Agriculture Commons^™

Essential Oil Composition Of Sweet Basil Cultivars As Affected By Nitrogen And Potassium Fertilization, Renata Nurzynska-Wierdak, Bartlomiej Borowski, Katarzyna Dzida, Grazyna Zawislak, Radoslaw Kowalski

Turkish Journal of Agriculture and Forestry

This study was designed to find correlations between the rate of nitrogen and potassium and basil herb quality resulting from essential oil content and composition. An increase in the amount of nitrogen in the nutritional environment of the plants resulted in the enhanced accumulation of essential oil, as well as in a rise in linalool and germacrene D concentration. The present study also showed increased content of essential oil in the herb, as well as an increase of 1,8-cineole in the oil under the influence of the increased rate of potassium. The studied basil cultivars Kasia and Wala were characterized …

An Axr1 Suppressor Mutation In Arabidopsis That Partially Restores Auxin Signaling Also Reverses Defects In Jasmonate Response, İskender Ti̇ryaki̇, Paul E. Staswick

Turkish Journal of Agriculture and Forestry

The Arabidopsis mutant axr1 is defective in both auxin and jasmonic acid responses. A screen for axr1-24 suppressors yielded sar1-5, an allele of previously described mutants that partially correct the auxin response defects in axr1. The new allele partially suppresses defects in jasmonate response in axr1. The JA concentration required for 50% inhibition of seedling root growth was 5-10 µM for axr1-24 sar1-5. This was at least 10-fold less than that required for axr-24, but 5- to 10-fold higher than for WT. In the axr1-24 background sar1-5 also partially restored resistance to the soil fungus Pythium irregulare, a trait known …

Modification Of Water Vapor Diffusion In Poplar Wood (Populus Nigra L.) By Steaming At High Temperatures, Maedeh Sayar, Asghar Tarmian

Turkish Journal of Agriculture and Forestry

In this investigation, the effect of steaming on the water vapor diffusion coefficient of poplar wood (Populus nigra L.) was studied. Boards with dimensions of 50 × 50 × 150 (W × H × L) mm3 and average moisture content of 12% were steamed at temperatures of 120, 140, 160, and 180 ^°C for 1, 2, and 3 h. The diffusion coefficients were then measured based on Fick's law of diffusion in steady-state conditions using the cup method. Results showed that the steaming of poplar wood at all mentioned temperatures can decrease the water vapor diffusion coefficient. However, no further …

Phenolic Composition And Antioxidant Activity Of Salvia Tomentosa Miller: Effects Of Cultivation, Harvesting Year, And Storage, Cüneyt Di̇nçer, İsmai̇l Tontul, İhsan Burak Çam, Kübra Sultan Özdemi̇r, Ayhan Topuz, Hi̇lal Şahi̇n Nadeem, Saadet Tuğrul Ay, Ramazan Süleyman Göktürk

Turkish Journal of Agriculture and Forestry

Salvia tomentosa is a common medicinal plant, and it is consumed as an herbal tea in some Mediterranean countries. It has been extensively collected from its natural habitat, and careless collection has caused the recent extinction of some plants. The present study was undertaken to cultivate S. tomentosa and compare the phenolic composition and antioxidant properties of wild and cultivated plants. Total phenolics, total flavonoids, and antioxidant activity of S. tomentosa ranged between 49.27 and 66.15 mg GAE g^{-1} dry weight (dw), 36.27 and 40.83 mg catechin g^{-1} dw, and 1.77 and 2.29 mg dw mg^{-1} DPPH, respectively. Total phenolic …

Combustion Properties Of Medium-Density Fiberboards Coated By A Mixture Of Calcite And Various Fire Retardants, Abdullah İstek, Deni̇z Aydemi̇r, Hüdaverdi̇ Eroğlu

