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  Subjects -> SCIENCES: COMPREHENSIVE WORKS (Total: 374 journals)
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Türk Bilim ve Mühendislik Dergisi
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  This is an Open Access Journal Open Access journal
ISSN (Online) 2687-6086
Published by DergiPark Homepage  [187 journals]
  • Socio-Demographic Characteristics and Marketing Problems of Potato
           Producers in Afyonkarahisar Province

    • Authors: Bektaş KADAKOĞLU; Bahri KARLI
      Abstract: In this study, it was emphasized that the socio-demographic structure and marketing problems of potato producing enterprises in Afyonkarahisar province, Sandıklı and Şuhut districts, where potato production is intense, and propose suggestions for these problems. The enterprises were determined according to the stratified random sampling method. The data of the main material were obtained by face-to-face survey method from 79 enterprises producing potatoes in the 2019 production period. According to the research findings, It has been determined that the average farm width, age of producers, education level are 34.67 decares, 47.65 years, and 8.27 years, respectively. The farming and potato production experience period 25.78 years and 19.14 years, respectively. The average household size of the enterprises was 5.07 people. It was determined that 83.54% of the enterprises in potato marketing possessed problems that were primarily bad checks and non-payment of their money (68.18%). Due to the high level of education and potato production experience of potato producers, more efficient potato production is likely to eventuate at every stage from production to sales, provided that the producers are trained on production and marketing. In addition, it is considered that the state institutions and organizations purchasing potatoes at appropriate times will reduce the problems that may arise during the marketing of potatoes, which is a significant source of income for the people living in the region.
      PubDate: Wed, 22 Dec 2021 00:00:00 +030
  • Grain Yield and Stability Analysis in Two- and Six-Row Barley (Hordeum
           vulgare L) Genotypes

    • Authors: Turan KARAHAN; İlknur AKGÜN
      Abstract: The objective of this study was to determine the stability of 12 barley genotypes (5 two-row barley and 5 six-row barley, advanced barley lines, Altıkat and Sahin-91 varieties) to adapt to different environmental conditions in terms of seed yield. Experiment was designed as randomized block design in two locations (Diyarbakır and Adıyaman) between 2013-15 years. 6 kg phosphorus (P2O5) and 6 kg nitrogen (N) were applied to the decare with the sowing and the rest of the nitrogen (6 kg/da) was given in the tillering period. As for stability parameters, the mean values of genotypes, regression coefficient (bi), deviation from regression (S2d), coefficient of determination (R2), coefficient of variation (CV) and regression line intercept (a) were used. According to two-years experiment results of genotypes; grain number per spike 29.6-59.8, grain weight per spike 1.13-2.06 g, grain yield 415.3-653.5 kg/da. Also, it was determined that genotype 4 performed well adaptation to all environmental conditions, genotype 3, 7, 8 and 12 showed moderate adaptation to all environmental conditions, and genotype 1 and Altıkat were well adapted to well environmental conditions according to stability analysis carried out with grain yield. As a result, it was determined that environmental conditions significantly affect yield, yield components, of barley genotypes. Superior genotypes were determined in terms of grain yield and quality.
      PubDate: Wed, 22 Dec 2021 00:00:00 +030
  • Evaluating of the Grain Corn Cultivars Performances Suitable for Burdur

    • Authors: Mutlu ŞAHİN; Burhan KARA
      Abstract: Burdur region of Turkey is one of the provinces developed modern animal husbandry, there isn’t scientific a research has been conducted on grain corn which is a good animal feed. The research aimed to investigate grain yield and yield component traits of ten grain type hybrid dent corn cultivars as main crop at Burdur conditions in the 2019 and 2020 cropping seasons. The experiment was set up according to the Randomized Complete‐Block Design with three replicates. In the study, there were significant differences among the cultivars in terms of the studied characteristics in both years. The highest and the lowest yield values varied depending on cultivars and years. The grain yield of the cultivars varied between 8624-11803 kg/ha in the first year and 8463-12033 kg/ha in the second year. The highest grain yield was determined in Gladius and RX9292 cultivars, while the lowest values were identified in Lila and OSSK596 cultivars in both years. As a result of two consecutive years, two corn cultivars, Gladius and RX9292, are recommended for higher grain production in the Burdur ecological conditions.
      PubDate: Wed, 22 Dec 2021 00:00:00 +030
  • Interaction Between Entomology and Gene Technology: Bt-transgenic and Gene
           Drives for Pests Control

