Agriculture Commons^™

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 …

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 …

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 …

Addressing Off-Site Nutrient Pollution Through Conventional Management Actions: A Modelling Case Study, David Weaver, Simon Neville, David Deeley

Conference papers and presentations

The ecology of estuaries on the south coast of Western Australia has been disrupted by increased nutrient and sediment discharge from predominantly rural catchments. Seagrass beds have been replaced by macroalgae, and toxic algal blooms threaten human and animal health, and reduce amenity. A range of conventional management actions are available to reduce nutrient loss at source, and it is important to evaluate possible reductions, and costs, so that limited funds can be targeted to realise the greatest moderation of nutrient loss. A lumped landuse nutrient generation rate model was developed for four catchments (Wilson Inlet, Oyster Harbour, Torbay Inlet …

Managing Blackleg : A Grower's Guide To Minimising Risk From Blackleg Disease Of Canola In Western Australia, Department Of Agriculture And Food, Western Australia

Bulletins 4000 -

Blackleg is spread primarily by wind, with the heaviest spore fall out normally occurring within 500 metres of any canola residue. Each year canola residue continues to produce blackleg spores at a diminishing rate until the stubble has completely broken down (see Diagram 2). In WA this breakdown could take up to 4 years, and so the recommendations are for long rotations.

The blackleg fungus can attack all the aerial parts of the plant. While leaf infection is the most obvious symptom, high levels of leaf infections do not necessarily indicate that major losses will occur from blackleg. It is …

Selection Of Chickpea (Cicer Arietinum L.) Genotypes For Resistance To Ascochyta Blight [Ascochyta Rabiei (Pass.) Labr.], Yield And Yield Criteria, Cengi̇z Toker, Hüseyi̇n Çanci

Turkish Journal of Agriculture and Forestry

Ascochyta blight, caused by Ascochyta rabiei (Pass.) Lab., is the most important disease in the chickpea (Cicer arietinum L.) in many countries, including Turkey. Efforts to control the disease were made using host-plant resistance as the most efficient and economical way. A total of 41 exotic genotypes were evaluated for resistance to A. rabiei and also yield and yield criteria near Antalya in the west Mediterranean region of Turkey in the 2000-2001 and 2001-2002 seasons. After every 2 test lines, the susceptible check ILC 263 was sown. When the susceptible check was completely killed by ascochyta blight, blight severity was …

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 …

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 …

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 …

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”.

Table & Seed Potatoes From Western Australia At A Glance, Dr I Mcpharlin, Peter Dawson, Rachel Lancaster

Bulletins 4000 -

Western Australia is a leading national exporter of table potatoes, accounting for almost 40 per cent of Australian exports. The high quality of Western Australian potatoes commands premium prices on both national and international markets. Opportunities to export Certified potato seed, particularly to south east Asian markets are growing and varieties suited to export markets are being developed.

The Characteristics Of Consumers And Producers Using Farmers’ Markets, Walter Hugo Anez, Michael R. Thomsen

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

This study examines the perceptions of both consumers and producers towards farmers’ markets. Consumer perceptions are generalized from several previous studies conducted throughout the United States. Producer information was gathered through a survey of members of one farmers’ market in Arkansas. Previous studies, conducted in both rural and urban areas, indicate that the typical famers’ market customer is well educated and is of higher than average income. These consumers place great importance on quality of produce, knowledge that produce is grown locally, and the social interaction obtained through the farmers’ market experience. For producers, the farmers’ market is an important …

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 …

2003 Weed Science Research Report – Blue Section, Ndsu Weed Science, Dept. Of Plant Sciences

Plant Sciences Weed Science Reports

The Weed Science team at North Dakota State University conduct field research in the State of North Dakota. This specific document reports on field research conducted in 2003. It includes work on the crops corn, soybean and the management of several weeds in North Dakota.

2003 Weed Science Research Report – Green Section, Ndsu Weed Science, Dept. Of Plant Sciences

Plant Sciences Weed Science Reports

The Weed Science team at North Dakota State University conduct field research in the State of North Dakota. This specific document reports on field research conducted in 2003 It includes work on wheat and the management of several weeds in North Dakota.

2003 Weed Science Research Report - Pink Section, Ndsu Weed Science, Dept. Of Plant Sciences

Plant Sciences Weed Science Reports

The Weed Science team at North Dakota State University conduct field research in the State of North Dakota. This specific document reports on field research conducted in 2003. It includes work on Canada thistle, leafy spurge and Russian knapweed in North Dakota.

2003 Weed Science Research Reprot - Yellow Section, Ndsu Weed Science, Dept. Of Plant Sciences

Plant Sciences Weed Science Reports

The Weed Science team at North Dakota State University conduct field research in the State of North Dakota. This specific document reports on field research conducted in 2003. It includes work on beans, canola, chickpea, flax potato, and the management of several weeds in North Dakota.

Wagonhammer Education Center Groundbreaking, John Owens

John Owens: Speeches and Appearances

Last year when I had the opportunity to speak at the 2002 Gudmundsen Sandhills Laboratory Open House I noted the tremendous gift Pete and Abbie Gudmundsen gave the university, the people who live throughout their beloved Sandhills, and, indeed, the entire state of Nebraska when they donated their almost 13,000 acre ranch, the Rafter C, to the University of Nebraska Foundation back in 1978.

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.

