Root Methods PDF Download
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Author | : A.L. Smit |
Publisher | : Springer Science & Business Media |
Total Pages | : 590 |
Release | : 2013-03-09 |
Genre | : Science |
ISBN | : 366204188X |
Download Root Methods Book in PDF, ePub and Kindle
A comprehensive review of all modern methods for plant root research, both in the field and in the laboratory. It covers the effects of environmental interactions with root growth and function, focussing in particular on the assessment of root distribution and dynamics. It also describes and discusses the processing of root observations, analysis and modelling of root growth and architecture, root-image analysis, computer-assisted tomography and magnetic resonance imaging. Furthermore, a survey of the application of isotope techniques in root physiology is given.
Author | : W. Böhm |
Publisher | : Springer Science & Business Media |
Total Pages | : 202 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 3642672825 |
Download Methods of Studying Root Systems Book in PDF, ePub and Kindle
Root research under natural field conditions is still a step-child of science. The reason for this is primarily methodological. The known methods are tedious, time consuming, and the accuracy of their results is often not very great. Many research workers have been discouraged by doing such root studies. The need for more information on the development and distribution of plant roots in different soils under various ecological conditions is, however, obvious in many ecological disciplines. Especially the applied botanical sciences such as agriculture, horticulture, and forestry are interested in obtaining more data on plant roots in the soil. This book will give a survey of existing methods in ecological root research. Primarily field methods are presented; techniques for pot experiments are described only so far as they are important for solving ecological problems. Laboratory methods for studying root physiology are not covered in this book. Scientific publications on roots are scattered in many different journals published all over the world. By working through the international root literature I found that about ten thousand papers on root ecology have been published at the present. This is not very much compared with the immense literature on the aboveground parts of the plants, but is, however, too much to cite in this book.
Author | : John June Davis |
Publisher | : |
Total Pages | : 16 |
Release | : 1917 |
Genre | : Corn |
ISBN | : |
Download The Corn Root-aphis and Methods of Controlling it Book in PDF, ePub and Kindle
Author | : John G. Torrey |
Publisher | : Springer Science & Business Media |
Total Pages | : 253 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 940092237X |
Download Applications of Continuous and Steady-State Methods to Root Biology Book in PDF, ePub and Kindle
This book provides an excellent illustration of the interrelationship between progress in scientific methodology and conceptual advances, and its publica tion should contribute to further advances. It is well known that major advances in understanding often follow the development of new methods. The development of the acetylene reduction assay for nitrogenase activity provides a good example of this interrelationship between theory and methods. Theoretical knowledge led to a search for substrates for nitro genase that could be assayed for more easily than ammonium, the normal product of the enzyme. The discovery of the reduction of acetylene to ethylene by nitrogenase provided the ideal answer to the problem by provid ing a rapid, specific, nondestructive, and inexpensive assay for nitrogenase activity. This assay is now used by almost every laboratory doing research on nitrogen fixation. However, further use and development of the acetylene reduction assay has shown that it can underestimate nitrogenase activity and can even give incorrect relative values under some circumstances. The major problem is that exposure of legume nodules to acetylene can cause a large increase in the resistance to oxygen diffusion into the nodule. This reduced supply of oxygen decreases the rate of nitrogenase activity within a few minutes.
Author | : Miodrag Petkovic |
Publisher | : Springer Science & Business Media |
Total Pages | : 222 |
Release | : 2008-05-29 |
Genre | : Mathematics |
ISBN | : 3540778500 |
Download Point Estimation of Root Finding Methods Book in PDF, ePub and Kindle
This book sets out to state computationally verifiable initial conditions for predicting the immediate appearance of the guaranteed and fast convergence of iterative root finding methods. Attention is paid to iterative methods for simultaneous determination of polynomial zeros in the spirit of Smale's point estimation theory, introduced in 1986. Some basic concepts and Smale's theory for Newton's method, together with its modifications and higher-order methods, are presented in the first two chapters. The remaining chapters contain the recent author's results on initial conditions guaranteing convergence of a wide class of iterative methods for solving algebraic equations. These conditions are of practical interest since they depend only on available data, the information of a function whose zeros are sought and initial approximations. The convergence approach presented can be applied in designing a package for the simultaneous approximation of polynomial zeros.
Author | : John June Davis |
Publisher | : |
Total Pages | : 12 |
Release | : 1949 |
Genre | : Corn |
ISBN | : |
Download The Corn Root Aphid and Methods of Controlling it Book in PDF, ePub and Kindle
Author | : Florian Cajori |
Publisher | : |
Total Pages | : 330 |
Release | : 1897 |
Genre | : Mathematics |
ISBN | : |
Download A History of Elementary Mathematics with Hints on Methods of Teaching Book in PDF, ePub and Kindle
Author | : James Wood |
Publisher | : Elsevier |
Total Pages | : 450 |
Release | : 2013-10-22 |
Genre | : Technology & Engineering |
ISBN | : 1483148130 |
Download Computational Methods in Reactor Shielding Book in PDF, ePub and Kindle
Computational Methods in Reactor Shielding deals with the mathematical processes involved in how to effectively control the dangerous effect of nuclear radiation. Reactor shielding is considered an important aspect in the operation of reactor systems to ensure the safety of personnel and others that can be directly or indirectly affected. Composed of seven chapters, the book discusses ionizing radiation and how it aids in the control and containment of radioactive substances that are considered harmful to all living things. The text also outlines the necessary radiation quantities and units that are needed for a systemic control of shielding and presents an examination of the main sources of nuclear radiation. A discussion of the gamma photon cross sections and an introduction to BMIX, a computer program used in illustrating a technique in identifying the gamma ray build-up factor for a reactor shield, are added. The selection also discusses various mathematical representations and areas of shielding theory that are being used in radiation shielding. The book is of great value to those involved in the development and implementation of systems to minimize and control the dangerous and lethal effect of radiation.
Author | : Rodrigues Ottolengui |
Publisher | : |
Total Pages | : 240 |
Release | : 1899 |
Genre | : Dental cavity preparation |
ISBN | : |
Download Methods of Filling Teeth Book in PDF, ePub and Kindle
Author | : Charles Alexander McMurry |
Publisher | : |
Total Pages | : 422 |
Release | : 1913 |
Genre | : Teaching |
ISBN | : |
Download Public School Methods Book in PDF, ePub and Kindle