Root Methods
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Root Methods
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Author : A.L. Smit
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-09
Root Methods written by A.L. Smit and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-09 with Science categories.
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.
Methods Of Studying Root Systems
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Author : W. Böhm
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Methods Of Studying Root Systems written by W. Böhm and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
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.
Methods For The Examination Of Root Systems And Roots
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Author : J. J. Schuurman
language : en
Publisher:
Release Date : 1971
Methods For The Examination Of Root Systems And Roots written by J. J. Schuurman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Botany categories.
Point Estimation Of Root Finding Methods
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Author : Miodrag Petkovic
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-05-29
Point Estimation Of Root Finding Methods written by Miodrag Petkovic and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-05-29 with Mathematics categories.
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.
Applications Of Continuous And Steady State Methods To Root Biology
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Author : John G. Torrey
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Applications Of Continuous And Steady State Methods To Root Biology written by John G. Torrey and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
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.
Methods For The Examination Of Root Systems And Roots
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Author : J. J. Schuurman
language : en
Publisher:
Release Date : 1971
Methods For The Examination Of Root Systems And Roots written by J. J. Schuurman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with categories.
Response Of Aspen Root Suckers To Regeneration Methods And Post Harvest Protection
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Author : Wayne D. Shepperd
language : en
Publisher:
Release Date : 1996
Response Of Aspen Root Suckers To Regeneration Methods And Post Harvest Protection written by Wayne D. Shepperd and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Aspen categories.
Root Exudates Collection Method And Analysis
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Author : Mr. Rathod Balaji Ulhas
language : en
Publisher: Ashok Yakkaldevi
Release Date : 2020-05-05
Root Exudates Collection Method And Analysis written by Mr. Rathod Balaji Ulhas and has been published by Ashok Yakkaldevi this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-05-05 with Art categories.
The importance of rhizosphere in plant growth and development was first reported by Lorentz Hilter a century ago and it was redefined by Pinton as the zone that includes the soil influenced by the root along with root tissues colonized by microorganisms (Darrah, 1993). Roots are the major part of the plant through which plants derive nutrients and water from the soil. However, for higher efficiency of nutrient absorption and protection against abiotic and biotic stresses, plant roots establish sophisticated molecular signaling mechanisms with diverse soil flora and fauna. In the rhizosphere environment, the interaction between plant roots, soil and microbes occur in very complex ways and significantly effects on soil physical and chemical properties, which in turn modulate the microbial population in the rhizosphere (Nihorimbere et al., 2011). Recently, scientists have started realizing the importance of a specific rhizosphere interactions and its direct role in production of higher crop yield, while maintaining healthy soil conditions; which is the basis for sustainable agriculture and need of alternative approaches for overcoming some of the negative effects related to green-revolution, which includes overuse of chemical fertilizers, pesticides, reduced use of organic matter and poor nutrient management.
Numerical Methods For Roots Of Polynomials
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Author : J.M. McNamee
language : en
Publisher: Newnes
Release Date : 2013-07-19
Numerical Methods For Roots Of Polynomials written by J.M. McNamee and has been published by Newnes this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-07-19 with Mathematics categories.
Numerical Methods for Roots of Polynomials - Part II along with Part I (9780444527295) covers most of the traditional methods for polynomial root-finding such as interpolation and methods due to Graeffe, Laguerre, and Jenkins and Traub. It includes many other methods and topics as well and has a chapter devoted to certain modern virtually optimal methods. Additionally, there are pointers to robust and efficient programs. This book is invaluable to anyone doing research in polynomial roots, or teaching a graduate course on that topic. First comprehensive treatment of Root-Finding in several decades with a description of high-grade software and where it can be downloaded Offers a long chapter on matrix methods and includes Parallel methods and errors where appropriate Proves invaluable for research or graduate course
Numerical Methods For Roots Of Polynomials Part I
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Author : J.M. McNamee
language : en
Publisher: Elsevier
Release Date : 2007-08-17
Numerical Methods For Roots Of Polynomials Part I written by J.M. McNamee and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-08-17 with Mathematics categories.
Numerical Methods for Roots of Polynomials - Part I (along with volume 2 covers most of the traditional methods for polynomial root-finding such as Newton’s, as well as numerous variations on them invented in the last few decades. Perhaps more importantly it covers recent developments such as Vincent’s method, simultaneous iterations, and matrix methods. There is an extensive chapter on evaluation of polynomials, including parallel methods and errors. There are pointers to robust and efficient programs. In short, it could be entitled “A Handbook of Methods for Polynomial Root-finding . This book will be invaluable to anyone doing research in polynomial roots, or teaching a graduate course on that topic. First comprehensive treatment of Root-Finding in several decades Gives description of high-grade software and where it can be down-loaded Very up-to-date in mid-2006; long chapter on matrix methods Includes Parallel methods, errors where appropriate Invaluable for research or graduate course