Division of Agriculture and Natural Resources
University of California
Division of Agriculture and Natural Resources

Dr Theodore M DeJong

Photo of Dr Theodore M DeJong
Professor   CE Pomologist-AES   Plant Physiologist-AES
Plant Sciences
Mail stop 2
3037 Wickson Hall
Davis, CA 95616
(530) 752-1843
tmdejong@ucdavis.edu Create VCard

Also in:
Kearney Agricultural Research & Extension Center

Biography

Ph.D., University of California, Davis, 1977

Research Statement
The research in my laboratory is primarily field-oriented and directed toward gaining a better understanding of the environmental physiology of tree crops. We are interested in elucidating the factors that determine, enhance, or limit both the photosynthetic efficiency of fruit trees and the allocation of assimilates toward various fruit tree components. On the basis of this research we are attempting to develop improved, physiologically sound, horticultural practices that increase production efficiency of tree crops.

The primary approach that we have been using in these studies is the development of a computer model that simulates seasonal tree carbon assimilation and partitioning on a daily basis. This model is based on simple concepts of carbon supply and demand for maintenance, growth and storage functions of various organs. The concepts developed in the model permit new approaches to studying the integrated effects of environmental stresses such as temperature, water and nutrients on canopy photosynthesis and partitioning of assimilates to vegetative vs. reproductive plant parts. Some of the horticultural systems that we are currently evaluating are: various conformations of high density hedgerow orchards, optimization of fruit thinning practices, adjustments in fertilizer and irrigation application rates and timing, and rootstock selection or tree size control. The crops that we are most closely associated with are peaches, nectarines, plums, and prunes.

Specialty

Environmental physiology; tree crop physiology; carbon partitioning and crop modeling; pomology; physiology and management of fruit tree crops; peach rootstock development and physiology; dried plum breeding

Areas of Expertise (click to see all ANR academics with this expertise)

