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1000 tulosta hakusanalla D W A Sharp

Düngung der Kulturpflanzen 2

Düngung der Kulturpflanzen 2

Professor Dr. N. Atanasiu; Professor Dr. W. Baden; Professor Dr.-Ing. Dr. agr. habil. F. Baltin; Dr. L. D. Baver; Dipl.-Ing. A. Blamauer; Professor Dr. Boguslawski; Diplomlandwirt Dr. K. Bräunlich; Diplomlandwirt Dr. D. Brüning; Professeur Dr. Y. Coïc; Diplomgärtnerin Liselotte Forchthammer; Ing. W. Frohner; Professor Dr. A. Fruhstorfer; Direktor Dr. L. Gisiger; Dr. M. Gökgöl; Professor Dr. W. Gruppe; Dr. C. Heinemann; Dozent Dr. W. Jahn-Deesbach; Dr. J. Jung; Professor Dr. Dr. h. c. E. Klapp; Professor Dr. L. M. Kopetz

Springer Verlag GmbH
2014
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unbedeutenden Schaden verursachte, wurde in kalkhaltigen und nassen BOden zu einem groBen Problem (SEELIGER 1933); wir haben heute noch keine Unterlage, welche allen Anspriichen geniigen wiirde. Die Auswertung der Versuche leidet unter einer weiteren Schwierigkeit, welche sich allerdings auch bei anderen landwirtschaftlichen Versuchen, aber in viel geringerem Umfang, einstellt. Bei der Rebe ist nicht so sehr der Ertrag von ausschlaggebender Bedeutung, sondern vielmehr die Qualitat; sie kann durch kellertechnische MaBnahmen wesentlich starker beeinfluBt werden, aIs dies bei anderen Nahrungsmitteln durch deren Verarbeitung der Fall ist. Wenn auch papier- und gaschromatographische Methoden einen groBen Fort schritt in der objektiven Untersuchungsmoglichkeit gebracht haben, bleibt doch die organoleptische Priifung und damit eine subjektive Feststellung in ihrer Bedeutung unerreicht. Zusammenfassend konnen wir konstatieren, daB bei den angefiihrten Schwierigkeiten fUr eine exakte Versuchsanstellung nur verhaltnismaBig wenig Versuche iibrig bleiben, bei denen von einer statistischen Sicherung der Er gebnisse gesprochen werden kann. Eine zukiinftige varianzanalytische Auswertung einfacher Versuche verspricht wesentliche Fortschritte. Der Weinbau wird geographisch gesehen in den Grenzen betrieben, welche das Klima fUr diese Kultur gezogen hat. Der Wachstumsfaktor Warme kommt in der nordlichen Weinbauzone ofter ins Minimum und beeintrachtigt damit die Zuckerbildung. Da die Witterung die Diingungseinfliisse im Weinbau weit starker iibertreffen kann als dies bei anderen Kulturen der Fa.ll ist, stand die Rebenernahrung nie so sehr im Mittelpunkt des Interesses. Hinzu kommt, daB Erfolge oder MiBerfolge in der Schadlingsbekampfung die Wirtschaftlichkeit des Weinbaues im allgemeinen, d. h. abgesehen von starkem Nahrstoffmangel, mehr beeinflussen aIs die Diingung."
Instant Insights: Viruses Affecting Horticultural Crops

Instant Insights: Viruses Affecting Horticultural Crops

Various authors; Kenneth C. Eastwell; Karel Petrzik; Manuel Rubio; Federico Dicenta; Pedro Martínez-Gómez; H Czosnek; A. Koren; F. Vidavski; John E. Thomas; Andrew D. W. Geering