Turkish Journal of Agriculture and Forestry

In this study, we investigated the effect of fire retardants (FRs) on the combustion performance of medium-density fiber boards (MDFs) that were coated with mixtures of water, binder, calcite, and various FRs (FR coatings). We used MDF panels, calcite as the coating pigment, melamine formaldehyde as the binder, and FRs, including borax (BX), boric acid (BA), and zinc borate (ZB), to investigate the effects on the properties of the test boards. According to the results of combustion properties of coated MDFs with FR coatings, BA presented the highest stability, followed by BX and ZB, respectively. It was also found that …

Arbuscular Mycorrhizal Fungi Associated With Tree Peony In 3 Geographic Locations In China, Zhaoyong Shi, Yinglong Chen, Xiaogai Hou, Shuangcheng Gao, Fayuan Wang

Turkish Journal of Agriculture and Forestry

The diversity of arbuscular mycorrhizal fungi (AMF) is of great interest because of their potential function in ecosystems. Tree peony is an important traditional ornamental and medicinal plant with economic significance. We examined the mycorrhizal status of the rhizosphere of 14 common cultivars of tree peony (Paeonia suffruticosa) in 3 different geographic locations in China. Root samples of all cultivars were colonized by AMF. The mean percentage of root length colonization, vesicles, and arbuscules were 39%, 3.6%, and 6.0%, respectively. AMF species richness varied from 5 to 11, and spore density ranged from 20 to 61 per 50 g of …

In Vitro Rooting And Biochemical Parameters In The Cherry Rootstocks Cab-6p And Gisela 6 Using L-Methionine, Virginia Sarropoulou, Kortessa Dimassi-Theriou, Ioannis Therios

Turkish Journal of Agriculture and Forestry

In the present study, the effects of indole-3-butyric acid (IBA) alone and in combination with L-methionine were investigated on the morphogenic and biochemical responses in the shoot tip explants of the cherry rootstocks CAB-6P (Prunus cerasus L.) and Gisela 6 (Prunus cerasus × Prunus canescens). The best results for roots, regarding their number and the fresh and dry weight, were obtained with 2 mg L^{-1} IBA in both rootstocks. Maximum rooting percentage was with the combination of 2 mg L^{-1} IBA and 0.5 mg L^{-1} L-methionine. Root length was greatest in the control plants. L-methionine had an inhibitory effect on …

Survey Of Apple Mosaic Virus In Apple-Growing Provinces Of East Anatolia (Malatya And Van) By Rna Probe Hybridization Assay And Rt-Pcr, Gülüstan Korkmaz, Hi̇kmet Murat Si̇pahi̇oğlu, Mustafa Usta

Turkish Journal of Agriculture and Forestry

Two main apple growing provinces (Van and Malatya) of East Anatolia were surveyed for the presence of the Apple mosaic virus (ApMV). Dot-blot hybridization and RT-PCR tests were implemented to investigate the incidence of ApMV, testing a total of 481 samples collected from commercial apple orchards. Digoxigenin-labeled RNA probes of the ApMV were synthesized from the cloned PCR products and applied in dot-blot hybridization to detect the virus in RNA extracts isolated from fresh leaf tissues. A validated RNA probe (dot-blot) hybridization method was adopted to investigate the presence of ApMV infections in the apple orchards of East Anatolia. In …

Physicochemical And Sensory Properties Of Mulberry Products: Gümüşhane Pestil And Köme, Oktay Yildiz

Turkish Journal of Agriculture and Forestry

'Pestil' and 'köme', well known as traditional Turkish foods, are prepared from a mulberry, honey, walnut, hazelnut, and flour mixture. Although they have been produced for the last few decades on an industrial scale, the production methods and properties of the products are not standardized yet. Gümüşhane pestil and köme have been registered and attained Geographical Registration Certificates from the Turkish Patent Institute with their unique production methods and properties, among many similar products in the world markets. Thus, some biochemical, physical, and sensory properties of pestil and köme were investigated. In addition, the main raw material (mulberry) and semifinished …

Sustainable Approach To Produce Bioethanol From Karanja (Pongamia Pinnata) Oilseed Residue, Pooja Doshi, Gopal Srivastava