Bibliography

Non-Peer Reviewed

  • Kirschbaum, D. S., K. D. Larson, et al. (2010). "Late-season nitrogen applications in high-latitude strawberry nurseries improve transplant production pattern in warm regions." African Journal of Biotechnology 9(7): 1001-1007.
  • Tombesi, S., R. S. Johnson, et al. (2010). "Relationships between xylem vessel characteristics, calculated axial hydraulic conductance and size-controlling capacity of peach rootstocks." Annals of Botany 105(2): 327-331.
  • Spann, T. M., R. H. Beede, et al. (2009). "Contributions of short- and long-shoots to yield of 'Kerman' pistachio (Pistacia vera L.)." Scientia Horticulturae 121(4): 495-500.
  • Heerema, R. J., S. A. Weinbaum, et al. (2009). "Is nitrogen stress more apparent in shaded, fruiting almond spurs than in exposed, non-fruiting spurs?" Journal of Horticultural Science & Biotechnology 84(3): 355-359.
  • Lopez, G., R. R. Favreau, et al. (2008). "Integrating simulation of architectural development and source-sink behaviour of peach trees by incorporating Markov chains and physiological organ function submodels into L-PEACH." Functional Plant Biology 35(9-10): 761-771.
  • Spann, T. M., R. H. Beede, et al. (2008). "Neoformed growth responses to dormant pruning in mature and immature pistachio trees grown on different rootstocks." Journal of Horticultural Science & Biotechnology 83(1): 137-142.
  • Spann, T. M., R. H. Beede, et al. (2008). "Seasonal carbohydrate storage and mobilization in bearing and non-bearing pistachio (Pistacia vera) trees." Tree Physiology 28(2): 207-213.
  • Heerema, R. J., S. A. Weinbaum, et al. (2008). "Spur survival and return bloom in almond [Prunus dulcis (Mill.) DAWebb] varied with spur fruit load, specific leaf weight, and leaf area." Journal of Horticultural Science & Biotechnology 83(2): 274-281.
  • Gordon, D. and T. M. Dejong (2007). "Current-year and subsequent-year effects of crop-load manipulation and epicormic-shoot removal on distribution of long, short and epicormic shoot growth in Prunus persica." Annals of Botany 99(2): 323-332.
  • Basile, B., D. R. Bryla, et al. (2007). "Growth patterns and morphology of fine roots of size-controlling and invigorating peach rootstocks." Tree Physiology 27(2): 231-241.
  • Lopez, G., R. S. Johnson, et al. (2007). "High spring temperatures decrease peach fruit size." California Agriculture 61(1): 31-34.
  • Basile, B., L. I. Solari, et al. (2007). "Intra-canopy variability of fruit growth rate in peach trees grafted on rootstocks with different vigour-control capacity." Journal of Horticultural Science & Biotechnology 82(2): 243-256.
  • Spann, T. M., R. H. Beede, et al. (2007). "Preformation in vegetative buds of pistachio (Pistacia vera): relationship to shoot morphology, crown structure and rootstock vigor." Tree Physiology 27(8): 1189-1196.
  • Lopez, G. and T. M. Dejong (2007). "Spring temperatures have a major effect on early stages of peach fruit growth." Journal of Horticultural Science & Biotechnology 82(4): 507-512.
  • Kirschbaum, D. S., K. D. Larson, et al. (2006). "Biomass and total nonstructural carbohydrate partitioning in relation to nursery digging date, and subsequent growth, development and fruiting pattern of strawberry runner plants propagated in california high-latitude nurseries." Hortscience 41(4): 996-996.
  • Pernice, F., L. Solari, et al. (2006). "Comparison of growth potentials of epicormic shoots of nectarine trees grown on size-controlling and vigorous rootstocks." Journal of Horticultural Science & Biotechnology 81(2): 211-218.
  • Solari, L. I., S. Johnson, et al. (2006). "Hydraulic conductance characteristics of peach (Prunus persica) trees on different rootstocks are related to biomass production and distribution." Tree Physiology 26(10): 1343-1350.
  • Cao, T., M. V. McKenry, et al. (2006). "Influence of ring nematode infestation and calcium, nitrogen, and indoleacetic acid applications on peach susceptibility to Pseudomonas syringae pv. syringae." Phytopathology 96(6): 608-615.