    • Authors: Jean Claude NDAYIRAGIJE; Tuğçe ÖZEK, Hacer ÇEVİK, İsmail KARACA
      Abstract: Pest control is the major agricultural activity for increasing crop productivity thus insuring food security. Recent pest management programs are depending too much on chemical pesticides, which are a threat to our health and environment. One of the greatest entomological achievements for the benefits of plant protection is the use of Bacillus thuringiensis to produce transgenic plants resisting pests. However, such organisms comprise inconveniences against human health and biodiversity in terms of genetic pollution. In many countries, the use of Genetically Modified Organisms is prohibited. This study review on integration of growing gene technology with actual scientific achievements can help to determine a sustainable solution to the pest’s problem. In this way, many literatures were referred on to comparatively criticize the effectiveness, safety and sustainability of gene drive over Bt transgenic based on scientific soundness. Gene drive technology is a new technic consisting of gene engineering and on-field monitoring of its transgenes. The case in point is the inappropriateness of Bt-transgenes. Practically, gene drive can be an alternative to Bacillus thuringiensis in pest control for increased safety and environmental protection.
      PubDate: Wed, 22 Dec 2021 00:00:00 +030
  • Determination of Quality Index of Eskişehir Transition Zone Agricultural
           Research Institute Soils by Linear Combination Technique

    • Authors: Hüseyin ŞENOL; Fatih KIZILASLAN
      Abstract: Soil is the most important component of the biosphere that hosts life on earth. Evaluation of soil quality is important for the sustainability of food security. In this study, it was aimed to determine the soil quality index of the soils in the central campus of the Eskişehir Transition Zone Agricultural Research Institute. In the study, the study area was divided into grids of 100 m X 100 m and 242 soil samples were taken. Twenty different properties including texture, HA, TK, SN, AS, OM, EC, pH, lime, P, K, Ca, Mg, Na, Mn, Zn, Fe and Mn were analyzed in soil samples. The determined criteria were weighted using the analytical hierarchy process. Soil quality index was calculated from the obtained data, and the spatial distribution map was obtained using the Inverse Distance Weighted Interpolation (IDW) method. There is no salinity problem in soils with slightly alkaline reaction. While the lime content of 19.01% of the soils was classified as too calcareous, the organic matter content was determined to be low in 70.25% of the soil. Soils are generally fine-textured and 69.84% of them are determined in clay texture class. While the bulk density values of the soils were between 1.07 g/cm3 and 1.59 g/cm3, the field capacity and wilting point varied between 14.85-46.17%, 9.53%-37.18%, respectively. As a result of the study, it was determined that 6.6% of the study area is very low, 68.6% is low, 24.8% is in the good soil quality class.
      PubDate: Wed, 22 Dec 2021 00:00:00 +030
  • The Effect of Nitrogen Fertilizer Forms and Humic Acid Treatments on Fixed
           Oil and Alkaloid Contents of Poppy (Papaver somniferum L.)

    • Authors: Halil ALTINTAŞ; Nimet KARA
      Abstract: The research was carried out to investigate the effects of different nitrogen fertilizer forms (ammonium sulfate, nitropower and urea) and their treatments with humic acid on the fixed oil and alkaloid content of poppy. Experiment was set up according to the randomized complete blocks design by using the “Ofis 4” poppy variety in Isparta conditionsEffect on fixed oil content of poppy of fertilizer forms and their treatments with humic acid were statistically (p<0.01) significant, and the oil content was higher compared to control (nitrogen-free) and alone humic acid treatments. In terms of fixed oil content, themselves differences among alone nitrogen forms and their treatments with humic acid were not statistically significant. The fixed oil content between 42.72-44.41%, the morphine 0.588-0.789%, the codeine 0.090-0.152%, the oripavine 0.024-0.032%, the thebaine 0.028-0.092%, the papaverine 0.003%-0.005%, and the noscapine content 0.022-0.096% of poppy varied. As a result; all three forms of nitrogen fertilizer with humic acid in poppy can be applied due to the higher fixed oil and alkaloid content, and among these ammonium sulfate + humic acid combination can be recommended.
      PubDate: Wed, 22 Dec 2021 00:00:00 +030
  • Lethal Effects of Different Biopesticides on Mecorhis ungarica (Herbst,
           1784) (Coleoptera: Rhynchitidae)

    • Authors: Asiye UZUN; Sinan DEMİR, Ozan DEMİRÖZER
      Abstract: Rose weevil, Mecorhis ungarica, is an important pest that causes economic losses in oil rose production areas. In the present study, the lethal effects on adult individuals of this pest of different biopesticides were investigated under laboratory conditions. The experiment was performed in a randomized plot design with 10 replications and 5 adults in each replication. BIM-001 of Beauveria bassiana and commercial preparations 1.5% Lecanicillium lecani strain V1-1 (Nibortem), 1.5% Beauveria bassiana strain Bb-1 (Nostalgist) and Deltamethrin (Delmetrin) were used. The spore concentration of each preparation or isolate was applied to the transparent plastic boxes containing the adults by spraying under 1 atm pressure for 10 seconds (0.5 ml/cm2). Observations were made on the 3rd, 7th and 15th days after the application by recording the number of dead and alive. No difference was observed between the control and other biological origin biopesticides and B. bassiana BIM-001 isolate, except for the chemical-based pesticide Delmetrin, in the mortality values that occurred 3 days after the application in adult individuals of the rose weevil beetle. There was no difference between the mortality values of Nibortem, Nostalgist and B. bassiana BIM-001 isolate 7 days after the application, while there was no statistical difference between Delmethrin and Nibortem 15 days later.
      PubDate: Wed, 22 Dec 2021 00:00:00 +030
  • Comparison of the Biological Diversity Parameters of Hexapoda Species
           Living on the Soil Surface in Different Ecosystems in Balcalı (Adana)

    • Authors: Gülbarış OĞUZ; Gökhan AYDIN, Mehmet Rifat ULUSOY
      Abstract: This study was carried out in different ecosystems in Adana province Çukurova University Balcalı Campus between October 2017 and September 2018 to compare the biodiversity parameters of Hexapoda species that live on the soil surface in different ecosystems. Field studies were carried out by using the pitfall trap sampling method in a total of 8 different habitats: five agroecosystems (Vegetable, Citrus, Olive, Pomegranate, Vineyard) where agricultural activities are continuing, two pasturelands where agricultural activities are not carried out today and afforestation Area with Pinus brutia.According to Shannon-Wiener (H`) and Simpson Diversity (D) index results, the most diverse habitat was found to be Mr1 with values of 2.011 and 0.8244. The habitat with the lowest calculated diversity index values was the NA sample area, respectively, with 0.7675 and 0.3285. The Simpson values were calculated in the NA habitat with the highest value of 0.6715 depending on the biodiversity parameter results and in the Mr1 habitat with the lowest value of 0.1756. Shannon and Simpson Evenness interspecies population density values were determined in the AAl habitat with 0.9629 and 0.8909. According to Sörenson Similarity index, agroecosystems were found similar to each other. According to this; among citrus and olive agroecosystems, 0.636; among Citrus and Vineyard ecosystems, 0.632; similarity values were determined. The study showed that the natural areas were effective in regaining insect diversity.
      PubDate: Wed, 22 Dec 2021 00:00:00 +030
  • Assessing the Acute Toxicity of Chlorantraniliprole and Flubendiamide in
           Bombus terrestris Workers of Different Ages

    • Authors: İsmail Yaşhan BULUŞ; Asiye UZUN, Ozan DEMİRÖZER, Ayhan GÖSTERİT
      Abstract: Bombus terrestris colonies are used for pollination in greenhouse tomato cultivation. Different-ages workers in these colonies involved in foraging activities in line with the necessities of the colony face the risk of exposure to chemicals used. Therefore, exposure of forager workers to chemicals directly and other individuals in the colony indirectly may affect the pollination performance of colonies. For this reason, knowing the effect of chemicals used in pest control on bumblebees is also important in terms of effectively benefiting from colonies for pollination. This study was carried out to investigate the effects of the recommended doses of insecticide active ingredients with Chlorantraniliprole and Flubendiamide (12 g/100 L water and 15 g/100 L water, respectively), which are highly preferred against Tuta absoluta pest in tomato cultivation, on B. terrestris worker bees of different ages. Insecticides were applied to workers of 1 day, 3 days, 7 days, and 10 days of age by spraying method and the total of 60 microcolonies were prepared, 15 each in each age group. Microcolonies formed by workers exposed to insecticides were checked on the 1st, 3rd, 5th, and 7th days and the number of dying worker bees was recorded. When the results were examined, the total workers mortality rate in all age and experiment groups remained below 25%. According to the International Organization for Biological Control (IOBC) toxicity scale, plant protection products with the active ingredient Chlorantraniliprole and Flubendiamide used in the study were found to be non-toxic to B. terrestris worker bees of different ages.
      PubDate: Wed, 22 Dec 2021 00:00:00 +030
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