Download or read book Effects of Transient Waterlogging on the Growth and Yield of Winter Wheat Triticum Aestivum L in Lysimeters written by R. K. Belford and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analyses of the Effects of Water Nitrogen and Weather on Growth Grain Yield Biomass Production and Light Use Efficiency of Winter Wheat Triticum Aestivum L written by Francisco Mojarro and published by . This book was released on 1988 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index to Theses Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards written by and published by . This book was released on 1982 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Encyclopedia of Soil Science written by Rattan Lal and published by CRC Press. This book was released on 2017-01-11 with total page 2804 pages. Available in PDF, EPUB and Kindle. Book excerpt: New and Improved Global Edition: Three-Volume Set A ready reference addressing a multitude of soil and soil management concerns, the highly anticipated and widely expanded third edition of Encyclopedia of Soil Science now spans three volumes and covers ground on a global scale. A definitive guide designed for both coursework and self-study, this latest version describes every branch of soil science and delves into trans-disciplinary issues that focus on inter-connectivity or the nexus approach. For Soil Scientists, Crop Scientists, Plant Scientists and More A host of contributors from around the world weigh in on underlying themes relevant to natural and agricultural ecosystems. Factoring in a rapidly changing climate and a vastly growing population, they sound off on topics that include soil degradation, climate change, soil carbon sequestration, food and nutritional security, hidden hunger, water quality, non-point source pollution, micronutrients, and elemental transformations. New in the Third Edition: Contains over 600 entries Offers global geographical and thematic coverage Entries peer reviewed by subject experts Addresses current issues of global significance Encyclopedia of Soil Science, Third Edition: Three Volume Set expertly explains the science of soil and describes the material in terms that are easily accessible to researchers, students, academicians, policy makers, and laymen alike. Also Available Online This Taylor & Francis encyclopedia is also available through online subscription, offering a variety of extra benefits for researchers, students, and librarians, including: Citation tracking and alerts Active reference linking Saved searches and marked lists HTML and PDF format options Contact Taylor and Francis for more information or to inquire about subscription options and print/online combination packages. US: (Tel) 1.888.318.2367; (E-mail) [email protected] International: (Tel) +44 (0) 20 7017 6062; (E-mail) [email protected]

Download or read book The Effects of Winter Waterlogging on the Growth Development and Yield of UK Varieties of Winter Wheat written by Edward Dickin and published by . This book was released on 2005 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Waterlogging Effects on the Vegetative Growth of Wheat Triticum Aestivum L Barley Hordeum Vulgare L and Triticale a Comparison of Cultivars written by Robert G. Northway and published by . This book was released on 1976 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Winter cereal crops; waterlogging effects; wheat cultivars; Cape and Clipper barleys.

Download or read book Agrindex written by and published by . This book was released on 1981 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Waterlogging Soil on the Growth of Wheat Triticum Aestivum L written by M. C. T. Trought and published by . This book was released on 1978 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Waterlogging Soil on the Growth of Wheat Triticum Aestivum L written by Michael Clark Trevor Trought and published by . This book was released on 1978 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Soil Water Availability for Spring Growth of Winter Wheat Triticum Aestivum L as Influenced by Planting Date and Tillage written by William Frederick Heer and published by . This book was released on 1985 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Host Bibliographic Record for Boundwith Item Barcode 30112033097202 and Others written by and published by . This book was released on 2013 with total page 1452 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physical Characteristics and Agronomic Impacts of Winter Wheat Triticum Aestivum L Root Restrictive Soils in the Palouse written by Rachel Sarah Breslauer and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Exposed compacted subsoils pose a risk to sustained dryland winter wheat (Triticum aestivum L.) production in the in the Palouse agricultural region. Compacted, high bulk density soils can restrict root density in subsoils thereby decreasing crop water and nitrogen uptake and reducing crop performance. Root restriction and its effects on winter wheat agronomics were examined over the course of two field-scale on-farm studies in eastern Washington and northern Idaho. The first study aimed to understand: current within-field spatial variability of root restrictive depth (RRD), soil bulk density effects on root restriction, and root restriction effects on crop water uptake. At harvest in 2018, soil profiles in two fields were sampled to 120 cm depth at 15 cm increments were collected to measure soil bulk density, root density, and crop water use at depth. Results showed that within-field RRD varied (>120 - 75 cm), root density decreased with increasing bulk density, and soil water content at harvest increased as root density decreased. The second study evaluated the effect of subsoil compaction and water uptake on crop agronomics and nitrogen (N) use in eight site-years from 2016-2018. Soil samples from 0-120 cm depth and associated plant samples were collected at harvest to measure soil bulk density, N and water use, crop yield, and grain protein concentration. The yield gap between potential and realized yield was calculated from water in the top 120 cm of the soil profile after harvest. Results showed that compaction in the top 75 cm of the soil profile negatively affected grain and biomass yield by reducing crop extraction of deep soil water. Mean yield gaps for each field were high (352-1775 kg ha-1). Assuming that university fertilizer recommendations were used (0.045 kg N per kg yield goal), 15-76 kg N ha-1 was unused by the crop due to the yield gap. This assumption is consistent with our observations in 2018 where profile water content and residual nitrate-N in the subsoil were positively correlated. Tools are needed to help identify and adjust yield goals for root restriction to prevent over-application of N in affected field areas.