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 …

Cattle Industry Biosecurity Plan, Department Of Agriculture Western Australia

Biosecurity published reports

StockGuard has been initiated to develop a series of biosecurity plans for the animal industries in Western Australia. Through StockGuard, representatives from the animal industries have been working with the Department of Agriculture Western Australian to identify potential threats to each of the animal industries and to develop action plans detailing how these threats can be managed. The overall purpose of StockGuard is to highlight threats to the animal industries before they occur and to develop effective ways to minimise the potential impact of these threats.

The recommendations of the working group are based on detailed strategic assessments of the …

Talking Points For "Wake Dance" Dedication, John Owens

John Owens: Speeches and Appearances

*When the Morrill Act was passed in 1862, creating the land-grant university system which includes our own University of Nebraska, part of the language of the bill read: " ... the leading object shall be, without excluding other scientific and classical studies, and including military tactics, to teach such branches of learning as are related to agriculture and the mechanic arts, in such manner as the legislatures of the States may respectively prescribe, in order to promote the liberal and practical education of the industrial classes in the several pursuits and professions in life.

Student Scholars And Leadership Recognition Banquet, John Owens

John Owens: Speeches and Appearances

No abstract provided.

Rural Outreach, John Owens

John Owens: Speeches and Appearances

I think it comes as no surprise here when I say I am a very firm believer in the importance of engagement and outreach for Nebraska's land-grant university. We have a proud tradition of teaching, research, and engagement and outreach at the University of Nebraska. And each day we build on that tradition.

Greenhouse Gas Emissions And Soil Indicators Four Years After Manure And Compost Applications, Daniel Ginting, Anabayan Kessavalou, Bahman Eghball, John W. Doran

Department of Agronomy and Horticulture: Faculty Publications

Understanding how carbon, nitrogen, and key soil attributes affect gas emissions from soil is crucial for alleviating their undesirable residual effects that can linger for years after termination of manure and compost applications. This study was conducted to evaluate the emission of soil CO₂, N₂O, and CH₄ and soil C and N indicators four years after manure and compost application had stopped. Experimental plots were treated with annual synthetic N fertilizer (FRT), annual and biennial manure (MN1 and MN2, respectively), and compost (CP1 and CP2, respectively) from 1992 to 1995 based on removal of 151 …

Forage Yield And Economic Losses Associated With The Brown-Midrib Trait In Sudangrass, M. D. Casler, Jeffrey F. Pedersen, D. J. Undersander

Department of Agronomy and Horticulture: Faculty Publications

Brown-midrib genes increase digestibility due to reduced lignification in sudangrass, Sorghum bicolor subsp. drummondii (Nees ex Steud.) de Wet & Harlan. Brown-midrib lines are known to be low in forage yield potential, but this reduction in forage yield has not been previously quantified. The objectives of this study were to quantify the increase in forage quality and decrease in forage yield and to provide an economic assessment of this dichotomy. Piper and Greenleaf (normal leaves) were compared with their brown-midrib counterparts and four highly selected brown-midrib (FG) lines at two locations for 2 yr. Brown-midrib lines averaged 9.0% lower in …

Registration Of ‘Ne422t’ Winter Triticale, P. Stephen Baenziger, K. P. Vogel

Department of Agronomy and Horticulture: Faculty Publications

NE422T triticale (X Triticosecale Wittmack) (Reg. no CV-27, PI 629028) was developed cooperatively by the Nebraska Agricultural Experiment Station and the USDA-ARS. It was jointly released in 2001 by the developing institutions. NW422T was selected from the cross ‘Trical’/‘UB-UW26’ where Trical is most likely ‘Trical 100’ (a forage triticale developed by Resource Seed Inc., a subsidiary of Goldsmith Seed Company, Gilroy, CA) and UB-UW26 is an unknown winter triticale germplasm line given to the breeding program in the 1980s.The cross was made in 1990. The F₁ generation was grown in the greenhouse in 1990-1991. The F₂ and F …

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 …

Qtl Mapping And Analysis Of Qtl X Nitrogen Interactions For Some Yield Components In Brassica Napus L., Muhammet Kemal Gül

Turkish Journal of Agriculture and Forestry

Nitrogen (N) plays a critical role in crop production. Nowadays, it is possible to detect quantitative trait loci (QTL), as well as their effects and positions on chromosomes, by new molecular and biometrical methods. A doubled haploid rapeseed population of 142 lines from the doubled winter rapeseed cultivars Mansholt's and Samourai, and a framework map derived from an RFLP map were used for the analysis of QTL and their interactions with N in terms of some yield components obtained from field trials in Brassica napus L. The interactions between traits and N were determined by variance analysis. Two QTL for …

Effect Of Growth Season On Forage Yields Of Different Brassica Cultivars Under Ankara Conditions, Suzan Altinok, Azi̇z Karakaya

Turkish Journal of Agriculture and Forestry

This research was carried out at the experimental field of Ankara University, Faculty of Agriculture, Department of Field Crops in Turkey in 1997 and 1998. Spring and summer seedings were employed in both years. The introduced kale cultivars Vates, Siberian and Premier (Brassica oleracea L. var. acephala), forage rape cultivar Emerald (Brassica rapa L.) and Collard cultivars Vates, Champion and Georgia Southern (Brassica oleracea L.) were used as the research materials. The effect of the growth season on forage Brassica yields was evident, and generally the yields of summer-grown cultivars were higher. The highest forage yields and crude protein contents …