04655nam 22006494a 450 991101923250332120200520144314.0978661074355197812807435591280743557978047079967304707996769780470995563047099556497814051730871405173084(CKB)1000000000342010(EBL)284295(OCoLC)437176169(SSID)ssj0000222376(PQKBManifestationID)11199256(PQKBTitleCode)TC0000222376(PQKBWorkID)10173883(PQKB)10717776(MiAaPQ)EBC284295(Perlego)2766065(EXLCZ)99100000000034201020050831d2006 uy 0engur|n|---|||||txtccrPlant roots growth, activity, and interaction with soils /Peter J. GregoryOxford ;Ames, Iowa Blackwell Pub.20061 online resource (342 p.)Description based upon print version of record.9781405119061 1405119063 Includes bibliographical references and index.Plant Roots Growth, Activity and Interaction with Soils; Contents; Preface; 1. Plants, Roots and the Soil; 1.1 The evolution of roots; 1.2 Functional interdependence of roots and shoots; 1.2.1 Balanced growth of roots and shoots; 1.2.2 Communication between roots and shoots; 1.3 Roots and the soil; 1.3.1 The root-soil interface; 1.3.2 Root-induced soil processes; 2. Roots and the Architecture of Root Systems; 2.1 Nomenclature and types of root; 2.2 Root structure; 2.2.1 Primary structure; 2.2.2 Secondary structure; 2.3 Extension and branching; 2.3.1 Extension; 2.3.2 Branching2.3.3 Root hairs2.4 The root tip; 2.4.1 The root cap and border cells; 2.4.2 Mucilage; 2.5 Architecture of root systems; 3. Development and Growth of Root Systems; 3.1 Measurement of root systems; 3.1.1 Washed soil cores; 3.1.2 Rhizotrons and minirhizotrons; 3.1.3 Other techniques; 3.2 Root system development; 3.3 Size and distribution of root systems; 3.3.1 Mass and length; 3.3.2 Depth of rooting; 3.3.3 Distribution of roots; 3.4 Root:shoot allocation of dry matter; 3.5 Root longevity and turnover; 3.6 Modelling of root systems; 4. The Functioning Root System; 4.1 Root anchorage4.1.1 Uprooting4.1.2 Overturning; 4.2 Water uptake; 4.2.1 The concept of water potential; 4.2.2 The soil-plant-atmosphere continuum; 4.2.3 Water uptake by plant root systems; 4.3 Nutrient uptake; 4.3.1 Nutrient requirements of plants and the availability of nutrients; 4.3.2 Nutrient movement in soil solution; 4.3.3 Nutrient uptake and movement across the root; 4.3.4 Nutrient uptake by root systems; 5. Roots and the Physico-Chemical Environment; 5.1 Temperature; 5.1.1 Root development and growth; 5.1.2 Root orientation; 5.1.3 Other root functions; 5.2 Gravity and other tropistic responses6.1.1 Root-rhizosphere communication6.1.2 Interactions with bacteria; 6.1.3 Interactions with fungi; 6.1.4 Interactions with protozoa; 6.1.5 Interactions with nematodes and mesofauna; 6.2 Symbiotic associations; 6.2.1 Rhizobia and N fixation; 6.2.2 Mycorrhizas; 6.3 Root pathogens and parasitic associations; 6.3.1 Fungal diseases; 6.3.2 Nematodes; 6.3.3 Parasitic weeds; 6.4 Root herbivory by insects; 7. The Rhizosphere; 7.1 Rhizodeposition; 7.1.1 Quantities of rhizodeposits; 7.1.2 Composition of rhizodeposits; 7.1.3 Nitrogen rhizodeposits; 7.2 Chemical changes affecting nutrient acquisition7.2.1 Rhizosolution composition and replenishmentThe root system is a vital part of the plant and therefore understanding roots and their functioning is key to agricultural, plant and soil scientists. In Plant Roots Professor Peter Gregory brings together recent developments in techniques and an improved understanding of plant and soil interactions to present a comprehensive look at this important relationship, covering: Root response to, and modification of, soils Genetic control of roots' responses to the environment Use of modern techniques in imaging, molecular biology and analytical chemistry Roots (Botany)Roots (Botany)575.5/4Gregory P. J860652MiAaPQMiAaPQMiAaPQBOOK9911019232503321Plant roots1920510UNINA