Root Demographics and Their Efficiencies in Sustainable Agriculture, Grasslands and Forest Ecosystems: Proceedings of the 5th Symposium of the International Society of Root Research, held 14–18 July 1996 at Madren Conference Center, Clemson University, Clemson, South Carolina, USA

Front Matter....Pages i-xiii
Front Matter....Pages 1-1
Influence of CO 2 enrichment and nitrogen fertilization on tissue chemistry and carbon allocation in longleaf pine seedlings....Pages 3-18
Root distribution and production in native and introduced pastures in the South American savannas....Pages 19-41
Role of plant root exudates in soil carbon and nitrogen transformation....Pages 43-54
Biomass of underground organs in Transbaikalian steppe phytocenoses....Pages 55-60
Effect of reclaimation on the dynamics of aboveground and underground phytomass of cultured meadow communities in different ecotypes of Lithuania....Pages 61-73
Front Matter....Pages 75-75
Root growth in Siberian larch ( Larix Sibirica Ledeb.) seedlings seasonal variations and effects of various growing regimes, prolonged cold storage and soil temperatures....Pages 77-88
Nutrient composition of Douglas-fir rhizosphere and bulk soil solutions....Pages 89-103
Seasonal development of loblolly pine lateral roots in response to stand density and fertilisation....Pages 105-113
Inhibition of fungal colonization on the rhizoplane of the CS 2 -producing plant, Mimosa pudica L.....Pages 115-126
Production of carbon disulfide (CS 2 ) from L-djenkolic acid in the roots of Mimosa pudica L.....Pages 127-137
Root biomass of the root-herb layer in coniferous ecosystems of Slovakia....Pages 139-145
Root-shoot relationships in plant adaptation to nitrogen deficiency....Pages 147-154
Morphological intraspecific diversity of below-ground organs in herbs and dwarf shrubs inhabiting the Urals....Pages 155-163
The effects of nitrogen, phosphorus and mycorrhizal infection on root and shoot growth of two contrasting genotypes of Betula pendula Roth....Pages 165-175
Turfgrass rooting characteristics of ‘Palmetto’, ‘FX-10’, and ‘Floratam’ St. Augustinegrasses and ‘Pensacola’ bahiagrass....Pages 177-187
Front Matter....Pages 189-189
Eastern gamagrass ( Tripsacum dactyloides ) root penetration into and chemical properties of claypan soils....Pages 191-211
Effect of submergence on the growth and development of aerenchyma in the roots of maize seedlings....Pages 213-221
Seasonal variation in root growth of three grass species under varying cutting treatments....Pages 223-235
Some aspects of the root system of tall fescue ( Festuca arundinacea Schreb.)....Pages 237-246
Dynamics of below-ground plant organs in grasslands....Pages 247-263
Front Matter....Pages 189-189
Effects of water supply in the upper and lower soil profiles of deep soil on root characteristics and dry matter production of winter wheat....Pages 265-273
Wheat root systems and water utilization in a semi-arid region....Pages 275-283
Common root rot of pea ( Pisum sativum L.): Oat pre-crop and traffic compaction effects in fine-textured mollisols....Pages 285-294
Soil compaction and soybean root growth....Pages 295-304
Fibrous carrot root responses to irrigation and compaction of sandy and organic soils....Pages 305-321
Tillage and phosphorus effects on silage corn....Pages 323-330
Root activity and acquisition of soil phosphorus and potassium....Pages 331-344
A study of the root systems of main crops in Northern China....Pages 345-356
Metabolic characteristics of growing and dormant Scotch pine roots in the course of tree development....Pages 357-367
Variation in fine-root biomass and net primary productivity due to conversion of tropical forests into plantation crops and agroecosystems....Pages 369-382
Managing VAM in a semi-arid agroecosystem....Pages 383-392
The role of endomycorrhizae in fine-root litter degradation....Pages 393-401
Evaluation of N 2 fixing capability of Acacia saligna under field conditions....Pages 403-416
Front Matter....Pages 417-417
Impact of roots on ground water quality....Pages 419-432
Fine-root response to nitrogen addition and removal at Gårdsjön — results from ingrowth cores....Pages 433-443
Root growth responses to lead in young maize seedlings....Pages 445-456
Nitrogen status and growth responses of wheat, and separation of osmotic from ion-specific effects of salinity by control of soil matric potential....Pages 457-469
Root response to rates of banded nitrogen and phosphorus fertilizers....Pages 471-482
Salt effect on K influx by two rice cultivars differing in salinity tolerance....Pages 483-491
Effect of NaCl salinity and nitrogen form on fatty acid composition of wheat roots....Pages 493-498
Front Matter....Pages 417-417
Atrazine suppression of fine root growth in corn....Pages 499-505
Front Matter....Pages 507-507
The root meristem and its relationship to root system architecture....Pages 509-521
Developmental models to describe the relationships between shoot and root growth in rice....Pages 523-531
Potassium uptake of Bothriochloa ....Pages 533-540
Cytokinin content in roots and shoots of wheat seedlings as affected by transpiration rate....Pages 541-544
Potassium circulation in plant axial organs as a complementary motive force for water absorption by the root....Pages 545-554
Selective inhibition of root branching in cucumber seedlings by compounds with gametocidic activity....Pages 555-564
Change in lipid composition of wheat roots on early phase of mechanical stress....Pages 565-571
Adapative abilities of wheat root cells under calcium load....Pages 573-582
Organic substances in the rooting medium....Pages 583-592
Hormonal response of wheat seedlings to polyethylene glycol-induced water deficiency....Pages 593-597
Changes in ABA and IAA content in the roots and shoots of wheat seedlings under nitrogen deficiency....Pages 599-605
Cytological studies of root apical meristem cells of Kochia prostrata (L.) Schrad....Pages 607-614
Immunoassay of cytokinins produced by rhizosphere microorganisms....Pages 615-621
Oppositely-directed water flows in roots with respect to the plant integral hydrodynamic system....Pages 623-630
Auxin-induced changes in ABA and cytokinin concentration in wheat seedlings....Pages 631-635
St. Augustinegrass root growth response following plant growth retardant application....Pages 637-650
Genetic control of adaptive root characteristics in white clover....Pages 651-662
Effect of aluminium, and selection for aluminium tolerance, on root hair length in white clover....Pages 663-671
The Importance of Root-Cap Mucilage for Plant And Soil....Pages 673-683
Front Matter....Pages 685-685
Analysis of some direct and indirect methods for estimating root biomass and production of forests at an ecosystem level....Pages 687-720
Root architecture and root/shoot-ratios of Norway spruce as affected by thinning intensity and soil type in Denmark....Pages 721-735
Automated Image Analysis for Separating Plant Roots from Soil Debris Elutriated from Soil Cores....Pages 737-744
Portable rhizotron and color scanner system for monitoring root development....Pages 745-756
Soil temperature effects from minirhizotron lighting systems....Pages 757-766
Water state and intercellular transport in roots: Characterization by nuclear magnetic resonance....Pages 767-775
Duration of lateral root formation in maize seedlings as affected by diverse factors....Pages 777-787
How deep should we measure root length to find a varietal difference of root distribution in wheat?....Pages 789-793