Broadening the Genetic Base of Upland Cotton in U.S. Cultivars - Genetic Variation for Lint Yield and Fiber Quality in Germplasm Resources PDF Download

Author: Linghe Zeng
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages :

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Book Description
Broadening the Genetic Base of Upland Cotton in U.S. Cultivars - Genetic Variation for Lint Yield and Fiber Quality in Germplasm Resources.

Author: Ibrokhim Y. Abdurakhmonov
Publisher: BoD – Books on Demand
ISBN: 9535116223
Category : Medical
Languages : en
Pages : 324

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Book Description
Preservation of plant germplasm resources is vitally important for mankind to supply food and product security in the globalization and technological advances of the 21st century. Mankind preserved a wealth of available genetic resources of many plant species worldwide. One of the such worldwide plant germplasm resources is available for cotton, a unique natural fiber producing cash crop for mankind. Worldwide cotton germplasm collections exist in Australia, Brazil, China, India, France, Pakistan, Turkey, Russia, United States of America, and Uzbekistan. The objective of World Cotton Germplasm Resources book is to present readers with updated information on existing cotton germplasm resources, highlighting detailed inventory, description, storage conditions, characterization and utilization as well as challenges and perspectives. This book should be a comprehensive encyclopedic reading source for plant research community and students to gather important information on worldwide cotton germplasm resources.

Author: Zulqurnain Khan
Publisher: CRC Press
ISBN: 1000535622
Category : Science
Languages : en
Pages : 533

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Book Description
Cotton Breeding and Biotechnology presents information on one of the most economically important crops of the world, cotton. This book contains chapters on the history of cotton; breeding approaches; technologies for increasing germination, crop growth and yield; and fiber quality issues. It emphasizes sustainable development in the cotton industry analysing the progress of breeding technologies under environmental adversity. The book explores the national and global status of cotton crop, including cotton production, possible impacts of climate change, and the vulnerability of cotton to pest infestations and disease attacks. Features Focuses on cotton breeding and biotechnology Proposes ideas, data, and strategies to mount breeding programs for enhancing cotton production Details strategies for cotton quality improvement against abiotic and biotic stresses Emphasizes the revival of cotton in Pakistan and South Asian region This book is useful to researchers, cotton breeders and growers, farmers, and the agriculture industry.

Author: Linghe Zeng
Publisher: Frontiers Media SA
ISBN: 2832501109
Category : Science
Languages : en
Pages : 297

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Author: Andrew H. Paterson
Publisher: Springer Science & Business Media
ISBN: 0387708103
Category : Science
Languages : en
Pages : 515

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Book Description
The Gossypium (cotton) genus presents novel opportunities to advance our understanding of the natural world and its organic evolution. In this book, advances of the past decade are summarized and synthesized to elucidate the current state of knowledge of the structure, function, and evolution of the Gossypium genome, and progress in the application of this knowledge to cotton improvement. This book provides the first comprehensive reference on cotton genomics.

Author: Mehboob-Ur- Rahman
Publisher: BoD – Books on Demand
ISBN: 1789230764
Category : Medical
Languages : en
Pages : 186

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Book Description
Cotton, a source of natural fiber for textile industry, has a long breeding history aiming at increasing cotton fiber yield and its quality. Newly developed cotton varieties poorly respond in low-input environments. Secondly, the impact of changing climate may threaten the cotton production in the future. To address these challenges, efforts toward the development of resilient cotton varieties have been initiated using genetic and modern genomic approaches. In this book, research updates on cotton fiber types and properties, DNA markers for selecting desirable cotton plants, and cotton fiber genomics were compiled. Also, the modern breeding trends including development of transgenic cotton and the biosafety studies and possibilities of improving cotton genome using modern genome editing tools were also compressively discussed.

Author: Brian Matthew Schwartz
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
Genetic gain studies in the past have been used to evaluate the historical improvement of different traits and give insight into what magnitudes of gain might be possible in the future. Additionally, they have been carried out to defend the role of genetics during periods of stagnant or decreasing yield trends. This study was conducted over a 2-year period (2003 and 2004) and included nine current or obsolete cotton (Gossypium hirsutum L.) cultivars grown in 5 plant densities designed to evaluate varying levels of interplant competition. Plant densities were single plant culture with plants spaced 3m x 3m, 2m x 2m, 1m x 1m, 1m x 0.3m, and two commercial populations with plants spaced 1m x 0.1m. Results were analyzed for each trait to determine whether genetic gains are interrelated with tolerance to interplant competition or strictly under genetic control. The rates of genetic gain for lint yield were highest in the 1m x 0.1m, 1m x 0.3m, and 1m x 1m treatment with slopes of 8.7, 8.2, and 7.1 kg ha−1 yr−1 respectively. The slopes were each significantly smaller in the 2m x 2m and 3m x 3m spaced populations with gains of 3.6 and 1.5 kg ha−1 yr−1 respectively, implying that for lint yield, genetic gains have been made for tolerance to interplant competition. Similarly, modern maize hybrids only out perform obsolete hybrids at higher plant densities. Genetic gain for lint yield, fiber length, fiber strength, and fiber micronaire made in the context of tolerance to interplant competition is due in large part to the excellent performance of Deltapine 491 (2002) at higher plant populations.