  • DeJong, T. M., R. Favreau, et al. (2006). "Modeling fruit tree architectural growth, source-sink interactions, and physiology with L-PEACH." Hortscience 41(4): 1010-1010.
  • Gordon, D., C. Damiano, et al. (2006). "Preformation in vegetative buds of Prunus persica: factors influencing number of leaf primordia in overwintering buds." Tree Physiology 26(4): 537-544.
  • Solari, L. I., S. Johnson, et al. (2006). "Relationship of water status to vegetative growth and leaf gas exchange of peach (Prunus persica) trees on different rootstocks." Tree Physiology 26(10): 1333-1341.
  • DeJong, T. M. (2006). "Root influences on shoot growth in peach trees." Hortscience 41(4): 921-921.
  • Gordon, D., A. Rosati, et al. (2006). "Seasonal effects of light exposure, temperature, trunk growth and plant carbohydrate status on the initiation and growth of epicormic shoots in Prunus persica." Journal of Horticultural Science & Biotechnology 81(3): 421-428.
  • Teo, G., Y. Suziki, et al. (2006). "Silencing leaf sorbitol synthesis alters long-distance partitioning and apple fruit quality." Proceedings of the National Academy of Sciences of the United States of America 103(49): 18842-18847.
  • Solari, L. I. and T. M. DeJong (2006). "The effect of root pressurization on water relations, shoot growth, and leaf gas exchange of peach (Prunus persica) trees on rootstocks with differing growth potential and hydraulic conductance." Journal of Experimental Botany 57(9): 1981-1989.
  • Solari, L. I., F. Pernice, et al. (2006). "The relationship of hydraulic conductance to root system characteristics of peach (Prunus persica) rootstocks." Physiologia Plantarum 128(2): 324-333.
  • Marsal, J., G. Lopez, et al. (2005). "Heterogeneity in fruit distribution and stem water potential variations in peach trees under different irrigation conditions." Journal of Horticultural Science & Biotechnology 80(1): 82-86.
  • Cao, T., R. A. Duncan, et al. (2005). "Interaction between nitrogen-fertilized peach trees and expression of syrB, a gene involved in syringomycin production in Pseudomonas syringae pv. syringae." Phytopathology 95(5): 581-586.
  • DeBuse, C. J., D. V. Shaw, et al. (2005). "Response to inbreeding of seedling traits in a Prunus domestica L. breeding population." Journal of the American Society for Horticultural Science 130(6): 904-911.
  • Allen, M. T., P. Prusinkiewicz, et al. (2005). "Using L-systems for modeling source-sink interactions, architecture and physiology of growing trees: the L-PEACH model." New Phytologist 166(3): 869-880.
  • Girona, J., J. Marsal, et al. (2004). "A comparison of the combined effect of water stress and crop load on fruit growth during different phenological stages in young peach trees." Journal of Horticultural Science & Biotechnology 79(2): 308-315.
  • Heerema, R. J., T. M. DeJong, et al. (2004). "Almond Spur Autonomy: Leaf Growth, Floral Initiation and Spur Survival." Hortscience 39(4): 851-851.
  • Johnson, H. A., S. A. Weinbaum, et al. (2004). "Crop Load Effects on Subsequent Peach Floral Development, Pistil Size at Anthesis and Fruit Size at Maturity." Hortscience 39(4): 851-851.
  • Spann, T. M., R. H. Beede, et al. (2004). "Effect of Rootstock on Shoot Preformation and Neoformation in Pistachio cv. Kerman." Hortscience 39(4): 760-760.
  • Lampinen, B. D., K. A. Shackel, et al. (2004). "Leaf and canopy level photosynthetic responses of French prune (Prunus domestica L. 'French') to stem water potential based deficit irrigation." Journal of Horticultural Science & Biotechnology 79(4): 638-644.
  • Weibel, A., R. S. Johnson, et al. (2003). "Comparative vegetative growth responses of two peach cultivars grown on size-controlling versus standard rootstocks." Journal of the American Society for Horticultural Science 128(4): 463-471.
  • Basile, B., J. Marsal, et al. (2003). "Daily shoot extension growth of peach trees growing on rootstocks that reduce scion growth is related to daily dynamics of stem water potential." Tree Physiology 23(10): 695-704.
