Infestation Of Guava By Anastrepha Fraterculus (Diptera: Tephritidae): Preferred Ripening Stages And Influence Of Fruit Peel Coloration, Flavia Queiroz De Oliveira, Arlindo Leal Boiça Júnior, Maria De Lourdes Zamboni Costa, Jacinto De Luna Batista, Karen Zamboni Costa, Julio Marcos Melges Walder
Turkish Journal of Agriculture and Forestry
The current study aimed to verify the preferred guava fruit ripening stage for egg laying by Anastrepha fraterculus (Diptera: Tephritidae) and to determine the influence of peel coloration of the fruits of 2 cultivars on infestation. The cultivars used were Paluma and Século XXI. The infestation level was evaluated in cages, considering 2 conditions: multiple-choice and nonchoice tests. The infestation levels of A. fraterculus differed between the green and the green-ripe stages in the multiple-choice test. In Paluma fruits with the nonchoice test, the infestation was highest during the ripe stage. There were no differences in infestation levels of A. …
Solvent Optimization And Characterization Of Fatty Acid Profile And Antimicrobial And Antioxidant Activities Of Turkish Pistacia Terebinthus L. Extracts, Muhammed Zeki̇ Durak, Gülsüm Uçak
Turkish Journal of Agriculture and Forestry
The present study investigated 12 different Pistacia terebinthus L. (terebinth) fruits, harvested or purchased in Turkey, for fatty acid composition, radical scavenging, antimicrobial activity, and total phenolic content. Solvent optimization for the samples was prepared by using a simplex lattice mixture design prior to the analysis. The optimum solvent mixture was 39% water and 61% acetone, based on the maximization of extraction yield of phenolic compounds. Total phenolic contents (TPCs) of the extracts varied from 12,189 mg GAE/1000 g extract to 36,392 mg GAE/1000 g extract. 2,2-Diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activities of the extracts varied over a wide range (8.86%-64.43%) …
Vinyl Acetate-Modified Microcrystalline Cellulose-Reinforced Hdpe Composites Prepared By Twin-Screw Extrusion,
2015
TÜBİTAK
Vinyl Acetate-Modified Microcrystalline Cellulose-Reinforced Hdpe Composites Prepared By Twin-Screw Extrusion, Ni̇hat Sami̇ Çeti̇n, Ni̇lgül Çeti̇n, David Paul Harper
Turkish Journal of Agriculture and Forestry
In order to compare the effects of microcrystalline cellulose (MCC) as a filler, MCC and high-density polyethylene (HDPE) composites were produced with 4 different wt.% MCC loadings (1 wt.%, 5 wt.%, 10 wt.%, and 20 wt.%). To improve the compatibility between MCC and the matrix, MCC was acetylated with vinyl acetate (VA), and 2 different MCC-HDPE composites were produced with 5 wt.% and 10 wt.% VA-modified MCC loadings. Untreated MCC and VA-modified MCC-reinforced HDPE pellets were produced by using a twin-screw extruder. The MCC-HDPE composites were then compression-molded and the mechanical properties of the composites were determined. The thermal and …
Effects Of Peat Drainage On Labile Organic Carbon And Water Repellency In Ne Poland,
2015
TÜBİTAK
Effects Of Peat Drainage On Labile Organic Carbon And Water Repellency In Ne Poland, Barbara Kalisz, Andrzej Lachacz, Roman Glazewski
Turkish Journal of Agriculture and Forestry
Hot and cold water-extractable organic carbon (HWC and CWC, respectively) fractions, as good indicators of organic matter quality, as well as water repellency (WDPT test) and state of secondary humification were analyzed in topsoil samples of peatland drained for agricultural purposes 160 years ago. The examined sites (drained and used as grassland) at the peatland had been affected by the moorsh-forming process. During this process, intense mineralization and secondary humification of organic matter took place. The state of transformation of organic soils varied from weak to complete degradation. The HWC contents ranged between 2.623 and 3.572 g kg^{-1} in field-moist …
Inorganic Nitrogen Fertilizers Induce Changes In Ammonium Assimilation And Gas Exchange In Camellia Sinensis L.,
