Download or read book Seed Priming and Post priming Treatment Effects on Germination Rates and Longevity written by Zhi Li and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: While seed priming (controlled hydration followed by drying) enhances seed germination rates, the longevity of primed seeds in storage is often reduced. Post-priming treatments involving a slow drying process to cause a partial reduction in seed moisture content prior to complete drying can restore longevity in several species compared to rapid drying after priming. The goal of this project is to develop solid matrix priming and post-priming protocols that improve seed germination performance without penalizing potential seed quality or longevity after storage. A solid matrix-based priming protocol (10 g of seeds incubated for 2 days with 12 mL of water and 20 g of AGSORBR® clay matrix followed by rapid drying) was developed for two tomato seed lots that advanced germination timing, although it accelerated loss of seed quality during storage. Similar experiments with pepper and onion seeds encountered some initial complications, including low seed viability and susceptibility to fungal growth, so experiments were continued only with tomato seeds. For both tomato seed lots (T1 and T2), two days of priming advanced germination timing but had the maximum adverse effect on subsequent storage life. After the priming but before drying, post-priming treatments were conducted on the two tomato seed lots by adding additional amounts of clay matrix (2, 4, or 6 g) into the priming treatment to reduce seed moisture content and incubating for two additional days before drying to 8% seed moisture content (dry weight basis). Controlled deterioration tests (47% RH and 50°C) were conducted on control seeds and seeds exposed to different priming and post-priming treatments and seed longevities were compared. In this study, ASTEQ Q2 Oxygen Sensing Technology was used to measure the oxygen consumption of individual seeds at frequent intervals during the priming and aging process in lieu of manual radicle emergence observations. The results for determination of priming conditions showed a high correlation between respiration rates and radicle emergence rates in the same conditions. Potential maximum longevity (Pmax) values were estimated from the aging-time model using respiration time course data. Generally, the results of post-priming treatments did not accord with our expectations, for the post-priming treatments did not extend tomato seed longevity to match that of the unprimed seeds. Although some post-priming treatments slightly increased P[subscript max] values for the T2 seed lot compared to the conventional priming treatment, the differences were small. For the T1 seed lot, the restoration treatments did not result in any improvement in longevity compared with the priming-only treatment. Curiously, in some cases there was not a clear decline in germination rates or viability with increasing aging time. Thus, further optimization is needed for post-priming treatments of tomato seeds to restore longevity in storage.
Download or read book Effects of Post priming Treatments on Potential Longevity of Lettuce Seeds written by Andrés R. Schwember and published by . This book was released on 2003 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Priming Mediated Stress and Cross Stress Tolerance in Crop Plants written by Mohammad Anwar Hossain and published by Academic Press. This book was released on 2020-01-22 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Priming-Mediated Stress and Cross-Stress Tolerance in Crop Plants provides the latest, in-depth understanding of the molecular mechanisms associated with the development of stress and cross-stress tolerance in plants. Plants growing under field conditions are constantly exposed, either sequentially or simultaneously, to many abiotic or biotic stress factors. As a result, many plants have developed unique strategies to respond to ever-changing environmental conditions, enabling them to monitor their surroundings and adjust their metabolic systems to maintain homeostasis. Recently, priming mediated stress and cross-stress tolerance (i.e., greater tolerance to a second, stronger stress after exposure to a different, milder primary stress) have attracted considerable interest within the scientific community as potential means of stress management and for producing stress-resistant crops to aid global food security. Priming-Mediated Stress and Cross-Stress Tolerance in Crop Plants comprehensively reviews the physiological, biochemical, and molecular basis of cross-tolerance phenomena, allowing researchers to develop strategies to enhance crop productivity under stressful conditions and to utilize natural resources more efficiently. The book is a valuable asset for plant and agricultural scientists in corporate or government environments, as well as educators and advanced students looking to promote future research into plant stress tolerance. Provides comprehensive information for developing multiple stress-tolerant crop varieties Includes in-depth physiological, biochemical, and molecular information associated with cross-tolerance Includes contribution from world-leading cross-tolerance research group Presents color images and diagrams for effective communication of key concepts
Download or read book New Challenges in Seed Biology written by Susana Araújo and published by BoD – Books on Demand. This book was released on 2016-10-12 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: New Challenges in Seed Biology - Basic and Translational Research Driving Seed Technology combines different aspects of basic and translational research in seed biology. A collection of eight chapters written by seed biology experts from the field of seed physiology, ecology, molecular biology, biochemistry, and seed technology was gathered. We hope that this book will attract the attention of researchers and technologists from academia and industry, providing points for interactive and fruitful discussion on this fascinating topic.
