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Effectiveness of Boron Formulations against Pseudomonas syringae pv. tomato in Tomato Seeds
2021
Ayşegül Gür | Kubilay Kurtulus Bastas | Şaban Kordali | Ferah Yılmaz
Pseudomonas syringae pv. tomato, the bacterial agent for tomato speck disease, can cause serious epidemics with high leaf moisture, mild temperatures, and cultural practices allowing bacterial dissemination among host plants. Boron is an essential micro-nutrient for plant growth and health in agricultural production. In this study, the effectiveness of 14 different Boron compounds at 5 different doses (1, 5, 10, 20 and 40 mM) against P. s. pv. tomato at a concentration of 108 CFU ml-1 in vitro was evaluated and the most successful 4 different Boron compounds (Ammonium tetrafluoroborate, Sodium tetrafluoroborate, Zinc borate and Disodium octaborate tetrahydrate) were coated with 5 mM doses infected cv. H2274 tomato seeds to determine bacterial populations and seed emergence rates in the seeds. Among the 14 different Boron compounds used in the experiments, Disodium octaborate tetrahydrate was the most successful active ingredient 92% ratio in inhibiting P. s. pv. tomato populations in tomato seeds, while 39% success was achieved with sodium tetrafluoroborate applications. According to the results of the research, it is thought that some Boron compounds can be an economical, effective and environmentally friendly chemical in reducing P. s. pv. tomato in tomato seeds within the scope of good agricultural practices.
Show more [+] Less [-]The Effects of Vermicompost Applications on the Yield and Quality of San Andreas (Fragaria x ananassa Duch.) Strawberry Variety
2021
Erdem Asaf Develi | Ayşegül Yavuz | Ümmügülsüm Erdoğan
In this study, in which the effects of different applications of vermicompost on the yield and quality of San Andreas strawberry variety were investigated 15, 30, 45, 60 g vermicompost was applied per plant. First flowering, first and last harvest dates, number of fruits per plant, yield per plant (g/plant), fruit weight (g), fruit flavor, macro and micro nutrient content, organic acid amounts were examined. The results showed that the differences between treatments in yield per plant were statistically significant. The highest total yield per plant was obtained from V45 and V30 applications with 972.8 g and 878.9 g respectively and the lowest yield was obtained from the control application with 384.2 g per plant. The largest fruits were obtained from the V60 (19.5 g) application. It was determined that nitrogen, phosphorus, potassium, magnesium, sulfur, manganese, iron, zinc and boron concentrations in the leaves of strawberry plants fertilized with vermicompost were higher than the control. The highest values in organic acid values were determined in oxalic, propionic, malonic, lactic, fumaric and succinic acids in V60 application (5.62, 11.16, 49.00, 104.98 µg/100 g respectively). It seems that the application of vermicompost fertilizer in strawberry cultivation has a positive effect on yield and quality characteristics.
Show more [+] Less [-]Influence of Different Pretreatments on Hot air and Microwave-Hot Air Combined Drying of White Sweet Cherry
2021
Meric Simsek | Özge Süfer
Microwave (MW)-hot air (HA) combined drying was applied to white sweet cherries besides solely HA drying at 50, 60 and 70°C in the presence of citric acid, sucrose and freezing pretreatment in this study. Single power level of MW (90 W) was chosen, and drying behavior of all samples was modelled by using eleven thin layer equations. Two-term, rational and sigmoid models were the most suitable models for describing drying phenomena. Effective moisture diffusivities (Deff) ranged from 1.724×10-10 to 5.173×10-10 m2/s in HA drying and from 4.260×10-10 to 1.805×10-9 m2/s in MW-HA drying. Activation energies (Ea) were between 2.785 and 30.541 kJ/mol and 6.929 and 42.101 kJ/mol for HA and MW-HA drying techniques, respectively. Total color change (ΔE) levels of the outer surface of dried cherries were generally higher than the ones of inner surface. Freezing pretreatment had a comparably lower enhancing effect on the total phenolic content (TPC) of HA dried white sweet cherries compared to fresh sample. The TPC of freezing pretreated and HA dried at 50°C and HA dried at 70°C control samples were 1.481 ± 0.398 mg gallic acid equivalent (GAE)/g dry matter (DM) and 6.181 ± 0.012 mg GAE/g DM as the minimum and maximum, respectively. These values were determined as 4.183 ± 1.728 and 8.240 ± 0.502 mg GAE/g DM that were belonged to MW-HA dried at 50°C control and freezing pretreated MW-HA dried at 70°C samples in combined procedure, respectively.