2015
TÜBİTAK
Inorganic Nitrogen Fertilizers Induce Changes In Ammonium Assimilation And Gas Exchange In Camellia Sinensis L., Xu Hua Du, Fang Ren Peng, Jiang Jiang, Peng Peng Tan, Zhi Zhuang Wu, You Wang Liang, Zhe Ke Zhong
Turkish Journal of Agriculture and Forestry
Camellia sinensis L. is one of the most economically important crops in the world today. The leaves of this plant are harvested for tea production on a massive scale through a process that requires a large amount of inorganic nitrogen (N). However, knowledge of how inorganic nitrogen regulates the growth physiology of C. sinensis L. remains limited. In order to investigate its effects on gas exchange, N assimilation, and the efficiency of N use in C. sinensis L., we carried out experiments with 4 cultivars (WNZ, YS, ZN139, and LJ43) under 4 different treatments: 1) a control treatment, 2) a …
Investigation Of Fatty Acid Composition And Trans Fatty Acid Formation In Extracted Oils From French-Fried Potatoes And Classification Of Samples Using Chemometric Approaches, Eli̇f Yildirim, Ömer Sai̇d Toker, Safa Karaman, Ahmed Kayacier, Mahmut Doğan
Turkish Journal of Agriculture and Forestry
The present study investigates fatty acid composition and trans fatty acid formation in oils extracted from French-fried potatoes, which were produced in the laboratory and collected from different restaurants. Potatoes were fried at 180 °C at different frying periods (1, 7, 13, 19, 25, and 31 min) and the fatty acid composition of the extracted oils was determined. Principal component analysis and hierarchical cluster analysis were used to characterize and classify the samples. Four major fatty acids were identified in the samples, namely palmitic acid, stearic acid, oleic acid, and linoleic acid. Linolelaidic acid (C18:2 trans) was detected in the …
Evaluation Of Native Entomopathogenic Nematodes For The Control Of The European Cherry Fruit Fly Rhagoletis Cerasi L. (Diptera: Tephritidae) Larvae In Soil, İlker Kepenekci̇, Selçuk Hazir, Ayşe Özdem
Turkish Journal of Agriculture and Forestry
Turkey is the world's largest producer of sweet cherries. The European cherry fruit fly, Rhagoletis cerasi L. (Diptera: Tephritidae), is a major pest of sweet cherry crops in Europe and Turkey. The detection of only one larva in the fruit by the processor can result in the rejection of the entire crop of that orchard and/or farm as \"wormy\" and unmarketable. The main control tactic for R. cerasi is to prevent the females from laying eggs in the fruit. Currently, only a few insecticides are being used, and their application is debatable due to problems with residual ecotoxicity for humans …
Production Of Dihaploids In Durum Wheat Using Imperata Cylindrica L. Mediated Chromosome Elimination,
2015
TÜBİTAK
Production Of Dihaploids In Durum Wheat Using Imperata Cylindrica L. Mediated Chromosome Elimination, Nafi̇z Çeli̇ktaş, Murat Ti̇ryaki̇oğlu, Ersi̇n Can, Duygu Kutlay, Rüştü Hati̇poğlu
Turkish Journal of Agriculture and Forestry
The possibility of obtaining dihaploid durum wheat (Triticum durum L.) plants by interspecific hybridization with Imperata cylindrica L. was studied. Ten local varieties and 1 commercial durum wheat variety (Triticum durum L., 2n = 4x = 28; AABB) were used as maternal lines. Imperata cylindrica L. (2n = 2x = 20) ecotypes sampled from different districts of Hatay were used as the pollen source. Isolated embryos were placed in an MS medium for plant regeneration 14 days after the interspecific hybridization. The highest average seed setting, embryo formation, and dihaploid plant regeneration for the different hybrid combinations were determined as …
Tomato Salt Tolerance: Impact Of Grafting And Water Compositionon Yield And Ion Relations,
2015
TÜBİTAK
Tomato Salt Tolerance: Impact Of Grafting And Water Compositionon Yield And Ion Relations, Gülüzar Duygu Semi̇z, Donald L. Suarez
Turkish Journal of Agriculture and Forestry
No abstract provided.