Download or read book Australian Journal of Agricultural Research written by and published by . This book was released on 2004 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quantitative Trait Loci Associated with Waterlogging Tolerance in a Soft Red Winter Wheat written by Diana Carolina Ballesteros Benavides and published by . This book was released on 2013 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Waterlogging is caused when water stays superficially in the soil for an extended period of time, creating an anaerobic environment which decreases plant growth and grain yield at maturity. Despite the impact of waterlogging on wheat production both globally and in the southeastern U.S., very little is known about the genetic control of waterlogging tolerance in wheat. The objective of this study was to determine the amount of genetic variation for vegetative stage waterlogging tolerance present within a wheat recombinant inbred line (RIL) population and to identify quantitative trait loci (QTL) associated with tolerance and productivity. Experiments were carried out in both the greenhouse and the field using a RIL population derived from the wheat cultivars 'USG3209' and 'Jaypee'. The effect of vegetative stage waterlogging was determined by quantifying fresh shoot biomass, fresh root biomass, dry shoot biomass, dry root biomass, root length, chlorophyll content, tiller number, elongation, and plant height pre and post-treatment under stressed and non-stressed conditions. In both the greenhouse and the field experiments, biomass traits, chlorophyll content ere significantly reduced by waterlogging stress with percent reduction ranging from 10 to 54%. Significant genetic variation was detected for biomass traits, chlorophyll content, tiller number, elongation, and plant height post-treatment. Root traits showed high sensitivity to waterlogging and significant genotype by treatment interaction. Shoot biomass and root biomass were highly correlated, indicating the possibility of indirect selection for root biomass. The QTL analysis revealed 53 total QTLs, with 34 detected under waterlogging stress. These QTLs clustered into 19 regions distributed throughout the wheat genome. QTL on chromosomes 2A, 2B, 2D, 5A and 5B were found to localize with known genes regulating plant height and flowering time. Other QTL regions located on chromosomes 1B, 2A and 6B appear to be novel for biomass production specific to waterlogging stress and can be used for marker-assisted selection to more efficiently select for waterlogging tolerant lines.

Download or read book Water Stress Effects on Growth Yield and Quality of Wheat Triticum Aestivum L written by Zwidofhelangani Aubrey Mbave and published by . This book was released on 2013 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Winter Wheat Triticum Aestivum L Evapotranspiration crop Water Use and Crop Coefficients written by Suat Irmak and published by . This book was released on 2016 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Winter wheat is an important commodity grain crop in the United States and globally, and the third major crop grown in Nebraska. From emergence to harvest, effective water management is important at each stage of wheat growth. Water use can vary substantially on a daily basis, depending on climatic conditions and wheat health. Winter wheat water use (evapotranspiration, ETc) depends on variety; growth stage; canopy and leaf structure; populatoin density; climatic conditions; and irrigation, soil, and crop management practices. This extension circular discusses the interannual variation in measured wheat ETc and presents measured grass- and alfalfa-reference crop coefficients (Kc) for each specific growth stage. Crop growth-specific crop coefficient tables were developed, which can be used in practical applications by wheat growers, their advisors, water management and agricultural agencies, and other professionals. (Page 1)

Download or read book Fallow Water Retention and Wheat Growth as Affected by Tillage Method and Surface Soil Compaction written by William F. Schillinger and published by . This book was released on 1992 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: No-tillage winter wheat (Triticum aestivum L.) grown in a wheat-fallow cropping system has consistently produced lower grain yields than conventionally tilled soils in the semiarid Pacific Northwest. A 2-year study was conducted in a long-term tillage trial at Moro, OR to determine factors responsible for differences in wheat growth and yield as affected by moldboard plow, stubble mulch, and no-tillage fallow method. Soil water, soil mineral N, plant N uptake, soil temperature, above-ground dry matter accumulation, and yield components were measured. The highest fallow efficiency during both years was achieved by stubble mulch tillage, followed by the plow and no-tillage systems. Accelerated water loss from no-tillage fallow occurred during the hot, dry summer due to uninterrupted capillary flow. The main yield limitations to no-tillage technology in this study were: (1) diminished seedzone water at planting time in the fall which resulted in reduced germination and stand establishment; (2) cooler spring soil temperatures which slowed crop development and dry matter accumulation, and; (3) production of fewer spikes per unit area. The second objective of this study was to determine if late season seedzone water loss from fallow could be reduced by altering the physical characteristics of the dust mulch. Loss of seedzone water appears to accelerate in late August and September because of increased diurnal heat flux. Compacting the soil surface with a roller in mid-August increased surface bulk density and volumetric water content to depths as great as 10 cm. Evaporative water loss from compacted plots, however, occurred at a faster rate than from control plots and, by mid-September, there were no differences in seedzone water content among treatments. Increased soil thermal conductivity appeared to be the reason for accelerated water loss in compacted treatments. Although water loss occurred at a faster rate in compacted treatments, compacting fallow soils with a roller immediately prior to fall seeding may increase winter wheat germination, emergence, and stand establishment during years of marginal seedzone water.