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2003

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Articles 331 - 353 of 353

Full-Text Articles in Agriculture

Comparative Genetics Of Crop Plant Domestication And Evolution, Anne Frary, Sami̇ Doğanlar Jan 2003

Comparative Genetics Of Crop Plant Domestication And Evolution, Anne Frary, Sami̇ Doğanlar

Turkish Journal of Agriculture and Forestry

Domesticated species differ from their wild ancestors and relatives for a set of traits that is known as the domestication syndrome. The most important syndrome traits include growth habit, flowering time, seed dispersal, gigantism and morphological diversity. This paper reviews what is known about the genetic control of domestication traits with an emphasis on comparative analyses that examine this control in two or more crop species. Such analyses indicate that although most domestication traits are quantitatively controlled, the dramatic morphological changes that accompanied domestication may be due to relatively few genes. These studies also show that domestication genes have been …

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Analysis Of The Marketing Structure Of The Dairy Industry In The Trakya Region And The Determination Of Emerging Issues With Multidimensional Scaling, M. Ömer Azabağaoğlu, Okan Gaytanci̇oğlu, Ahmet Kubaş, Recep Erbay Jan 2003

Analysis Of The Marketing Structure Of The Dairy Industry In The Trakya Region And The Determination Of Emerging Issues With Multidimensional Scaling, M. Ömer Azabağaoğlu, Okan Gaytanci̇oğlu, Ahmet Kubaş, Recep Erbay

Turkish Journal of Agriculture and Forestry

The purpose of this paper is to examine the marketing structure of milk processors, factors influencing production and problems faced by firms following recent economic conditions in the Trakya region. Dairy cattle production is more developed in the research area than in other regions. In addition, the region has played an important role with its high milk processing capacity. The research results indicate that the dairy industry has important problems, such as an insufficient and low quality milk supply, and poor hygiene and marketing. In particular, a large number of small-and medium-sized milk processors face extensive hygiene and marketing problems. …

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Effect Of Thermal Screens On The Microclimate And Overall Heat Loss Coefficient In Plastic Tunnel Greenhouses, H. Hüseyi̇n Öztürk, Ali̇ Başçeti̇nçeli̇k Jan 2003

Effect Of Thermal Screens On The Microclimate And Overall Heat Loss Coefficient In Plastic Tunnel Greenhouses, H. Hüseyi̇n Öztürk, Ali̇ Başçeti̇nçeli̇k

Turkish Journal of Agriculture and Forestry

The objective of the present study was to evaluate the effects of thermal screens made of clear polyethylene (PE) and polyester material on the microclimate and overall heat loss coefficient in plastic tunnel greenhouses. The dimensions of the plastic tunnels were: width 6 m, length 20 m and height 3 m. Three different installations were used: (1) a single cover without a screen (as a control); (2) a single cover with a PE screen; and (3) a single cover with a polyester screen. The thermal screens made of PE with UV+IR additives and polyester materials were placed at a height …

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Effects Of Seed Rates On Forage Production, Seed Yield And Hay Quality Of Annual Legume-Barley Mixtures, Yaşar Karadağ, Uğur Büyükburç Jan 2003

Effects Of Seed Rates On Forage Production, Seed Yield And Hay Quality Of Annual Legume-Barley Mixtures, Yaşar Karadağ, Uğur Büyükburç

Turkish Journal of Agriculture and Forestry

The forage yield and quality of common vetch, grasspea and barley grown alone and as mixtures were investigated in field experiments conducted at the Faculty of Agriculture, Gaziosmanpaşa University, in 2001 and 2002. The highest green forage (39.65 t ha^{-1}) and dry matter yields (10.71 t ha^{-1}) were obtained from the mixture including 25% common vetch and 75% barley, while the highest total seed yield (2.95 t ha^{-1}) was obtained from the mixture including 25% grasspea and 75% barley. In addition, the highest crude protein yield (1.53 t ha^{-1}) was achieved with the 50% grasspea and 50% barley mixture. The …

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Effects Of Seedling And Gf-31 Rootstocks On Yield And Fruit Quality Of Some Table Apricot Cultivars Grown In Mersin, Levent Son, Ali̇ Küden Jan 2003