Turkish Journal of Agriculture and Forestry

Agricultural biomass is the world's largest, most sustainable, and most promising renewable energy source. This study investigated the potential of Karanja (Pongamia pinnata) oilseed residual waste (defatted kernel, hull, and their mixture) as a source of ethanol. The pretreatment of the finely ground samples was carried out using dilute sulfuric acid (0.5%) hydrolysis at a higher temperature of 121 °C and 15 psi pressure for 90 min. The pretreatment usually removes the lignin and facilitates the hydrolysis of cellulose and hemicelluloses. They were further hydrolyzed using 5% H_2SO_4 at 50 °C for 70 h. The analyses of hydrolyzed products have …

Carbon Farming In Wa, Department Of Agriculture And Food, Western Australia, Department Of Regional Development And Lands, Western Australia

Natural resources published reports

Fact sheets:

1. Applying biochar to improve soil quality and crop productivity

2. Reducing methane emissions from cattle using feed additives

3. Cattle breeding for lower greenhouse gas emissions

4. Managing genetic codes to reduce methane emissions from cattle

5. Managing pastures and stocking rate to reduce methane emissions from cattle

6. Claying as a method of increasing soil carbon content

7. Green and brown manuring as part of carbon farming

8. Permanent environmental plantings to earn carbon credits

9. Nitrous oxide emissions from agricultural soils

10. Sheep genetics in methane reduction

11. Managing sheep pastures to reduce methane production …

Environmental Kuznets Curve In Water Pollution: A Semiparametric Approach, Mahesh Pandit

LSU Doctoral Dissertations

The relationship between pollution and per capita income generally appears as an inverted U-shaped curve. This inverted U-shaped curve is known as the environmental Kuznets curve (EKC). The shape of the curve, however, is very sensitive to the data, location and pollutant considered in the analysis. Since the early 1990s, there has been an exponential growth in the number of empirical studies in this field, but many refute the inverted U-shaped nature of the curve for pollutants across different time periods and geographical regions. This has generated an increased interest in developing a more flexible functional form for model specification …

Empirical And Simulation Essays On Analyzing A Country's Export Performance : The Case Of Ghana, Aude L. Pujula

LSU Doctoral Dissertations

A large array of literature has revealed the complexity of export performance analysis. Using the case of Ghana, this dissertation, divided into three essays, seeks to provide the methodological guidance, empirical and simulation evidence necessary to analyze a country’s export performance. The choice of Ghana was motivated by the country’s growth experience, strong export and agricultural sectors and implemented reforms and programs since 1983. In the first essay, we created a new trade-weighted Cedi index or real effective exchange rate (REER) that takes into account Ghana’s most relevant patterns of trade and captures the evolution of Ghana’s export price competitiveness …

The Effects Of U.S. Shrimp Imports On The Gulf Of Mexico Dockside Price : A Source Differentiated Mixed Demand Model, Maryam Tabarestani

LSU Doctoral Dissertations

The ever increasing demand for the shrimp products in the 1980s and 1990s caused the volume of shrimp imports to increase. The import of shrimp has had an upward trend, from 847 million pounds in 1997 to 1,636 million pounds in 2010.The imports price has declined since 1997. Along with the decrease in imports price, the U.S. domestic shrimp price has also declined. However, the annual production of shrimp from the Gulf of Mexico has, in the long-run, remained relatively stable. These facts indicate that there is not the same quantity-price relation between the U.S. domestic shrimp market and shrimp …

Quality Of Care: Analyzing The Relationship Between Hospital Quality Score And Total Hospital Costs, Jordan Andrew Newell

LSU Master's Theses

As healthcare costs and premiums have increased in the recent past, hospitals are forced to try to provide healthcare on tight budgets. In many cases, quality is often sacrificed in an effort to manage patient wait-times and costs. This research attempted to add to the existing body of knowledge of quality of care by defining a relationship between quality of care provided and total hospital costs. This study used the 2006 American Hospital Association’s Annual Survey Database and the 2006 Hospital Compare dataset to meet the data requirements for the study. A log-log, as well as a translog, cost function …