Show more [+] Less [-]Effects of Allegations Regarding the Use of Antibiotics and Hormones in Diets on Consumer Perceptions, Attitudes and Behaviors towards Broiler Meat Consumption
2021
Kerem Karasu | Ergin Ozturk
This research has been carried out to determine the effects of the current misinformation (hormone, antibiotic, feed additives and growth of broiler chickens in a short period) on consumers' view of the poultry meat sector. The survey was conducted in Istanbul province which better reflects the socio-cultural and socio-economic structure of Turkey, and with different demographic structure of 384 people face to face survey method was applied. Questions were asked to determine whether antibiotics and hormones were used in the diet of broiler chickens, and consumers' perceptions, attitudes and behaviors about the reliability of chicken meat. According to the results of the study, 73.4% of the consumers stated that they did not know about the contents of broiler diets. A big majority of the consumers (88.3%) stated that they think hormone is used and 84.6% think antibiotics is used in the feeding of broiler chickens. 78.4% of consumers surveyed stated that they think that broiler chickens are not fed with healthy feed. Also, 70.6% of consumers stated that rapid growth was due to use of antibiotics and hormones. Although the use of hormones and antibiotics as growth promoters in poultry feeds is prohibited, consumers think that they are used as additives and broiler meat is not safe food. According to these results, creating a positive effect on the purchasing decisions of the consumers is important for the sustainability and future of the sector.
Show more [+] Less [-]Evaluation of Improved Faba Bean Technology in The Wider-Scale: Lesson from Stakeholders’ Participation in Wag-Lasta, Ethiopia
2021
Ademe Mihiretu | Adane Wubet
This scale-wide participatory evaluation was designed to assess farmers’ technology preference and stakeholders’ linkage on top of estimating the advantage and efficiency of improved faba bean technology over the local practice. On-farm experiment and assessment were conducted using 100 farmers who allocate 0.25-0.5ha of land in Wag-lasta dryland. Planting and other agronomic standards were applied as per the technological recommendation. Required quantitative and qualitative data collected at farm and farmer level using quadrants and checklist, respectively. Cost-benefit analysis, descriptive and inferential statistics were employed to analyse the quantitative data. Qualitative data such as farmers’ technology preference and stakeholders’ linkage were assessed in simple ranking matrix and SWOT analysis. The improved faba bean technology provided mean grain yields of 1340 and 590 kg ha-1 in Lasta and Sekota districts, respectively. It has thus a 31.4% and 38.9% yield advantage and penalty over the local practice, in that order (p
Show more [+] Less [-]Effect of Different Pre-Sowing Treatments on Germination of Persian Walnut (Juglans Regia L.) in Rukum (East) District, Nepal
2021
Sagar Lamichhane | Rabin Thapa | Praseed Thapa | Kafil Ahamad
A field-based experiment was carried out in Rukum (East), Nepal, from February to June 2020, to assess the effect of different pre-sowing treatments on germination of Persian walnut. The experiment was carried out in a randomized complete block design with six treatments and four replications. The treatments included hot water treatment, chilling stratification only, cracking + Gibberellic acid (500ppm) followed by chilling stratification, cracking + Gibberellic acid (750ppm) followed by chilling stratification, Gibberellic acid (500ppm) + chilling stratification and Gibberellic acid (750ppm) + chilling stratification. The minimum days for germination (15.75 days) and highest germination (53.25%) were obtained when the combination of cracking with GA3 @ 750 ppm along with chilling stratification was done. The maximum shoot length (34.83 cm) was observed in the combination of cracking with GA3 @ 500 ppm followed by stratification but statistically similar shoot length (34.63 cm) was observed when cracking, application of GA3 @ 750 ppm followed by stratification was done. Cracking, treatment with GA3 @ 500 ppm followed by chilling stratification resulted in the highest shoot fresh weight (11.93 gm) and root fresh weight (10.77 gm) compared to the other treatments used. Thus, cracking along with treatment by GA3 @ 750 ppm followed by chilling stratification could be suggested to the walnut growers for better germination and a better morphological and physiological status of the rootstocks/seedlings.
