Download or read book Shoot Apex Development Date of Anthesis and Grain Yield of Autumn sown Spring and Winter Barley Hordeum Vulgare L After Different Sowing Times written by Eva Knopp and published by . This book was released on 1985 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Introduction to the Physiology of Crop Yield written by Robert K. M. Hay and published by . This book was released on 1989-06-20 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reviews and analyzes recent advances in in our knowledge of the functioning of crop plants in the field. Emphasis is on north-temperate cropping (although examples are included from other regions), material being drawn from both the laboratory and the field. Also covered are crop simulation and interactions between plant disease and plant physiology, with thoughtful discussion of the complexity of crop/environment/management relationships.
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1986 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Soil Temperature Seeding Date and Straw Mulch on Plant Development and Grain Yield of Two Winter Wheat and Two Winter Barley Cultivars written by Alpaslan Pehlivantürk and published by . This book was released on 1975 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two winter wheat (Triticum aestivum L. em Thell) and two winter barley (Hordeum vulgare L. em Thell) cultivars were grown with and without straw mulch utilizing six different planting dates. Soil temperature was recorded continuously at seeding depth from planting date through March of the crop year. A series of thermocouples connected to a point recorder were used for the soil temperature measurements. Soil temperature data were condensed through the use of a computer to obtain monthly averages for fallow treatments (bare and straw mulch) and diurnal variations. Plant growth in terms of days to emergence and days to tillering was noted for each planting date and related to the average soil temperature. Soil temperature differences between the bare and mulch (2400 kg/ha wheat straw) fallow treatments were small. Slightly higher soil temperatures were recorded in the mulched plots but the differences had no significant effects on emergence and tillering. Average soil temperatures decreased gradually at each subjecent planting date but differences in the time interval between planting, emergence and tillering for the first four dates were slight. When considering the first four dates of planting the time interval between planting and emergence ranged from 9 to 11 days, while between emergence to tillering time interval ranged from 17 to 29 days. For the fifth and sixth planting date the interval between planting and emergence and emergence and tillering increased sharply ranging between 14 and 20 days and 51 and 125 days, respectively. These increases in time intervals between plant growth stages corresponded with relatively rapid decreases in average soil temperatures during the same period. Significantly lower grain yields were observed for the early (14 August) and late (1 November) planting dates when compared to the other four planting dates. The early planting date produced excessive vegetative growth and many tillers early in the season and may have used much of the stored moisture in the soil in the fall. There was also severe lodging in these plots. The first two planting dates also showed heavy infestation of barley yellow dwarf virus. The plants from the late planting lacked sufficient growth to efficiently use the moisture that was available. Within the second to fifth planting dates all four cultivars exhibited a differential response in yield and for some agronomic traits indicating distinctly different types of adaptation. Higher yields were noted for the barley cultivars, Hudson and Schuyler, at the second and third planting dates while the yield levels of the wheat cultivars, McDermid and Moro, were higher at the fourth and fifth planting dates. Differential responses in plants per square meter and tillers per plant at the same planting dates showed opposite trends, e., as the former increased the latter decreased. Neither of these two traits appeared to contribute to grain yield. The fallow treatments, bare and straw mulch had no significant effect on grain yield in the cultivars studied. However, a significantly higher 1000 kernel weight was observed with the straw mulch treatment. Number of plants per square meter was significantly higher under bare fallow than under mulch fallow treatment. All cultivars showed differential response to fallow systems in tillers per plant but not in yield and other agronomic traits. McDermid and Hudson responded to the mulch fallow while Moro had good response to the bare fallow in tillers per plant. Schuyler responded almost the same to the both mulch and bare systems in tillers per plant.
