• Barlow PW, Rathfelder EL. 1984. Correlations between the dimensions of different zones of grass root apices, and their implication for morphogenesis and differentiation in roots. Annals of Botany 53: 249260.
  • Broshat TK. 1979. Principal component analysis in horticultural research. HortScience 14: 114117.
  • Cahn MD, Zobel RW, Bouldin DR. 1989. Relationship between root elongation rate and diameter and duration of growth of lateral roots of maize. Plant and Soil 119: 271279.
  • Clowes FAL. 1984. Size and activity of quiescent centres of roots. New Phytologist 96: 1321.
  • Colin-Belgrand M, Joannes H, Dreyer E, Pages L. 1989. A new data processing system tor root growth and ramification analysis: description of methods. Annales des Sciences Forestières 46 suppl. In: DreyerE et al., eds. Forest Tree Physiology. Paris : Elsevier/INRA, 305309.
  • Coutts MP. 1987. Developmental processes in tree root systems. Canadian Journal of Forest Research 17: 761767.
  • Feldman LJ, Torrey JG. 1975. The quiescent center and primary vascular tissue pattern formation in cultured roots of Zea. Canadian Journal of Botany 53: 27962803.
  • Fitter AH. 1991. Characteristics and functions of root systems. In Plant Roots, the Hidden Half. In: WaiselY, Eshel A & KafkafiU, eds. New York : Marcel Dekker, Inc., 324.
  • Granato TC, Raper CD. 1989. Proliferation of maize (Zea mays L.) roots in response to localized supply of nitrate. Journal of Experimental Botany 40: 263275.
  • Jordan MO, Harada J, Bruchou C, Yamazaki K. 1993. Maize nodal root ramification: absence of dormant primordia, root classification using histological parameters and consequences on sap conduction. Plant and Soil 153: 125143.
  • Lamond M. 1978. Péricarpe et cintetique de germination des glands de Chêne pédonculé (Quercus pedunculala Khrh.). Annales des Sciences Forestierés 35: 203210.
  • Lamond M, Tavakol R, Riedacker A. 1983. Influence d'un blocage de l'extremitë du pivot d'un semis de chêne sur la morphogenésè de son systeme racinaire. Annales des Sciences Forestieres 40: 227250.
  • Lebart L, Morineau A, Warwick KM. 1984. Multivariate descriptive analysis. New York : Wiley.
  • Neufeld HS, Durall DM, Rich PM, Tingey DT. 1989. A rootbox for quantitative observations on intact root systems. Plant and Soil 117: 295298.
  • Pagès L. 1992. Mini-rhizotrons transparents pour l'etude du système racinaire de jeunes plantes. Application à la caracterisation du développement racinaire de jeunes chênes (Quercus robitr L.). Canadian Journal of Botany 70: 18401847.
  • Pagès L, Kervella J, Chadoeuf J. 1993. Development of the root system of young peach trees (Prunus persica K. Batsch): a morphometrical analysis. Annals of Botany 71: 369375.
  • Pagès L, Pellerin S. 1994. Evaluation of parameters describing the architecture of field-grown maize. II. Density, length, and branching of lateral roots. Plant and Soil 164: 169176.
  • Riedacker A, Belgrand M. 1983. Morphogenese des systemes racinaires des semis et boutures de chêne pédonculé. Plant and Soil 71: 131146.
  • Scadeng DWF, MacLeod RD. 1976. The effect of sucrose concentration on cell proliferation and quiescence in the apical meristem of excised roots of Pisum sativum L. Annals of Bolany 40: 947955.
  • Van't Hof J, Ying HK. 1964. Relationship between the duration of the mitotic cycle, the rate of cell production and the rate of growth of Pisum roots at different temperatures. Cytologia 29: 399406.
  • Varney GT, Canny MJ, Wang XL, McCully ME. 1991. The branch roots of Zea. I. First order branches, their number, sizes and division into classes. Annals of Botany 67: 357364.
  • Waisel Y, Eshel A. 1991. Multiform behaviour of various constituents of one root system. In: WaiselY, Eshel A & KafkafiU, eds. Plant Roots, the Hidden Half. New York : Marcel Dekker, Inc., 3952.
  • Wilcox H. 1964. Xylem in roots of Pinus resinosa Ait. in relation to heterorliizy and growth activity. In: ZimmermannMH, ed. The Formation of Wood in Forest Trees. New York : Academic-Press, 459478.
  • Yorke JS, Sagar GR. 1970. Distribution of secondary root growth potential in the root system of Pisum satirum. Canadian Journal of Botany 48: 699704.