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Adoption-Diffusion Model of Farm Innovations: Its Applicability to Radical Terraces Project in Rwanda Full text
2022
Murwanashyaka Emmanuel | Chitere Preston Orieko | Kariuki James Gichuru
The farming technique of radical terracing is one of the new agricultural technologies introduced in Rwanda to enhance farming activities in the highland areas. The study was designed to analyze the applicability of the adoption and diffusion model of farm innovation on adopting radical terraces in Rwanda. It adopted a descriptive correlational research design to the farmers owned radical terraces in Nyamagabe District. The purposive sampling technique was applied to select 19 Key Informants and 192 farmers. Both quantitative and qualitative data were collected through questionnaires, face-to-face interviews, direct observation and documentary sources. Descriptive and inferential statistics were used for quantitative data analysis whereas thematic and narratives content analyses were used on qualitative. The research outcomes show that the level of farmers' adoption was medium. Besides, the farmers’ access to agricultural information; and farmers’ participation were found to have a positive influence on the applicability of the adoption-diffusion model on the adoption of radical terraces. The study showed that the adoption of radical terraces in Nyamagabe depended on the compatibility with the existing values and practices among farmers based on the information-contagion model and the social participation model that is widely used in the agricultural context. The study recommended the government continue sensitizing farmers on the importance of adopting radical terraces for better use and maintenance as a modern farming practice. Further research should focus on the applicability of technology characteristics user's context model on the adoption of radical terraces in Rwanda.
Show more [+] Less [-]Spreadable Pumpkin Seed Cream Production and Determination of Its Nuritional, Textural and Sensory Properties Full text
2022
Ezgi Demir Özer | Rümeysa Hacer Güneş | Muhammed Furkan Yılmaz
This work aimed to develop a formulation of pumpkin seed paste and to evaluate its nutritional, sensory and textural properties. In the study, a delicious product was tried to be obtained with raw materials with high functional properties. Pumpkin Seed Cream was produced in four groups as roasted, roasted and cinnamon added, unroasted, unroasted and cinnamon added. The roasting process was carried out for 12 min. at 160°C. The effect of roasting pumpkin seeds and adding cinnamon to the formulation on cream samples produced within the scope of the study were investigated. Firmness, consistency, cohesiveness and spread ability properties were investigated of samples. It was determined that the roasting of pumpkin seeds used in the formulation created a statistically significant difference in the spreadability properties of the samples. As a result of the color analysis of the samples, the brightest and greener color intensity was detected in the unroasted group. The appearance, odor, texture and flavor profiles of samples were examined in sensory analysis. In terms of general taste, the unroasted and cinnamon-free group was most appreciated.
Show more [+] Less [-]An Overview on The Use of Lemna minor L. in the Field of Health and Nutrition Full text
2022
Eda Sönmez Gürer | Evren Algın Yapar
Lemna minor L. is an aquatic plant that is resistant to hard conditions, is a fast growing, rapidly multiplying vascular floating macrophyte, and is widely distributed in wetlands in our country and around the world. Lemna minor L., also known as duckweed, contains essential nutrients such as proteins, carbohydrates and fats, as well as various secondary metabolites that are beneficial for humans. Therefore, it is a remarkable source of alternative food. In addition to its traditional medical use, it is thought that taking into account in the development of herbal medicines and cosmetics today in the light of scientific studies will be beneficial in terms of developing value-added products and bringing them into the economy. In this review, studies and articles on the usability of Lemna minor L. in the field of health and nutrition are reviewed and presented with an overview.
Show more [+] Less [-]Is There A Synergy in Adoption of Climate Smart Agricultural Practices? Evidences from Ethiopia Full text
2022
Tamirat Girma Feyisa
This study assessed the intensity of adoption of climate-smart agricultural practices (CSA), identified determinants of the adoption, and examined adoption synergies and trade-offs among the practices in Ethiopia. The study used cross-sectional data collected by the Ethiopian Central Statistical Agency with the support of the World Bank in 2018/2019. The analysis was done using descriptive statistics and multivariate probit model. Widely promoted CSA technologies i.e. conservation tillage, manure, crop residues, compost, and soil and water conservation practices were considered in the study. The study found soil and water conservation practices were the most widely adopted technologies (77% of farmers) followed by manure application (56% of farmers), and residue cover (54% of farmers). Among the adopters, 43% and 13% of them used conservation tillage and applied compost on their farms respectively. Area-based intensity of adoption of soil and water conservation practices, residue cover, conservation tillage, manure, and compost were 63%, 25%, 18%, 14% and 3%, respectively. The study indicated improvements in government services such as extension, credit, market and watershed programs enhance adoption of CSA practices. Adoption of manure and compost, residue cover and compost, and residue cover and conservation tillage had a positive and significant correlation, implying that adopting one practice increases the likelihood of adoption of the other practice for the same farmer. In conclusion, the government needs to use the opportunity of complementarity effect among adoption decision of the practices and work on driving factors identified to enhance the adoption and build resilient agriculture.