A Linear Programming Model And Partial Budget Analysis To Optimize Management Strategies Of Western Flower Thrips In Greenhouse Impatiens Production, Xiaohua Yue

LSU Master's Theses

The research problem of this thesis was to compare strategies and costs of protecting impatiens in greenhouse culture from western flower thrips that would provide a plant of acceptable quality to the market and would address the issue of development of resistance to commonly used pesticides by evaluating biopesticides. Partial budgets based on alternative strategies were identified. Six control strategies were identified from a combination of commercial growers, research experts and biopesticide recommendations from product distributors. The research-recommended strategy 6 had the highest total production cost ($197.44), while one of the grower strategies based on conventional pesticides had the lowest …

An Analysis Of Consumer Preferences For Grass-Fed Versus Grain-Fed Beef, Bo Lin

LSU Master's Theses

As a consequence of the growing concerns about human health and the environment, consumers are becoming more interested in grass-fed beef than conventional grain-fed beef. Therefore, the study of consumers’ preference towards grass-fed versus grain-fed beef steak is the focus of research. In this paper, 2,000 respondents who indicate they have eaten grass fed beef in the past years and 2,000 respondents that complete a nationally representative sample is the general population. Conjoint analysis is utilized to analyze the preference of consumers. Participants are presented ten hypothetical beef steaks to rate. All steaks are identical excluding their product type, source …

Consumer's Preferences For Goat Meat In The United States : An Application Of Choice-Based Conjoint Analysis, Jessica Irene Hill

LSU Doctoral Dissertations

The meat goat industry is one of the fastest growing agricultural sectors in the United States. However, there has been limited research on consumers’ preferences for goat meat; therefore, a choice experiment was used to assess consumer preferences for goat meat and/or live goats. A national online survey was conducted from April 27, 2012 to May 4, 2012. Respondents were asked to complete either the goat meat choice experiment, live goat choice experiment or both. In addition to the choice experiment, respondents answered a set of questions about goat meat consumption and purchasing behavior as well as demographics. The attributes …

Assessing The Efficiency Of Alternative Best Management Practices To Reduce Nonpoint Source Pollution In The Broiler Production Region Of Louisiana, Bryan Gottshall

LSU Master's Theses

The Louisiana broiler production region is located in North Central and Northwestern Louisiana. The region consists of twelve parishes in Northwestern and North Central Louisiana. The broiler production region is a significant contributor of nonpoint source (NPS) pollution to nearby waterways. This pollution is a consequence of sediment, nitrogen and phosphorus runoff caused by agricultural production. NPS pollution is difficult to mitigate due to uncertainties in its point of origin as well as a host of other factors ranging from rainfall to topographical parameters. Best Management Practices (BMPS) have been shown to be a reliable method for reducing nonpoint source …

Northern Utah Small Cow-Calf Pasture Finished Beef Production Costs & Returns, 2012, Kynda Curtis, Trevor Knudsen, Jennifer Macadam

All Current Publications

Sample costs and returns to raise pasture-fed beef cattle for direct to consumer sales on small cow-calf operations in northern Utah are presented in this publication.

Recycling In Utah: Paper, Rebecca Mills, Craig Pearson

All Current Publications

This factsheet is part of a series highlighting different recyclable commodities and focuses on paper recycling.

Scaling Food Security: A Political Ecology Of Agricultural Policies And Practices In Bukidnon, Philippines, Ryan Ehrhart

Dissertations, Theses, and Capstone Projects

Debates over food security strategies in the Philippines have pitted the neoliberal paradigm of trade liberalization, export cropping, and chemical and biotech agricultural methods against the food sovereignty paradigm of protectionism, staple cropping, and sustainable agriculture methods.

The Philippine government has long pushed for yield increases of staples. However, there has been dissonance between governmental desires for rice self-sufficiency and pursuit of a more export-oriented agricultural economy. The World Bank, the International Monetary Fund, the Asian Development Bank, and the World Trade Organization have pressured the government of the Philippines to adopt various tenets of neoliberalism (trade liberalization, privatization, deregulation, …