Show more [+] Less [-]Antioxidant and Cytotoxic Potential of Local Endemic Plant Pastinaca zozimoides Fenzl
2021
Cihan Düşgün | Teoman Kankılıç | Cemil İşlek | Dilara Fatma Balı | Özgür Kankılıç
P. zozimoides is local endemic in Nigde province, Turkey. There has been no previous examination of the chemical composition and bioactivity of that plant extract. In this study, we studied total phenolic content, antioxidant properties and cytotoxic effect of methanolic extracts of plant sample. According to the Folin-Ciocalteau method, the total phenolics of the extracts were determined spectrophometric. The antioxidant activity was conducted DPPH (1,1’-diphenyl-2-picrylhydrazyl) radical scavenging method and free radical reducing power assay. The cytotoxic effect was studied using MTT assay cell viability on cancer cell lines as well as on Caco-2 cell lines. The total phenolic content of P. zozimoides extract was found 28.79±0.68 μg GAE /mg. The free radical scavenger activities of the DPPH was 31.69%±1.61, 85.15%±0.13, 86.96%±0.085 for 1, 5 and 10 mg/mL, respectively. The free radical reducing power assay was 0.375±0.52, 1.587±0.71, 1.798±0.84 for 1, 5 and 10 mg/mL compared to ascorbic acid standard. On Caco-2 cell lines, the extract of plant showed no cytotoxic potential. Because of its phenolic constituents and its antioxidant capacity it can be considered a healthy nutrient.
Show more [+] Less [-]Morphological and Habitat Characteristics of Asparagus (Asparagus officinalis L.) and Socio-Economic Structure of Producers
2021
Tayyi̇be Açıkgöz Altunel
Asparagus officinalis L. (Asparagus) is a species that belongs to Liliaceae family, 300 species grow naturally on earth and 12 species of it grow naturally in Turkey. Generally, above-soil and under-soil parts of some of its different species are used as a diuretic, tonic, heart sedative, demulsan, antidiarrheal, antidisenteric, galactagogue, aphrodisiac, antispasmodic in traditional treatment. In addition to that it is also consumed as a food. To date various pharmacological studies were conducted on many types of that species. However, no comprehensive study has been made on Asparagus species, including anatomical, morphological habitat and productive characteristics. In this study, morphological features of Asparagus as a medical aromatic plant in spreading areas, its raising environment features, economy, socio-economic status of producers, and contributions of its production on both household and local economy have been examined based on Kastamonu case. As a result, Kastamonu district has wide range with respect to climate, which helps Asparagus plant being cultivated in appropriate growing environments, having potential to provide opportunity to generate high earnings. But producers do not have adequate expertise to cultivate and grow it, lack of any relevant training/education, so efficiency is low and it does not have the value it deserves.
Show more [+] Less [-]The Change of Some Food Elements in Soil Depending On Shadowing and Fertilization
2021
İnci Sevinç Kravkaz Kuşçu | Sayed Moqadas Sharaf
Soil is one of the most important factors affecting the plant development on the basis. The method mostly applied for the purpose of accelerating the plant development and ensuring the increase in products is to increase the nutrients in the soil, namely fertilization. Fertilization ensures lots of food elements in the soil to get mixed in the soil and change the soil composition. Another factor affecting the plant growth speed and productivity is shadowing. Shadow conditions change the light receiving amounts of the plant and directly affect the plant photosynthesis speed. In addition; shadowing not only affects the dissolution and in-soil mixture speed of the fertilizers applied to the soil, but it also directly affects the humidity content of the soil. In this study, it has been aimed to determine the food element changes in the soil on the lavender individuals grown under different shadow conditions and fertilized with different fertilizers. The lavender used in the study has been selected due to the fact that it adapts to dry areas, it is abstinent in terms of soil and it is an important and income-generating medical aromatic plant. As a result of the study, it has been determined that shadowing statistically affects salt, carbon, phosphor, nitrogen and potassium and fertilization statistically affects phosphor, nitrogen, potassium, carbon and salt at least at 95% confidence level.
Show more [+] Less [-]Determination of the L-DOPA (L-3, 4-Dihydroxyphenylalanine) Content in Faba Bean (Vicia faba L.) Flowers and Faba Bean Flower Tea
2021
Hatice Bozoğlu | Merve Bezmen
This study aimed to determine the L-DOPA content in the flowers of some different faba bean genotypes and determine the L-DOPA levels in tea prepared from flowers. The experiment was carried out under the ecological conditions in Samsun by the Black Sea with 15 genotypes using a randomized complete block design in three replications. The flowers were harvested three times and the number of flowers and flower yields were determined. The L-DOPA content of the flower and flower tea were determined using HPLC. Different solvents were used to extract the L-DOPA from the faba bean flowers. As a result of the HPLC analyses, the highest L-DOPA yield was determined to be in the tea samples brewed with hot water. It was found statistical differences between genotypes in the second and third harvests for the number of flowers in the plant and the total number of flowers. Dry flower yields ranged from 11.33 to 37.78 kg da−1 while L-DOPA levels were 6.2 to 9.17 g 100g−1 in dry flowers and 6.69 to 9.23 g 100g−1 in infused tea. The study concluded that flower tea of faba bean can be investigate for medicinal purposes and that L-DOPA in the plant can be extracted by brewing without requiring any solvent. This shows that L-DOPA is in a salt form within the plant.
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