• ABRAHAMSON, W. G. (1975). Reproductive strategies in dewberries. Ecology, 56, 721.
  • BJÖRKMAN, O. (1973). Comparative studies on photosynthesis in higher plants. In: Photophysiology (Ed. by A. C.Giese), pp. 163. VII. Academic Press, New York .
  • BUNCE, J. A. & CHABOT, B. F. (1976). Distribution of plants along a moisture gradient in relation to carbon balance. Abstr., Bull, Ecol. Soc. 57, 5.
  • CHABOT, B. F. & LEWIS, A. R. (1976). Thermal acclimation of photosynthesis in northern red oak. Photosynthetica, 10, 130.
  • CHABOT, B. F. & CHABOT, J. F. (1977). Effects of light and temperature on leaf anatomy and photosynthesis in Fragaria vesca. Oecologia, 26, 363.
  • CHARLES-EDWARDS, D. A., CHARLES-EDWARDS, J. & SANT, F. I. (1974). Leaf photosynthetic activity in six temperate grass varieties in contrasting light and temperature environments. J. exp. Bot. 25, 715.
  • CUNNINGHAM, G. L. & STRAIN, B. R. (1969). Ecological significance of seasonal leaf variability in a desert shrub. Ecology, 50, 400.
  • DARROW, G. M. (1966). The Strawberry Holt, Rinehart and Winston, New York .
  • EVANS, L. T. (1975). Crop Physiology. Cambridge University Press.
  • GADGIL, M. & SOLBRIG, O. T. (1972). The concept of r- and K-selection: evidence from wild flowers and some theoretical considerations. Amer. Natur. 106, 14.
  • HARPER, J. L. & OGDEN, J. (1970). The reproductive strategy of higher plants. I. The concept of strategy with reference to Senecio vulgaris L. J. Ecol 58, 681.
  • HEICHEL, G. H. (1971). Confirming measurements of respiration and photosynthesis with dry matter accumulation. Photosynthetica, 5, 93.
  • KITTREDGE, J. (1948). Forest Influences. McGraw-Hill Book Co., New York .
  • MOONEY, H. A. & HARRISON, A. T. (1970). The influence of conditioning temperature on subsequent temperature-related photosynthetic capacity in higher plants, pp. 411417. In: Prediction and Measurement of Photosynthetic Productivity (Ed. by C. T.DeWitt). Centre for Agricultural Publishing and Documentation, Wageningen .
  • NOBEL, P. S., ZARAGOZA, L. J. & SMITH, W. K. (1975). Relation between mesophyll surface area, photosynthetic rate, and illumination level during development for leaves of Plectranthus parviflorus Henckel. Plan: Physiol. 55, 1067.
  • OGDEN, I. (1974). The reproductive strategy of higher plants. II. The reproductive strategy or Tussilago farfara L. J. Ecol. 62, 291.
  • PATTERSON, D. T., BUNCE, J. A., ALBERTE. R. S. & VAN VOLKENBURGH, E. (1977). Photosynthesis in relation to leaf characteristics of cotton from controlled and field environments. Plant Physiol. 59, 384.
  • PEET, M. (1975). Physiological responses of Phaseolus vulgaris L. cultivars to growth environment. Ph.D. thesis. Cornell University, Ithaca, N.Y.
  • RASCHKE, K., PIERCE, M. & POPIELA, C. C. (1976). Abscisic acid content and stomatal sensitivity to CO, in leaves of Xanthein strumarium L. after pre-treatments in warm and cold growth chambers. Plant Physiol. 57, 115.
  • SAWADA, S., MATSUSHIMA, H. & MIYACHI, S. (1974). Effects of growth temperature on photosynthetic carbon metabolism in green plants. III. Differences in structure, photosynthetic activities and activities of ribulose diphosphate carboxylase and glycolate oxidase in leaves of wheat grown under varied temperatures. Plant and Cell Physiol. 15, 239.
  • VINCE-PRUE, D., GUTTRIDGE, C. G. & BUCK, M. W. (1976). Photo-control of petiole elongation in light-grown strawberry plants. Planta, 131, 109.