The present work was carried out to enhance biomass production of Spirulina (Arthrospira platensis Gomont) in a modified medium and to investigate “in vitro” its ability to produce antimicrobial substances against pathogenic bacteria and phytopathogenic fungi. The antibacterial activity was evaluated by the solid medium diffusion method on two pathogenic bacteria (Bacillus cereus & Klebsiella sp.), And the antifungal activity was evaluated on three phytopathogenic fungi (Alternaria solani, Cladosporium sp., Fusarium culmorum). The antibacterial test showed that the aqueous extract produced by S. platensis was more active against Gram-positive than on Gram-negative bacteria, the highest antibacterial activity was recorded against Bacillus cereus. Moreover, the Antifungal test showed that the aqueous extract was active against all three tested fungi and the highest antifungal activity was recorded against F. culmorum with over 90% inhibition of mycelial growth. The results of this research proved that cyanobacteria could be a good source for the production of antimicrobial agents which could be effective when compared with contemporary antimicrobial compounds and it can be used in the Biocontrol of several plant fungal diseases.

The objective of this study was to investigate the effect of 10 mM silicon (Si) application on salt stress (50, 100, and 200 mM NaCl) tolerance in Hungarian vetch seedlings (Ege Beyazi-79) based on growth parameters (shoot length and fresh weight, organic dry matter, and moisture), bioactive compounds as chlorophyll, carotenoid, proline, protein, nitrate, and nutrient status. Silicon was applied to the seedlings from the leaves and NaCl from the salt soil, both of which were dissolved in Hoagland solution. The results revealed that the highest shoot length Si+100 mM NaCl was recorded and the highest fresh and dry weight was recorded with length Si+50 mM NaCl. The highest dry matter was obtained from Si and 200 mM NaCl. The highest chlorophyll, carotenoid, proline, protein, and nitrate were obtained from 100 mM NaCl+Si, while the lowest chlorophyll, carotenoid, and nitrate were obtained from 200 mm NaCl and the lowest proline and protein from 100 mM NaCl, respectively. The amount of K, Mg, and S were low in NaCl doses but high in Si and Si + NaCl doses, and P was higher in all groups compared to the control. The content of Na, Co, and Se were high in all groups except Cl 50 NaCl, while Mn, Zn, and Ni were higher in Si and Si + NaCl doses. Silicon content of samples was high at higher NaCl + Si doses. The results provided by this investigating indicated that silicate concentrations positively affected the parameters examined in Hungarian seedlings, and increased the tolerance of seedlings to salt stress.

Thyme is one of the spices that is widely consumed in the regions where it grows and is used in many dishes, especially soups, and gives a regional identity to the dish where it is used. In this study, the amount of phytochemicals and antioxidant capacity of the plant Satureja hortensis L. (süpürge kekiği, çibriska) which grows spontaneously and is used as a spice in meals in the Karakoçlar settlement area of Olur district of Erzurum province was investigated. The total amounts of phenolic and flavonoid substances were determined to be 40.85±0.85 mg GAE/g and 26.52±0.46 mg QE/g, respectively. In addition, the DPPH radical scavenging activity of the plant extract was calculated as 45.24 ±3.47 μg TE/mL and the IC50 value was calculated as 177.11±0.99 μg/mL. It was determined that the Cu2+ reducing antioxidant capacity of the S. hortensis plant extract was 2162.09±113.61 μg TE/mL and the Fe3+ reducing antioxidant capacity was 24.36±4.59 μg TE/mL. As a result, it was concluded that the S. hortensis plant, which is known with different names in different regions, has antioxidant potential and can be used as a natural antioxidant source in addition to its common use.

