Dissertations:
Hempel, M., 1977: Badania mozliwosci sterowania wegetatywnym rozmnazaniem gozdzika szklarniowego w warunkach in vitro. (Investigations into the possibility of controlling vegetative propagation of carnation under in vitro conditions). PhD Thesis. The Agricultural University in Lublin, pp.83 (in Polish)
Hempel, M., 1987: Morfologiczno-anatomiczne aspekty kulturtkanek gozdzika in vitro ze szczegolnym uwzglednieniem mikrorozmnazania. (Morphological and anatomical aspects of carnation tissue culture in vitro in particular respect to micropropagation). The Research Institute of Pomology and Floriculture in Skierniewice, pp.88 (in Polish)
Research papers:
Hempel, M., Kozak, D., 1976/77: Wstepne obserwacje nad wplywem pozywki na wzrost merystemow gozdzikow szklarniowych w kulturach in vitro. (Preliminary observations of media influence on the growth of carnation meristems in in vitro conditions). Prace Instytutu Sadownictwa i Kwiaciarstwa, ser.B, v.2, 53-55 (in Polish)
Hempel, M., 1978: Wzrost stozkow wzrostu gozdzika szklarniowego cv. William Sim na pozywkach o roznej zawartosci kwasu -naftylooctowego i kinetyny. (The growth of carnation cv.William Sim shoot tips on media with different concentrations of NAA and kinetin). Prace Instytutu Sadownictwa i Kwiaciarstwa, ser.B, v.3, 7-13 (in Polish)
Hempel, M., 1979: Studies on in vitro multiplication ofcarnations. I. The influence of some cytokinins on the differentiation of shoot apices. Acta Horticulturae 91, 317-321
Weryszko, E., Hempel, M., 1979: Studies on in vitro multiplication of carnations. II. The histological analysis of multiplantlets formation. Acta Horticulturae 91, 323-331
Kozak, D., Hempel, M., 1979: Studies on in vitro multiplication of carnations. III. The optimalization of multiplantlets formation. Acta Horticulturae 91, 333-337
Dabski, M., Malinowska, B., Hempel, M., 1979: Studies on in vitro multiplication of carnation. IV. The multiplication and rooting of shoots. Acta Horticulturae 91, 339-344
Malczewska, E., Molas, R., Skrzypczak, Cz., Hempel, M. 1979: Studies on in vitro multiplication of carnation. V. Callus growth and differentiation. Acta Horticulturae 91, 345-351
Hempel, M., Gabryszewska, E., 1983: Studies on in vitro multiplication of carnations. VI. The influence of some cytokinins on shoot proliferation. Prace Instytutu Sadownictwa i Kwiaciarstwa w Skierniewicach, ser.B, v.8, 143-148
Hempel, M., Weryszko, E., 1983: The anatomy of carnation grown in vitro. I. Anatomical changes of shoot apices. Prace Instytutu Sadownictwa i Kwiaciarstwa w Skierniewicach, ser.B, v.8, 149-157
Gabryszewska, E., Hempel, M., 1984: Propagation of Alstroemeria in vitro. Proceedings of International Symposium "Plant Tissue and Cell Culture Application to Crop Improvement", Olomouc, Czechoslovakia, 24-29 September 1984
Podwyszynska, M., Hempel, M., 1985: Identification and elimination of "slowly growing" bacteria from a micropropagated gerbera. Symposium "In vitro Problems Related to Mass Propagation of Horticultural Plants", 16-20 September 1985, Gembloux, Belgium
Gabryszewska, E., Hempel, M., 1985: Rooting of Kalanchoe in vitro and in vivo. Symposium "In vitro Problems Related to Mass Propagation of Horticultural Plants", 16-20 September 1985, Gembloux, Belgium