Burleigh Dodds Science Publishing Limited
2024
pokkari
This book features six peer-reviewed reviews on viruses affecting key horticultural crops.The first chapter considers best management practices for the control of viruses and virus-like agents in apple production, including the development of orchards with clean, virus-tested planting stock. The second chapter comprehensively details how Apple mosaic virus is spread and describes the symptoms displayed by affected host plants.The third chapter examines the challenge of Plum pox virus (PPV) control for sustainable cultivation of plums and looks at the genetic and molecular basis of PPV resistance in Prunus.The fourth chapter outlines the major insect-transmitted viruses infecting tomato crops, including viruses transmitted by aphids, thrips, whitefly and leafhoppers.The fifth chapter reviews current knowledge on banana bunchy top disease. The chapter outlines symptoms of the disease, as well as the biological characteristics of the pathogen related to host range, transmission and spread.The final chapter discusses the symptoms, taxonomy, diagnosis, epidemiology and control of minor viral pathogens of banana, plantain and abacá, such as cucumber mosaic virus, banana bract mosaic virus and sugarcane mosaic virus.
Modern Methods of Plant Analysis / Moderne Methoden der Pflanzenanalyse

Modern Methods of Plant Analysis / Moderne Methoden der Pflanzenanalyse

K. Biemann; N. K. Boardman; B. Breyer; S. P. Burg; W. L. Butler; D. J. David; P. S. Davis; A. E. Dimond; A. C. Hildebrandt; F. A. Hommes; O. Kratky; H. F. Linskens; H. Moor; K. H. Norris; I. J. O'Donnell; J. V. Possingham; H. Prat; D. H. M. van Slogteren; E. Stahl; J. A. van der Veken; J. P. H. van der Want; E. F. Woods

Springer-Verlag Berlin and Heidelberg GmbH Co. K
2012
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123 phase and hence have no direct bearing on the retention time of solutes. However in gas-solid chromatography, a considerable quantity of the mobile phase may be adsorbed on the surface of the stationary adsorbent which diminishes the column's effective length and ability to retain solutes. In this respect helium has been found to be preferable to most other gases (GREENE and Roy, 1957) because it is adsorbed to the least extent. 3. Packed columns offer a considerable resistance to flow, which may create a pressure differential between inlet and outlet of sufficient magnitude to cause an unfavorable flow rate through a significant length of the column. A reduced inlet/outlet pressure ratio can be obtained by using light molecular weight gases toward which the column packing shows the greatest permeability. The flow rate of the mobile phase is normally adjusted by altering the column inlet pressure, for which purpose commercial pressure regulators of sufficient accuracy are available. Quantitative measurements of the flow rate can be made by a number of methods, including rotameters, orifice meters, soapfilm flow meters and displacement of water. The former two methods are the most con­ venient but the least accurate; moreover they create a back pressure and are temperature dependent whereas although the moving soap bubble is cumbersome to employ and unusable for continuous readings, it is preferred when the highest accuracy is required.
Development of Sensory Systems

Development of Sensory Systems

C. M. Bate; V. McMillan Carr; P. P. C. Graziadei; H. V. B. Hirsch; A. Hughes; D. Ingle; A. G. Leventhal; G. A. Monti Graziadei; E. W. Rubel; R. Saxod; A. B. Scheibel; M. E. Scheibel; J. Silver

Springer-Verlag Berlin and Heidelberg GmbH Co. K
2011
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This preface is addressed to the reader who wishes to inquire into the prevailing concepts, hypotheses and theories about development of sensory systems and wants to know how they are exemplified in the following chapters. I believe that science is hypothesis and theory and that the growth and evolution of any branch of science can be measured by the degree to which its theories have been reified. By that standard, one must conc1ude that developmental neuro­ biologie is in its infancy. The rapid accumulation of observations which has occurred in this branch of science in the past century leads to progress only to the extent that the facts validate or falsify hypotheses. The following chapters show that we have a plethora of facts but a dearth of hypotheses. Another index of the maturity of any branch of science is its level of historical self-awareness. Because the history of any branch of science is essentially the history of ideas and of the rise and fall of theories, the level of historical awareness is related to the extent to which reification of its hypothetical constructs has advanced. It is largely because few theories of development of sensory systems, or indeed, of developmental neurobiology, have progressed far in the process of reification that the his tory of developmental neurobiology remains unwritten. The subject of this volume is hardly mentioned in the many books devoted to the history of related disciplines.
Comparative Physiology and Evolution of Vision in Invertebrates

Comparative Physiology and Evolution of Vision in Invertebrates

H. Autrum; M. F. Bennet; B. Diehn; K. Hamdorf; M. Heisenberg; M. Järviletho; P. Kunze; R. Menzel; W. H. Miller; A. W. Snyder; D. G. Stavenga; M. Yoshida

