A method for counting roots observed in minirhizotrons and their theoretical conversion to root length density S. T. BucklandC. D. CampbellE. I. Duff Research Article Pages: 1 - 9
Does hydraulic lift exist in shallow-rooted species? A quantitative examination with a half-shrub Gutierrezia sarothrae Changgui WanRonald E. SosebeeBobby L. McMichael Research Article Pages: 11 - 17
Growth and ion accumulation of two rapid-cycling Brassica species differing in salt tolerance Tie HeGrant R. Cramer Research Article Pages: 19 - 31
Plant symbiotic mutants as a tool to analyse nitrogen nutrition and yield relationship in field-growth peas (Pisum sativum L.) M. SaganB. NeyG. Duc Research Article Pages: 33 - 45
Re-sorption of organic compounds by roots of Zea mays L. and its consequences in the rhizosphere D. L. JonesP. R. Darrah Research Article Pages: 47 - 59
Low molecular weight humic substances stimulate H+-ATPase activity of plasma membrane vesicles isolated from oat (Avena sativa L.) roots Z. VaraniniR. PintonA. Maggioni Research Article Pages: 61 - 69
Photoperiod and root-zone temperature: Interacting effects on growth and mineral nutrients of maize A. MozafarP. SchreiberJ. J. Oertli Research Article Pages: 71 - 78
Cadmium distribution in maize inbred lines: Effects of pH and level of Cd supply P. J. FlorijnM. L. Van Beusichem Research Article Pages: 79 - 84
Frankia in the rhizosphere of nonhost plants: A comparison with root-associated N2-fixing Enterobacter, Klebsiella and Pseudomonas R. RönkköA. SmolanderK. Haahtela Research Article Pages: 85 - 95
Production of vitamins by Azospirillum brasilense in chemically-defined media B. RodelasV. SalmerónJ. González-López Research Article Pages: 97 - 101
Effects of tree clumps on soil characteristics in a humid savanna of West Africa (Lamto, Côte d'Ivoire) P. MordeletL. AbbadieJ. -C. Menaut Research Article Pages: 103 - 111
Reversibility of phosphorus sorption by ferruginous nodules H. TiessenM. K. AbekoeE. Owusu-Bennoah Research Article Pages: 113 - 124
Maize nodal root ramification: Absence of dormant primordia, root classification using histological parameters and consequences on sap conduction Marie-Odile JordanJiro HaradaKoou Yamazaki Research Article Pages: 125 - 143
Effect of abscisic acid application on root isoflavonoid concentration and nodulation of wild-type and nodulation-mutant soybean plants M. -J. ChoJ. E. Harper Short Communication Pages: 145 - 149
Does carbon isotope discrimination correlate with biological nitrogen fixation? J. D. KnightF. VerheesA. E. Slinkard Short Communication Pages: 151 - 153