Hempel, M., Hempel, T., 1985: Long-term storage of gerbera rooted in vitro. Symposium "In vitro Problems Related to Mass Propagation of Horticultural Plants", 16-20 September 1985, Gembloux, Belgium
Hempel, M., Petos-Witkowska, B., Tymoszuk, J., 1985: The influence of cytokinins on multiplication and subsequent rooting of gerbera in vitro. Acta Horticulturae 167: 301-305
Gabryszewska, E., Hempel, M., 1985: The influence of cytokinins and auxins on Alstroemeria in tissue culture. Acta Horticulturae 167, 295-300
Hempel, T., Hempel, M., 1985: The influence of temperature, period and mode of storage of gerbera propagated in vitro on the quality of a stored material. Prace Instytutu Sadownictwa i Kwiaciarstwa w Skierniewicach, ser.B, tom 10, 85-90
Soczek, U., Hempel, M., 1986: Some aspects influencing efficiency of gerbera micropropagation. Prace Instytutu Sadownictwa i Kwiaciarstwa w Skierniewicach, ser. B, 11, 117-124
Gabryszewska, E., Hempel, M., Soczek, U., 1986: Suitability of Different Culture Methods for Micropropagation of Some Ornamental Plants. Abstracts of VI International Congress of Plant Tissue and Cell Culture, August 3-8, 1986 University of Minnesota, USA: 433
Soczek, U., Hempel, M., 1987: Influence of different in vitro culture methods on multiplication and acclimatization of Streptocarpus hybrids., Proceedings of Symposium Florizel 87 Arlon - Belgium. Plant Micropropagation in Horticultural Industries: 230-233
Soczek, U., Hempel, M., 1987: The influence of growth regulators on shoot development of Ficus lyrata in vitro. Prace Instytutu Sadownictwa i Kwiaciarstwa w Skierniewicach, ser. B
Hempel, M., Podwyszynska, M., Sobiczewski, P., 1988: Isolation and identification of bacteria from Gerbera jamesonii tissues grown in vitro. Prace Instytutu Sandownictwa i Kwiaciarstwa, Seria B, tom 12: 163-170
Hempel, M., Podwyszynska, M., Sobiczewski, P., 1988: Trials for elimination of bacteria from Gerbera jamesonii tissues grown in vitro. Prace Instytutu Sandownictwa i Kwiaciarstwa, Seria B, tom 12: 171-175
Podwyszynska, M., Hempel, M., 1988: The factors influencing acclimatization of Rosa hybrida plants multiplied in vitro to greenhouse conditions. Acta Horticulturae 226, 643-645
Soczek, U., Hempel, M., 1988: The influence of some organic compounds on multiplication of Gerbera in vitro. Acta Horticulturae 226, 640-642
Hempel, M., 1988: Microcomputers in micropropagation. Acta Horticulturae 226, 699-702
Tymoszuk, J., Hempel, M., 1988: The comparison of the quality of Kalanchoe blossfeldiana plants obtained by rooting of microcuttings in vitro and in vivo. Materials of the S12-117
Hempel, M., Meszka, K., 1988: Modelling of micropropagation. Acta Horticulturae 230, 137-144
Podwyszynska, M., Hempel, M., 1989: Wplyw nastepczy 6-benzyloaminopuryny na ukorzenianie sie pedow Rosa hybrida in vitro oraz ich aklimatyzacje w niesterylnym podlozu ogrodniczym. (The influence of BAP on the subsequent rooting of Rosa hybrida shoots in vitro and their growth in unsterile substrate) Prace Instytutu Sadownictwa i Kwiaciarstwa w Skierniewicach, ser.B, tom 13 (in Polish)
Soczek, U., Hempel, M., 1989: The influence of some organic medium compounds on branching of Gerbera shoots in vitro. Prace Instytutu Sadownictwa i Kwiaciarstwa, Seria B, tom 13: 87-97
