List price   € 59   Buy this book   This title is available in ActaHort USB-drive or e-Acta format - not available in print Convener   B.S. Bennedsen  Editors   W.TH.M. van Meurs, T.H. Gieling, B.S. Bennedsen  Publication date   1 March 1998  ISBN   978-90-66058-00-2  ISSN   0567-7572 (print)   2406-6168 (electronic)  Number of articles   31  Volumes   1  Place   Tune Landboskole, Greve, Denmark  Online articles: Preface SENSORS AND MEASUREMENT, A REVIEW (Th.H. Gieling) NEURAL NETWORKS FOR THE CLASSIFICATION OF POT PLANTS (J. Meuleman, J. Dijkstra) COMBINED MEASUREMENT OF SPECTRAL AND SPATIAL PROPERTIES TO DETERMINE ACTUAL GROWTH PARAMETERS OF A CROP (H. Nielsen, K. Henriksen) DETECTING SURFACE CONDENSATION ON TOMATO PLANTS IN GREENHOUSES (Y.Q. Wei, B.J. Bailey, D. Wilkinson, A. Lockwood, B.C. Stenning) A FIRMNESS SENSOR FOR QUALITY ESTIMATION OF INDIVIDUAL FRUITS (E. Moltó, E. Selfa, R. Pons, I. Fornes, F. Juste) QUALITY MEASUREMENTS OF TOMATOES BY IMAGE ANALYSIS (H.M. Nielsen, W. Paul) MACHINE VISION FOR NON DESTRUCTIVE EVALUATION OF FRUIT QUALITY (E. Moltó, L.A. Ruiz, N. Aleixos, J. Vázquez, F. Juste) COMPUTER VISION SYSTEM FOR ON-LINE SORTING OF POT PLANTS BASED ON LEARNING TECHNIQUES (A.J.M. Timmermans) GRADING DIEFFENBACHIA PLANTS AT DIFFERENT GROWTH STAGES USING DIGITAL IMAGE PROCESSING (J. Dijkstra, J. Meuleman) NONDESTRUCTIVE ULTRASONIC MEASUREMENT METHOD FOR EVALUATION AVOCADO RIPENING (A. Mizrach, U. Flitsanov) SENSING AND ANALYZING THE ACOUSTIC RESPONSE OF AVOCADO AND MANGO USING A FLEXIBLE PIEZOELECTRIC TRANSDUCER (I. Shmulevich, N. Galili, N. Benichou) SPEAKING PLANT APPROACH BASED ON MATHEMATICAL IDENTIFICATION FOR ENVIRONMENT CONTROL PURPOSES (M. Van Pee, D. Berckmans) THE PLANTS-ON-LINE-BOX : A TOOL FOR FUTURE GREENHOUSE CROP MANAGEMENT: SYSTEM CONCEPTS, DESIGN, AND USER INTERFACE (J. Mazanti Hansen, N. Ehler) THE PLANTS-ON-LINE-BOX: MONITORING WHOLE PLANT NET PHOTOSYNTHESIS AS A TOOL TO EVALUATE PLANT PRODUCTIVITY AND STRESS IN BEGONIA ELATIOR VAR ‘ILONA’ (N. Ehler, J. Mazanti Hansen) HUMIDITY SENSORS IN THE GREENHOUSE (K. Schurer, Gert J.W. Visscher) MEASURING WATER CONTENT OF HORTICULTURAL SUBSTRATES USING TIME-DOMAIN REFLECTOMETRY (F.F. da Silva, R. Wallach, Y. Chen) MEASURING OF THE WATER CONTENT OF GREENHOUSE SOIL BY TDR, FD AND TENSIOMETERS (C. Werkhoven, E.A. van Os) SENSING MOISTURE IN SOILS AND SUBSTRATES (K. Schurer, Max A. Hilhorst) NEAR INFRARED SENSORS (NIR) FOR PEAT MOISTURE DETERMINATION (M.J. O'Mahony, S.M. Ward, J. Lynch) SIMULTANEOUS MEASUREMENTS OF WATER STRESS WITH LVDT SENSORS AND ELECTROTENSIOMETERS: APPLICATION IN PEPPER PLANTS GROWN IN TWO TYPES OF PERLITES (M. Cohen, R. Savé, C. Biel, O. Marfà) PERFORMANCE OF HEAT-BALANCE SAP-FLOW GAUGE ON ROSE (Mark A. Rose, M. Rose) USE OF STEM DENDROMETERS AS INDICATORS OF WATER STRESS IN DRIP-IRRIGATED CITRUS TREES (C. Ginestar, J.R. Castel) A SIMPLE DEVICE FOR ACCURATE STRAIN MEASUREMENTS ON APPLE FRUITS (B. Dobrzañski, R. Rybczyñski) ENHANCEMENT OF THE INTELLIGENT LEAF SENSOR (N.A. Sigrimis, N. Rerras) PLANT MEASUREMENT BY ACOUSTIC EMISSION SENSOR (L. Okushima, S. Sase, T. Ohtani, M. Shimojyo, Y. Higo) LOW-COST SYSTEM FOR ON-LINE MEASUREMENT OF PLANT TRANSPIRATION AND PHOTOSYNTHESIS IN GREENHOUSE PRODUCTION (U. Schmidt) A QUICK METHOD TO DETERMINE THE MECHANICAL CONDITION OF CARROT ROOTS (K.A. Golacki) WHOLE-PLANT NET PHOTOSYNTHESIS, AN INDICATION OF ACTUAL GROWTH, A TOOL FOR GREENHOUSE CLIMATE CONTROL: A CASE STUDY WITH FICUS BENJAMINA 'NATASJA' (P. Lootens, P. Vandecasteele) PREDICTING THE MATURITY OF ORANGES WITH NON DESTRUCTIVE SENSORS (V. Steinmetz, E. Biavati, E. Molto, R. Pons, I. Fornes) DETERMINATION OF WEEDS AND ARTICHOKE PLANTS POSITION IN COLOUR IMAGES FOR LOCAL HERBICIDE ACTION (E. Moltó, N. Aleixos, L.A. Ruiz, J. Vázquez, F. Fabado, F. Juste) SENSORS FOR HORTICULTURAL CLIMATE CONTROL COMPUTERS (G. Coulon)