Effects Of Seedling And Gf-31 Rootstocks On Yield And Fruit Quality Of Some Table Apricot Cultivars Grown In Mersin, Levent Son, Ali̇ Küden

Turkish Journal of Agriculture and Forestry

This experiment was conducted in Mut-Mersin between 1997 and 2001 to determine the effects of seedling and GF-31 rootstocks on the yield and quality of fruits of Tokaloğlu, Precoce De Tyrinthe, Joubert Foulon, Canino, Sakıt 6, Beliana, Priana and Early Kishnevski table apricot cultivars. Fruit yields were highest on apricot seedling rootstocks for all cultivars. Yields (kg tree^{-1}) ranged between 14.66 kg (Tokaloğlu) and 63.06 kg (Priana) on apricot seedling rootstocks and between 13.6 kg (Sakıt 6) and 41.13 kg (Priana) on Myrobalan GF-31 rootstock in 2001. Of the cultivars tested, Priana gave the highest yield (kg tree^{-1}), except in …

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Assessment Of Irrigation Schemes With Comparative Indicators In The Southeastern Anatolia Project, Hasan Deği̇rmenci̇, Hakan Büyükcangaz, Hayretti̇n Kuşcu Jan 2003

Assessment Of Irrigation Schemes With Comparative Indicators In The Southeastern Anatolia Project, Hasan Deği̇rmenci̇, Hakan Büyükcangaz, Hayretti̇n Kuşcu

Turkish Journal of Agriculture and Forestry

In this study, 6 comparative indicators for the assessment of irrigation system performance were applied to 12 irrigation schemes, which were components of the Southeastern Anatolian Project, for the period 1997-2001. The output per unit cropped area, output per unit command, output per unit irrigation supply, output per unit water consumed, relative water supply and irrigation ratio were calculated as 1223-9436 $ ha^{-1}, 308-5771 $ ha^{-1}, 0.12-2.16 $ m^{-3}, 0.45-2.92 $ m^{-3}, 1.00-5.90, and 7-100%, respectively. ANOVA test results indicated that among the schemes the differences in the output per unit cropped area, output per unit irrigation supply, output per …

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An Econometric Analysis Of Apricot Supply And Export Demand In Turkey, İlkay Dellal, A. Ali̇ Koç Jan 2003

An Econometric Analysis Of Apricot Supply And Export Demand In Turkey, İlkay Dellal, A. Ali̇ Koç

Turkish Journal of Agriculture and Forestry

This study estimates a supply model for apricots and an export demand model for dried apricots for Turkey to provide unit-free measure coefficients for better supply and marketing management. Using parameter estimates from the models and sample average data, elasticities of long-run supply, price-yield and export of dried apricots were computed as 0.72, 0.54 and -0.87 respectively. From the price dependent export demand model, the price flexibility of dried apricots was calculated as -0.71. In this study, the import demand elasticities of dried apricots for major destination countries were estimated and found to be inelastic. An evaluation of aggregated household …

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Nitrogen Fertiliser Recovery And Yield Response Of Greenhouse Grown And Fertigated Tomato To Root - Zone Soil Water Tension, Cevat Kirda, Nafi̇ Baytorun, M. Rifat Deri̇ci̇, H. Yildiz Daşgan, Çağatay Tanriverdi̇, Zekai̇ Gümüş Jan 2003

Nitrogen Fertiliser Recovery And Yield Response Of Greenhouse Grown And Fertigated Tomato To Root - Zone Soil Water Tension, Cevat Kirda, Nafi̇ Baytorun, M. Rifat Deri̇ci̇, H. Yildiz Daşgan, Çağatay Tanriverdi̇, Zekai̇ Gümüş

Turkish Journal of Agriculture and Forestry

Tomatoes were grown in a plastic greenhouse under 2 irrigation programmes and four N-fertiliser concentrations (0, 100, 150 and 200 mg N l^{-1}) of irrigation water. P and K concentrations were kept constant at 30 and 200 mg l^{-1}, respectively, for all N treatments. A drip irrigation system with single laterals centred between the plant rows, spaced 50 cm apart was used for irrigation as well as for feeding fertiliser solution (i.e. fertigation) during the experiment. Tensiometers, installed in 3 replicates at 45 cm soil depth and centred mid-way between 2 plants in rows, were used for irrigation scheduling. Two …