EXPO, which is used as the abbreviation of the word 'exposition', which means 'World Exhibition' or 'World's Fair' in English; It is a global event that has been organized around the world since the 19th century and aims to promote the city and country in which it is held in the national and international arena, raise awareness, educate the public, share innovations, produce, support development and encourage cooperation. Our country participated in this event for the first time with the 1851 London Expo Organization during the Ottoman Empire Period. It was hosted for the first time with the Expo Organization held in Antalya in 2016, and it is the host country for the second time with the Expo organization held in Hatay on April 1, 2022. Expo 2021 Hatay, whose full name is 'International Horticulture Fair Hatay, Turkey 2021'; It was accredited as a Class B international Expo by the International Association of Horticultural Producers (AIPH) on January 23, 2017 and registered according to the decision of the AIPH Board of Directors. Within the scope of this study, the economic, cultural and environmental effects of the EXPO'21 Hatay organization, which is a very important tool for the national branding and development of Hatay, were evaluated, and suggestions were made about the correct reuse of the fairgrounds and their sustainability after the organization was over.

Cadmium (Cd) is one of the toxic heavy metals not essential for the growth and development of plants and other organisms. Brassica rapa accumulates several heavy metals in its leaves and is reportedly suitable for phytoremediation. In this study, Cd uptake and accumulation in the leaves of B. rapa exposed to different cadmium levels (0, 5, 10, 20, 50, 100 μM CdSO4) were analyzed, as well as the effect of Cd stress on HMA2 and HMA4 genes expression were investigated. The qRT-PCR results showed that HMA2 and HMA4 play a vital role in cadmium uptake and translocation in B. rapa at low Cd levels (5-20 μM). However, exposure to high Cd levels (50 and 100 μM) significantly reduced the growth and biomass of B. rapa. Furthermore, high levels of Cd inhibit the expression of HMA2 and HMA4 genes in B. rapa. Our data show a multigenetic (co-acting of many transporter gene clusters) response in the signaling pathway associated with Cd accumulation and tolerance mechanism in B. rapa.

This study was carried out in order to determine the antifungal effects of elemental sulfur applications on Rhizoctonia solani, Fusarium solani in potatoes in 2011-2012. Elemental sulfur was applied in 0, 2, 4, 6, 8 and 10 kg S/da doses with 3 different methods (seed tuber, soil (seed bed) and potato leaf). For both infections, seed tuber and soil applications showed higher antifungal effects than foliar applications. The effects of the application methods were different depending on the doses, and 6 kg/da and above S in seed tuber applications, 10 kg/da S in soil applications, and 6-8 kg/da S doses in foliar applications showed a higher antifungal effect. Infected tuber ratio and the infection severity with R. solani decreased to 18.8% and 6.0%, respectively with 10 kg/da S soil applications. The mean infection severity and infected tuber rate with F. solani decreased to 6.8% and 6.0%, respectively, with 8 kg/da S seed tuber applications. Sulfur applications showed high antifungal effect on both fungal pathogens, and this effect was higher on R. solani. With sulfur applications, a significant resistance can be created against R. solani and F. Solani infections, which have high economic damage in the potato plant. It was concluded that the application of sulfur to the soil or seed tuber was much more effective than the foliar application and 6-8 kg/da S applications may be sufficient to control of fungal diseases.

This study was carried out to determine the root development of black mulberry hardwood cuttings kept in light and dark conditions. The experiment was carried out in the polyethylene greenhouse of Tokat Gaziosmanpaşa University Research and Application Center, in 2021. As material, hardwood cuttings prepared from one-year-old branches of black mulberry trees were used. The cuttings were divided into 3 different groups and planted in rooting beds containing perlite with bottom heating (22±2 °C). First group of cuttings were planted into beds as soon as taken from tree (control), the second group of cuttings were plantend after the cuttings were kept under daylight conditions for 5 days (in the open) and third group cuttings were planted after the cuttings were kept in the dark conditions (in the dark) for 5 days in both conditions soaked in water. All cuttings were dipped in 6000 ppm IBA (indole-3-butyric acid) hormone for 5 seconds just before planting. The experiment is with 3 replications and there are 15 cuttings in each replication. After keeping 90 days in the rooting environment, the cuttings were removed; root number (root/stem), root length (cm), root diameter (mm), decay rate (%), rooting rate (%) and callus formation rate (%) parameters were investigated. As a result of the study, there was no statistical difference between the different conditions in the investigated parameters. The data obtained varied between the following values; rooting rate between 68.89% - 93.33%, decay rate between 24.4% - 55.5%, callus formation rate between 68.8% - 88.8%, number of roots 8.8 - 13.5 root/stem, root length 6.5 - 7.4 cm and root diameter between 1.02 - 1.16 mm.

