysis, and legal protection. Also, some ampelographic characterization results will be used in determining the priority of registration.

The main issue in working with fresh concrete is the workability during filling of formwork. One of the problems found in workability is occurence of segregation depending on w/c ratio. Segregation is strongly related to w/c ratio. The fresh concrete is usually considered as a non-Newtonian fluid since it is a mixture of aggregate, cement and water. The flow behaviour of the fresh concrete, a characteristic that is strongly related to w/c ratio, plays a crucial role in the quality of high performance concretes. The aggregates in fresh concrete cause segregation in the final product depending on the flow conditions. In this study, the mechanism of segregation in such a system was theoretically investigated. The mould filling of fresh concrete was numerically investigated and aggregates were considered as Lagrange particles. Segregation was identified from trajectories of such particles. Within this framework, fresh concretes with no admixtures (MC) and those with high range water reducer admixtures (HRWRA) (MCS) were investigated. Minimum agregate segregation in fresh concrete mixtures without HRWRA admixtures was observed to have been higher than in mixtures containing HRWRA admixture.