Allelopathic Effects Of Decomposed Leaf Litter From Intercropped Trees On Rape,
2015
TÜBİTAK
Allelopathic Effects Of Decomposed Leaf Litter From Intercropped Trees On Rape, Xiaoxi Zhang, Zengwen Liu, Nan Tian, Nhu Trung Luc, Bochao Zhu, Yuanhao Bing
Turkish Journal of Agriculture and Forestry
No abstract provided.
Effect Of Plant Growth-Promoting Bacteria And Arbuscular Mycorrhizal Fungi On Lipid Peroxidation And Total Phenolics Of Strawberry (Fragaria × Ananassa 'San Andreas') Under Salt Stress, Aysen Koç
Turkish Journal of Agriculture and Forestry
No abstract provided.
Effects Of Different Priming Applications On Seed Germination And Some Agromorphological Characteristics Of Bread Wheat (Triticum Aestivum L.), Faruk Toklu, Faheem Shahzad Baloch, Tolga Karaköy, Hakan Özkan
Turkish Journal of Agriculture and Forestry
No abstract provided.
Casting Things As Actors In The Peruvian Landscapes Of Mining Conflict,
2015
CUNY Guttman Community College
Casting Things As Actors In The Peruvian Landscapes Of Mining Conflict, Kristina Baines
Publications and Research
No abstract provided.
Empowering Students To Care: An Edible Garden And Farm Education Approach,
2015
University of Denver
Empowering Students To Care: An Edible Garden And Farm Education Approach, Shannon C. Mcqueen
Electronic Theses and Dissertations
Through this qualitative study, I want to add to the theoretical conversation about garden and farm education in schools and offer a starting point for a conversation surrounding care and gardening/farming in schools. The purpose of this study is to understand how teachers and students demonstrate care while implementing a garden and farm curriculum. Data collection included 15 participant interviews from students, staff, administrators, and school officials from a large public school district implementing garden and farm education lessons and observations of educators, farmers, and farm interns interacting with and instructing students in a weeklong Farm Camp environment. I utilized …
Operations And Profitability Of Snail Dredging In Laguna, Rizal And Pasig City,
2015
University of the Philippines Los Baños
Operations And Profitability Of Snail Dredging In Laguna, Rizal And Pasig City, Eden Piadozo, Mj Malabayabas, Dominic Hamada, Roberto F. Ranola Jr.
