Download or read book Effect of Prolificacy on Stalk and Root Quality in Maize written by Daniel Jeffrey Brotslaw and published by . This book was released on 1985 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of One and Two eared Selection on Stalk Strength and Other Characters in Maize written by Sansern Jampatong and published by . This book was released on 1999 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prolificacy associated with higher grain yield has been widely documented. However, one serious concern is that prolificacy appears to be closely related to poor stalk quality and plant standability. The objective of this research was to compare stalk strength and other agronomic characteristics of one- and two-eared selections in three maize populations evaluated at different nitrogen levels and plant densities. The six entries included three one- and two-eared populations. The populations were: [MoSQA(S7-H)C8 x Georgia Cow Corn](H-lEar)C8; ACC-1E (MoSQA(S7-H)C8 x Georgia Cow Corn](H-2Ear)C8; ACC-2E (MoSQB(S8-H)C8 x Georgia Cow Corn](H-lEar)C8; BCC-1E (MoSQB(S8-H)C8 x Georgia Cow Corn](H-2Ear)C8; BCC-2E SI171(H-lEar)C8; SI171-1E SI171(H-2Ear)C8; SI171-2E The six entries were grown in nine combinations of three levels of nitrogen application (90, 180, and 270 kg N ha-1) and three levels of plant density (35,800; 47, 800; and 59,800 plants ha -1). A randomized complete block design with treatments in a split-split-plot arrangement with three replications was used with nitrogen levels assigned to the main plots, plant densities to the sub-plots, and entries to the subsub-plots. The experiment was conducted in 1995 and 1996 in a total of five environments in Missouri. Stalk crushing strength showed significant differences between one- and two-eared subpopulations for ACC and BCC, but it was not significant for SI171. One-eared subpopulations had higher rind penetrometer resistance than two-eared subpopulations for all populations. Stalk lodging was significantly greater for the two-eared subpopulations than for the one-eared subpopulations for all populations. Root lodging was significantly greater for the two-eared subpopulations than for the one-eared subpopulations for ACC and BCC, but it was not significantly different for SI171. In general, two-eared selections resulted in poorer root and stalk strength. However, total yield of the two-eared subpopulations was significantly higher than that of the one-eared subpopulations for BCC and SI171. And, total yield of the two-eared ACC subpopulation was numerically higher than that of the one-eared subpopulation. Prolificacy has high potential as a novel character for yield improvement in the future. Selection for prolificacy alone, representing indirect selection for yield, would produce undesirable effects on other agronomic characteristics, especially root and stalk quality. Concurrent selection for total yield, prolificacy, and root and stalk quality should be used to extract the real benefit of the prolific character.

Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, SIld disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna and broader dissemination. tional publishing house to assure improved service Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 30 (thesis year 1985) a total of 12,400 theses titles from 26 Canadian and 186 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work.

Download or read book Agronomy Abstracts written by and published by . This book was released on 1993 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes abstracts of the annual meetings of the American Society of Agronomy; Soil Science Society of America; Crop Science Society of America ( - of its Agronomic Education Division).

Download or read book Plant Breeding Abstracts written by and published by . This book was released on 1995-08 with total page 1158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Principles of Plant Genetics and Breeding written by George Acquaah and published by John Wiley & Sons. This book was released on 2020-12-14 with total page 855 pages. Available in PDF, EPUB and Kindle. Book excerpt: The revised edition of the bestselling textbook, covering both classical and molecular plant breeding Principles of Plant Genetics and Breeding integrates theory and practice to provide an insightful examination of the fundamental principles and advanced techniques of modern plant breeding. Combining both classical and molecular tools, this comprehensive textbook describes the multidisciplinary strategies used to produce new varieties of crops and plants, particularly in response to the increasing demands to of growing populations. Illustrated chapters cover a wide range of topics, including plant reproductive systems, germplasm for breeding, molecular breeding, the common objectives of plant breeders, marketing and societal issues, and more. Now in its third edition, this essential textbook contains extensively revised content that reflects recent advances and current practices. Substantial updates have been made to its molecular genetics and breeding sections, including discussions of new breeding techniques such as zinc finger nuclease, oligonucleotide directed mutagenesis, RNA-dependent DNA methylation, reverse breeding, genome editing, and others. A new table enables efficient comparison of an expanded list of molecular markers, including Allozyme, RFLPs, RAPD, SSR, ISSR, DAMD, AFLP, SNPs and ESTs. Also, new and updated “Industry Highlights” sections provide examples of the practical application of plant breeding methods to real-world problems. This new edition: Organizes topics to reflect the stages of an actual breeding project Incorporates the most recent technologies in the field, such as CRSPR genome edition and grafting on GM stock Includes numerous illustrations and end-of-chapter self-assessment questions, key references, suggested readings, and links to relevant websites Features a companion website containing additional artwork and instructor resources Principles of Plant Genetics and Breeding offers researchers and professionals an invaluable resource and remains the ideal textbook for advanced undergraduates and graduates in plant science, particularly those studying plant breeding, biotechnology, and genetics.