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Effects Of Boron Fertilization On The Yield And Some Yield Components Of Bread And Durum Wheat, Aydin Güneş, Mehmet Alpaslan, Ali̇ İnal, M. Sai̇t Adak, Fi̇gen Eraslan, Nuray Çi̇çek Jan 2003

Effects Of Boron Fertilization On The Yield And Some Yield Components Of Bread And Durum Wheat, Aydin Güneş, Mehmet Alpaslan, Ali̇ İnal, M. Sai̇t Adak, Fi̇gen Eraslan, Nuray Çi̇çek

Turkish Journal of Agriculture and Forestry

A greenhouse and a 1-year field study were conducted during the cropping season on the effects of B on yield and some yield components of bread (Triticum aestivum L, cv. Bezostaja) and durum (Triticum durum L. cv. Kiziltan) wheat cultivars in a B-deficient soil (0.68 mg kg^{-1}, NH4OAc extractable). Boron was applied as H_3BO_3 at 0, 0.5, 1.0, 1.5, 2.0 and 2.5 mg B kg^{-1} in the greenhouse study and 0, 1.0, 2.0, 3.0, 4.0 and 5.0 kg B ha^{-1} in the field study. Shoot dry weights of Bezostaja and Kiziltan significantly increased regardless of the applied B levels in …

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Dogwood 1997-2003, Mandarin Garden Club Jan 2003

Dogwood 1997-2003, Mandarin Garden Club

Mandarin Garden Club Scrapbooks

Scrapbook includes images, club news and news clippings. Cover material: Cardboard. Size: 11.5” x 10” x 2.5”.

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Single-Nucleotide Polymorphisms In Soybean, Y. L. Zhu, Q. J. Song, D. L. Hyten, C. P. Van Tassel, L. K. Matukumalli, D. R. Grimm, S. M. Hyatt, E. W. Fickus, N. D. Young, P. B. Cregan Jan 2003

Single-Nucleotide Polymorphisms In Soybean, Y. L. Zhu, Q. J. Song, D. L. Hyten, C. P. Van Tassel, L. K. Matukumalli, D. R. Grimm, S. M. Hyatt, E. W. Fickus, N. D. Young, P. B. Cregan

Department of Agronomy and Horticulture: Faculty Publications

Single-nucleotide polymorphisms (SNPs) provide an abundant source of DNA polymorphisms in a number of eukaryotic species. Information on the frequency, nature, and distribution of SNPs in plant genomes is limited. Thus, our objectives were (1) to determine SNP frequency in coding and noncoding soybean (Glycine max L. Merr.) DNA sequence amplified from genomic DNA using PCR primers designed to complete genes, cDNAs, and random genomic sequence; (2) to characterize haplotype variation in these sequences; and (3) to provide initial estimates of linkage disequilibrium (LD) in soybean. Approximately 28.7 kbp of coding sequence, 37.9 kbp of noncoding perigenic DNA, and …

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Grasshoppers And Mormon Crickets: Fighting Them For Nearly 100 Years, Usu Extension Jan 2003

Grasshoppers And Mormon Crickets: Fighting Them For Nearly 100 Years, Usu Extension

All Current Publications

Grasshoppers are a threat to crops and rangeland across the West, but Utah always has had a special historical relationship with Mormon Crickets. Anabrus simplex has been known as a Mormon Cricket since 1848 when hordes of the insect started eating the early Mormon settlers’ much-needed crops.