Show more [+] Less [-]Selection of Plant Location for Hemp Fibre Production in TR72 Region Full text
2022
Sinan Dündar
This study has emerged within the scope of the sectoral studies requested by the Ministry of Industry and Technology of Turkish Republic from the Development Agencies, and aims to select the optimal plant location among the organized industrial zones in the TR72 Region consisting of Kayseri, Sivas and Yozgat provinces in order to produce processed fibre from the raw fibre obtained as a by-product of hemp cultivation. The criteria such as parcel unit price, electricity unit price, service water unit price, waste water unit price, natural gas unit price, insurance premium employer's share support period, investment contribution rate for insurance premium employer’s share support, tax reduction rate, investment contribution rate for tax reduction, interest or profit share support, access to raw material sources, access to market and access to qualified labour supply that form the basis for the selection of plant location were determined and weighted according to the Stepwise Weight Assessment Ratio Analysis (SWARA) method The most available plant location among the emerging alternatives was determined by using Multi-Criteria Decision Making Methods consisting of Combined Comprimise Solution (COCOSO), Complex Proportional Assessment (COPRAS) and Multi-Attributive Ideal-Real Comparative Analysis (MAIRCA). Consequently, it was concluded that Kaleseramik Private Organized Industrial Zone (OIZ) located in Yozgat province is the most available plant location among the other seven alternatives.
Show more [+] Less [-]Biotechnological Micronutrient Production: Recombinant DNA Technology-Based Vitamin A Synthesis Full text
2022
Asli Giray | Sibel Pekdemir
Vitamin A is an essential micronutrient and has important functions such as vision, growth, reproduction embryogenesis, cellular differentiation, and proliferation, immune function and epithelial protector in the organism. Biotechnological production of vitamins is increasing due to their advantages and significant advances. The vitreoscilla hemoglobin (VHb) gene is extremely effective in binding oxygen and conducting it under hypoxic conditions. In this study, the production of vitamin A in E. herbicola (wild type) and its recombinant strains was investigated in LB medium and M9 medium (containing high concentrations (1%) of different carbon sources). The maximum production of vitamin A of the recombinant strain with the hemoglobin gene (vgb+) was observed in including glucose and sucrose M9 medium and their total product levels in vgb+ recombinant strain were 0.14 µg/ml and 0.1 µg/ml, respectively. The vitamin A production in the M9 medium with glucose and sucrose were 2-fold and 1.4- fold higher than that of the wild strain, respectively. The extracellular product level (0.07 µg/ml) in LB was 7-fold higher than wild strain at 48 h. These results reveal that the expression of VHb in E. herbicola in the both LB and M9 medium (containing 1% glucose and 1% sucrose, specially) increase the vitamin A production.
Show more [+] Less [-]Raphanus Sativus Yumrusu Belirli Ekstraktlarının Etkisinin Vicia Faba Üzerinde Botrytis Cinerea’ya Karşı Toplam Protein İçeriği ve Peroksidaz Aktivitesinin Değerlendirilmesi Full text
2022
Nergis Kaya | Tayfun Kaya | Soner Yiğit
Tıbbi bitki Raphanus sativus L. yumru kökünün su, etanol ve metanol ekstraktlarının Vicia faba L. (bakla) yapraklarında Botrytis cinerea fungusunun oluşturacağı kurşuni küf hastalığına karşı toplam protein içeriği ve peroksidaz (POX) aktivitesi bakımından bitkide meydana getirebileceği antioksidan savunma sistemi spektrofotometrik olarak analiz edilmiştir. R. sativus yumru kökünün su, etanol ve metanol ekstraktlarının stok solüsyonları dimetil sülfoksit (DMSO) ile hazırlanmıştır. 105 spor/mL B. cinerea spor süspansiyonu hazırlanmıştır. V. faba yapraklarına sadece distile su (negatif kontrol), sadece DMSO, sadece B. cinerea (pozitif kontrol), sadece ekstrakt uygulamaları (distile su, etanol ve metanol ekstraktı) ve ekstrakt uygulamaları sonrasında B. cinerea uygulaması gerçekleştirilmiştir. Yapraklar, analizi yapılacak olan yöntemlere uygun olarak ekstrakte edilmiştir. Ekstraktlardan elde edilen süpernatantlardan analizler spektrofotometrik olarak gerçekleştirilmiştir. Araştırma sonucunda, toplam protein içeriğinin distile su uygulanan (negatif kontrol) gruba kıyasla ekstrakt:fungus uygulama gruplarında artış gösterdiği saptanmıştır. Fakat sadece fungus uygulanan (pozitif kontrol) gruba kıyasla genel olarak azaldığı belirlenmiştir. POX aktivitesinin ise, negatif kontrol grubuna kıyasla artış gösterdiği saptanmıştır. Toplam protein içeriği ve POX aktivitesi, sadece ekstrakt uygulanan gruplarda negatif kontrol grubuna göre artış göstermiştir. En yüksek POX aktivitesi, 10 mg/mL distile su:fungus uygulamasından elde edilmiştir. Bu açıdan, ekstrakt:fungus uygulanan gruplar arasında en iyi antioksidan aktivitenin 10 mg/mL distile su:fungus uygulaması olduğu belirtilebilmektedir. Bu açıdan bakıldığında, R. sativus saf su, etanol ve metanol ekstraktlarının V. faba yapraklarında antioksidan savunma yanıtı verdiği belirtilebilmektedir.