  • Rosati, A. and T. M. Dejong (2003). "Estimating photosynthetic radiation use efficiency using incident light and photosynthesis of individual leaves." Annals of Botany 91(7): 869-877.
  • Basile, B., J. Marsal, et al. (2003). "Hydraulic conductance of peach trees grafted on rootstocks with differing size-controlling potentials." Journal of Horticultural Science & Biotechnology 78(6): 768-774.
  • Marsal, J., B. Basile, et al. (2003). "Influence of branch autonomy on fruit, scaffold, trunk and root growth during Stage III of peach fruit development." Tree Physiology 23(5): 313-323.
  • Basile, B., E. J. Reidel, et al. (2003). "Leaf potassium concentration, CO2 exchange and light interception in almond trees (Prunus dulcis (Mill) D.A. Webb)." Scientia Horticulturae 98(2): 185-194.
  • Berman, M. E. and T. M. Dejong (2003). "Seasonal patterns of vegetative growth and competition with reproductive sinks in peach (Prunus persica)." Journal of Horticultural Science & Biotechnology 78(3): 303-309.
  • Basile, B., M. J. Mariscal, et al. (2002). "Japanese plum (Prunus salicina L.) fruit growth: Seasonal pattern of source/sink limitations." Journal American Pomological Society 56(2): 86-93.
  • Niederholzer, F. J. A., T. M. DeJong, et al. (2001). "Effectiveness of fall versus spring soil fertilization of field-grown peach trees." Journal of the American Society for Horticultural Science 126(5): 644-648.
  • Klein, I., G. Esparza, et al. (2001). "Effects of irrigation deprivation during the harvest period on leaf persistence and function in mature almond trees." Tree Physiology 21(14): 1063-1072.
  • Esparza, G., T. M. DeJong, et al. (2001). "Effects of irrigation deprivation during the harvest period on nonstructural carbohydrate and nitrogen contents of dormant, mature almond trees." Tree Physiology 21(14): 1081-1086.
  • Esparza, G., T. M. DeJong, et al. (2001). "Effects of irrigation deprivation during the harvest period on yield determinants in mature almond trees." Tree Physiology 21(14): 1073-1079.
  • Rosati, A., F. W. Badeck, et al. (2001). "Estimating canopy light interception and absorption using leaf mass per unit leaf area in Solanum melongena." Annals of Botany 88(1): 101-109.
  • Rufat, J. and T. M. DeJong (2001). "Estimating seasonal nitrogen dynamics in peach trees in response to nitrogen availability." Tree Physiology 21(15): 1133-1140.
  • Weinbaum, S. A., T. M. DeJong, et al. (2001). "Reassessment of seed influence on return bloom and fruit growth in 'Bartlett' pear." Hortscience 36(2): 295-297.
  • Rosati, A., K. R. Day, et al. (2000). "Distribution of leaf mass per unit area and leaf nitrogen concentration determine partitioning of leaf nitrogen within tree canopies." Tree Physiology 20(4): 271-276.
  • DeJong, T. M., W. Tsuji, et al. (1999). "Comparative economic efficiency of four peach production systems in California." Hortscience 34(1): 73-78.
  • DeJong, T. M. (1999). "Developmental and environmental control of dry-matter partitioning in peach." Hortscience 34(6): 1037-1040.
  • Southwick, S. M., M. E. Rupert, et al. (1999). "Effects of nitrogen fertigation on fruit yield and quality of young 'French' prune trees." Journal of Horticultural Science & Biotechnology 74(2): 187-195.
  • Rosati, A., G. Esparza, et al. (1999). "Influence of canopy light environment and nitrogen availability on leaf photosynthetic characteristics and photosynthetic nitrogen-use efficiency of field-grown nectarine trees." Tree Physiology 19(3): 173-180.
  • Cao, T., R. J. Sayler, et al. (1999). "Influence of stem diameter, water content, and freezing-thawing on bacterial canker development in excised stems of dormant stone fruit." Phytopathology 89(10): 962-966.
  • Grossman, Y. L. and T. M. DeJong (1998). "Training and pruning system effects on vegetative growth potential, light interception, and cropping efficiency in peach trees." Journal of the American Society for Horticultural Science 123(6): 1058-1064.
  • Berman, M. E., A. Rosati, et al. (1998). "Using simulation modeling to estimate the relationship between date of fruit maturity and yield potential in peach." Fruit Varieties Journal 52(4): 229-235.
