 Subjects -> SCIENCES: COMPREHENSIVE WORKS (Total: 374 journals)
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- Influences of Salicylic Acid and Calcium Chloride Treatments on Fruit
Quality of Peach cv. J.H. Hale at Harvest Time
Authors: Derya ERBAŞ
Abstract: The purpose of this study was to investigate the effects of pre-harvest salicylic acid (SA) and calcium chloride (CaCl2) treatments on the fruit quality and biochemical properties of peach cv. J.H. Hale at the harvest. CaCl2 and SA were sprayed on the trees 3 and 2 weeks before the estimated harvest date at different doses and combinations. Some physical and biochemical analyses were performed on the fruit which were picked at the commercial harvest time. SA treatments had positive effects on fruit size and these effects were more significant when it was used in combination with CaCl2. It was determined that the combined treatments (SA+CaCl2) increased the fruit flesh firmness. All treatment groups had higher ascorbic acid content, total phenolic content and total antioxidant activity values than the control group. The combination treatment of SA and CaCl2 was found to be effective in retarding the accumulation of color pigments. As a result, it was concluded that pre-harvest treatment of SA and CaCl2 was effective in improving the quality of ‘J.H. Hale’ peach cultivar and this effect could be increased even more with the combined treatment.
PubDate: Fri, 23 Jun 2023 00:00:00 +030
- Internet of Things-based Smart Door Application
Authors: İbrahim ALAÇAKAL; Habib DOĞAN
Abstract: Parallel to the development of technology, the concept of the Internet of Things (IoT) has entered many aspects of our daily lives and has found application areas. Depending on the high demand for smart home concepts in the market, different IoT equipment are introduced into the field of application. In this study, it was aimed to remotely open and close a door automatically within the framework of the smart home concept, and this process was carried out on the internet using the NodeMCU kit. The ESP8266 wi-fi module in the NodeMCU kit has enabled this process to be carried out easily over an internet connection. Since it is possible to monitor when the door is opened and closed as a result of the application, it is aimed to be used for extra security purposes as well as for remote access. The fact that the designed circuit is simple and very economical in terms of cost will enable it to be used easily and comfortably in most applications.
PubDate: Fri, 23 Jun 2023 00:00:00 +030
- Determination of Forage Yield and Quality of Rygrass (Lolium multiflorum
L.) Varieties in Bursa Conditions
Authors: Barış ÇETİN; Mevlüt TÜRK
Abstract: The research was carried out in Bursa ecological conditions in order to determine forage yield and quality of some ryegrass varieties in 2021-2022 growing season. In the research, 10 ryegrass varieties (Medoacus, İlk Adım, Rambo, Trinova, Baqueno, Rihanna, Idefix, Caramba, Hellen, Obelix) were used as plant material. The experiment was carried out according to the randomized block design with three replications. In the study, plant height, hay yield, crude protein ratio, crude protein yield, ADF and NDF ratios were determined. Except plant height and NDF ratio, in terms of all parameters examined in the study, statistically significant differences were determined between varieties. According to the results of research, the highest hay yield and crude protein yield were obtained from Baqueno and Obelix, the highest crude protein ratio was obtained from Hellen and Caramba, and the lowest ADF ratio was obtained from Obelix variety. When yield and quality are evaluated together, it has been determined that Baqueno and Obelix varieties are superior to other varieties in Bursa province climate and soil conditions.
PubDate: Fri, 23 Jun 2023 00:00:00 +030
- Insecticide Resistance and Mechanisms in Cydia pomonella (L): Global
Situation
Authors: Murat YEŞİLIRMAK; Recep AY
Abstract: Cydia pomonella (Lepidoptera: Tortricidae) is an important pest of pome fruits (apples and pears) and walnuts worldwide. Integrated control methods compatible with the environment; such as the mating disruption technique, mass trapping and sterile insect technique, parasitoid release, Bacillus thrungiensis kurstaki, C. pomonella granule virus and applying new generation bioinsecticides of bacterial origin have been used to suppress C. pomonella populations. However, these management methods cannot suppress the codling moth populations at desired level when they are used alone. Therefore, in almost all pome fruit producing countries, C. pomonella is controlled by insecticides. As a result of the intensive use of insecticides worldwide, it has been determined that C. pomonella has developed resistance to wide range of pesticides including organophosphate, carbamate, pyrethroid, benzoylurea, neonicotinoid, granulavirus, DDT, fenoxycarb, arsenate, diacylhydrazine and cyclodiene organochlorines. In this review, insecticide resistance, biochemical and molecular mechanisms of different populations of C. pomonella, which have been determined from past to present, are summarized.
PubDate: Fri, 23 Jun 2023 00:00:00 +030
- Usage Opportunities of Lupine (Lupinus angustifolius L.)
Authors: Derya GÜLOĞLU
Abstract: Lupine is an annual herbaceous plant belonging to the Leguminosae family. Some species have begun to be cultivated 3000 years ago. Most of the wild species grow around the Mediterranean and in North America. Some species are planted in fields for soil improvement as green manure or in gardens as ornamental plants. Its seeds are generally used as provender. Turkey abounds in terms of both cultivated species and their wild forms and lupine species cultivated for limited purposes. The plant which is also known as lupine, is becoming more and more important due to its soil-improving, plant-preserving (bioinsecticide) and growth-promoting (biostimulator) properties, especially in organic farming practices carried out for natural and healthy nutrition, as well as its use in human and animal nutrition. In this study, the usage opportunities of the lupine plant were examined under the titles.