Download or read book Agrindex written by and published by . This book was released on 1995 with total page 1064 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Crop Physiology written by Victor Sadras and published by Elsevier. This book was released on 2014-09-17 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: From climate change to farming systems to genetic modification of organisms, Crop Physiology, Second Edition provides a practical tool for understanding the relationships and challenges of successful cropping. With a focus on genetic improvement and agronomy, this book addresses the challenges of environmentally sound production of bulk and quality food, fodder, fiber, and energy which are of ongoing international concern. The second edition of Crop Physiology continues to provide a unique analysis of these topics while reflecting important changes and advances in the relevant science and implementation systems. Contemporary agriculture confronts the challenge of increasing demand in terms of quantitative and qualitative production targets. These targets have to be achieved against the background of soil and water scarcity, worldwide and regional shifts in the patterns of land use driven by both climate change and the need to develop crop-based sources of energy, and the environmental and social aspects of agricultural sustainability. - Provides a view of crop physiology as an active source of methods, theories, ideas, and tools for application in genetic improvement and agronomy - Written by leading scientists from around the world - Combines environment-specific cropping systems and general principles of crop science to appeal to advanced students, and scientists in agriculture-related disciplines, from molecular sciences to natural resources management
Download or read book Crop Science written by Roxana Savin and published by Springer. This book was released on 2019-04-06 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a comprehensive and state-of-the-art source reference for understanding the functions and mechanisms responsible for yield and quality determination under a range of conditions. By uncovering relationships and challenges of successful and scalable crop management and breeding, this volume addresses the challenges of environmentally sound production of bulk and quality food, fodder, fiber, and energy which are of ongoing international concern. Contemporary agriculture and crop management confronts the challenge of increasing demand in terms of quantitative and qualitative production targets. These targets have to be achieved against a background of climate change, including soil and water scarcity and higher temperatures, and the environmental and social aspects of agricultural sustainability. This book views crop production as an active source of methods, theories, ideas, and tools for application in genetic improvement and agronomy.
Download or read book The Barley Genome written by Nils Stein and published by Springer. This book was released on 2018-08-18 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents an overview of the state-of-the-art in barley genome analysis, covering all aspects of sequencing the genome and translating this important information into new knowledge in basic and applied crop plant biology and new tools for research and crop improvement. Unlimited access to a high-quality reference sequence is removing one of the major constraints in basic and applied research. This book summarizes the advanced knowledge of the composition of the barley genome, its genes and the much larger non-coding part of the genome, and how this information facilitates studying the specific characteristics of barley. One of the oldest domesticated crops, barley is the small grain cereal species that is best adapted to the highest altitudes and latitudes, and it exhibits the greatest tolerance to most abiotic stresses. With comprehensive access to the genome sequence, barley’s importance as a genetic model in comparative studies on crop species like wheat, rye, oats and even rice is likely to increase.
Download or read book Manual on MUTATION BREEDING THIRD EDITION written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-10-09 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper provides guidelines for new high-throughput screening methods – both phenotypic and genotypic – to enable the detection of rare mutant traits, and reviews techniques for increasing the efficiency of crop mutation breeding.
Download or read book Fundamentals of Rice Crop Science written by Shouichi Yoshida and published by Int. Rice Res. Inst.. This book was released on 1981 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Growth and development of the rice plant. Climatic environments and its influence. Mineral nutrition of rice. Nutritional disorders. Photosynthesis and respiration. Rice plant characters in relation to yielding ability. Physiological analysis of rice yield.
Download or read book Crop Management written by Fabio Marin and published by BoD – Books on Demand. This book was released on 2012-02-22 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agricultural production is related to physical constrains, which may not always be overcomed by technology. However, under the same conditions, it is possible to see well-managed farms consistently making greater profits than similarly structured, neighboring farms. For each abiotical condition, it is well-known there is a difference between the potential and observed yields, which is usually high and often could be reduced through more appropriate management techniques. In this book, we have a selection of agricultural problems encountered in different regions of the world which were addressed using creative solution, offering new approaches for well-known techniques and new tools for old problems.
Download or read book Understanding Options for Agricultural Production written by G.Y. Tsuji and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first premise of this book is that farmers need access to options for improving their situation. In agricultural terms, these options might be manage ment alternatives or different crops to grow, that can stabilize or increase household income, that reduce soil degradation and dependence on off-farm inputs, or that exploit local market opportunities. Farmers need a facilitating environment, in which affordable credit is available if needed, in which policies are conducive to judicious management of natural resources, and in which costs and prices of production are stable. Another key ingredient of this facilitating environment is information: an understanding of which options are viable, how these operate at the farm level, and what their impact may be on the things that farmers perceive as being important. The second premise is that systems analysis and simulation have an impor tant role to play in fostering this understanding of options, traditional field experimentation being time-consuming and costly. This book summarizes the activities of the International Benchmark Sites Network for Agrotechnology Transfer (IBSNAT) project, an international initiative funded by the United States Agency for International Development (USAID). IBSNAT was an attempt to demonstrate the effectiveness of understanding options through systems analysis and simulation for the ultimate benefit of farm households in the tropics and subtropics. The idea for the book was first suggested at one of the last IBSNAT group meetings held at the University of Hawaii in 1993.
