Home :: Faculty & Staff :: Directory :: Michael S. Greenwood
Michael S. Greenwood
Title: Ruth Hutchins Professor of Tree Physiology;
Coop. Prof., Dept. Plant Biol. & Path.
Degrees:
- B.A. Brown University, 1963, Botany
- M.F.; M.S. Yale University, 1965, 1966
- Ph.D. Yale University, 1969
Address: 122 Nutting Hall
Telephone: (207) 581-2838
E-mail: Greenwd@UMENFA.Maine.Edu
Current Research Interests:
KEY WORDS: Tree improvement, maturation, hybrid larch, pollen, physiology of rooting.
- Gene expression during maturation-related loss of adventitious rooting ability in loblolly pine seedlings.
- Effect of maturation on productivity of red spruce.
- Effect of temperature change on adaptation of northeastern conifers: role of temperature in determining range limits of jack and pitch pine, and early regeneration success of red spruce and balsam fir.
Selected Publications:
Sokol, K.A., M.S. Greenwood, and W.H. Livingston. 2003. Impacts of long-term diameter-limit harvesting on residual stands of red spruce in Maine. Northern Journal of Applied Forestry. In Press.
Greenwood, M.S., W.H. Livingston, M.E. Day, S.C. Kenaley, A.S. White, and J.C. Brissette. 2002. Contrasting modes of survival by jack and pitch pine at a common range limit. Can. J. For. Res. 32: 1662-1674.
Day, M.E., M.S. Greenwood and C. Diaz-Sala. 2002. Age- and size-related trends in woody plant shoot development: regulatory pathways and evidence for genetic control. Tree Physiology 22:507-513.
Day, M.E., M.S. Greenwood, and A.S. White. 2001. Age-related changes in foliar morphology and physiology of red spruce and their influence on declining phtosynthetic rates and productivity with tree age. Tree Physiology, 21:1195-1204.
Greenwood, M.S., X. Cui and F. Xu. 2001. Response to auxin changes during maturation-related loss of adventitious rooting competence in loblolly pine. Physiologica Plantarum, 111:373-380.
Hutchison, K.W., P.B. Singer, S. McInnis, C. Diaz-Sala, and M.S. Greenwood. 1999. Expansins are conserved in conifers and expressed in hypocotyls in response to exogenous auxin. Plant Physiol. 120:827-831.
Baltunis, B.S., and M.S. Greenwood. 1998. Variation in lateral shoot elongation patterns and hybrid vigor in Larix hybrids (Larix laricina, L. decidua, L. decidua x kaempferi, L. kaempferi x decidua, L. laricina x decidua, and L. laricina x kaempferi). Tree Physiol. 19:131-136.
Baltunis, B.S., M.S. Greenwood and T. Eysteinsson. 1998. Hybrid vigor in Larix: growth of intra- and interspecific hybrids of Larix dedecidua, L. laricina, and L. kaempferi after 5 years. Silvae genetica. 47:288-293.
Nsangou, M. and M.S. Greenwood. 1998. Physiological and morphological differences between somatic, in vitro germinated, and normal seedlings of red spruce (Picea rubens Sarg.). Can. J. For. Res. 28:1-5.
Smith, R.F. and M.S. Greenwood. 1997. Effects of cone-induction treatments on black spruce (Picea mariana) current-year needle development and gas exchange properties. Tree Physiology 17:407-414.
Hutchison, K.W., P.B. Singer, C. Diaz-Sala and M.S. Greenwood. 1997. Expansins are conserved in conifers and expressed in response to auxin. Proc. Nat. Acad. Sci. Recommended for publication pending revision.
Greenwood, M.S. C. Diaz-Sala, P. Singer, A Decker and K. Hutchison. 1997. Differential gene expression during maturation-caused decline in adventitious rooting ability in loblolly pine. In: Biology of root formation and development. Altman, A. and Waisel, Y. Eds. Plenum Publishing Corp. New York. Pp. 203-208.
Diaz-Sala, C., P.B. Singer, K.W. Hutchison and M.S. Greenwood. 1997. Molecular approaches to maturation-caused decline in adventitious rooting ability in loblolly pine (Pinus taeda L.). In: Somatic cell genetics and molecular genetics of trees. Ahuja, M.R.., Boerjan, W. and Neale, D.B. eds. Kluwer Academic Publishers, Dordrecht, Netherlands. Pp. 57-61.
Diaz-Sala, C., K.W. Hutchison, B. Goldfarb and M.S. Greenwood. 1996. Maturation-related loss in rooting competence by loblolly pine stem cuttings: The role of auxin transport, metabolism and tissue sensitivity. Physiologica Plantarum 97:481-490.
Gilmore, D.W., R.S. Seymour, W.A. Halteman and M.S. Greenwood. 1995. Canopy dynamics and the morphological development of Abies balsamea: effects of foliage age on specific leaf area and secondary vascular development. Tree Physiology 15:47-55.
Eysteinsson, Throstur and M.S. Greenwood. 1995. Flowering on long and short shoots of Larix laricina in response to differential timing of GA4/7 applications. Tree Physiology 15:467-469.
Greenwood, M.S. 1995. Juvenility and maturation in conifers: current concepts. Tree Physiology 15:433-438.
Mellerowicz, E.J., R.T. Riding and M.S. Greenwood. 1995. Nuclear and cytoplasmic changes associated with maturation in the vascular cambium of Larix laricina. Tree Physiology 15:443-449.
Smith, Ron and M.S. Greenwood. 1995. Effects of gibberellin A4/7, root pruning and cytokinins on seed and pollen cone production in black spruce (Picea mariana). Tree Physiology 15-457:465.
Mullin, T.J., G.W. Adams, J.D. Simpson, K.J. Tosh and M.S. Greenwood. 1994. Genetic parameters and correlations in tests of open-pollinated black spruce families in field and retrospective nursery test environments. Can. J. For. Res. 25:270-285.
Greenwood, M.S. and R.J. Weir. 1994. Genetic variation in rooting ability of loblolly pine cuttings: effect of auxin and family on rooting by hypocotyl cuttings. Tree Phys. 15:41-45.
Greenwood, M.S., and K.W. Hutchison. 1993. Maturation as a developmental process. In: Clonal Forestry I: Genetics and Biotechnology; M.R. Ahuja and W.J. Libby (eds.). Springer Verlag. Vol. 1, p. 14-33.
Takemoto, Yasuo, and M.S. Greenwood. 1993. Maturation in larch: age-related changes in xylem development in the long-shoot foliage and the main stem. Tree Physiology 13:253-262.
Eysteinsson, T., and M.S. Greenwood. 1993. Effects of maturation and gibberellin A4/7 on flowering and branching characteristics of Larix laricina. Can. J. For. Res. 23:14-20.
Sulzer, A.M., M.S. Greenwood, W.H. Livingston, and G. Adams. 1993. Early selection of black spruce using physiological and morphological criteria. Can. J. For. Res. 23:657-664.
Rebbeck, Joanne, K.F. Jensen, and M.S. Greenwood. 1993. Ozone effects on grafted mature and juvenile red spruce: photosynthesis, stomatal conductance, and chlorophyll concentration. Can. J. For. Res. 23:450-456
Greenwood, M.S. and H.A. Volkaert. 1992. Morphophysiological traits as markers for the early selection of conifer genetic families. Can. J. For. Res. 22:1001-1008.
Rebbeck, J., K.F. Jensen, and M.S. Greenwood. 1992. Ozone effects on grafted mature and juvenile red spruce: growth and foliar nutrient concentration. Can. J. For. Res. 22:756-760.
Graduate Course Taught: (click on link to view course syllabus)
