Rhizodeposition and C-partitioning of Lolium perenne in axenic culture affected by nitrogen supply and defoliation

• Published in: Plant and soil Vol. 216; no. 1-2; pp. 155 - 164
• Main Authors: Paterson, E. (Macaulay Land Use Research Inst., Craigiebuckler, Aberdeen (United Kingdom). Plants Group), Sim, A
• Format: Journal Article
• Language: English
• Published: Dordrecht Kluwer Academic Publishers 01.01.1999; Springer; Springer Nature B.V
• Subjects: ABONOS NITROGENADOS; Acid soils; Agricultural soils; Agronomy. Soil science and plant productions; ammonium nitrate; ANATOMIA DE LA PLANTA; ANATOMIE VEGETALE; application rate; Biological and medical sciences; CARBON; CARBONE; CARBONO; DEFOLIACION; DEFOLIATION; Dry matter; dry matter accumulation; ENGRAIS AZOTE; Fundamental and applied biological sciences. Psychology; General agronomy. Plant production; Grasses; Grasslands; LOLIUM PERENNE; Microcosms; nitrogen; Nitrogen fertilization; NITROGEN FERTILIZERS; Nitrogen, phosphorus, potassium fertilizations; nutrient availability; Nutrient concentrations; Nutrient cycles; nutrient solutions; NUTRIENT TRANSPORT; PLANT ANATOMY; Plant roots; Plants; RACINE; Radiocarbon; RAICES; Rhizodeposition; root exudates; root shoot ratio; root systems; ROOTS; Sand; Soil biochemistry; Soil-plant relationships. Soil fertility. Fertilization. Amendments; TRANSPORT DES SUBSTANCES NUTRITIVES; TRANSPORTE DE NUTRIENTES; Grassland; Productivity; Nitrogen fertilization; Organic matter; Monocotyledones; Axenic culture; Rhizodeposit; Root; Browsing; Bioavailability; Nitrogen; Carbon; Dose activity relation; Carbon cycle; Defoliation; Gramineae; Morphology; Angiospermae; Nutrient; Spermatophyta; Fodder crop; Lolium perenne

This study investigated the effects of N-supply and partial defoliation on C-partitioning, root morphology and soluble rhizodeposition, for Lolium perenne grown in axenic sand culture systems percolated with nutrient solution. Plants were grown for 36 d in nutrient solutions with differing N concent...