Download or read book Priming and Pretreatment of Seeds and Seedlings written by Mirza Hasanuzzaman and published by Springer Nature. This book was released on 2019-10-15 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces readers to both seed treatment and seedling pretreatments, taking into account various factors such as plant age, growing conditions and climate. Reflecting recent advances in seed priming and pretreatment techniques, it demonstrates how these approaches can be used to improve stress tolerance and enhance crop productivity. Covering the basic phenomena involved, mechanisms and recent innovations, the book offers a comprehensive guide for students, researchers and scientists alike, particularly Plant Physiologists, Agronomists, Environmental Scientists, Biotechnologists, and Botanists, who will find essential information on physiology and stress tolerance. The book also provides a valuable source of information for professionals at seed companies, seed technologists, food scientists, policymakers, and agricultural development officers around the world.
Download or read book Viability of Seeds written by E.H. Roberts and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: From prehistoric times man has had a pecial s relationship with seed plants - as a source of food, materials for tools, buildings, clothing and pharmaceuticals, and for ornamenting his surroundings for his own delight (probably in that chronological order which, incidentally, also gives some indication ofthe priorities oflife). Today man's most important staple foods are derived directly from seeds as they have been since neolithic times. (It is a sobering thought, as Harlan* has pointed out, that nothing significant has been added to his diet since then. ) From those times he must have learned to collect, conserve and cultivate seeds; and the accumulated experience has been handed down. This book then is part of an ancient tradition, for here we are still primarily concerned with these skills. Seeds are plant propagules comprised of embryos in which growth has been suspended, usually supplied with their own food reserves and protected by special covering layers. Typically they are relatively dry structures compared with other plant tissues and, in this condi tion) they are resistant to the ravages of time and their environment. But resistant is a relative tenn and seeds do deteriorate: the type, the extent and the rapidity of the deterioration, and the factors which control it are important to agronomists, horticulturalists, plant breeders, seedsmen, seed analysts, and those concerned with the conservation of genetic resources.
Download or read book Advances in Seed Priming written by Amitava Rakshit and published by Springer. This book was released on 2018-06-07 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most crop plants grow in environments that are suboptimal, which prevents the plants from attaining their full genetic potential for growth and reproduction. Stress due to abiotic and biotic agents has a significant effect on world food production. Annually, an estimated 15% of global yields are lost, but this figure belies far greater losses for specific food systems and the people whose existence is dependent upon them, particularly in developing countries. Current efforts to mitigate these losses are worryingly over-reliant on the use of sophisticated and costly chemicals /measures with substantial economic and environmental costs, or on the development of efficient and smart crop varieties, which can take decades. What we need is a broad range of safe, robust and equitable solutions for food producers. One under-investigated approach is that of utilizing the crop plant’s innate immune system to resist stress. More specifically, the innate immune system can be sensitized or ‘primed’ to respond more quickly and strongly to protect the plant against stresses. However, a strategy of employing priming in combination with reduced pesticide use can enhance protection, and help to meet commitments to reducing chemical inputs in agriculture. This book discusses in detail different segments of priming in addressing stress factors and traits to increase competitiveness against all odds. Adopting a holistic and systematic approach, it addresses priming to counter climate-change related adverse effects coupled with pest and pathogen related stress on the productivity of crops utilizing natural resources to reap sustainable environmental, economic and social benefits for potential productivity of crops, maintaining synergy between soil, water and plants in ways that mimic nature.