PubDate: Fri, 23 Jun 2023 00:00:00 +030
- Analysis of Transcritical Heat Pump System with Internal Heat Exchanger at
Different Operating Conditions
Authors: Arif Emre ÖZGÜR; Özdemir DENİZ, Murat OĞUZ
Abstract: Heat pumps are a sustainable heating solution. Refrigerants are used in these systems. The synthetic ones of these fluids cause an increase in the global warming problem due to greenhouse effects. For this reason, the search for alternative and sustainable fluids has increased. In this study, the performance of a single-stage, internal heat exchanger, Electronic Expansion Valve (EGV) controlled transcritical heat pump system using R744 (CO2), an alternative and sustainable refrigerant, was experimentally investigated. With different EGV opening rates, the system is provided to operate at different operating pressures. The heating effect coefficient (COPh) of the system and the refrigerant flow rate changes for different gas cooler and evaporator pressures were investigated experimentally. The system was installed as an air-to-water heat pump and the water temperatures and flow rates obtained from the heat pump were recorded. EGV opening percentage and hot water flow rate values were changed in system steady regime conditions. All measurement parameters and the power drawn by the system were recorded. COPh value was calculated for 7 different operating conditions. It has been observed that the system performance reaches its maximum at certain gas refrigerant pressures. It has been observed that the system performance reaches its maximum around the optimum gas refrigerant pressure.
PubDate: Fri, 23 Jun 2023 00:00:00 +030
- The Effect of Some Seed Pretreatments on Yield and Quality Traits in Black
Cumin (Nigella sativa L.)
Authors: Nilüfer DURMAZ; Nimet KARA
Abstract: Research was conducted with aim to investigate the effects on the germination, yield and its components of some pre-treatments applied to black cumin seeds in Burdur ecological conditions. The experiment was set up as three replications according to Randomized Complete Blocks Design in the Çatağıl Village of the Central District of Burdur Province by using Çameli variety. The experiment, scarification, GA3, 15 days incubation at 4 °C, 30 days at 4 °C, 15 days at 4 °C+GA3, 30 days at 4 °C+GA3, soaking, soaking+GA3, and control plots were treatment to seeds with encourage germination before sowing. In the research were statistical significant different between plant height, number of side branches, number of capsules, seed yield, 1000 grain weight, essential oil content and germination rate, while statistical differences non-significant between number of main branches and fixed oil rate of black cumin. Generally, the combinations containing GA3 showed higher values in terms of the properties examined. As a result, it was concluded that soaking+GA3 can be recommended as priming treatment to seed due to higher seed yield and fixed oil rate in black cumin.
PubDate: Fri, 23 Jun 2023 00:00:00 +030
- The Relationship between Plant Nutrition and Plant Diseases
Authors: Zeliha KÜÇÜKYUMUK; Ümit BAYINDIR
Abstract: The relationship between plant, plant nutrients and disease pathogens is very complex. Plant nutrition has always been the primary component of disease control, although the relationship between plant nutrition and disease is often not on the agenda. Most soils and environments in which plants are grown contain abundant disease pathogens. Plants with nutrient deficiencies are less resistant and more susceptible to diseases. In this respect, all plant nutrients affect plant diseases. Some plant nutrients have a direct and greater effect on plant diseases than other nutrients. In this study, studies on the resistance of some plant nutrients (N, P, K, Ca, Mg, Fe, Zn, Mn, Cu, B) against some fungal and bacterial diseases are given. In addition, important plant nutrients against diseases and relations with diseases were examined. A well-planned fertilization program is essential for healthy production, optimum yield and maximum profit. The presence of nutrients is important in increasing yield and resisting diseases. It can be said that improving the nutrition of plants will help against not all diseases but many of diseases. The severity of most diseases can be reduced, and the chemical, biological, or genetic control of many plant pathogens can be enhanced by appropriate nutrition programme.
PubDate: Fri, 23 Jun 2023 00:00:00 +030
- The Effect of Liquid Fermented Fertilizer Derived from Biogas Systems on
Germination and Some Growth Parameters of Arugula (Eruca sativa L. cv.
Bengi) Under Salt Stress
Authors: Leman ÇETİNKOL; Aslıhan CESUR TURGUT
Abstract: The aim of this study was to investigate the effects of liquid fermented fertilizer application on germination and some growth parameters of arugula under salt stress conditions. Arugula (or rocket; Eruca sativa L. cv. Bengi) seeds were used as the plant material. Pre-treatment with liquid fermented fertilizer (1 hour) was applied to the seeds, which were then subjected to germination for seven days under salt stress conditions. The study was conducted with three salts (0, 75, and 150 mM NaCl), four pre-treatments (pure water and liquid fermented fertilizer at 1%, 5%, and 15% concentrations), and three replications. Various germination and growth parameters (percentage of germination over time, germination-hypocotyl percentage, radicle-hypocotyl length, fresh and dry weight, and water content percentage) were examined at the end of the 7th day. Depending on the increased salinity, the germination rates and growth parameters of the seeds decreased. However, positive effects of liquid fermented fertilizer application were observed on germination rate (5% pre-application), fresh (15% pre-application) and dry weight (1% and 15% pre-application). As a result of the study, it was determined that the application of liquid fermented fertilizers played a role in mitigating the effects of stress in partially different parameters and different salt levels.
PubDate: Fri, 23 Jun 2023 00:00:00 +030
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