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Costs Of Feeding Guinea Pigs In Two Meat-Producing Populations In The Field And Experimental Station, Sara Taborga Galindo Jan 2003

Costs Of Feeding Guinea Pigs In Two Meat-Producing Populations In The Field And Experimental Station, Sara Taborga Galindo

Theses and Dissertations

The cost of feeding has been pointed out as the most trascendet investment inside a guinea-pig production. The present work carries out with the purpose to determine and to quantify feeding costs, total costs of production and profitability of Tamborada and MEJOCUY guinea-pig populations. In the stage of suckling period, breed and gestation, experimental station and field. The result of feeding cost was 0.05 and 0.03 $US in suckling period (14 days) for Tamborada and MEJOCUY population, in breeding (42 days) it was 0.14 $US in both populations and in gestation (67 days), it was 0.42 and 0.40 $US. In …

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Evaluation Of Quinoa (Chenopodium Quinoa Willd) At Different Spacings Between Furrows And Plants In The Mamani Community, José Ferrufino Miranda Jan 2003

Evaluation Of Quinoa (Chenopodium Quinoa Willd) At Different Spacings Between Furrows And Plants In The Mamani Community, José Ferrufino Miranda

Theses and Dissertations

This study addressed spacing between furrows and plants in the cultivation of the quinoa variety Patacamaya. This study took place from 1999 to 2000 in the Mamani community, Ingavi, La Paz, Bolivia. The Patacamaya variety is a cross between Samaranti (sweet) and Kaslala (bitter), with a vegetative cycle of 145 days (semi-early). It has large grains, is sweet, and has a high grain yield. The spaces between furrows were 40, 60, and 80 cm in an experimental design of randomly divided plots with four repetitions. The spaces between furrows were implemented in large plots and the plant spaces as sub-treatments …

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Influence Of Three Soil Types On The Physical, Chemical, And Organoleptic Characteristics Of Two Varieties Of Kidney Tomato Hydroponically Cultivated Under A Panqar Huyu System, Carlos Fernando Yepez Vallejo Jan 2003

Influence Of Three Soil Types On The Physical, Chemical, And Organoleptic Characteristics Of Two Varieties Of Kidney Tomato Hydroponically Cultivated Under A Panqar Huyu System, Carlos Fernando Yepez Vallejo

Theses and Dissertations

One of the largest problems that face communities located high in the Andres Mountain range is the lack of crop diversity due to the climate characteristics of this zone. Because of this, the Benson Institute created a small subterranean greenhouse called a "panqar-huyu," which in Aymara means "flower garden," that allows cultivation of small and medium-sized crops. This study's objective is to modify and adapt this system to cultivate table (kidney) tomatoes, for which one was enlarged, a drip irrigation system was installed, channels were dug to drain groundwater from the interior, etc. This study was done in the community …

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In Situ Degradability Of Native Pastures In Llamas (Lama Glama) In The Rainy Season In The Community Of Pujrata, Pacajes Province, Mario Acho Nina Jan 2003

In Situ Degradability Of Native Pastures In Llamas (Lama Glama) In The Rainy Season In The Community Of Pujrata, Pacajes Province, Mario Acho Nina

Theses and Dissertations

The llama (lama glama) in the Bolivian Highlands region is a most important potential resource from the socio-economic point of view for the dedicated producer to the management and exploitation of these Andean camelids, considered as national heritage of our country. The llama is completely adapted to the high plateau system, being considered a three purposed animal in this environment: producer of fiber, meat and work (load). However, due to the expansion of sheep and cattle, they have been marginalized to the poor areas, where they prosper well because they are rustic, sober and greatly efficient in the conversion of …

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An Economic Analysis Of Homeowners' Preferences And Perceptions Regarding Termite Prevention And Control In Louisiana, Doleswar Bhandari Jan 2003

An Economic Analysis Of Homeowners' Preferences And Perceptions Regarding Termite Prevention And Control In Louisiana, Doleswar Bhandari

LSU Master's Theses

This thesis used a mail survey to collect data on homeowners' preferences and perceptions regarding termite prevention and control in four metropolitan areas of Louisiana (Monroe, Alexandria, Baton Rouge, and New Orleans). Respondents were asked to rank four different alternatives differing in cost, treatment choice, and number of inspections on termite control options. These ordered preference data were then analyzed using a contingent ranking method to determine the homeowner's choice for termite control. It was found that more than three-fourths (77%) of homeowners preferred to control termites and were willing to pay for it. In addition to contingent ranking, willingness …

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Analyzing Changes In Contractual Practices In The Louisiana Nursery Industry, Roberto E. Navajas Jan 2003

Analyzing Changes In Contractual Practices In The Louisiana Nursery Industry, Roberto E. Navajas