Download or read book Organic Farming Pest Control and Remediation of Soil Pollutants written by Eric Lichtfouse and published by Springer Science & Business Media. This book was released on 2009-10-15 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sustainable agriculture is a rapidly growing field aiming at producing food and energy in a sustainable way for humans and their children. Sustainable agriculture is a discipline that addresses current issues such as climate change, increasing food and fuel prices, poor-nation starvation, rich-nation obesity, water pollution, soil erosion, fertility loss, pest control, and biodiversity depletion. Novel, environmentally-friendly solutions are proposed based on integrated knowledge from sciences as diverse as agronomy, soil science, molecular biology, chemistry, toxicology, ecology, economy, and social sciences. Indeed, sustainable agriculture decipher mechanisms of processes that occur from the molecular level to the farming system to the global level at time scales ranging from seconds to centuries. For that, scientists use the system approach that involves studying components and interactions of a whole system to address scientific, economic and social issues. In that respect, sustainable agriculture is not a classical, narrow science. Instead of solving problems using the classical painkiller approach that treats only negative impacts, sustainable agriculture treats problem sources. Because most actual society issues are now intertwined, global, and fast-developing, sustainable agriculture will bring solutions to build a safer world. This book series gathers review articles that analyze current agricultural issues and knowledge, then propose alternative solutions. It will therefore help all scientists, decision-makers, professors, farmers and politicians who wish to build a safe agriculture, energy and food system for future generations.
Download or read book Seeds written by J. Derek Bewley and published by Springer Science & Business Media. This book was released on 2012-10-23 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This updated and much revised third edition of Seeds: Physiology of Development, Germination and Dormancy provides a thorough overview of seed biology and incorporates much of the progress that has been made during the past fifteen years. With an emphasis on placing information in the context of the seed, this new edition includes recent advances in the areas of molecular biology of development and germination, as well as fresh insights into dormancy, ecophysiology, desiccation tolerance, and longevity. Authored by preeminent authorities in the field, this book is an invaluable resource for researchers, teachers, and students interested in the diverse aspects of seed biology.
Download or read book Physiological and Biochemical Characterization of Seed Priming written by Patrick Thomas Smith and published by . This book was released on 1989 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biostimulants in Agriculture written by Youssef Rouphael and published by Frontiers Media SA. This book was released on 2020-03-24 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heat Shock Proteins and Plants written by Alexzander A. A. Asea and published by Springer. This book was released on 2016-11-23 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heat Shock Proteins and Plants provides the most up-to-date and concise reviews and progress on the role of heat shock proteins in plant biology, structure and function and is subdivided into chapters focused on Small Plant HSPs (Part I), Larger Plant HSPs (Part II) and HSPs for Therapeutic Gain (Part III). This book is written by eminent leaders and experts from around the world and is an important reference book and a must-read for undergraduate, postgraduate students and researchers in the fields of Agriculture, Botany, Crop Research, Plant Genetics and Biochemistry, Biotechnology, Drug Development and Pharmaceutical Sciences.
Download or read book Effect of Seed Priming Size and GA on Germination and Emergence of Carrots written by Dina Mansour and published by . This book was released on 1995 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seed priming can markedly increase the germination rate of carrot seeds, but has not always been accompanied by improvements in field emergence. The objectives of this study were to evaluate the influence of seed priming, size and GA levels on laboratory germination and emergence of high and low quality carrot varieties. Seeds of different size were primed by incubating in a solid media of Micro-Cell E, with or without addition of GA. Control and primed seeds were germinated at 20°C and planted in peatmoss under two alternating temperatures and light of 20°C/light and 10°C/dark or 15°C/light and 10°C/dark. Priming slightly reduced final laboratory germination percentages of the high quality variety. In contrast, it increased percent germination of the low quality variety. Priming also increased speed of germination index (SEI) of both varieties. Emergence percentages and SEI were generally unaffected by priming, but emergence rates were increased. There was a strong interaction between seed lots and priming response, with the low quality variety exhibiting the greatest benefit from priming. Conductivity was a good indicator of seed quality and was reduced by seed priming. Protein analysis by gel electrophoresis showed that seed priming had no effect on storage protein mobilization. The lack of significant interaction between priming and seed size indicated that the beneficial effect of priming was most pronounced for seeds of low quality with poorer seed benefiting more from priming than high quality seed. Effect of GA on emergence and germination was variable, however, its beneficial effect on fresh weight should be considered as one way of improving early plant establishment and productivity. It is concluded that priming will enhance field performance by increasing the uniformity and rapidity of emergence, and that its effects are further enhanced by other treatments, such as sizing.