Author: Kendra Gregory
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
Increased US export of cotton and global competition necessitates that plant breeders continue to improve fiber properties of upland cotton, Gossypium hirsutum (L.). Cotton cultivars having whiter fibers and more mature fibers are desirable due to decreased processing costs. TAM B182-33 ELS (Extra Long Staple) germplasm line of upland cotton, and Tamcot CAMD-E, a short staple obsolete cultivar were crossed with 36 cultivars representing unique germplasm pools from China (12 cultivars), west and central Africa (7 cultivars), south Africa (10 cultivars), and the United States (7 cultivars) that represent distinct germplasm pools. Parents and F1s were grown in College Station, TX, in a Line x Tester design during the summers of 2010 and 2011. Seedcotton was harvested by hand (to avoid the presence of thrash particles in the lint that could bias the color measurements), deburred and allowed to dry in limited light. Cotton samples were ginned on a laboratory saw gin, separated into 2.00 gram subsamples, and color measurements were taken using a Konica-Minolta CR-310 reflectance colorimeter. Absolute color measurements were obtained in two color systems (tristimulus XYZ and CIE L*a*b*). At the Fiber and Biopolymer Research Institute (FBRI) in Lubbock, TX, 50.0 mg samples of the 38 parents and F1s were used to determine maturity ratio (MR), ribbon width (RbWth) and micronaire (Mic) on a Cottonscope. The fibers were cut into 2.0 mm snippets and immersed in an aqueous solution containing a surfactant and NaCl. Approximately, 20,000 snippets per entry were analyzed for MR, RbWth and Mic in the Cottonscope using polarized light. General and specific combining abilities for all the variables were calculated from the data collected. Despite the evident genetic variation from this study for the degree of fiber whiteness, the difficulties in the phenotypic screening of this trait and its importance relative to other fiber traits are problematic. At this time, it is not advisable to begin a cotton breeding program based upon degree of fiber whiteness. Genetic variation also existed for MR, RbWth and Mic among the distinct germplasm pools utilized in this study, but it is not advisable to begin a breeding program based on RbWth or Mic. However, a cotton breeding program to improve MR would be feasible, especially with fast and repeatable measurements from the Cottonscope.

Author: Ibrokhim Y. Abdurakhmonov
Publisher: BoD – Books on Demand
ISBN: 9535127365
Category : Medical
Languages : en
Pages : 312

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Book Description
Cotton is the most important natural fiber crop of our planet, which provides humanity with cloth and vegetable oil, medicinal compounds, meal and hull for livestock feed, energy sources, organic matter to enrich soil, and industrial lubricants. Therefore, cotton research to improve sustainable cotton production worldwide is the vital task of scientific community to address the increasing demands and needs for cotton products. This Cotton Research book presents readers updated information and advances in current cotton science investigations. Chapters of this book provide the latest developments on cotton research and cover topics on cotton research infrastructure, physiology and agronomy, breeding and genetics, modern biotechnology, genomics and molecular breeding, crop management, and cotton-based product and textile researches.

Author: Victor Sadras
Publisher: Academic Press
ISBN: 0128191953
Category : Technology & Engineering
Languages : en
Pages : 780

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Book Description
Crop Physiology: Case Histories of Major Crops updates the physiology of broad-acre crops with a focus on the genetic, environmental and management drivers of development, capture and efficiency in the use of radiation, water and nutrients, the formation of yield and aspects of quality. These physiological process are presented in a double context of challenges and solutions. The challenges to increase plant-based food, fodder, fiber and energy against the backdrop of population increase, climate change, dietary choices and declining public funding for research and development in agriculture are unprecedented and urgent. The proximal technological solutions to these challenges are genetic improvement and agronomy. Hence, the premise of the book is that crop physiology is most valuable when it engages meaningfully with breeding and agronomy. With contributions from 92 leading scientists from around the world, each chapter deals with a crop: maize, rice, wheat, barley, sorghum and oat; quinoa; soybean, field pea, chickpea, peanut, common bean, lentil, lupin and faba bean; sunflower and canola; potato, cassava, sugar beet and sugarcane; and cotton. A crop-based approach to crop physiology in a G x E x M context Captures the perspectives of global experts on 22 crops