Soczek, U., Hempel, M., 1989: Effect of cytokinins on growth and development of Anthurium x cultorum Birdsey shoot explants in vitro. Acta Horticulturae 251, 249-254
Soczek, U., Hempel, M., 1989: Wplyw niektorych organicznych skladnikow pozywki na mnozenie sie pedow gerbery in vitro. (The influence of selected organic media components on gerbera multiplication in vitro). Prace Instytutu Sadownictwa i Kwiaciarstwa, ser B, tom 13 (in Polish)
Review papers:
Hempel, M., 1979: Application of growth regulators for invitro propagation of ornamental plants. Acta Horticulturae 91, 247-267
Hempel, M., 1985: The influence of micropropagation on progeny plants. Acta Horticulturae 167, 263-272
Books and book chapters:
Hempel, M., 1976: Byliny ozdobne. (Ornamental perennials). The Agricultural Academy in Lublin pp. 81 (in Polish)
Hempel, M., 1991: Computing and information management in micropropagation. In: Bajaj, Y.P.S. (ed.). Biotechnology in Agriculture and Forestry, Vol. 17. High-Tech and Micropropagation I. Springer Verlag Berlin-Heidelberg, 469-494
Hempel, M., Debergh, P.C., 1991: Commercial micropropagation in Poland and Eastern European Countries. In: Debergh, P.C., Zimmerman, R.H. (eds). Micropropagation. Kluwer Academic Publishers, 167-171
Popular-science articles
Hempel, M., 1973: Pedzenie cietych lilakow.(Forcing of cut lilac branches). Ogrodnictwo 11, 337-339 (in Polish)
Hempel, M., Kozak, D., 1976: Rozwoj cietych pakow kwiatostanowych gerbery. (Development of cut gerbera inflorescences). Ogrodnictwo 11-12, 295-296 (in Polish)
Hempel, M., Gabryszewska, E., 1981: Mikrorozmnazanie gozdzika szklarniowego. (Carnation micropropagation). Biuletyn Instytutu Hodowli i Aklimatyzacji Roslin 145, 135-136 (in Polish)
Hempel, T., Hempel, M., 1984: Przechowywanie sadzonek gerbery otrzymanych metoda kultur tkankowych. (Storage of in vitro grown gerbera). Ogrodnictwo 7, 16-17 (in Polish)
Gabryszewska, E., Hempel, M., 1984: Propagation of Alstroemeria in vitro. Proceedings of International Symposium "Plant Tissue and Cell Culture Application to Crop Improvement", Olomouc, Czechoslovakia, 24-29 September
Hempel, T., Hempel, M., 1984: Storage of Gerbera propagated in vitro. Proceedings of International Symposium "Plant Tissue and Cell Culture Applications to Crop Improvement", Olomouc, Czechoslovakia, 24-29 September
Other publications
Hempel, M., 1974: Hodowla tkanek in vitro, a rosliny ozdobne. (Tisue culture and ornamental plants). Ogrodnictwo 12, 378-380 (in Polish)
Hempel, M., 1974: Fizjologia kwiatow cietych. (Physiologie of cut flowers). Ogrodnictwo 11, 348-350 (in Polish)
Hempel, M., Weryszko, E., 1975: Byliny na kwiat ciety. (Perennials for cut flowers). Kwiaty 2, 10,29 (in Polish)
Hempel, M., 1975: Hodowla tkanek in vitro, a rosliny ozdobne. Hodowla stozkow wzrostu gozdzika. (Tissue culture and ornamental plants. Carnation shoot tip culture). Ogrodnictwo 2 (in Polish)
Hempel, M., 1978: Rozmnazanie gozdzika w warunkach in vitro. (In vitro propagation of carnation). Ogrodnictwo 3, 68-70 (in Polish)
Hempel, M., 1980: Mozliwosci zastosowania kultur in vitro do produkcji materialu wyjsciowego gozdzika szklarniowego. (Application of tissue culture in production of carnation planting material). Co nowego w kwiaciaststwie, ISK w Skierniewicach, 77-81 (in Polish)
