Soilless agriculture applications in different barley genotypes

In this study, some physiological and morphological parameters of three different proprietary barley (Hordeum vulgare L.1753) cultivars Sancak, Aydan Hanım and Akar, which are grown in aquaponic and hydroponic systems, which are innovative and the use of soilless agriculture applications are increasing day by day both in the world and in our country, were measured. and their performance was evaluated across systems and varieties. In soilless farming practices, experimental groups were aquaponic and hydroponic systems, and potting soil was used as the control group. While goldfish (Carassius auratus L. 1753) are used as fish in aquaponic systems, the bacteria used for nitrification in the biological balancing tank of the system are Nitrosomonas sp., Nitrococcus sp., Paracoccus sp., Pseudomonas sp. and Nitrobacter sp. are types. In the hydroponic system, "Hoagland Solution" was used as the nutrient solution. During the whole study, the pH, temperature and EC values of the fish, the biological balancing tank and the nutrient tank of the hydroponic system were measured every other day. At the end of the study, morphological measurements of leaves, stems, roots, SPAD values, chlorophyll a, chlorophyll b, total chlorophyll and some plant indices were made. All the resulting results were analyzed and evaluated in the statistical program. When the results of all analyzes were taken into consideration, it was seen that the most suitable system for the three barley varieties used in the study was the hydroponic system. It has been seen that the most suitable variety for soilless farming systems is Akar variety. It is thought that this study will shed light on soilless agriculture studies to be carried out in the future.