Download or read book Handbook of Plant Nutrition written by Allen V. Barker and published by CRC Press. This book was released on 2016-04-19 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: The burgeoning demand on the world food supply, coupled with concern over the use of chemical fertilizers, has led to an accelerated interest in the practice of precision agriculture. This practice involves the careful control and monitoring of plant nutrition to maximize the rate of growth and yield of crops, as well as their nutritional value.
Download or read book Predicting Crop Phenology written by Tom Hodges and published by CRC Press. This book was released on 1990-12-26 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Predicting Crop Phenology focuses on an analysis of the issues faced in predicting the phenology of crop plants and weeds. It discusses how these issues have been handled by active crop growth simulation model developers and emphasizes areas such as the role of modeling in agricultural research and the roles of temperature, length of day, and water stress in plant growth. This comprehensive text also discusses modeling philosophy and programming techniques in modeling crop development and growth. It presents up-to-date information on phenology models for wheat, maize, sorghum, rice, cotton, and several weed species. Predicting Crop Phenology reviews important data for agricultural engineers, plant physiologists, agricultural consultants, researchers, extension agents, model developers, agricultural science instructors and students.
Download or read book The Wheat Plant written by John Percival and published by Bloomsbury Academic. This book was released on 1921 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt: Morphologie - Weizen.
Download or read book Restoration and Development of the Degraded Loess Plateau China written by Atsushi Tsunekawa and published by Springer Science & Business Media. This book was released on 2013-08-23 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents state-of-the-art scientific evidence and technological innovations to restore lands on the Loess Plateau of China, known worldwide for its serious land degradation and desertification problems. Supported by a rapidly developing Chinese economy and the dissemination of effective technology, the Grain-for-Green Project and Western Development Action launched by the Chinese government have resulted in successful ecological restoration and protection over the past 30 years. These programs have contributed not only to conservation of soil and water, but also to economic development. At the same time, however, these developmental interventions have brought new challenges that have not yet been fully addressed. The book describes (1) case studies of success and failure in practice, including rare success stories of combating desertification; (2) technical issues such as erosion control and breeding of stress-tolerant plant species, and socioeconomic measures taken by the Chinese government and lending policies with support from the World Bank; and (3) comprehensive measures against desertification, such as water and wind erosion, salinization, and deforestation. This volume is recommended for researchers and students above the undergraduate level in diverse fields including soil science, rural engineering, social technology and civil engineering, biology, ecology, climatology, physical and human geography, and developmental economics, among others. It also serves as a valuable resource for engineers, government officials, and NPOs and NGOs involved in afforestation, ecological restoration, combating desertification, disaster prevention, and sustainable rural development.
Download or read book Crop Stress and its Management Perspectives and Strategies written by B. Venkateswarlu and published by Springer Science & Business Media. This book was released on 2011-11-22 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crops experience an assortment of environmental stresses which include abiotic viz., drought, water logging, salinity, extremes of temperature, high variability in radiation, subtle but perceptible changes in atmospheric gases and biotic viz., insects, birds, other pests, weeds, pathogens (viruses and other microbes). The ability to tolerate or adapt and overwinter by effectively countering these stresses is a very multifaceted phenomenon. In addition, the inability to do so which renders the crops susceptible is again the result of various exogenous and endogenous interactions in the ecosystem. Both biotic and abiotic stresses occur at various stages of plant development and frequently more than one stress concurrently affects the crop. Stresses result in both universal and definite effects on plant growth and development. One of the imposing tasks for the crop researchers globally is to distinguish and to diminish effects of these stress factors on the performance of crop plants, especially with respect to yield and quality of harvested products. This is of special significance in view of the impending climate change, with complex consequences for economically profitable and ecologically and environmentally sound global agriculture. The challenge at the hands of the crop scientist in such a scenario is to promote a competitive and multifunctional agriculture, leading to the production of highly nourishing, healthy and secure food and animal feed as well as raw materials for a wide variety of industrial applications. In order to successfully meet this challenge researchers have to understand the various aspects of these stresses in view of the current development from molecules to ecosystems. The book will focus on broad research areas in relation to these stresses which are in the forefront in contemporary crop stress research.
