caa a22 4500 477109683 CHVBK 20180405111605.0 cr unu---uuuuu 170330e19960301xx s 000 0 eng 10.1007/BF02257572 doi (NATIONALLICENCE)springer-10.1007/BF02257572 A telescopic method for photographing within 8×8 cm minirhizotrons [Elektronische Daten] [Geert Poelman, Johan van de Koppel, Gerard Brouwer] A system for photographing within 8 × 8 cm minirhizotrons is described, that uses a telescopic lens instead of an endoscope. A comparison was made between the telescope system and the commonly used endoscope system. Photographs obtained with the telescope system are of superior quality as compared to those of the endoscope system, without a decrease in the field of view. Photographs obtained by the telescope system can easily be aligned in a sequence that shows the entire length of the minirhizotron wall as a single image. Furthermore, the telescope system is portable, shockproof, cheap, easily repaired, and can be operated by a single person. Kluwer Academic Publishers, 1996 endoscope nationallicence minirhizotron nationallicence root study methods nationallicence root growth nationallicence root distribution nationallicence Poelman Geert Laboratory of Plant Ecology, University of Groningen, P.O. Box 14, 9750 AA, Haren (Gr), The Netherlands aut van de Koppel Johan Laboratory of Plant Ecology, University of Groningen, P.O. Box 14, 9750 AA, Haren (Gr), The Netherlands aut Brouwer Gerard Research Institute for Agrobiology and Soil Fertility, P.O. Box 129, 9750 AC, Haren (Gr), The Netherlands aut Plant and Soil Kluwer Academic Publishers 185/1(1996-03-01), 163-167 0032-079X 185:1<163 1996 185 11104 https://doi.org/10.1007/BF02257572 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02257572 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Poelman Geert Laboratory of Plant Ecology, University of Groningen, P.O. Box 14, 9750 AA, Haren (Gr), The Netherlands aut NATIONALLICENCE 700 1- van de Koppel Johan Laboratory of Plant Ecology, University of Groningen, P.O. Box 14, 9750 AA, Haren (Gr), The Netherlands aut NATIONALLICENCE 700 1- Brouwer Gerard Research Institute for Agrobiology and Soil Fertility, P.O. Box 129, 9750 AC, Haren (Gr), The Netherlands aut NATIONALLICENCE 773 0- Plant and Soil Kluwer Academic Publishers 185/1(1996-03-01), 163-167 0032-079X 185:1<163 1996 185 11104 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer