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Evaluation of The Spirulina (Arthrospira platensis Gomont) Antimicrobial Activity
2022
Amor Bencheikh | Walid Mamache | Asma Gharzouli | Ahlem Kouachi | Haif Khadidja | Meriem Barkahoum Daichi | Noureddine Rouag
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.
Mostrar más [+] Menos [-]Determination of The Yield and Yield Parameters of Demre Sivrisi, Dogal Sarı Sivri and Dogal Carliston (Capsicum annuumm L.) Pepper Varieties Growed By Fertigation Method in Greenhouse Conditions
2022
Ahmet Demirbaş | Hasan Durukan | Mustafa Öztük | Handan Saraç
Demre Sivri, Dogal Sarı Sivri and Dogal Carliston pepper (Capsicum annuum L.) species were used as test plants in the study. The research was carried out in a total of 9 plots with 3 replications according to the randomized blocks experimental design. Seeds were made into seedlings by regularly watering for about 60 days in the prepared peat and perlite mixture (1:1 V/V) in viols and planting was carried out in the greenhouse environment when they had 3-4 leaves. Irrigation processes in the research were carried out by drip irrigation method, and irrigation was carried out every 3 days during the 20 days period from planting to 7 leaves of pepper plants. In other processes, irrigation was done every 2 days until the plants were harvested. Considering the results of soil analysis in the research, fertilization was done by fertigation method (fertilization with drip irrigation) for pepper purely at 20 kg N da-1, 6 kg P2O5 da-1, 20 kg K2O da-1. In the study, nitrogen (N) ammonium sulfate (NH4)2SO4, phosphorus (P) MKP (monopotassiumphosphate) and potassium (K) potassium nitrate (KNO3) forms were applied. N, P, K, calcium (Ca), magnesium (Mg), iron (Fe), zinc (Zn), manganese (Mn) and copper (Cu) analyzes were made in the leaf samples taken when the pepper plant reached half of the fruit size and yield were determined. According to the results of the research, Dogal Carliston stood out in the first year in terms of yield (2987 kg da-1), while Demre Sivri (2788 kg da-1) gave the highest yield in the second year.
Mostrar más [+] Menos [-]Determination Effects of Sulfur Applications on Some Fungal Diseases of Potato Tubers (Solanum tuberosum L.)
2022
Arif Şanlı | Hülya Özgönen Özkaya
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.
Mostrar más [+] Menos [-]Bees in Pollination and the Effect of Global Warming on Bees
2022
Nuray Şahinler | Nesibe özge Toy
Beekeeping, which is a livestock branch made depending on nature, is to collect nectar from many vegetable sources from various regions, and to transform them into different bee products in the most economical and appropriate seasonal periods. Many products are obtained with beekeeping. The contribution of these products to the economy is very high. The use of bee products on human health has also increased in recent years. Apart from these, bees also make important contributions to the ecosystem. They are pollinators of many plant species existing in the world and they also serve as pollinators of many fruits and vegetables produced in greenhouses. Thanks to the pollinatorship of bees, the quality of the products obtained is increasing. Again, with its pollinator function, bees ensure the continuity of many endangered plants, and play an important role in ecosystem balance by increasing plant and animal diversity. Bees are not only involved in the pollination of plants that need an external pollinator, but also the product quality and quantity are increased in many plants that perform their own pollination. In this review, the importance of bees in pollination and the effect of global warming on bees are mentioned.
Mostrar más [+] Menos [-]Effects of Light and Dark Conditions on Root Development of Black Mulberry (Morus nigra L.) Hardwood Cuttings
2022
Fatmanur Çezik | Çetin Çekiç | Kenan Yıldız | Hakan Karadağ | Osman Nuri Öcalan
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.
Mostrar más [+] Menos [-]Küresel Salgın ve Türkiye Hayvancılığı Üzerine Etkileri
2022
Sibel Alapala Demirhan | Nuray Şahinler
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.
Mostrar más [+] Menos [-]The Effects of Different Organic and Inorganic Fertilizer Applications on Yield and Improvement of Maize Plant
2022
Hasan Durukan | Zekeriya Duran | Handan Saraç | Ahmet Demirbaş
In this study, it was aimed to determine the effects of organic and inorganic fertilizer applications at different rates on the yield and development of maize plant. The research was carried out in three replications in greenhouse conditions, according to the randomized plot design, in plastic pots with a capacity of three kg. Applications in research; control, conventional fertilization, gypsum (1% and 2% w/w), anhydrite (1% and 2% w/w), calcite (1% and 2% w/w), perlite (1% and 2% w/w), vermicompost (5% and 10% w/w) and animal manure (5% and 10% w/w). Maize was used as the test plant. Maize plant was harvested approximately 60 days after planting and analysis of dry matter production and nitrogen, phosphorus, potassium, calcium, magnesium, iron, zinc, manganese and copper were made. According to the results of the research, the highest dry matter production was determined at 15.4 g pot-1 and 10% of the vermicompost application. This application was followed by conventional fertilizer application (13.64 g pot-1). In addition, vermicompost application in general had higher values in macro and micro element concentrations of maize plant.
Mostrar más [+] Menos [-]Investigation of the Effect of Fertilizer Doses on Bean Pod Properties
2022
Leyla İdikut | Duygu Uskutoğlu
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
Mostrar más [+] Menos [-]Bjerkandera adusta Collected from Niğde: Analysis of Total Phenolic Compound, Antioxidant, vnd Antimicrobial Properties
2022
Elif Ildız | Şükrü Canpolat | Cemil İşlek | Elif Yürümez Canpolat | Yasemin İşlek | Ilgaz Akata
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.
Mostrar más [+] Menos [-]Rural Development and Food Security Through Homestead Vegetable Production: A Case Study
2022
Kanij Fatema Tuz Zohora | Bir Jahangir Shirazy | Md. Asaduzzaman | Nadia Akter | Saikat Hossain Bhuiyan | A. K. M. Ariful Hoque | A. A. M. Mohammad Mustakim | Md. Maniruzzaman | A. B. M. Zahidul Hoque | Abul Kalam Azad
Cumilla Sadar Dakshin region is highly diverse in respect to land types, topography, agro-ecology, land-use pattern, cropping systems and crop variability & variety. Agricultural development of the region largely depends on the reliable and comprehensive statistics of the existing cropping cultivation and its related system adopted by the farmers. To investigate the homestead vegetable production and its impact on family nutrition, food security, income generation as well as involvement of female members a survey study was conducted at Cumilla Sadar Dakshin during 2019. A total of 150 selected homesteads were surveyed for this purpose through developed questionnaire and focus group discussion. Both primary and secondary data has been collected from different sources to fulfill the objectives of the study. The results of this study indicated that the farmer’s age, marital status, education level, farm size, source of income, women participation etc. Farmer’s knowledge and farming experiences, perception and attitude differs on different demographic conditions like: age, sex, education, farm size, training which significantly influence the adoption of modern technologies provided by different organizations. The results also showed that women contribution in homestead vegetable production is high in medium farmer’s category 41.67% and low in small farmers 36.36% respectively. The highest number of total vegetables was produced by the medium farmer (63,732 kg/year) followed by small (39,445 kg/year) and marginal farmer (25,514 kg/year). This study provides some recommendation which might impacts on betterment of farmers’ occupational and socio-economic condition by establishing proper policy and legislation both in local and national level administration as well as agricultural extension.
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