Download or read book Annual Plant Reviews Seed Development Dormancy and Germination written by Kent Bradford and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: The formation, dispersal and germination of seeds are crucial stages in the life cycles of gymnosperm and angiosperm plants. The unique properties of seeds, particularly their tolerance to desiccation, their mobility, and their ability to schedule their germination to coincide with times when environmental conditions are favorable to their survival as seedlings, have no doubt contributed significantly to the success of seed-bearing plants. Humans are also dependent upon seeds, which constitute the majority of the world’s staple foods (e.g., cereals and legumes). Seeds are an excellent system for studying fundamental developmental processes in plant biology, as they develop from a single fertilized zygote into an embryo and endosperm, in association with the surrounding maternal tissues. As genetic and molecular approaches have become increasingly powerful tools for biological research, seeds have become an attractive system in which to study a wide array of metabolic processes and regulatory systems. Seed Development, Dormancy and Germination provides a comprehensive overview of seed biology from the point of view of the developmental and regulatory processes that are involved in the transition from a developing seed through dormancy and into germination and seedling growth. It examines the complexity of the environmental, physiological, molecular and genetic interactions that occur through the life cycle of seeds, along with the concepts and approaches used to analyze seed dormancy and germination behavior. It also identifies the current challenges and remaining questions for future research. The book is directed at plant developmental biologists, geneticists, plant breeders, seed biologists and graduate students.
Download or read book Stevia written by A. Douglas Kinghorn and published by CRC Press. This book was released on 2001-11-29 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stevia rebaudiana is a remarkable South American plant that has become widely used in certain parts of the world as a natural sweetening agent and dietary supplement. Purified extracts of S. rebaudiana have been used as sweeteners and flavor enhancers in the food industry in Japan for over a quarter of a century, and have been found to be up to 300
Download or read book A Protocol to Determine Seed Storage Behaviour written by T. D. Hong and published by Bioversity International. This book was released on 1996 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication provides an approach by which conservationists can determine whether or not long-term seed storage is feasible for a particular species, i.e. whether or not that species shows orthodox seed storage behaviour, and provides advice on the implementation of the protocol, examples of ways in which the results from seed storage studies could be misinterpreted due to confounding factors, as well as several alternative approaches for estimating seed storage behaviour prior to carryng out actual investigations with the seeds. In particular, the latter section introduces the concept of a multicriteria approach for estimating seed storage behaviour.
Download or read book RESEARCH ADVANCES IN VEGETABLE SCIENCE written by Humberto González Rodríguez and published by American Academic Press. This book was released on 2018-11-01 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book Research Advances in Vegetable Science is an outstanding contribution of the authors in the field of advancement of the vegetable researches all over the World. The book entitles from the seed germination and its necessity of establishment in the new environment where physiological responses are influenced by both biotic and abiotic factors. Priming is a simple technique that not only helps in proper germination but aid in seedling establishment. Phonotypical and physiological responses of different vegetable crops are of significant importance in relation to factors like nutrients, salinity, disease-pest attacks. Physiological and biochemical basis of tolerance to salinity is very important that may help in the evaluation and selection of pipeline hybrids and parents lines using a novel technique. Biotic factors are major constraints in crop production, so proper management strategies and control measures must be taken for potential outcome. In this book, a special emphasis was given on food value and food chemistry of different vegetable crops. Major aspects like nutritional value of fresh vegetable as well as food value, post-harvest physiology and processing, storage and food quality, medicinal values, food chemistry and food biotechnology have been discussed in lucid manner.