Journal of Economics, Management and Agricultural Development
The objective of this study is to provide a better understanding of the snail dredging industry and its current situation. Specifically, it describes the snail dredging activities done in selected areas in Laguna Lake, determines the profitability of snail dredging, and identifies the market destinations of the snails dredged. Snail dredging has been banned because of its adverse effects on the lake environment. However, the study finds that snail dredgers continue to operate all year round. On a daily basis, dredging operations range from 4 to 10 hours. Snails dredged from Laguna Lake are brought to the provinces of Pampanga …
Decoy Effect And Student Preference With Regard To Usb Flash Drives,
2015
University of the Philippines Los Baños (UPLB)
Decoy Effect And Student Preference With Regard To Usb Flash Drives, Jeff Arapoc
Journal of Economics, Management and Agricultural Development
Standard economic theory assumes that individuals make decisions that are consistent across different choice situations. Behavioral economics challenges the standard economic theory account of individual behavior. This budding field suggests that consumer preference for one option over another changes as a result of adding another option. This study aims to determine the effect of a decoy option on consumer preference for USB flash drives. A quasi-experiment was conducted among 100 UPLB students wherein each respondent was initially asked to choose between two kinds of flash drive. The researcher then adds a decoy option to test if the respondent will change …
Farmers’ Willingness To Pay For An Alternative Irrigation Policy To Reduce Greenhouse Gas Emissions From Rice Farming In The Upper Pampanga River Integrated Irrigation System,
2015
Philippine Council for Agriculture, Aquatic and Natural Resources Research and Development
Farmers’ Willingness To Pay For An Alternative Irrigation Policy To Reduce Greenhouse Gas Emissions From Rice Farming In The Upper Pampanga River Integrated Irrigation System, Fezoil Luz C. Decena, Impa Buayon
Journal of Economics, Management and Agricultural Development
The practice of continuous flooding of rice fields in the national irrigation systems has attendant issues, including the inefficient use of water, unequal distribution of water along the irrigation canals, and greenhouse gas emissions. An ex-ante analysis was conducted to evaluate alternative policy options in the Upper Pampanga River Integrated Irrigation Systems, using both market and non-market approaches. The market approach estimated the greenhouse gas avoided and water savings due to the shift in policy. The non-market approach used choice experiment to estimate willingness to pay of farmers to shift the current to an alternative policy. The study concludes that …
Price Cointegration And Leadership In Regional Tilapia And Roundscad Markets In The Philippines,1990-2007,
2015
University of the Philippines Los Banos
Price Cointegration And Leadership In Regional Tilapia And Roundscad Markets In The Philippines,1990-2007, Yolanda T. Garcia
Journal of Economics, Management and Agricultural Development
This study aims to investigate the price dynamics between the wholesale and retail prices of roundscad and tilapia in the regional markets of the Philippines. It also seeks to analyze how the observed dynamics in these prices could be linked to the development in market-related infrastructures that can promote trade, e.g., telecommunication and transportation facilities. Results of the study reveal that there is a general decrease in the number of regions that show cointegrated wholesale and retail prices over time in both fish species. Moreover, price leadership under the “Granger-causality” sense (of either wholesale or retail price) seems to diminish …
Building Disaster Resilience To Address Household Food Security: The Case Of Sta. Rosa-Silang Subwatershed,
2015
University of the Philippines Los Banos
Building Disaster Resilience To Address Household Food Security: The Case Of Sta. Rosa-Silang Subwatershed, Roberto F. Ranola Jr., Mi Cuesta, Bam Zaraf
Journal of Economics, Management and Agricultural Development
The Laguna Lake Region is one of the places in the Philippines that are most vulnerable to natural disasters because of their location and ecological condition. Among the natural calamities that regularly hit the country, one of the most frequent and disastrous is flooding. The most affected are the poor who are faced with the double risk of being food insecure and living in conditions that are very vulnerable to natural hazards. The most negative and long-term effect of flooding is reduction in food security because flooding erodes the asset base of households that in turn results in the adoption …
Socio-Economic And Environmental Assessment Of A Microcontroller-Based Coffee Roasting Machine: Implications For Market Potential And Technology Commercialization,
2015
University of the Philippines Los Baños (UPLB)
Socio-Economic And Environmental Assessment Of A Microcontroller-Based Coffee Roasting Machine: Implications For Market Potential And Technology Commercialization, Ruel M. Mojica, Marilyn M. Elauria
Journal of Economics, Management and Agricultural Development
The study assesses the socio-economic and environmental performance leading to the commercialization of the micro-controller-based coffee roasting machine for smallscale roasting operations. Key informant interview and coffee farmers’ survey were conducted to assess the farmer- respondents’ perceptions of coffee roasting machines and availability of resources. Results show that the designed coffee roaster almost fits the farmers’ criteria in selecting coffee roasting machine. Coffee farmers perceived the machine to be a very good technology as evidenced by its highly acceptable rating. Investment analysis reveals that using the roaster for custom work would be a profitable business with an IRR of 76% …