Springer-Verlag Berlin and Heidelberg GmbH Co. K
2011
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In the comparative physiology of photoreception by the Protista and the invertebrates two aspects are emphasized: (1) the diversity of visual processes in these groups and (2) their bearing upon general mechanisms of photoreception. Invertebrates have evolved a far greater variety of adaptations than vertebrates­ modifications aiding survival in the remarkably different biotopes they occupy. The number of species in itself suggests this multiformity; each of them has peculiarities of its own, in morphology as well as in physiology and behavior. But these special adaptations are variations on a few great themes. Although the catalogue of invertebrate species is immense, the literature concerning them nearly rivals it in extent-even if one considers only that fraction dealing with visual physiology. Taxonomy proceeds by grouping the species, categorizing them in genera, families, orders, and progressively larger units. Similarly, comparative physiology aims at an analogous, more or less compre­ hensive, classification. This Part A of Volume VII/6, like Part B that follows it, emphasizes the broad questions that concern groups larger than the individual species; in some cases these questions have general applicability. The middle course between approaches that are too specialized and those that are too general is often elusive, but here we attempt to follow it. The vast number of special adaptations-probably, as we have said, as large as the number of species-is beyond the range even of a handbook.
Reviews of Physiology, Biochemistry and Pharmacology

Reviews of Physiology, Biochemistry and Pharmacology

M. P. Blaustein; R. Greger; H. Grunicke; R. Jahn; W. J. Lederer; L. M. Mendell; A. Miyajima; D. Pette; G. Schultz; M. Schweiger; E. Habermann

Springer-Verlag Berlin and Heidelberg GmbH Co. K
2014
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P.J. Pearson, P.M. Vanhoutte: Vasodilator and Vasoconstrictor Substances Produced by the Endothelium. L. Dux: Muscle Relaxation and Sarcoplasmic Reticulum Function in Different Muscle Types. C.C. Ashley, P.J. Griffith, T.J. Lea, I.P. Mulligan, R.e. Palmer, and S.J. Simnett: Barnacle Muscle: Ca2+ Activation and Mechanics.
Reviews of Physiology, Biochemistry and Pharmacology

Reviews of Physiology, Biochemistry and Pharmacology

M. P. Blaustein; R. Greger; H. Grunicke; R. Jahn; W. J. Lederer; L. M. Mendell; A. Miyajima; D. Pette; G. Schultz; M. Schweiger; E. Habermann

Springer-Verlag Berlin and Heidelberg GmbH Co. K
2014
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R. Levenson: Isoforms of the Na,K-ATPase: Family Members in Search of Function.- E. Petzinger: Transport of Organic Anions in the Liver. An Update on Bile Acid, Fatty Acid, Monocarboxylate, Anionic Amino Acid, Cholephilic Organic Anion and Anionic Drug Transport.- E. Schultz, K.M. McCormick: Skeletal Muscle Satellite Cells.
Reviews of Physiology, Biochemistry and Pharmacology

Reviews of Physiology, Biochemistry and Pharmacology

M. P. Blaustein; R. Greger; H. Grunicke; R. Jahn; W. J. Lederer; L. M. Mendell; A. Miyajima; D. Pette; G. Schultz; M. Schweiger; E. Habermann

Springer-Verlag Berlin and Heidelberg GmbH Co. K
2014
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K.W. Bock: The Aryl Hydrocarbon or Dioxin Receptor: Biologic and Toxic Responses.-K. Grieshaber, I. Hardewig, U. Kreutzer, and H.-O. Pörtner: Physiological and Metabolic Responses to Hypoxia in Invertebrates.-K.-W. Koch: Calcium as Modulator of Phototransduction in Vertebrate Photoreceptor Cells.
Reviews of Physiology, Biochemistry and Pharmacology

Reviews of Physiology, Biochemistry and Pharmacology

M. P. Blaustein; R. Greger; H. Grunicke; R. Jahn; W. J. Lederer; L. M. Mendell; A. Miyajima; D. Pette; G. Schultz; M. Schweiger; E. Habermann