  • Berman, M. E. and T. M. DeJong (1997). "Crop load and water stress effects on daily stem growth in peach (Prunus persica)." Tree Physiology 17(7): 467-472.
  • Berman, M. E. and T. M. DeJong (1997). "Diurnal patterns of stem extension growth in peach (Prunus persica): Temperature and fluctuations in water status determine growth rate." Physiologia Plantarum 100(2): 361-370.
  • Retzlaff, W. A., L. E. Williams, et al. (1997). "Growth and yield response of commercial bearing-age 'Casselman' plum trees to various ozone partial pressures." Journal of Environmental Quality 26(3): 858-865.
  • Saenz, J. L., T. M. DeJong, et al. (1997). "Nitrogen stimulated increases in peach yields are associated with extended fruit development period and increased fruit sink capacity." Journal of the American Society for Horticultural Science 122(6): 772-777.
  • Berman, M. E. and T. M. DeJong (1996). "Water stress and crop load effects on fruit fresh and dry weights in peach (Prunus persica)." Tree Physiology 16(10): 859-864.
  • Grossman, Y. L. and T. M. Dejong (1995). "Maximum Fruit-Growth Potential and Seasonal Patterns of Resource Dynamics during Peach Growth." Annals of Botany 75(6): 553-560.
  • Grossman, Y. L. and T. M. Dejong (1995). "Maximum Fruit-Growth Potential Following Resource Limitation during Peach Growth." Annals of Botany 75(6): 561-567.
  • Grossman, Y. L. and T. M. Dejong (1995). "Maximum Vegetative Growth-Potential and Seasonal Patterns of Resource Dynamics during Peach Growth." Annals of Botany 76(5): 473-482.
  • DeJong, T. M. and Y. L. Grossman (1995). "Quantifying sink and source limitations on dry matter partitioning to fruit growth in peach trees." Physiologia Plantarum 95(3): 437-443.
  • Pavel, E. W. and T. M. Dejong (1995). "Seasonal Patterns of Nonstructural Carbohydrates of Apple (Malus-Pumila Mill) Fruits - Relationship with Relative Growth-Rates and Contribution to Solute Potential." Journal of Horticultural Science 70(1): 127-134.
  • Dejong, T. M. and Y. U. L. Grossman (1994). "A Supply-and-Demand Approach to Modeling Annual Reproductive and Vegetative Growth of Deciduous Fruit-Trees." Hortscience 29(12): 1435-1442.
  • Grossman, Y. L. and T. M. Dejong (1994). "Carbohydrate Requirements for Dark Respiration by Peach Vegetative Organs." Tree Physiology 14(1): 37-48.
  • Retzlaff, W. A., W. W. Barnett, et al. (1994). "Ozone Air-Pollution Increases Petroleum Spray Oil Phytotoxicity." Hortscience 29(2): 93-94.
  • Grossman, Y. L. and T. M. Dejong (1994). "Peach - a Simulation-Model of Reproductive and Vegetative Growth in Peach-Trees." Tree Physiology 14(4): 329-345.
  • Pavel, E. W. and T. M. Dejong (1993). "Estimating the Photosynthetic Contribution of Developing Peach (Prunus-Persica) Fruits to Their Growth and Maintenance Carbohydrate Requirements." Physiologia Plantarum 88(2): 331-338.
  • Moing, A., R. M. Carlson, et al. (1993). "Evaluation of Own-Rooted Vs Budded Prune (Prunus-Domestica L) Seedling Genotypes." Fruit Varieties Journal 47(1): 38-46.
  • Girona, J., M. Mata, et al. (1993). "Patterns of Soil and Tree Water Status and Leaf Functioning during Regulated Deficit Irrigation Scheduling in Peach." Journal of the American Society for Horticultural Science 118(5): 580-586.
  • Crisosto, C. H., W. A. Retzlaff, et al. (1993). "Postharvest Performance Evaluation of Plum (Prunus-Salicina Lindel, Casselman) Fruit Grown under 3 Ozone Concentrations." Journal of the American Society for Horticultural Science 118(4): 497-502.
  • Pavel, E. W. and T. M. Dejong (1993). "Relative Growth-Rate and Its Relationship to Compositional Changes of Nonstructural Carbohydrates in the Mesocarp of Developing Peach Fruits." Journal of the American Society for Horticultural Science 118(4): 503-508.
  • Pavel, E. W. and T. M. Dejong (1993). "Seasonal Co2 Exchange Patterns of Developing Peach (Prunus-Persica) Fruits in Response to Temperature, Light and Co2 Concentration." Physiologia Plantarum 88(2): 322-330.