Hempel, M., Gabryszewska, E., 1981: Mikrorozmnazanie gozdzika szklarniowego. (Carnation micropropagation.). Biuletyn Instytutu Hodowli i Aklimatyzacji Roslin 145, 135-136 (in Polish)
Gabryszewska, E., Hempel, M., 1983: Rozmnazanie roslin kwiaciarskich in vitro. (Propagation of flowers in vitro). Ogrodnictwo 5 (in Polish)
Hempel, M., 1984: Rozmnazanie in vitro staje sie coraz bardziej popularne. (Propagation in vitro is more and more popular). Owoce, Warzywa, Kwiaty 7, 6 (in Polish)
Hempel, M., 1984: Rozmnazajmy rosliny in vitro. (Let's propagate plants in vitro). Owoce, Warzywa, Kwiaty 15, 8-9 (in Polish)
Hempel, M., 1984: Rozmnazajmy rosliny in vitro. Nowe nazwy. (Let's propagate plants in vitro. New terms). Owoce, Warzywa, Kwiaty 20, 10 (in Polish)
Hempel, M., 1984: Rozmnazajmy rosliny in vitro. Jakie byly poczatki. (Let's propagate plants in vitro. The beginnings). Owoce, Warzywa, Kwiaty 21, 9 (in Polish)
Tymoszuk, J., Hempel, M., 1984: Rozmnazanie gerbery in vitro. (Gerbera propagation in vitro). Instrukcja upowszechnieniowa ISK 13/84, pp. 2 (in Polish)
Tymoszuk, J., Hempel, M., 1984: Jak przystosowywac rosliny z kultur in vitro do warunkow szklarniowych? (How to acclimatise tissue culture plants to greenhouse conditions?). Instrukcja upowszechnieniowa ISK 17/84, pp. 2 (in Polish)
Hempel, M., 1985: Rozmnazajmy rosliny in vitro. Ogolnie o metodzie. (Let's propagate plants in vitro. About the method.). Owoce, Warzywa, Kwiaty 7, 12 (in Polish)
Hempel. M., 1985: Rozmnazajmy rosliny in vitro. Ogolnie o metodzie (II). (Let's propagate plants in vitro. About the method (II)). Owoce, Warzywa, Kwiaty 12, 8-9 (in Polish)
Hempel, M., 1985: Rozmnazajmy rosliny in vitro. Organizujemy laboratorium. (Let's propagate plants in vitro. Laboratory organisation.). Owoce, Warzywa, Kwiaty 18, 10 (in Polish)
Hempel, M., Soczek. U., 1985: Problemy zwiazane z rozmnazaniem gerbery in vitro. (Problems associated with gerbera in vitro propagation). Ogrodnictwo 12, 12-13 (in Polish)
Hempel, M., 1986: Reducing the cost of tissue culture propagation. Australian Horticulture, November, 66-71
Hempel, M., 1987: Jak obnizyc koszty mikrorozmnazania. (How to lower micropropagation costs). Co nowego w kwiaciarstwie, ISK w Skieniewicach, 113-118 (in Polish)
Podwyszynska, M., Hempel, M., 1988: Rozmnazanie roz in vitro (Propagation of Roses in vitro). Instrukcja upowszechnieniowa, ISK w Skierniewicach (in Polish)
Hempel, M., 1989: Cut flower production in Poland blossoms. Australian Horticulture, May, 36, 38-39
Hempel, M., 1989: A computer-based system points the way in micropropagation. Australian Horticulture, June, 44-45
Hempel, M., 1989: Does micropropagation influence plant quality? Australian Horticulture, November, 51-53, 56
Hempel, M., 1989: A new look at micropropagation. Australian Horticulture, December, 87-88
Hempel, M., 1991: Rootstocks for temperate fruit trees. Good Fruit and Vegetables 2, 31
Hempel, M., 1991: Computers - from data handling to expertise. Australian Horticulture, July, 75-76
Hempel, M., 1991: Selected expert systems. Australian Horticulture, December, 62-63
Hempel, M., 1993: From micropropagation to 'microponics'. Practical Hydroponics International, November/December, 21-23
Hempel, M., 1994: From micropropagation to 'microponics'. Part II. Practical Hydroponics & Greenhouses, May/June 17-20