Download or read book Dissertation Abstracts International written by and published by . This book was released on 2000 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nitrogen in the Environment Sources Problems and Management written by R.F. Follett and published by Gulf Professional Publishing. This book was released on 2001-12-03 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen in the Environment: Sources, Problems, and Management is the first volume to provide a holistic perspective and comprehensive treatment of nitrogen from field, to ecosystem, to treatment of urban and rural drinking water supplies, while also including a historical overview, human health impacts and policy considerations. It provides a worldwide perspective on nitrogen and agriculture. Nitrogen is one of the most critical elements required in agricultural systems for the production of crops for feed, food and fiber. The ever-increasing world population requires increasing use of nitrogen in agriculture to supply human needs for dietary protein. Worldwide demand for nitrogen will increase as a direct response to increasing population. Strategies and perspectives are considered to improve nitrogen-use efficiency. Issues of nitrogen in crop and human nutrition, and transport and transformations along the continuum from farm field to ground water, watersheds, streams, rivers, and coastal marine environments are discussed. Described are aerial transport of nitrogen from livestock and agricultural systems and the potential for deposition and impacts. The current status of nitrogen in the environment in selected terrestrial and coastal environments and crop and forest ecosystems and development of emerging technologies to minimize nitrogen impacts on the environment are addressed. The nitrogen cycle provides a framework for assessing broad scale or even global strategies to improve nitrogen use efficiency. Growing human populations are the driving force that requires increased nitrogen inputs. These increasing inputs into the food-production system directly result in increased livestock and human-excretory nitrogen contribution into the environment. The scope of this book is diverse, covering a range of topics and issues from furthering our understanding of nitrogen in the environment to policy considerations at both farm and national scales.

Download or read book Biological Agricultural Index written by and published by . This book was released on 1989 with total page 2344 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Maize In The Third World written by Christopher Dowswell and published by CRC Press. This book was released on 2019-04-01 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maize is the world's most widely grown cereal and a dietary staple throughout the Third World, but its full potential has only begun to be tapped. This book thoroughly examines the biological and economic issues relevant to improving the productivity of maize in developing countries. The authors explore a wide range of practical problems, from maxi

Download or read book Plant Nutrition written by Walter Horst and published by Springer Science & Business Media. This book was released on 2006-05-18 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is a compilation of extended abstracts of all papers presented at the 14th International Plant Nutrition Colloquium. Over 500 oral and poster presentations illustrate current knowledge and research emphasis in this subject, providing a comprehensive view of the state of plant nutrition research.

Download or read book Report written by Pennsylvania State College and published by . This book was released on 1892 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report written by Pennsylvania State University and published by . This book was released on 1892 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cereals written by Marcelo J. Carena and published by Springer Science & Business Media. This book was released on 2009-04-21 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agriculture depends on improved cultivars, and cultivars are developed through proper plant breeding. Unfortunately, applied plant breeding programs that are focused on cereal commodity crops are under serious erosion because of lack of funding. This loss of public support affects breeding continuity, objectivity, and, perhaps equally important, the training of future plant breeders and the utilization and improvement of plant genetic resources currently available. Breeding programs should focus not only on short-term research goals but also on long-term genetic improvement of germplasm. The research products of breeding programs are important not only for food security but also for commodity-oriented public and private programs, especially in the fringes of crop production. Breeding strategies used for long-term selection are often neglected but the reality is that long-term research is needed for the success of short-term products. An excellent example is that genetically broad-based public germplasm has significantly been utilized and recycled by industry, producing billions of dollars for industry and farmers before intellectual property rights were available. Successful examples of breeding continuity have served the sustainable cereal crop production that we currently have. The fact that farmers rely on public and private breeding institutions for solving long-term challenges should influence policy makers to reverse this trend of reduced funding. Joint cooperation between industry and public institutions would be a good example to follow. The objective of this volume is to increase the utilization of useful genetic resources and increase awareness of the relative value and impact of plant breeding and biotechnology. That should lead to a more sustainable crop production and ultimately food security. Applied plant breeding will continue to be the foundation to which molecular markers are applied. Focusing useful molecular techniques on the right traits will build a strong linkage between genomics and plant breeding and lead to new and better cultivars. Therefore, more than ever there is a need for better communication and cooperation among scientists in the plant breeding and biotechnology areas. We have an opportunity to greatly enhance agricultural production by applying the results of this research to meet the growing demands for food security and environmental conservation. Ensuring strong applied plant breeding programs with successful application of molecular markers will be essential in ensuring such sustainable use of plant genetic resources.

Download or read book Report written by Pennsylvania State University. Agricultural Experiment Station and published by . This book was released on 1892 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1991-04 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Maize productivity in Ghana written by Ragasa, Catherine and published by Intl Food Policy Res Inst. This book was released on 2014-09-08 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maize is an important food crop in Ghana, accounting for more than 50 percent of the country’s total cereal production. The Ghana Grains Development Project (1979–1997) and the Food Crops Development Project (2000–2008) made major investments to improve maize yield. Despite these efforts, the average maize yield in Ghana remains one of the lowest in the world, much lower than the average for Africa south of the Sahara.