  • Pavel, E. W. and T. M. Dejong (1993). "Source-Limited and Sink-Limited Growth Periods of Developing Peach Fruits Indicated by Relative Growth-Rate Analysis." Journal of the American Society for Horticultural Science 118(6): 820-824.
  • Johnson, R. S., D. F. Handley, et al. (1992). "Long-Term Response of Early Maturing Peach-Trees to Postharvest Water Deficits." Journal of the American Society for Horticultural Science 117(6): 881-886.
  • Retzlaff, W. A., T. M. Dejong, et al. (1992). "Photosynthesis and Growth-Response of Almond to Increased Atmospheric Ozone Partial Pressures." Journal of Environmental Quality 21(2): 208-216.
  • Retzlaff, W. A., L. E. Williams, et al. (1992). "Photosynthesis, Growth, and Yield Response of Casselman Plum to Various Ozone Partial Pressures during Orchard Establishment." Journal of the American Society for Horticultural Science 117(5): 703-710.
  • Visser, G. T. and T. M. Dejong (1992). "The Effects of Wind Protective Urban Arrangements on the Ventilation Energy-Consumption." Journal of Wind Engineering and Industrial Aerodynamics 44(1-3): 2587-2597.
  • Deng, X., S. A. Weinbaum, et al. (1991). "Pistillate Flower Abortion in Serr Walnut Associated with Reduced Carbohydrate and Nitrogen Concentrations in Wood and Xylem Sap." Journal of the American Society for Horticultural Science 116(2): 291-296.
  • Klein, I., S. A. Weinbaum, et al. (1991). "Relationship between Fruiting, Specific Leaf Weight, and Subsequent Spur Productivity in Walnut." Journal of the American Society for Horticultural Science 116(3): 426-429.
  • Dejong, T. M. and K. R. Day (1991). "Relationships between Shoot Productivity and Leaf Characteristics in Peach Canopies." Hortscience 26(10): 1271-1273.
  • Ziska, L. H., T. M. Dejong, et al. (1991). "Sodium and Chloride Distribution in Salt-Stressed Prunus-Salicina, a Deciduous Tree Species." Tree Physiology 8(1): 47-57.
  • Klein, I., T. M. Dejong, et al. (1991). "Specific Leaf Weight and Nitrogen Allocation Responses to Light Exposure within Walnut Trees." Hortscience 26(2): 183-185.
  • Klein, I., S. A. Weinbaum, et al. (1991). "Spur Light Exposure as a Primary External Cause for Derivation of Dris Norms in Walnut Trees." Journal of Plant Nutrition 14(5): 463-484.
  • Retzlaff, W. A., L. E. Williams, et al. (1991). "The Effect of Different Atmospheric Ozone Partial Pressures on Photosynthesis and Growth of 9 Fruit and Nut Tree Species." Tree Physiology 8(1): 93-105.
  • Castagnoli, S. P., T. M. Dejong, et al. (1990). "Autumn Foliage Applications of Znso4 Reduced Leaf Nitrogen Remobilization in Peach and Nectarine." Journal of the American Society for Horticultural Science 115(1): 79-83.
  • Walton, E. F., T. M. Dejong, et al. (1990). "Comparison of 4 Methods Calculating the Seasonal Pattern of Plant-Growth Efficiency of a Kiwifruit Berry." Annals of Botany 66(3): 299-307.
  • Walton, E. F. and T. M. Dejong (1990). "Estimating the Bioenergetic Cost of a Developing Kiwifruit Berry and Its Growth and Maintenance Respiration Components." Annals of Botany 66(4): 417-424.
  • Day, K. R. and T. M. Dejong (1990). "Girdling of Early Season Mayfire Nectarine Trees." Journal of Horticultural Science 65(5): 529-534.
  • Walton, E. F. and T. M. Dejong (1990). "Growth and Compositional Changes in Kiwifruit Berries from 3 Californian Locations." Annals of Botany 66(3): 285-298.
  • Ziska, L. H., J. R. Seemann, et al. (1990). "Salinity Induced Limitations on Photosynthesis in Prunus-Salicina, a Deciduous Tree Species." Plant Physiology 93(3): 864-870.
  • Dejong, T. M. and E. F. Walton (1989). "Carbohydrate Requirements of Peach Fruit-Growth and Respiration." Tree Physiology 5(3): 329-335.
  • Ziska, L. H., R. B. Hutmacher, et al. (1989). "Changes in Leaf Water Status Associated with Salinity in Mature, Field-Grown Prunus-Salicina." Physiologia Plantarum 77(1): 141-149.
  • Dejong, T. M. and J. Goudriaan (1989). "Modeling Peach Fruit-Growth and Carbohydrate Requirements - Reevaluation of the Double-Sigmoid Growth-Pattern." Journal of the American Society for Horticultural Science 114(5): 800-804.