Covid-19 salgını gıda ve hayvancılık sektörünün önemini ortaya çıkarmıştır. Hayvancılık sektöründe üretimin devam etmesi olası gıda krizini önlemiştir. Covid 19 salgını ülkemizde hayvancılık üzerinde bazı etkiler yaratmıştır ve küresel piyasalarla birlikte maliyetlerde artış olmuştur. Ne yazık ki maliyetlerdeki artış halen devam etmekte ve üreticiyi zor duruma sokmaktadır. Bu çalışmada, pandemi sürecinin Türkiye’de hayvancılığı üzerine olan etkileri değerlendirilmiştir. Bu konu ile ilgili ulaşılabilen kaynaklar incelenerek mevcut durum ortaya konulmuştur. Ayrıca, COVID-19 etkeninin özelliği ile hayvan türleri arasındaki farklılıklara ait bilgiler verilmiş ve çiftlik hayvanları sayıları incelenerek büyükbaş, küçükbaş, kanatlı ve arı ürünleri üretimleri incelenmiştir. Bu çalışma, COVID- 19’un hayvancılık sektöründe ve çiftlik hayvanlarında görülen etkileri ile ilgili veriler derlenerek literatüre katkı sağlamak üzere hazırlanmıştır.

The bean plant is a legume plant that binds free nitrogen of the air by the nodosity formed in the roots. For this reason, it was aimed to investigate the effect the pod of bean characteristics of bean by applying different doses of phosphorus and nitrogen on Göksun beans cultivar. In the study, 0, 3, 6, 9 kg da-1 phosphorus and 0, 4, 8, 12 kg da-1 nitrogen doses were applied to Göksun bean variety. The pod length (cm), pod width (mm), pod diameter (mm), number of pods per plant (edet), weight of a single pod (g), number of seeds per pod (pieces), weight of single seeds (g) of Göksun bean cultivar were investigated. In the research, it was noted that the effect of phosphorus doses only on the pod diameter, the effects of nitrogen doses on the pod length, pod diameter, pod width, single seed weight and seed number of pod were significant. The differences in number of pods in the plant, seed number of pods, pod length, pod weight, single seed weight in terms of phosphorus and nitrogen interaction were founded statistically significant. According to the results of the research, it was determined that 4 kg da-1 and above nitrogen dose applications made a positive contribution in terms of pod properties

Macrofungi have long been used as food and medicinal purposes by humankind. This study aimed to identify a macrofungus sample collected from Niğde, Türkiye in 2019 via molecular techniques and determine the content of total phenolic compounds, antioxidant and antimicrobial activities. According to data obtained from the sequence analysis of ITS fragment of rDNA the macrofungus sample was identified as Bjerkandera adusta (Willd.) P. Karst (1880). The sample was extracted with ethanol and methanol. Total phenolic compound content, antioxidant activity via DPPH scavenging method and antimicrobial activity via disc diffusion method of B. adusta was determined by using these extracts. The amount of total phenolic compounds was found as 772.28 µg GAE/mL for a methanolic extract of B. adusta. The ethanol extract of B. adusta showed 79.66% scavenging activity of 0.1 mM DPPH solution. The highest inhibition zone diameter was measured as 28±1 mm against P. aeruginosa by ethanolic extract, while the lowest antimicrobial activity was found in 15 µL methanol extract against S. typhimurium with an inhibition zone diameter of 8.7±1.2 mm.