Show more [+] Less [-]Rice Blast, A Major Threat to the Rice Production and its Various Management Techniques Full text
2022
Kapil Simkhada | Rabin Thapa
Rice (Oryza sativa L.) is the most important staple cereal crop which is consumed by more than 50% of world population. It contributes 23% and 50% of total calories consumed by world and Nepalese population respectively. Among various abiotic factors affecting rice, rice blast is the most disastrous, causing 70-80% yield loss. This disease was originated in China around 7000 years ago. In Nepal, it was first reported in Thimi, Bhaktapur in 1966. It is caused by a filamentous ascomycete fungus Magnaporthe oryzae (Anaemorphic form- Pyricularia oryzae). It infects all the developmental stage of plant and produce symptoms on the leaf, collar, neck, panicle and even in the glumes. It decreases the rice production by an amount, enough to feed 60 million people every year. Cloudy weather, high relative humidity (93-99%), low night temperature (15- 20°C), longer duration of dew is the most favorable condition for the outbreak of disease. The most usual approaches for the management of rice blast diseases are management in nutrient fertilizer and irrigation, application of fungicides and plantation of resistant cultivars. Besides, the use of extracts of C. arabica are reported to have an inhibitory effect on the disease. Seed treatment with Trichoderma viridae @ 5ml/lit of water have also been found effective. The chemical means of controlling blast disease shall be reduced, instead eco-friendly measures like biocontrol agents, resistant varieties, plant extracts can be practiced for disease control. Different forecasting model can be used in order to predict the disease prevalence.
Show more [+] Less [-]Exploring Zinc and Boron Chemo-Priming Effects on Low-Vigour Seed Germination and Seedling Establishment of Sunflower (Helianthus annuus L.) Full text
2022
Negar Ebrahim Pour Mokhtari | Ferhat Kızılgeçi | Raees Ahmed | Muhammad Aamir Iqbal
Poor germination and suboptimal seedling growth constitute as prime factors in lowering the achene yield and seed oil content of sunflower (Helianthus annuus L.), while chemo-priming with micronutrients might serve as a biological viable strategy provided source and dose optimization are performed. A trial was executed to appraise the comparative impact of seed priming with different doses of micronutrients like boron (B) and zinc (Zn) on sunflower germination and seedling growth traits of sunflower. The experiment was comprised of six treatments of B (0, 0.2, 0.4, 0.8, 1.6, 3.20 ppm) and Zn (0, 4, 8, 12, 16 and 20 mM) each, while seed germination, root and seedling growth related traits were taken as experimental variables. The results revealed that all treatments remained ineffective regarding seed germination and seed vigour of sunflower, while B and Zn doses of 0.2 ppm and 12 mM respectively, enhanced seedling emergence rate and vigour. The Zn (8 mM) significantly improved root length along with their fresh and dry weights, while all doses of B imparted antagonistic effects on root attributes. Likewise, Zn (8 mM) remained superior for shoot length, fresh and dry weights, while higher doses of B remained contra-productive for shoot growth of sunflower.
Show more [+] Less [-]Recent Progress on Melatonin-Induced Salinity Tolerance in Plants: An Overview Full text
2022
İlkay Yavaş | Saddam Hussain
In this context, it is necessary to select and develop salt-tolerant genotypes that can grow in salty soils and have high yields, and formulate strategies which may enhance the plant survival under salinity stress. Melatonin (N-acetyl-5-methoxytryptamine) is an important biological hormone that provides resistance to abiotic stress conditions and can be secreted by plants. Melatonin concentration in plants varies depending on genotype, temperature and growth period. Increase in melatonin concentration is associated with increased SNAT and HIOMAT/ASMT enzyme activity. It plays an important role in gibberellic acid and abscisic acid biosynthesis during the germination and provides plant growth and development. Exogenous application of melatonin significantly alleviates chlorophyll degradation and stomatal closure caused by salt stress, improves photosynthesis and enhances plants' salt tolerance. Besides it significantly reduces the harmful effects of salinity by regulating plant physiology, improving plant morphology, photosynthesis and activities of antioxidant enzymes. The present review discusses the recent studies on the effect of melatonin on plant growth and physiology against salt stress that have important impacts on plant growth and development have been given according to the findings of various researches. It also highlights the mechanim/s of melatonin-induced salinity stress tolerance in plants.
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