Abstract
Needle primordia in buds and branch lengths were assessed in the crown of a plantation-grown white spruce tree. There was a gradation in needle primordia in buds in branches within the crown. The largest number of primordia was in the terminal bud of the leading main stem shoot, with the number in first-order whorl lateral shoot terminal buds decreasing from whorl 1 to whorl 4, below which buds contained a similar small number of primordia (about one-third as many as in the terminal shoot). Previous year's shoot elongation followed a similar pattern (i.e., elongation of whorl branches was greater closer to the top of the tree and elongation in the fourth through ninth whorls was about one-third that of the main stem leader). Higher order branches within whorls had within-branch gradation in shoot elongation and number of needle primordia, with older branches having as few as 16–30 primordia in buds and 3–4 cm elongation for high-order branches on older main stem whorls. There were strong correlations between the number of primordia in branch terminal buds and branch length/diameter and bud length/diameter/volume. In both black spruce and white spruce, there were strong correlations of number of needle primordia in main stem leader terminal buds with number of needle primordia in terminal buds of first and second whorl leaders.
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References
Bégin C, Filion L (1998) Black spruce (Picea mariana) architecture. Can J Bot 77:664–672
Cannell MGR, Johnstone RCB (1978) Free or lammas growth and progeny performance in Picea sitchensis. Silv Gen 27:248–254
Cochrane LA, Ford ED (1978) Growth of a Sitka spruce plantation: analysis and stochastic description of the development of the branching structure. J Appl Ecol 15:227–244
Colombo SJ (1986) Second-year shoot development in black spruce Picea mariana (Mill.) B.S.P. container seedlings. Can J For Res 16:68–73
Colombo SJ (1997) Frost hardening spruce container stock for overwintering in Ontario. New For 13:449–467
Kennedy MC, Ford ED, Ishii H (2004) Model analysis of the importance of reiteration for branch longevity in Pseudotsuga menziesii compared with Abies grandis. Can J Bot 82:892–909
Farnsworth KD, Niklas KJ (1995) Theories of optimization, form and function in branching architecture in plants. Funct Ecol 9:355–363
Fraser DA (1962) Apical and radial growth of white spruce (Picea glauca (Moench) Voss) at Chalk River, Ontario, Canada. Can J Bot 40:659–668
Fraser DA (1966) Vegetative and reproductive growth of black spruce (Picea mariana (Mill. B.S.P.) at Chalk River, Ontario, Canada. Can J Bot 44:567–580
Joyce DG (1987) Phenotypic variation in predetermined and free growth in sapling size western larch. Can J For Res 17:200–204
Kozlowski TT, Ward RC (1961) Shoot elongation characteristics of forest trees. For Sci 7:357–368
Macey DE, Arnott JT (1986) The effect of moderate moisture and nutrient stress on bud formation and growth of container-grown white spruce seedlings. Can J For Res 17:949–954
O’Reilly C, Owens JN, Arnott JT, Dunsworth BG (1994) Effect of nursery culture on morphological development of western hemlock seedlings during field establishment. I. Flushing, shoot elongation, and bud development. Can J For Res 24:53–60
Perttunen J, Sievänen R, Nikinmaa E (1998) LIGNUM: a model combining the structure and functioning of trees. Ecol Modell 108:189–198
Pollard DFW (1973) Provenance variation in phenology of needle initiation in white spruce. Can J For Res 3:589–593
Pollard DFW, Logan KT (1973) Growth acceleration and physiological screening of seedlings for a tree-improvement program. In: Illingworth K, Yeatman CW (eds) Proceedings of the 14th meeting of the Canadian Tree Improvement Association. Canadian Forest Service, Ottawa, Part 1, pp 137–141
Pollard DFW, Logan KT (1977) The effects of light intensity, photoperiod, soil moisture potential, and temperature on bud morphogenesis in Picea species. Can J For Res 7:415–421
Pollard DFW, Logan KT (1979) The response of bud morphogenesis in black spruce and white spruce provenances to environmental variables. Can J For Res 9:211–217
Powell GR (1991) Preformed and neoformed extension of shoots and sylleptic branching in relation to shoot length in Tsuga canadensis. Trees 5:107–116
Prusinkiewicz P (2004) Modeling plant growth and development, Curr Opin Plant Biol 7:79–83
Remphrey WR, Powell GR (1984) Crown architecture of Larix laricina saplings: shoot preformation and neoformation and their relationships to shoot vigour. Can J Bot 62:2181–2192
Templeton CWG, Odlum KD, Colombo SJ (1993) How to identify bud initiation and count needle primordia in first-year spruce seedlings. For Chron 69:431–437
Ununger J, Ekberg I, Kang H (1988) Genetic control and age-related changes in juvenile growth characters in Picea abies Scand. J For Res 3:55–66
von Wülisch G, Muhs H-J (1987) Effect of spacing on growth, especially predetermined and free shoot growth of Norway spruce (Picea abies (L.) Karst.). Silv Gen 36:72–76
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Colombo, S., Templeton, C. Bud and crown architecture of white spruce and black spruce. Trees 20, 633–641 (2006). https://doi.org/10.1007/s00468-006-0078-y
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DOI: https://doi.org/10.1007/s00468-006-0078-y