Download or read book Agronomic Practices to Reduce Alkaloid Levels in Dark Fire cured Tobacco written by Michael Ryan Brown and published by . This book was released on 2018 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: Field experiments were conducted at two locations over two years to evaluate the effects of agronomic practices on physical and chemical properties of dark fire-cured tobacco. Locations were at the Highland Rim Research and Education Center in Springfield, TN, and at the University of Kentucky Research and Education Center in Princeton, KY. One experiment was conducted in Springfield, TN, in 2016 and experiments were conducted at both locations in 2017. These experiments evaluated two dark tobacco varieties (KT D14 LC and KT D18 LI), two nitrogen rates (84 kg N/ha applied preplant and 196 kg N/ha - 84 kg applied preplant followed by 112 kg at layby), three topping stages (early button, late bloom, and immediately prior to harvest), and two sucker control methods (dropline application with fatty alcohol solution and hand-suckered). The 2017 experiments did not evaluate the sucker control treatments. Soil amendments, pest control, and all other production practices were carried out according to university recommendations. The effects of variety and nitrogen rate on yield were inconsistent. However, similar yield and quality was observed for both varieties when averaged across all years and locations. Leaf chemistry was inconsistent between both varieties. Reduction of nitrogen reduced alkaloids, nicotine, TSNA, and NNN, while earlier topping increased alkaloids, nicotine, TSNA, and NNN. However, results could have been influenced by the amount of days after topping until harvest. While topping immediately prior to harvest significantly reduced alkaloids, nicotine, TSNA, and NNN, this practice also severely decreased yield and quality. Leaf from higher stalk positions produced higher levels of all chemical constituents, except nicotine to nornicotine conversion and NNK. Conversely, lower stalk positions resulted in higher levels of nicotine to nornicotine conversion and NNK. Based on the results of this study, reduced nitrogen and later toppings decreased the amount of certain chemical constituents in the cured leaf.

Download or read book The Tobacco Plant Genome written by Nikolai V. Ivanov and published by Springer Nature. This book was released on 2020-03-16 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the history of tobacco genomics, from its “discovery” by Europeans to next-generation omics approaches in plant science. The authors primarily focus on the allotetraploid common tobacco plant (N. tabacum); however, separate chapters are dedicated to closely related Nicotiana species, such as N. benthamiana and N. attenuata, for which substantial progress in omics data analysis has been already achieved. While genetic maps, transcriptomes, and physical maps of BAC libraries have significantly enhanced our understanding of the tobacco plant, the genome of tobacco and related Nicotiana species has opened a new era in modern tobacco research. This book addresses current and future industrial and research applications as well as central challenges in tobacco science, including diseases, low variability of cultivars, the genome’s large size, polyploidy, and gene duplication.

Download or read book Report written by Kentucky Agricultural Experiment Station and published by . This book was released on 1978 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Directory On going Research in Smoking and Health written by and published by . This book was released on with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Smokeless Tobacco and Some Tobacco specific N nitrosamines written by IARC Working Group on the Evaluation of Carcinogenic Risks to Humans and published by World Health Organization. This book was released on 2007 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt: This eighty-ninth volume of the IARC Monographs is the third and last of a series on tobacco-related agents. Volume 83 reported on the carcinogenicity of tobacco smoke and involuntary smoking (second-hand smoke or environmental tobacco smoke) (IARC 2004a). Volume 85 summarized the evidence on the carcinogenic risk of chewing betel quid with and without tobacco (IARC 2004b). That volume explored the variety of products chewed in South Asia and other parts of the word that contain areca nut in combination with other ingredients, often including tobacco. In this eighty-ninth volume, the carcinogenic risks associated with the use of smokeless tobacco, including chewing tobacco and snuff, are considered in a first monograph. The second monograph reviews some tobacco-specific nitrosamines. These agents were evaluated earlier in Volume 37 of the Monographs (IARC 1985) and information gathered since that time has been summarized and evaluated.

Download or read book Annual Report College of Agriculture Agricultural Experiment Station of the University of Kentucky written by Kentucky Agricultural Experiment Station and published by . This book was released on 1997 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issue for 1910 includes also: Report of the director of the Kentucky Agricultural Experiment Station to the Governor of Kentucky on the enforcement of the Food and drugs act for the years 1908 and 1909.

Download or read book How Tobacco Smoke Causes Disease written by United States. Public Health Service. Office of the Surgeon General and published by . This book was released on 2010 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report considers the biological and behavioral mechanisms that may underlie the pathogenicity of tobacco smoke. Many Surgeon General's reports have considered research findings on mechanisms in assessing the biological plausibility of associations observed in epidemiologic studies. Mechanisms of disease are important because they may provide plausibility, which is one of the guideline criteria for assessing evidence on causation. This report specifically reviews the evidence on the potential mechanisms by which smoking causes diseases and considers whether a mechanism is likely to be operative in the production of human disease by tobacco smoke. This evidence is relevant to understanding how smoking causes disease, to identifying those who may be particularly susceptible, and to assessing the potential risks of tobacco products.

Download or read book Directory of On going Research in Smoking and Health written by and published by . This book was released on with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Directory contains research resumes from the U.S. and other countries.

Download or read book Annual Report written by Kentucky Agricultural Experiment Station and published by . This book was released on 1978 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: First- annual reports include also its Bulletins, no. 1-

Download or read book Annual Report for the Year Ending December 31 written by Kentucky Agricultural Experiment Station and published by . This book was released on 1996 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Report written by and published by . This book was released on 1978 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Smoking and Health Bulletin written by and published by . This book was released on 1982 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Journal of the American Society of Agronomy written by American Society of Agronomy and published by . This book was released on 1939 with total page 1126 pages. Available in PDF, EPUB and Kindle. Book excerpt: An international journal of agriculture and natural resource sciences.

Download or read book Tobacco Abstracts written by and published by . This book was released on 1991 with total page 1012 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography on Smoking and Health written by and published by . This book was released on 1982 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Smoking and Health Bulletin written by and published by . This book was released on 1982 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annual cummulation issued as Bibliography on Smoking and Health, -1988.

Download or read book Managing Cover Crops Profitably 3rd Ed written by Andy Clark and published by DIANE Publishing. This book was released on 2008-07 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cover crops slow erosion, improve soil, smother weeds, enhance nutrient and moisture availability, help control many pests and bring a host of other benefits to your farm. At the same time, they can reduce costs, increase profits and even create new sources of income. You¿ll reap dividends on your cover crop investments for years, since their benefits accumulate over the long term. This book will help you find which ones are right for you. Captures farmer and other research results from the past ten years. The authors verified the info. from the 2nd ed., added new results and updated farmer profiles and research data, and added 2 chap. Includes maps and charts, detailed narratives about individual cover crop species, and chap. about aspects of cover cropping.