LEADER 04536nam 22005894a 450 001 9910829919803321 005 20230828225138.0 010 $a1-280-74355-7 010 $a9786610743551 010 $a0-470-79967-6 010 $a0-470-99556-4 010 $a1-4051-7308-4 035 $a(CKB)1000000000342010 035 $a(EBL)284295 035 $a(OCoLC)437176169 035 $a(SSID)ssj0000222376 035 $a(PQKBManifestationID)11199256 035 $a(PQKBTitleCode)TC0000222376 035 $a(PQKBWorkID)10173883 035 $a(PQKB)10717776 035 $a(MiAaPQ)EBC284295 035 $a(EXLCZ)991000000000342010 100 $a20050831d2006 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 10$aPlant roots$b[electronic resource] $egrowth, activity, and interaction with soils /$fPeter J. Gregory 210 $aOxford ;$aAmes, Iowa $cBlackwell Pub.$d2006 215 $a1 online resource (342 p.) 300 $aDescription based upon print version of record. 311 $a1-4051-1906-3 320 $aIncludes bibliographical references and index. 327 $aPlant 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 Branching 327 $a2.3.3 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 anchorage 327 $a4.1.1 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 responses 327 $a6.1.1 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 acquisition 327 $a7.2.1 Rhizosolution composition and replenishment 330 $aThe 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 606 $aRoots (Botany) 615 0$aRoots (Botany) 676 $a575.54 676 $a581.498 700 $aGregory$b P. J$0860652 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910829919803321 996 $aPlant roots$91920510 997 $aUNINA