  • DeJong, T. M., K. R. Day, et al. (1989). "Partitioning of leaf nitrogen with respect to within canopy light exposure and nitrogen availability in peach (Prunus persica)." Trees-Structure and Function 3(2): 89-95.
  • Day, K. R., T. M. Dejong, et al. (1989). "Postharvest and Preharvest Summer Pruning of Firebrite Nectarine Trees." Hortscience 24(2): 238-240.
  • Deng, X., S. A. Weinbaum, et al. (1989). "Use of labeled nitrogen to monitor transition in nitrogen dependence from storage to current-year uptake in mature walnut trees." Trees-Structure and Function 3(1): 11-16.
  • Deng, X., S. A. Weinbaum, et al. (1989). "Utilization of Nitrogen from Storage and Current-Year Uptake in Walnut Spurs during the Spring Flush of Growth." Physiologia Plantarum 75(4): 492-498.
  • Dejong, T. M., K. Day, et al. (1988). "Partitioning of Leaf Nitrogen-Content (Photosynthetic Capacity) with Respect to Leaf Canopy, Light Exposure, and Nitrogen Availability in Peach (Prunus-Persica)." Hortscience 23(3): 821-821.
  • Larson, K. D., T. M. Dejong, et al. (1988). "Physiological and Growth-Responses of Mature Peach-Trees to Postharvest Water-Stress." Journal of the American Society for Horticultural Science 113(3): 296-300.
  • Walton, E. F. and T. M. Dejong (1987). "Comparison of Methods for Determining the Cost of Plant-Growth." Hortscience 22(5): 1109-1109.
  • Handley, D. F., R. S. Johnson, et al. (1987). "Long-Term Responses of Mature Peach-Trees to Postharvest Water-Stress." Hortscience 22(5): 1116-1116.
  • Dejong, T. M., J. F. Doyle, et al. (1987). "Seasonal Patterns of Reproductive and Vegetative Sink Activity in Early and Late Maturing Peach (Prunus-Persica) Cultivars." Physiologia Plantarum 71(1): 83-88.
  • Dejong, T. M. (1986). "Effects of Reproductive and Vegetative Sink Activity on Leaf Conductance and Water Potential in Prunus-Persica Batsch,L." Scientia Horticulturae 29(1-2): 131-137.
  • Dejong, T. M. (1986). "Fruit Effects on Photosynthesis in Prunus-Persica." Physiologia Plantarum 66(1): 149-153.
  • Dejong, T. M. and J. F. Doyle (1985). "Seasonal Relationships between Leaf Nitrogen-Content (Photosynthetic Capacity) and Leaf Canopy Light Exposure in Peach (Prunus-Persica)." Plant Cell and Environment 8(9): 701-706.
  • Lin, T. S., J. C. Crane, et al. (1984). "Comparative-Study of Leaf Morphology, Photosynthesis, and Leaf Conductance in Selected Pistacia Species." Journal of the American Society for Horticultural Science 109(3): 325-330.
  • Dejong, T. M. and J. F. Doyle (1984). "Leaf Gas-Exchange and Growth-Responses of Mature Fantasia Nectarine Trees to Paclobutrazol." Journal of the American Society for Horticultural Science 109(6): 878-882.
  • Dejong, T. M., A. Tombesi, et al. (1984). "Photosynthetic Efficiency of Kiwi (Actinidia-Chinensis Planch) in Response to Nitrogen Deficiency." Photosynthetica 18(1): 139-145.
  • Dejong, T. M. and J. F. Doyle (1984). "Seasonal Partitioning of Leaf Photosynthetic Capacity and Tree Canopy Light Environment." Hortscience 19(3): 583-583.
  • Dejong, T. M. (1983). "Co2 Assimilation Characteristics of 5 Prunus Tree Fruit Species." Journal of the American Society for Horticultural Science 108(2): 303-307.
  • Tombesi, A., T. M. Dejong, et al. (1983). "Net Co2 Assimilation Characteristics of Walnut Leaves under Field and Laboratory Conditions." Journal of the American Society for Horticultural Science 108(4): 558-561.
  • Williams, L. E., T. M. Dejong, et al. (1982). "Effect of Changes in Shoot Carbon-Exchange Rate on Soybean Root Nodule Activity." Plant Physiology 69(2): 432-436.
  • Dejong, T. M., B. G. Drake, et al. (1982). "Gas-Exchange Responses of Chesapeake Bay Tidal Marsh Species under Field and Laboratory Conditions." Oecologia 52(1): 5-11.
  • Dejong, T. M. and D. A. Phillips (1982). "Water-Stress Effects on Nitrogen Assimilation and Growth of Trifolium-Subterraneum L Using Dinitrogen or Ammonium-Nitrate." Plant Physiology 69(2): 416-420.

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