Springer-Verlag Berlin and Heidelberg GmbH Co. K
2014
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In this regular issue of Reviews of Physiology the first contribution by Warth and Bleich is on K+ Channels and Colonic Function, the second by Offermanns on Mammalian G-Protein Function in vivo: New Insights Through Altered Expression, and the third contribution by Tenenholz et al. (including one editor of the series) on Structural Determinants of Scorpion Toxin Affinity: The Charybdotoxin (alpha-KTX) Family of K+-channel Blocking Peptides.
Reviews of Physiology, Biochemistry and Pharmacology

Reviews of Physiology, Biochemistry and Pharmacology

M. P. Blaustein; R. Greger; H. Grunicke; R. Jahn; W. J. Lederer; L. M. Mendell; A. Miyajima; D. Pette; G. Schultz; M. Schweiger; E. Habermann

Springer-Verlag Berlin and Heidelberg GmbH Co. K
2014
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W. Ulbricht: Effects of veratridine on sodium currents and fluxes. W. Meyerhof: The elucidation of somatostatin receptor functions: a current view.M. Leist, F. Gantner, g. Künstle and A. Wendel: Cytokine-mediated hepatic apoptosis.
Reviews of Physiology Biochemistry and Pharmacology

Reviews of Physiology Biochemistry and Pharmacology

M. P. Blaustein; R. Greger; H. Grunicke; R. Jahn; W. J. Lederer; L. M. Mendell; A. Miyajima; D. Pette; G. Schultz; M. Schweiger; E. Habermann

Springer-Verlag Berlin and Heidelberg GmbH Co. K
2014
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In this second special issue on signal transduction leading specialists in their fields again present overviews of topics related to the highly topicalsubject of signal transduction. The first contribution, by Keppler, deals with the biosynthesis, transport, inactivation, and analysis of leukotrienes. Mohr et al. present an excellent overview of the biology of the peptide hormone oxytocin and its role in signal transduction.The review by Holzer describes the significance of peptinergic sensory neurons in the control of vascular functions. In the contribution by Wolf etal the molecular biology of the Y chromosome is discussed.
Reviews of Physiology, Biochemistry and Pharmacology

Reviews of Physiology, Biochemistry and Pharmacology

M. P. Blaustein; R. Greger; H. Grunicke; R. Jahn; W. J. Lederer; L. M. Mendell; A. Miyajima; D. Pette; G. Schultz; M. Schweiger; E. Habermann

Springer-Verlag Berlin and Heidelberg GmbH Co. K
2014
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Cook et al.: Phospholipases C and D in Mitogenic Signal Transduction. Moolenaar et al: Lysophosphatidatic Acid: A Bioactive Phospholipid with Growth Factor-Like Properties. Kozma et al.: Serine/Threonine Kinases in thePropagation of the Early Mitogenic Response. Diringer et al: A Retrospective on Transformation, Growth Control, and some Peculiarities of Lipid Metabolism. Villereal et al.: Calcium Signals in Growth Factor Signal Transduction. Wakabayashi et al.: Structure Function of the Growth Factor-Activatable Na+/H+ Exchanger. Herrlich et al.: DNA Damage-Induces Gene Expression: Signal Transduction and Relation to Growth Factor Signaling. Lucibello et al.: Transcription Factor Encoding Oncogenes
Reviews of Physiology, Biochemistry and Pharmacology

Reviews of Physiology, Biochemistry and Pharmacology

M. P. Blaustein; R. Greger; H. Grunicke; R. Jahn; W. J. Lederer; L. M. Mendell; A. Miyajima; D. Pette; G. Schultz; M. Schweiger; E. Habermann

Springer-Verlag Berlin and Heidelberg GmbH Co. K
2014
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J.A. Roth: Membrane-Bound Catechol-O-Methyltreansferase: A Reevaluation of Its Role in the O-Methylation of the Catecholamine Transmitters. D.J. Benos, S. Cunningham, R.R. Baker, K.B. Beason, Y. Oh, and P.R. Smith: Molecular Characteristics of Amiloride-Sensitive Sodium Channels. D. Pette and G. Vrbov : Adaptation of Mammalian Skeletal Muscle Fibers to Chronic Electrical Stimulation.