LSU Master's Theses

The flow of nursery products through the different market channels has changed over the past decade. As mass-merchandisers’ market share increased, buyers of nursery product imposed conditions on nursery growers in terms of their business practices as well as the presentation of the product itself. This study analyzed changes in contractual terms between buyer and sellers for two market channels; mass-merchandisers and garden centers. The items evaluated were that product information tags be applied, barcode stickers be applied, special containers be used, transportation to retailer be paid by the seller, returnable shipping equipment be supplied by the grower, on-time delivery …

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Establishing The Economic Impact Of The Green Industry On Louisiana's Economy, Raul A. Pinel Jan 2003

Establishing The Economic Impact Of The Green Industry On Louisiana's Economy, Raul A. Pinel

LSU Master's Theses

The general objective of this study was to provide updated estimates of value of the green industry in Louisiana. Data collection was conducted for the production sector (Nursery Growers and Sod Producers, and Landscape Design, Installation and Maintenance Services) and the Golf Industry. In addition, expenditures on green industry products and services incurred by other sectors were obtained. Among those sectors were churches and cemeteries, public schools (elementary and secondary), public colleges and universities, private schools (elementary, secondary and college/university), parish/city grounds, state parks, road shoulder and median maintenance, and airports. To conduct the surveys, listings from those sectors were …

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Factors Affecting Plant Location Decisions Of U.S. Broiler Executives, Pramod Sambidi Jan 2003

Factors Affecting Plant Location Decisions Of U.S. Broiler Executives, Pramod Sambidi

LSU Master's Theses

The broiler operations in the United States, which are concentrated in the southeast and south central regions are unevenly distributed within those states. The major concern for Louisiana¡¯s broiler industry is that even though its production is increasing every year it is relatively low compared to many other southeastern states. This study analyzes the relative importance of factors that affect location decision of a broiler complex. A national survey of broiler industry executives is conducted to analyze site-specific factors related to the broiler-complex location problem. Conjoint analysis is used to measure the relative importance of each attribute in the location …

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Economic Analysis Of The Best Management Practices (Bmps) In Louisiana Sugarcane Production, Ying Zhong Jan 2003

Economic Analysis Of The Best Management Practices (Bmps) In Louisiana Sugarcane Production, Ying Zhong

LSU Master's Theses

Agriculture has been identified as one of the major sources of nonpoint water pollution due to discharges running off farmland. This study assessed the current adoption of Best Management Practices (BMPs) in the Louisiana sugarcane industry and provided policy recommendations based on the empirical results. Fifteen BMPs recommended by Louisiana State University Agricultural Center were examined in three categories: Soil Erosion and Sediment Control, Nutrient Management, and Pesticide Management. Based on neoclassical economic principles of individual’s utility maximization, this study evaluated seven multivariate probit models using primary data collected from a mail survey of Louisiana’s sugarcane producers. The results indicated …

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Wild Dog Control : Facts Behind The Strategies, Peter Thomson Jan 2003

Wild Dog Control : Facts Behind The Strategies, Peter Thomson

Agriculture reports

Background information to how strategies for controlling wild dogs have been developed over the years, not just in Western Australia, but also other parts of Australia. The information is based on scientific studies, including detailed evaluations of techniques and strategies, and also considerable practical experience from doggers, operational staff and landholders. This publication focuses on sheep enterprises.

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The Effect Of Recreational Fishing On Targeted Fishes And Trophic Structure, In A Coral Reef Marine Park, Mark B. Westera Jan 2003

The Effect Of Recreational Fishing On Targeted Fishes And Trophic Structure, In A Coral Reef Marine Park, Mark B. Westera

Theses: Doctorates and Masters

Recreational line fishing is highly targeted at predatory fishes, making them vulnerable to overfishing. These same fishes play a role in trophic structure by regulating prey species. Despite increasing numbers of fishers, few studies have investigated the potential effects of recreational fishing on fish populations and subsequent trophic effects. This project investigated whether there were differences in fishes and benthos between unfished and recreationally fished areas, and whether the removal of targeted fishes influenced trophic structure. The study was conducted at the Ningaloo Marine Park, Western Australia, which had Sanctuary (no-take) and Recreation {recreationally fished) Zones. Data were collected from …

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