1. Brainerd, KE & Fuchigami, LH (1981) Acclimatization of aseptically cultured apple plants to low relative humidity. J. Amer. Soc. Hort. Sci. 156: 515?518
2. Cassells AC (1987) Plant container. European patent no. 87 9025781
3. Cassells, AC (1991) Screening for pathogens and contaminating organisms in micropropagation. In: Duncan, JM & Torrance, L (Eds) Techniques for the Rapid Diagnosis of Plant Pathogens (pp 179?191) Blackwell, Oxford
4. Cassells, AC & Minas, GJ (1993) Plant and in vitro factors influencing the micropropagation of ornamental plants by tissue culture. Scientia Hort. 21: 53?65
5. Cassells, A & Roche, T (1993) The influence of the gas permeability of the vessel lid and growthrooms light intensity on the characteristics of Dianthus microplants in vitro and ex vitrum. In: Lumsden, PJ, Nicholas, JR & Davies, WJ (Eds) Physiology, Growth and Development of Plants and Cells in Culture (in press) Kluwer, Dordrecht